U.S. flag

An official website of the United States government

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Https

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PubAg

Main content area

You searched for: Publication year rev 7985-2015 Remove constraint Publication year rev: 7985-2015 Subject term China Remove constraint Subject term: China Subject term chemical oxygen demand Remove constraint Subject term: chemical oxygen demand
Start Over

Search

50  Search Results

1 - 50 of 50
Number of results to display per page

Search Results

1. A high efficiency biological system for treatment of coal gasification wastewater – a key in-depth technological research

Author:
Qinhong Ji; Salma Tabassum; Guangxin Yu; Chunfeng Chu; Zhenjia Zhang
Source:
RSC advances 2015 v.5 no.50 pp. 40402-40413
ISSN:
2046-2069
Subject:
acidification; acids; ammonium nitrogen; biogas; chemical oxygen demand; coal; color; decolorization; energy; energy use and consumption; fluidized beds; gas chromatography-mass spectrometry; gasification; hydrolysis; oxidation; phenol; pollutants; sewage sludge; wastewater; wastewater treatment; China
Abstract:
... Coal is the main energy resource in China, hence pollution caused by coal gasification wastewater has been severe for decades. A three stage system was adopted to treat coal gasification wastewater; anaerobic hydrolysis acidification (333 days), aerobic oxidation (300 days), and ozonation–aerobic fluidized bed process (220 days) with the lowest HRT of 45 h. After more than a year of trials, high e ...
DOI:
10.1039/c5ra04215a

2. A pollutant load hierarchical allocation method integrated in an environmental capacity management system for Zhushan Bay, Taihu Lake

Author:
Shidong Liang; Haifeng Jia; Cong Yang; Charles Melching; Yongping Yuan
Source:
Science of the total environment 2015 v.533 pp. 223-237
ISSN:
0048-9697
Subject:
ammonia; atmospheric deposition; case studies; chemical oxygen demand; drainage; eutrophication; fluid mechanics; lakes; nitrogen content; phosphorus; pollutants; stakeholders; total maximum daily load; towns; villages; water quality analysis; China
Abstract:
... An environmental capacity management (ECM) system was developed to help practically implement a Total Maximum Daily Load (TMDL) for a key bay in a highly eutrophic lake in China. The ECM system consists of a simulation platform for pollutant load calculation and a pollutant load hierarchical allocation (PLHA) system. The simulation platform was developed by linking the Environmental Fluid Dynamics ...
DOI:
10.1016/j.scitotenv.2015.06.116

3. Advanced treatment of biologically pretreated coal gasification wastewater by a novel heterogeneous Fenton oxidation process

Author:
Haifeng Zhuang; Hongjun Han; Wencheng Ma; Baolin Hou; Shengyong Jia; Qian Zhao
Source:
Journal of Environmental Sciences 2015 v.33 pp. 12-20
ISSN:
1001-0742
Subject:
Fourier transform infrared spectroscopy; activated carbon; bacterial artificial chromosomes; biodegradability; catalysts; catalytic activity; chemical oxygen demand; coal; engineering; ferric oxide; gasification; hydrogen peroxide; hydroxyl radicals; oxidation; pH; phenols; pollutants; sewage sludge; temperature; toxicity; wastewater; wastewater treatment; China
Abstract:
... Sewage sludge from a biological wastewater treatment plant was converted into sewage sludge based activated carbon (SBAC) with ZnCl2 as activation agent, which was used as a support for ferric oxides to form a catalyst (FeOx/SBAC) by a simple impregnation method. The new material was then used to improve the performance of Fenton oxidation of real biologically pretreated coal gasification wastewat ...
DOI:
10.1016/j.jes.2014.12.015

4. An integrated system dynamics model developed for managing lake water quality at the watershed scale

Author:
Hui Liu; Gaboury Benoit; Tao Liu; Yong Liu; Huaicheng Guo
Source:
Journal of environmental management 2015 v.155 pp. 11-23
ISSN:
0301-4797
Subject:
case studies; chemical oxygen demand; decision making; dynamic models; freshwater; hydrologic models; industry; issues and policy; lakes; nitrogen content; phosphorus; pollution control; socioeconomic development; wastewater treatment; water quality; watersheds; China
Abstract:
... A reliable system simulation to relate socioeconomic development with water environment and to comprehensively represent a watershed's dynamic features is important. In this study, after identifying lake watershed system processes, we developed a system dynamics modeling framework for managing lake water quality at the watershed scale. Two reinforcing loops (Development and Investment Promotion) a ...
DOI:
10.1016/j.jenvman.2015.02.046

5. An obstacle to China’s WWTPs: the COD and BOD standards for discharge into municipal sewers

Author:
Zhenliang Liao; Tiantian Hu; Scott Albert C. Roker
Source:
Environmental science and pollution research international 2015 v.22 no.21 pp. 16434-16440
ISSN:
0944-1344
Subject:
biochemical oxygen demand; chemical oxygen demand; pollutants; wastewater treatment; China
Abstract:
... In 2001, a construction campaign regarding wastewater treatment plants (WWTPs) occurred in China. Unfortunately, the treatment has not yet achieved anticipated effectiveness. A critical reason for this is that the influent chemical oxygen demand (COD) and biochemical oxygen demand (BOD) concentrations in WWTPs are unacceptably low. This paper indicates that a fundamental, but commonly overlooked c ...
DOI:
10.1007/s11356-015-5307-8

6. Application of BMP to urban runoff control using SUSTAIN model: Case study in an industrial area

Author:
Jie Gao; Rusong Wang; Jinlou Huang; Min Liu
Source:
Ecological modelling 2015 v.318 pp. 177-183
ISSN:
0304-3800
Subject:
best management practices; bioretention areas; case studies; chemical oxygen demand; ecosystem services; floods; green roofs; industrialization; land use; models; nitrogen content; nonpoint source pollution; phosphorus; planning; pollutants; ponds; quantitative analysis; stormwater; total suspended solids; urban runoff; urbanization; water quality; zinc; China
Abstract:
... Flooding and stormwater pollution by urban runoff owing to the effects of urbanization and industrialization on both hydrology and water quality have become a serious issue. Best management practices (BMP) are proposed to mitigate floods and reduce pollutants, the performance of which can be quantitatively assessed by the System for Urban Stormwater Treatment and Analysis Integration (SUSTAIN) mod ...
DOI:
10.1016/j.ecolmodel.2015.06.018

