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1. Automatic control and optimal operation for greenhouse gas mitigation in sustainable wastewater treatment plants: A review

Author:
Hao Lu; Huazhe Wang; Qinglian Wu; Haichao Luo; Qi Zhao; Banghai Liu; Qishi Si; Shanshan Zheng; Wanqian Guo; Nanqi Ren
Source:
Science of the total environment 2023 v.855 pp. 158849
ISSN:
0048-9697
Subject:
nitrous oxide,   etc   ; automation; carbon dioxide; carbon footprint; environment; greenhouse gases; methane; pollution control; wastewater treatment;     Show all 9 Subjects
Abstract:
... In order to promote low-carbon sustainable operational management of the wastewater treatment plants (WWTPs), automatic control and optimal operation technologies, which devote to improving effluent quality, operational costs and greenhouse gas (GHG) emissions, have flourished in recent years. There is no consensus on the design procedure for optimal control/operation of sustainable WWTPs. In this ...
DOI:
10.1016/j.scitotenv.2022.158849

2. Impact of soluble organic matter and particulate organic matter on anammox system: Performance, microbial community and N2O production

Author:
Yingying He; Hongyu Mao; Jacek Makinia; Jakub Drewnowski; Bing Wu; Jun Xu; Li Xie; Xi Lu
Source:
Journal of environmental sciences (China) 2023 v.124 pp. 146-155
ISSN:
1001-0742
Subject:
nitrous oxide production,   etc   ; Thauera; anaerobic ammonium oxidation; biodegradability; carbon; denitrification; long term experiments; microbial communities; models; nitrogen; particulate organic matter; China;     Show all 12 Subjects
Abstract:
... In this study, the effects of soluble readily biodegradable COD (sCOD) and particulate slowly biodegradable COD (pCOD) on anammox process were investigated. The results of the long-term experiment indicated that a low sCOD/N ratio of 0.5 could accelerate the anammox and denitrification activity, to reach as high as 84.9%±2.8% TN removal efficiency. Partial denitrification-anammox (PDN/anammox) and ...
DOI:
10.1016/j.jes.2021.11.007

3. Can biochar application improve the net economic benefits of tea plantations?

Author:
Haiyan Lin; Shumin Guo; Zhaoqiang Han; Shuwei Liu; Jinyang Wang; Jianwen Zou
Source:
Science of the total environment 2023 v.856 pp. 159029
ISSN:
0048-9697
Subject:
nitrous oxide,   etc   ; ammonia; biochar; carbon; carbon markets; compound fertilizers; economic analysis; ecosystems; environment; global carbon budget; hunger; nitric oxide; nitrogen; poverty; runoff; soil; tea; volatilization;     Show all 18 Subjects
Abstract:
... Biochar applied to the soil can contribute to the sustainability of agriculture by promoting ecosystem services. Tea production contributes to addressing hunger and poverty in developing countries. However, little is known about the impact of biochar amendment on ecosystem services in tea plantations. We evaluated ecosystem services from an economic assessment perspective to better understand the ...
DOI:
10.1016/j.scitotenv.2022.159029

4. Sustainable water and nitrogen optimization to adapt to different temperature variations and rainfall patterns for a trade-off between winter wheat yield and N2O emissions

Author:
Chong Wang; Zhiming Qi; Jiongchao Zhao; Zhenzhen Gao; Jie Zhao; Fu Chen; Qingquan Chu
Source:
Science of the total environment 2023 v.854 pp. 158822
ISSN:
0048-9697