7. Bioaugmentation treatment of municipal wastewater with heterotrophic-aerobic nitrogen removal bacteria in a pilot-scale SBR

Author:
Qian Chen; Jinren Ni; Tao Ma; Tang Liu; Maosheng Zheng
Source:
Bioresource technology 2015 v.183 pp. 25-32
ISSN:
0960-8524
Subject:
bacteria; bioaugmentation; carbon; chemical oxygen demand; microbial communities; municipal wastewater; nitrogen; nutrients; quantitative polymerase chain reaction; wastewater treatment; China
Abstract:
... PCN bacteria capable of heterotrophic-aerobic nitrogen removal was successfully applied for bioaugmented treatment of municipal wastewater in a pilot-scale SBR. At an appropriate COD/N ratio of 8, the bioaugmentation system exhibited stable and excellent carbon and nutrients removal, the averaged effluent concentrations of COD, NH4+-N, TN and TP were 20.6, 0.69, 14.1 and 0.40mg/L, respectively, wh ...
DOI:
10.1016/j.biortech.2015.02.022

8. Calculation of permissible load capacity and establishment of total amount control in the Wujin River Catchment—a tributary of Taihu Lake, China

Author:
Ruibin Zhang; Hailong Gao; Wenting Zhu; Wei Hu; Rui Ye
Source:
Environmental science and pollution research international 2015 v.22 no.15 pp. 11493-11503
ISSN:
0944-1344
Subject:
ammonium nitrogen; chemical oxygen demand; control methods; decision making; environmental management; lakes; models; pollutants; rivers; sustainable development; water management; water quality; watersheds; China
Abstract:
... The deterioration of water quality in Taihu Lake, China, has caused widespread concern in recent years. The primary pollution sources of Taihu Lake are its inflow rivers. Effective environmental water management strategies need to be implemented in these rivers to improve the water quality of Taihu Lake and to promote sustainable development in the region. In this study, the QUAL2K model is used i ...
DOI:
10.1007/s11356-015-4311-3

9. Can dispersions be used for discriminating water quality status in coastal ecosystems? A case study on biofilm-dwelling microbial eukaryotes

Author:
Guangjian Xu; Wei Zhang; Henglong Xu
Source:
Ecological indicators 2015 v.57 pp. 208-214
ISSN:
1470-160X
Subject:
ammonium nitrogen; case studies; chemical oxygen demand; coastal water; community structure; data collection; dispersions; dissolved oxygen; eukaryotic cells; humans; marine ecosystems; nutrients; pH; species diversity; water quality; China; Yellow Sea
Abstract:
... Multivariate dispersions are an effective ecological indicator to evaluate the environmental heterogeneity and human disturbance in global ecological research. To explore the feasibility of the dispersions for assessing water quality status, a dataset of the biofilm-dwelling microbial eukaryote communities was studied in coastal waters of the Yellow Sea, northern China at two numerical resolutions ...
DOI:
10.1016/j.ecolind.2015.05.004

10. Characteristics and risks of secondary pollutants generation during compression and transfer of municipal solid waste in Shanghai

Author:
Xiaoyuan Wang; Bing Xie; Dong Wu; Muhammad Hassan; Changying Huang
Source:
Waste management 2015 v.43 pp. 1-8
ISSN:
0956-053X
Subject:
air; air pollution; ammonia; ammonium nitrogen; animals; autumn; chemical oxygen demand; corrosion; deodorization; hydrogen sulfide; lipid content; methane; municipal solid waste; pH; phosphorus; pollutants; risk; seasonal variation; summer; temperature; vegetable oil; volatile organic compounds; waste management; wastewater; China
Abstract:
... The generation and seasonal variations of secondary pollutants were investigated during three municipal solid waste (MSW) compression and transfer in Shanghai, China. The results showed that the raw wastewater generated from three MSW transfer stations had pH of 4.2–6.0, COD 40,000–70,000mg/L, BOD5 15,000–25,000mg/L, ammonia nitrogen (NH3-N) 400–700mg/L, total nitrogen (TN) 600–1500mg/L, total pho ...
DOI:
10.1016/j.wasman.2015.07.005

11. Characteristics of phytoplankton distribution for assessment of water quality in the Zhalong Wetland, China

Author:
N. N. Zhang; S. Y. Zang
Source:
International journal of environmental science and technology 2015 v.12 no.11 pp. 3657-3664
ISSN:
1735-1472
Subject:
Anabaena; Chlorella vulgaris; Navicula; Selenastrum; Trachelomonas; chemical oxygen demand; chlorophyll; environmental factors; indicator species; nitrogen content; phosphorus; physicochemical properties; phytoplankton; water quality; wetlands; China
Abstract:
... Phytoplankton community structures of water environmental were monitored from July to August 2010 in Zhalong Wetland in northeast China. Phytoplankton community was obtained from samples taken from 341 stations with different environmental conditions. Physicochemical parameters (chemical oxygen demand, the total nitrogen, the total phosphorus, chlorophyll a (Chl-a)) were measured simultaneously fo ...
DOI:
10.1007/s13762-015-0795-0

12. Chemometrics data of water quality and environmental heterogeneity analysis in Pu River, China

Author:
Hongjie Gao; Chunjian Lv; Yonghui Song; Yu Zhang; Lijie Zheng; Yujie Wen; Jianfeng Peng; Huibin Yu
Source:
Environmental earth sciences 2015 v.73 no.9 pp. 5119-5129
ISSN:
1866-6280
Subject:
ammonium nitrogen; biochemical oxygen demand; chemical oxygen demand; chemometrics; chlorophyll; cluster analysis; monitoring; nonpoint source pollution; principal component analysis; rivers; seasonal variation; sewage; wastewater; water pollution; water quality; watersheds; China
Abstract:
... Pu River is a typical tributary of Liao River basin; in order to investigate water quality variations at different times and spaces in Pu River, the multivariate statistical method was used to analyze 12 water quality indicators measured at 18 different sites in the period from 2012 to 2013. The research assessed water pollution state and factors, identified pollution sources, and proposed some pr ...
DOI:
10.1007/s12665-015-4233-x

13. Combination of Fenton oxidation and sequencing batch membrane bioreactor for treatment of dry-spun acrylic fiber wastewater

Author:
Jian Wei; Yonghui Song; Xiaoguang Meng; Jean-Stéphane Pic
Source:
Environmental earth sciences 2015 v.73 no.9 pp. 4911-4921
ISSN:
1866-6280
Subject:
ammonium nitrogen; bacteria; biological treatment; bioreactors; chemical oxygen demand; factories; manufacturing; oxidation; pH; polymerization; toxicity; wastewater; wastewater treatment; China
Abstract:
... Dry-spun acrylic fiber (DAF) is typically synthesized by the polymerization of acrylonitrile (AN) monomers under high-temperature conditions. DAF manufacturing factories produce DAF polymerization and AN manufacturing wastewaters that are complex, toxic and bio-refractory. In this study, a bench-scale combined Fenton-sequencing batch membrane bioreactor (SBMBR) process was developed for DAF wastew ...
DOI:
10.1007/s12665-015-4091-6

14. Comparative evaluations of organic matters and nitrogen removal capacities of integrated vertical-flow constructed wetlands: Domestic and nitrified wastewater treatment

Author:
Jun J. Chang; Kang Liang; Su Q. Wu; Sheng H. Zhang; Wei Liang
Source:
Journal of environmental science and health 2015 v.50 no.7 pp. 757-766
ISSN:
1532-4117
Subject:
anaerobic conditions; chemical oxygen demand; constructed wetlands; dissolved oxygen; environmental health; municipal wastewater; nitrification; nitrogen; nitrogen content; organic matter; temperature; wastewater treatment; China
Abstract:
... Two groups of integrated vertical-flow constructed wetland (IVCW) microcosms were established for treating two types of representative wastewater: domestic and nitrified wastewater under two loading rates (LRs) over about two years. Their removal capacities of organic substance and nitrogen as well as the effects of loading rate (LR), outflow temperature and dissolved oxygen (DO) concentration wer ...
DOI:
10.1080/10934529.2015.1012009

15. Detecting gradual and abrupt changes in water quality time series in response to regional payment programs for watershed services in an agricultural area

Author:
Tian He; Yan Lu; Yanping Cui; Yabo Luo; Min Wang; Wei Meng; Kaijie Zhang; Feifei Zhao
Source:
Journal of hydrology 2015 v.525 pp. 457-471
ISSN:
0022-1694
Subject:
ammonium nitrogen; chemical oxygen demand; data collection; monitoring; pollutants; rivers; subwatersheds; time series analysis; water management; water quality; water quality analysis; China
Abstract:
... Market-based watershed protection instruments can effectively improve water quality at various catchment scales. Two payments for watershed services (PWS) programs for water quality improvement have been successively implemented in the Huai River catchment and its sub-watershed, the Shaying River catchment, in Henan Province since 2009. To detect changes in water quality in response to PWS schemes ...
DOI:
10.1016/j.jhydrol.2015.04.005

16. Dynamics of chromophoric dissolved organic matter influenced by hydrological conditions in a large, shallow, and eutrophic lake in China

Author:
Yongqiang Zhou; Yunlin Zhang; Kun Shi; Xiaohan Liu; Cheng Niu
Source:
Environmental science and pollution research international 2015 v.22 no.17 pp. 12992-13003
ISSN:
0944-1344
Subject:
absorption; carbon; chemical oxygen demand; dissolved organic matter; dry season; eutrophication; factor analysis; fluorescence; fluorescence emission spectroscopy; lakes; rain; rivers; runoff; seasonal variation; stable isotopes; t-test; watersheds; wet season; China
Abstract:
... High concentrations of chromophoric dissolved organic matter (CDOM) are terrestrially derived from upstream tributaries to Lake Taihu, China, and are influenced by hydrological conditions of the upstream watershed. To investigate how the dynamics of CDOM in Lake Taihu are influenced by upstream inflow runoff, four sampling cruises, differing in hydrological conditions, were undertaken in the lake ...
DOI:
10.1007/s11356-015-4556-x

17. Eco-Efficiency Trends and Decoupling Analysis of Environmental Pressures in Tianjin, China

Author:
Zhe Wang; Lin Zhao; Guozhu Mao; Ben Wu
Source:
Sustainability 2015 v.7 no.11 pp. 15407-15422
ISSN:
2071-1050
Subject:
chemical oxygen demand; eco-efficiency; emissions; issues and policy; pollutants; sulfur dioxide; sustainable development; China
Abstract:
... This study analyzes Tianjin’s eco-efficiency trends during the period 2001–2013 and reasons for their changes, with the aim of contributing to efforts to ensure the city’s sustainable development. While eco-efficiency of all of the indicators that we analyzed showed improvements during the study period, a gap remained in comparison to the more advanced eco-efficiency observed both domestically and ...
DOI:
10.3390/su71115407

18. Ecological engineering restoration of a non-point source polluted river in Northern China

Author:
Yanjie Mi; Chunguang He; Hongfeng Bian; Yanpeng Cai; Lianxi Sheng; Liang Ma
Source:
Ecological engineering 2015 v.76 pp. 142-150
ISSN:
0925-8574
Subject:
algae; ammonium nitrogen; anthropogenic activities; biodiversity; chemical oxygen demand; ecological restoration; economic development; ecosystem engineering; ecosystems; engineering; fish ponds; monitoring; nonpoint source pollution; plankton; rivers; vegetation; water quality; China
Abstract:
... River restoration is the re-establishment of a river to a state that is more reflective of its predisturbance form. To restore a river polluted by human interference, we conducted an ecological restoration study from 2009 to 2011 on parts of the Yitong River, which is a typical non-point source polluted river in Northern China. The engineering included three parts: riparian vegetation buffering st ...
DOI:
10.1016/j.ecoleng.2014.05.004

19. Ecological status classification of the Taizi River Basin, China: a comparison of integrated risk assessment approaches

Author:
Juntao Fan; Elena Semenzin; Wei Meng; Elisa Giubilato; Yuan Zhang; Andrea Critto; Alex Zabeo; Yun Zhou; Sen Ding; Jun Wan; Mengchang He; Chunye Lin
Source:
Environmental science and pollution research international 2015 v.22 no.19 pp. 14738-14754
ISSN:
0944-1344
Subject:
chemistry; watersheds; European Union; fish; biochemical oxygen demand; decision making; risk; industry; data collection; metals; ecosystems; risk assessment process; ecotoxicology; monitoring; pollutants; chemical oxygen demand; water quantity; decision support systems; rivers; polycyclic aromatic hydrocarbons; surveys; macroinvertebrates; China
Abstract:
... Integrated risk assessment approaches allow to achieve a sound evaluation of ecological status of river basins and to gain knowledge about the likely causes of impairment, useful for informing and supporting the decision-making process. In this paper, the integrated risk assessment (IRA) methodology developed in the EU MODELKEY project (and implemented in the MODELKEY Decision Support System) is a ...
DOI:
10.1007/s11356-015-4629-x

20. Effect of the mixing ratio during co-treatment of landfill leachate and sewage with a combined stripping and reversed A2/O process

Author:
Xiao-lan Zeng; Wen-chuan Ding; Zhi Zhang; Peng Wan; Yang Deng; Shuangshuang Wang
Source:
Environmental technology 2015 v.36 no.20 pp. 2668-2673
ISSN:
1479-487X
Subject:
ammonia; ammonium nitrogen; chemical oxygen demand; environmental technology; landfill leachates; mixing; phosphorus; pollutants; pretreatment; sewage; surface water; wastewater treatment; water reuse; China
Abstract:
... In this study, pilot-scale tests were conducted to evaluate the effect of volumetric mixing ratio of landfill leachate to sewage on the performance of the combined ammonia stripping and reversed anaerobic/anoxic/oxic (A ²/O) process for co-treatment of landfill leachate and municipal sewage. Stripping, as pre-treatment, could significantly remove ammonia nitrogen (NH ₃-N) and total nitrogen (TN) b ...
DOI:
10.1080/09593330.2015.1043311

21. Effects of water transfer on water quality and estimation of the pollutant fluxes from different sources into West Lake, Hangzhou City, China

Author:
Zanfang Jin; Lingxiao Chen; Feili Li; Zhiyan Pan; Mantong Jin
Source:
Environmental earth sciences 2015 v.73 no.3 pp. 1091-1101
ISSN:
1866-6280
Subject:
ammonium nitrogen; biochemical oxygen demand; chemical oxygen demand; chemical precipitation; denitrification; lakes; nitrate nitrogen; nitrogen; phosphorus; pollutants; rain; rivers; runoff; water quality; China
Abstract:
... Water transfer from the Qiantang River to the West Lake, Hangzhou City, China, has been performed since 1985 to improve the lake water quality. This study was conducted to assess the water quality and estimate the pollutant fluxes from different sources into the lake to enable better water quality management. Monthly variations in water quality variables, namely chemical oxygen demand (COD), 5-day ...
DOI:
10.1007/s12665-014-3456-6

22. Effluent characteristics of advanced treatment for biotreated coking wastewater by electrochemical technology using BDD anodes

Author:
Chunrong Wang; Mengru Zhang; Wei Liu; Min Ye; Fujin Su
Source:
Environmental science and pollution research international 2015 v.22 no.9 pp. 6827-6834
ISSN:
0944-1344
Subject:
biochemical oxygen demand; biodegradation; carbon; chemical oxygen demand; denitrification; drainage; electrochemistry; electrodes; electrolysis; energy; evolution; fluorescence; oxygen; pollutants; toxicity; wastewater; China
Abstract:
... Effluent of biotreated coking wastewater comprises hundreds of organic and inorganic pollutants and has the characteristics of high toxicity and difficult biodegradation; thus, its chemical oxygen demand cannot meet drainage standards in China. A boron-doped diamond anode was selected for advanced treatment of biotreated coking wastewater, and considering the efficiency of the removal of total org ...
DOI:
10.1007/s11356-014-3891-7

23. Evaluation of the potential for operating carbon neutral WWTPs in China

Author:
Xiaodi Hao; Ranbin Liu; Xin Huang
Source:
Water research 2015 v.87 pp. 424-431
ISSN:
0043-1354
Subject:
anaerobic digestion; buildings; carbon; chemical oxygen demand; electricity; energy balance; heat pumps; models; sludge; solar collectors; tanks; wastewater; wastewater treatment; water pollution; China
Abstract:
... Carbon neutrality is starting to become a hot topic for wastewater treatment plants (WWTPs) all over the world, and carbon neutral operations have emerged in some WWTPs. Although China is still struggling to control its water pollution, carbon neutrality will definitely become a top priority for WWTPs in the near future. In this review, the potential for operating carbon neutral WWTPs in China is ...
DOI:
10.1016/j.watres.2015.05.050

24. Field monitoring of a LID-BMP treatment train system in China

Author:
Haifeng Jia; Xiangwen Wang; Chaopu Ti; Yanyun Zhai; Richard Field; Anthony N. Tafuri; Huihua Cai; Shaw L. Yu
Source:
Environmental monitoring and assessment 2015 v.187 no.6 pp. 373
ISSN:
0167-6369
Subject:
ammonium nitrogen; best management practices; bioretention areas; chemical oxygen demand; constructed wetlands; copper; courts; field experimentation; monitoring; phosphorus; pollutants; spring; stormwater; total suspended solids; urban runoff; water quality; zinc; China
Abstract:
... In order to assess the urban runoff control effectiveness of a low-impact development best management practice (LID-BMP) treatment train system, a field test of selected LID-BMPs was conducted in China. The LID-BMPs selected include three grassed swales, a buffer strip, a bioretention cell, two infiltration pits, and a constructed wetland. The test site is in a campus in southern China. The LID-BM ...
DOI:
10.1007/s10661-015-4595-2

25. Functions of slags and gravels as substrates in large-scale demonstration constructed wetland systems for polluted river water treatment

Author:
Yuan Ge; Xiaochang Wang; Yucong Zheng; Mawuli Dzakpasu; Yaqian Zhao; Jiaqing Xiong
Source:
Environmental science and pollution research international 2015 v.22 no.17 pp. 12982-12991
ISSN:
0944-1344
Subject:
Phragmites australis; adsorption; biochemical oxygen demand; biomass production; calcium phosphates; chemical oxygen demand; climate; constructed wetlands; gravel; monitoring; nitrogen; nitrogen content; phosphorus; pollutants; remediation; river water; rivers; slags; subsurface flow; surface area; water treatment; China
Abstract:
... The choice of substrates with high adsorption capacity, yet readily available and economical is vital for sustainable pollutants removal in constructed wetlands (CWs). Two identical large-scale demonstration horizontal subsurface flow (HSSF) CWs (surface area, 340 m²; depth, 0.6 m; HLR, 0.2 m/day) with gravel or slag substrates were evaluated for their potential use in remediating polluted urban r ...
DOI:
10.1007/s11356-015-4573-9

26. Genetic Algorithm-Based Fuzzy Comprehensive Evaluation of Water Quality in Dongzhaigang

Author:
Jiasheng Wen; Feng Li; Xiangyun Zeng; Kaixuan Shen; Haijun He; Yanyan Liang; Huayang Gan; Jinwei Zhang; Xiaolin Long; Yansha Wei
Source:
Water 2015 v.7 no.9 pp. 4821-4847
ISSN:
2073-4441
Subject:
ammonium nitrogen; arsenic; biochemical oxygen demand; cadmium; chemical oxygen demand; chromium; conservation areas; copper; dissolved inorganic nitrogen; dissolved oxygen; eutrophication; heavy metals; lead; mercury; nitrate nitrogen; nitrite nitrogen; nutrients; oils; oxygen; pollutants; seawater; silicon; water quality; zinc; China
Abstract:
... The concentrations of dissolved inorganic nitrogen (DIN; NO₂⁻–N, NH₃–N, and NO₃⁻–N), PO₄³⁻–P, dissolved oxygen (DO), chemical oxygen demand (COD), five-day biological oxygen demand (BOD₅), oil, Si, and seven heavy metals (Hg, Cr, Cu, As, Zn, Pb, and Cd) in seawater from the Dongzhaigang National Mangrove Nature Reserve of China in 2013 were determined. Except for the concentrations of the COD, BOD ...
DOI:
10.3390/w7094821

27. Identification of key factors affecting the water pollutant concentration in the sluice-controlled river reaches of the Shaying River in China via statistical analysis methods

Author:
Ming Dou; Yan Zhang; Qiting Zuo; Qingbin Mi
Source:
Environmental science 2015 v.17 no.8 pp. 1492-1502
ISSN:
2050-7895
Subject:
ammonium nitrogen; case studies; chemical oxygen demand; dissolved oxygen; environmental factors; factor analysis; gates; mechanism of action; monitoring; pollutants; pollution control; principal component analysis; regression analysis; rivers; turbidity; water pollution; water quality; China
Abstract:
... The construction of sluices creates a strong disturbance in water environmental factors within a river. The change in water pollutant concentrations of sluice-controlled river reaches (SCRRs) is more complex than that of natural river segments. To determine the key factors affecting water pollutant concentration changes in SCRRs, river reaches near the Huaidian Sluice in the Shaying River of China ...
DOI:
10.1039/c5em00130g

28. Inhibitory effect of high NH4+–N concentration on anaerobic biotreatment of fresh leachate from a municipal solid waste incineration plant

Author:
Zhao Liu; Yan Dang; Caihua Li; Dezhi Sun
Source:
Waste management 2015 v.43 pp. 188-195
ISSN:
0956-053X
Subject:
bioactive properties; chemical oxygen demand; high-throughput nucleotide sequencing; methane; methane production; microbial communities; microorganisms; municipal solid waste; sludge; volatile fatty acids; waste incineration; China
Abstract:
... Fresh leachate from municipal solid waste (MSW) incineration plants generally contains extremely high NH4+–N concentration which could inhibit the bioactivity of microorganisms. The inhibitory effect of high NH4+–N concentration on anaerobic biotreatment of fresh leachate from a MSW incineration plant in China has been investigated in this study. The inhibition processes was studied by both static ...
DOI:
10.1016/j.wasman.2015.06.031

29. Insights into community-based discrimination of water quality status using an annual pool of phytoplankton in mid-subtropical canal systems

Author:
Xinlu Shi; Zhiqiang Sun; Guijie Liu; Henglong Xu
Source:
Environmental science and pollution research international 2015 v.22 no.2 pp. 1199-1206
ISSN:
0944-1344
Subject:
Leptocylindrus; Oscillatoria tenuis; Radiococcus; anthropogenic activities; aquatic ecosystems; biochemical oxygen demand; biological assessment; chemical oxygen demand; community structure; dissolved oxygen; environmental factors; nitrogen content; nutrients; phosphorus; phytoplankton; rivers; species diversity; water pollution; water quality; water temperature; China
Abstract:
... With rapid response to environmental changes, phytoplankton communities have been used as a favorable bioindicator to evaluate environmental stress and anthropogenic impacts in aquatic ecosystems. The feasibility for their community-based bioassessment was studied in a mid-subtropical canal (Tiesha River), southern China, during a 1-year cycle (November 2009–December 2010). Samples were monthly co ...
DOI:
10.1007/s11356-014-3391-9

30. Measuring ecological total-factor energy efficiency incorporating regional heterogeneities in China

Author:
Ning Zhang; Fanbin Kong; Yanni Yu
Source:
Ecological indicators 2015 v.51 pp. 165-172
ISSN:
1470-160X
Subject:
carbon dioxide; chemical oxygen demand; emissions; energy efficiency; environmental technology; issues and policy; models; sulfur dioxide; China
Abstract:
... This paper proposes a metafrontier slack-based efficiency measure (MSBM) approach to model ecological total-factor energy efficiency. This new advanced approach incorporates group heterogeneities of regions, total slacks, and undesirable outputs simultaneously into energy efficiency analysis. We incorporate global environmental technology into the proposed model so as to improve its discriminating ...
DOI:
10.1016/j.ecolind.2014.07.041

31. Metafrontier Environmental Efficiency for China’s Regions: A Slack-Based Efficiency Measure

Author:
Guoping Mei; Jingyi Gan; Ning Zhang
Source:
Sustainability 2015 v.7 no.4 pp. 4004-4021
ISSN:
2071-1050
Subject:
chemical oxygen demand; emissions; empirical research; issues and policy; pollutants; production technology; sulfur dioxide; China
Abstract:
... A metafrontier slack-based efficiency measure is presented to measure environmental efficiency for various regions in China. The objective of the new approach is to investigate the change of environmental efficiency while incorporating group heterogeneities and all variable slack and environmental pollutants into environmental efficiency analysis. Global production technology is used to improve th ...
DOI:
10.3390/su7044004

32. Multivariate statistical analysis of temporal–spatial variations in water quality of a constructed wetland purification system in a typical park in Beijing, China

Author:
Dongqing Li; Di Huang; Chaofan Guo; Xiaoyu Guo
Source:
Environmental monitoring and assessment 2015 v.187 no.1 pp. 4219
ISSN:
0167-6369
Subject:
Cyanobacteria; autumn; chemical oxygen demand; constructed wetlands; discriminant analysis; dissolved oxygen; eutrophication; factor analysis; lakes; landscapes; multivariate analysis; nitrate nitrogen; organic salts; oxidation; pH; pollutants; principal component analysis; redox potential; spring; summer; temporal variation; water flow; water pollution; water quality; China
Abstract:
... Using discriminant analysis (DA) and principal component analysis/factor analysis (PCA/FA), we described the variations in the water quality of a constructed wetland (CW) purification system in Olympic Park supplied with reclaimed water (RW). The analyses were conducted across three seasons (spring, summer, and autumn) and four functional zones (composite vertical flow constructed wetland [CVW], p ...
DOI:
10.1007/s10661-014-4219-2

33. Nitrogen removal processes in deep subsurface wastewater infiltration systems

Author:
Lie-Yu Zhang; Yu-Bing Ye; Li-Jun Wang; Bei-Dou Xi; Hong-Qiang Wang; Ye Li
Source:
Ecological engineering 2015 v.77 pp. 275-283
ISSN:
0925-8574
Subject:
ammonium nitrogen; carbon; chemical oxygen demand; denitrification; fluorescence emission spectroscopy; glass; nitrification; nitrites; nitrogen; phylogeny; purification methods; sewage; soil; wastewater; China
Abstract:
... To determine nitrogen removal methods and the factors that limit denitrifying reactions during the sewage purification processes in deep subsurface wastewater infiltration systems, an organic glass column with a radius of 0.30m and a height of 2.00m was loaded with layers of soil from the Shunyi district of Beijing. Good performance was achieved under a hydraulic loading of 8cm/d. In addition, TP ...
DOI:
10.1016/j.ecoleng.2015.01.008

34. Potential impacts of climate change on water quality in a shallow reservoir in China

Author:
Chen Zhang; Shiyu Lai; Xueping Gao; Liping Xu
Source:
Environmental science and pollution research international 2015 v.22 no.19 pp. 14971-14982
ISSN:
0944-1344
Subject:
ammonium nitrogen; biochemical oxygen demand; chemical oxygen demand; climate; climate change; cold; developing countries; dissolved oxygen; land use change; monitoring; nitrate nitrogen; nitrite nitrogen; nitrogen; phosphorus; rain; regression analysis; seasonal variation; spring; water quality; water temperature; wind speed; China
Abstract:
... To study the potential effects of climate change on water quality in a shallow reservoir in China, the field data analysis method is applied to data collected over a given monitoring period. Nine water quality parameters (water temperature, ammonia nitrogen, nitrate nitrogen, nitrite nitrogen, total nitrogen, total phosphorus, chemical oxygen demand, biochemical oxygen demand and dissolved oxygen) ...
DOI:
10.1007/s11356-015-4706-1

35. Quantitative relations between chemical oxygen demand concentration and its influence factors in the sluice-controlled river reaches of Shaying River, China

Author:
Ming Dou; Guiqiu Li; Congying Li
Source:
Environmental monitoring and assessment 2015 v.187 no.1 pp. 4139
ISSN:
0167-6369
Subject:
case studies; chemical oxygen demand; environmental factors; hydrodynamics; models; monitoring; rivers; sediments; water flow; water quality; China
Abstract:
... Recent research on the effects of dam and sluice construction on the water environment has attracted extensive attention from academia and governments alike. Because the operation of sluices greatly alters environmental factors such as water flow and sediment load, the water quality in sluice-controlled river reaches (SCRRs) undergoes complex changes compared with those in normal reaches. This wor ...
DOI:
10.1007/s10661-014-4139-1
PubMed:
25410948

36. Remediation effect of pond–ditch circulation on rural wastewater in southern China

Author:
Lin Ma; Feng He; Jian Sun; Long Wang; Dong Xu; Zhenbin Wu
Source:
Ecological engineering 2015 v.77 pp. 363-372
ISSN:
0925-8574
Subject:
ammonium nitrogen; chemical oxygen demand; chlorophyll; community structure; environmental factors; macrophytes; phosphorus; ponds; remediation; rural areas; socioeconomics; turbidity; urbanization; wastewater; wastewater treatment; water pollution; water quality; zooplankton; China
Abstract:
... To mitigate water pollution caused by rapid urbanization in the rural areas of China, it is urgent to develop suitable wastewater treatment technologies, which are socio-economic, environmentally sustainable and easily maintained. This study investigates the remediation effect of a pond–ditch circulation system on water quality. This system is composed of connected ponds and ditches in rural areas ...
DOI:
10.1016/j.ecoleng.2014.11.036

37. Runoff characteristics and non-point source pollution analysis in the Taihu Lake Basin: a case study of the town of Xueyan, China

Author:
Q. D. Zhu; J. H. Sun; G. F. Hua; J. H. Wang; H. Wang
Source:
Environmental science and pollution research international 2015 v.22 no.19 pp. 15029-15036
ISSN:
0944-1344
Subject:
AGNPS model; ammonium nitrogen; case studies; chemical oxygen demand; correlation; factories; lakes; land use; nitrate nitrogen; nitrogen; nonpoint source pollution; phosphorus; pollutants; rain; rain intensity; residential areas; river water; runoff; watersheds; China
Abstract:
... Non-point source pollution is a significant environmental issue in small watersheds in China. To study the effects of rainfall on pollutants transported by runoff, rainfall was monitored in Xueyan town in the Taihu Lake Basin (TLB) for over 12 consecutive months. The concentrations of different forms of nitrogen (N) and phosphorus (P), and chemical oxygen demand, were monitored in runoff and river ...
DOI:
10.1007/s11356-015-4709-y

38. Study of Reciprocal Effects between Mandatory Pollutant Emissions Reduction Policy and Structural Change within the Manufacturing Sector in a Chinese Coastal Area

Author:
Guo Yang; Guo Xianglin; Tian Jinping; Chen Lujun
Source:
Environmental Science & Technology 2015 v.49 no.21 pp. 12840-12850
ISSN:
1520-5851
Subject:
ammonium nitrogen; chemical oxygen demand; coasts; emissions; emissions factor; industrialization; issues and policy; manufacturing; models; multi-criteria decision making; pollutants; sulfur dioxide; China
Abstract:
... We develop a multicriteria decision-making model coupled with scenario analysis to quantitatively elucidate the reciprocal effect between a mandatory pollutant emissions reduction policy and industrial structure change within the manufacturing sector on the basis of an in-depth study of a well-developed coastal area in East China, Ningbo City, toward 2020. First, 18 two-digit level industries (TDL ...
DOI:
10.1021/acs.est.5b02504

39. System evaluation and microbial analysis of a sulfur cycle-based wastewater treatment process for Co-treatment of simple wet flue gas desulfurization wastes with freshwater sewage

Author:
Jin Qian; Rulong Liu; Li Wei; Hui Lu; Guang-Hao Chen
Source:
Water research 2015 v.80 pp. 189-199
ISSN:
0043-1354
Subject:
bacteria; bacterial communities; biological treatment; chemical oxygen demand; denitrification; energy; flue gas desulfurization; freshwater; methane; nitrates; nitrification; nitrites; nitrogen; pH; seawater; sewage; sludge; sulfates; sulfides; sulfur; thiosulfates; wastewater treatment; China
Abstract:
... A sulfur cycle-based wastewater treatment process, namely the Sulfate reduction, Autotrophic denitrification and Nitrification Integrated process (SANI® process) has been recently developed for organics and nitrogen removal with 90% sludge minimization and 35% energy reduction in the biological treatment of saline sewage from seawater toilet flushing practice in Hong Kong. In this study, sulfate- ...
DOI:
10.1016/j.watres.2015.05.005

40. Temporal and spatial distribution changing characteristics of exogenous pollution load into Dianchi Lake, Southwest of China

Author:
Guangwen Ma; Shengrui Wang
Source:
Environmental earth sciences 2015 v.74 no.5 pp. 3781-3793
ISSN:
1866-6280
Subject:
basins; chemical oxygen demand; eutrophication; lakes; nitrogen content; phosphorus; pollutants; researchers; simulation models; watersheds; zoning; China
Abstract:
... Based on the analysis of point source (PS) and non-point source (NPS) pollution emission characteristics of Dianchi Lake Basin, pollution load into the lake simulation models was constructed; the result should be useful for eutrophication researchers. The PS and NPS pollution load calculation results were added come exogenous pollution load into Dianchi Lake. Exogenous pollution load into Dianchi ...
DOI:
10.1007/s12665-015-4721-z

41. The capacity of greening roof to reduce stormwater runoff and pollution

Author:
Qianqian Zhang; Liping Miao; Xiaoke Wang; Dandan Liu; Liang Zhu; Bing Zhou; Jichao Sun; Jingtao Liu
Source:
Landscape and urban planning 2015 v.144 pp. 142-150
ISSN:
0169-2046
Subject:
neutralization; bitumen; fluorides; stormwater; calcium; sulfates; water quality; chlorides; green roofs; pollutants; soil; wet deposition; rain; pH; potassium; chemical oxygen demand; ammonium nitrogen; China
Abstract:
... To examine the stormwater retention capacity and runoff water quality of a green roof in Chongqing, China, 19 rainfall event samples of runoff and dry and wet deposition were measured. The results showed that the green roof effectively retained stormwater runoff, with retention ranging from 35.5% to 100%, with an average retention of 77.2%. The annual runoff retention of the green roof showed that ...
DOI:
10.1016/j.landurbplan.2015.08.017

42. The core populations and co-occurrence patterns of prokaryotic communities in household biogas digesters

Author:
Junpeng Rui; Jiabao Li; Shiheng Zhang; Xuefeng Yan; Yuanpeng Wang; Xiangzhen Li
Source:
Biotechnology for biofuels 2015 v.8 no.1 pp. 158
ISSN:
1754-6834
Subject:
Spirochaetes; Syntrophomonas; ribosomal RNA; biogas; genes; rural areas; ammonium nitrogen; Bacteroidales; fermentation; phosphates; Actinobacteria; harvesting; sequence analysis; energy; developing countries; chemical oxygen demand; methanogens; methane production; Clostridium; Chloroflexi; environmental factors; pH; anaerobic digestion; Synergistetes; China
Abstract:
... BACKGROUND: Household biogas digesters are widely used to harvest energy in rural areas of developing countries. Understanding core prokaryotic communities, their co-occurrence patterns, and their relationships to environmental factors is important to manage these small-scale anaerobic digestion systems effectively. In this study, 43 household biogas digesters were collected across eight provinces ...
DOI:
10.1186/s13068-015-0339-3
PubMed:
26413157
PubMed Central:
PMC4582640

43. The feasibility of using combined TiO2 photocatalysis oxidation and MBBR process for advanced treatment of biologically pretreated coal gasification wastewater

Author:
Peng Xu; Hongjun Han; Baolin Hou; Haifeng Zhuang; Shengyong Jia; Dexin Wang; Kun Li; Qian Zhao
Source:
Bioresource technology 2015 v.189 pp. 417-420
ISSN:
0960-8524
Subject:
biofilm; chemical oxygen demand; coal; engineering; gas chromatography-mass spectrometry; gasification; operating costs; oxidation; photocatalysis; titanium dioxide; toxic substances; wastewater; China
Abstract:
... The study examined the feasibility of using combined heterogeneous photocatalysis oxidation (HPO) and moving bed biofilm reactor (MBBR) process for advanced treatment of biologically pretreated coal gasification wastewater (CGW). The results indicated that the TOC removal efficiency was significantly improved in HPO. Gas chromatography–mass spectrometry (GC–MS) analysis indicated that the HPO coul ...
DOI:
10.1016/j.biortech.2015.04.051

44. The relationships between industrial pollution intensity and economic growth based on intensity environment Kuznets curve: study on China’s pilot cities

Author:
Qilu Tan; Zongguo Wen; Jining Chen
Source:
international journal of sustainable development and world ecology 2015 v.22 no.3 pp. 231-241
ISSN:
1745-2627
Subject:
chemical oxygen demand; cities; ecology; emissions; governance; models; politics; pollutants; solid wastes; soot; sulfur dioxide; sustainable development; wastewater; China
Abstract:
... In order to enrich the study of Environmental Kuznets Curve (EKC) on pollution intensity, we analyze the relationship between industrial pollution intensity (pollution per GDP) and economic growth (GDP per capita) using data 1993–2012 from 46 Chinese pilot cities. Our study tracks seven types of industrial pollution intensity: wastewater, COD, waste gas, SO ₂, soot, dust, and solid waste emissions ...
DOI:
10.1080/13504509.2014.994233

45. Tower bio-vermifilter system for rural wastewater treatment: bench-scale, pilot-scale, and engineering applications

Author:
E. Nie; D. Wang; M. Yang; X. Luo; C. Fang; X. Yang; D. Su; L. Zhou; Z. Zheng
Source:
International journal of environmental science and technology 2015 v.12 no.3 pp. 1053-1064
ISSN:
1735-1472
Subject:
ammonium nitrogen; basins; biofilters; bioreactors; carbon; chemical oxygen demand; earthworms; economic costs; gravel; nitrogen; phosphorus; pollutants; sewage treatment; soil; wastewater treatment; China
Abstract:
... This paper presents a systematic study of a novel tower bio-vermifilter system for rural wastewater treatment at three scales: bench-scale, pilot-scale, and engineering applications. First, three types of bioreactors were tested in the bench-scale experiments: earthworm bioreactor, soil filter, and one-stage bio-vermifilter. Experiments with the earthworm bioreactor and soil filter determined the ...
DOI:
10.1007/s13762-013-0479-6

46. Treatment of pharmaceutical wastewater for reuse by coupled membrane-aerated biofilm reactor (MABR) system

Author:
Hailong Tian; Huimin Zhang; Peng Li; Linquan Sun; Feifei Hou; Baoan Li
Source:
RSC advances 2015 v.5 no.85 pp. 69829-69838
ISSN:
2046-2069
Subject:
aeration; biochemical oxygen demand; biofilm; chemical oxygen demand; chlorides; coagulation; flocculation; magnetism; oxidation; ozone; polyacrylamide; total nitrogen; wastewater; wastewater treatment; China
Abstract:
... The high-concentration pharmaceutical intermediate wastewater treatment was studied experimentally by using a coupled membrane-aerated biofilm reactor (MABR) system, which included ozone oxidation as pre-treatment, MABR biochemical method, and improved coagulation–flocculation technology as post-treatment. First, the influence of ozone production rate and reaction time on chemical oxygen demand (C ...
DOI:
10.1039/c5ra10091g

47. Treatment of turtle aquaculture effluent by an improved multi-soil-layer system

Author:
Ying Song; Yu-ting Huang; Hong-fang Ji; Xin-jun Nie; Zhi-yuan Zhang; Chuan Ge; An-cheng Luo; Xin Chen
Source:
Journal of Zhejiang University 2015 v.16 no.2 pp. 145-154
ISSN:
1673-1581
Subject:
ammonium nitrogen; aquaculture; chemical oxygen demand; denaturing gradient gel electrophoresis; microbial communities; nitrification; nitrifying bacteria; sludge; surface water; turtles; China
Abstract:
... Concentrated turtle aquaculture effluent poses an environmental threat to water bodies, and therefore needs to be treated prior to disposal. This study was conducted to assess the effect of multi-soil-layer (MSL) systems treating turtle aquaculture effluent with adding different amounts of sludge. Four MSL systems were constructed with dry weight ratios of sludge with 0%, 5%, 10%, and 20% (MSL 1, ...
DOI:
10.1631/jzus.B1400090
PubMed:
25644469
PubMed Central:
PMC4322425

48. Water use efficiency and related pollutants' abatement costs of regional industrial systems in China: a slacks-based measure approach

Author:
Yousen Wang; Yiwen Bian; Hao Xu
Source:
Journal of cleaner production 2015 v.101 pp. 301-310
ISSN:
0959-6526
Subject:
ammonium nitrogen; chemical oxygen demand; cleaning; models; pollutants; wastewater; water conservation; water shortages; water use efficiency; China
Abstract:
... Water saving and wastewater cleaning are two important ways to alleviate water shortage crisis in China. This paper aims to examine water use efficiency and abatement costs of two main pollutants in wastewater, i.e., chemical oxygen demand (COD) and ammonia nitrogen (NH4–N), of regional industrial systems in China. For this purpose, a slacks-based measure model based on the assumption of undesirab ...
DOI:
10.1016/j.jclepro.2015.03.092

49. Water-related ecosystem services provided by urban green space: A case study in Yixing City (China)

Author:
Liyun Yang; Linbo Zhang; Yuan Li; Songtao Wu
Source:
Landscape and urban planning 2015 v.136 pp. 40-51
ISSN:
0169-2046
Subject:
ammonium nitrogen; case studies; chemical oxygen demand; ecosystem services; environmental health; image interpretation; models; phosphorus; rain; remote sensing; soil conservation; urban areas; urbanization; China
Abstract:
... With the development of urbanization, green space in urban areas has received widespread attention and become an important symbol of urban ecosystem health. Urban green space plays a positive role in water regulation and purification, but this function is often ignored by municipal authorities. Based on remote-sensing image interpretation and practical investigations in Yixing (China), this study ...
DOI:
10.1016/j.landurbplan.2014.11.016

50. Zoning of rural water conservation in China: A case study at Ashihe River Basin

Author:
Xiaoying Liu; Sha Zhou; Shi Qi; Bo Yang; Yuehong Chen; Ruan Huang; Pengfei Du
Source:
International soil and water conservation research 2015 v.3 no.2 pp. 130-140
ISSN:
2095-6339
Subject:
ammonium nitrogen; biochemical oxygen demand; case studies; chemical oxygen demand; crop production; emissions factor; livestock; phosphorus; pollutants; pollution control; rivers; rural areas; socioeconomic development; soil; water conservation; water pollution; water quality; water use efficiency; watersheds; zoning; China
Abstract:
... With the effective control of point source (PS) pollution accomplished, water pollution problems caused by non-point source (NPS) pollution have increased in recent years. The worsening agricultural NPS pollution has drawn the attention of the Chinese Government and researcher scientists and has resulted in the often mentioned “three red lines” on water resources management. One of the red lines i ...
DOI:
10.1016/j.iswcr.2015.04.003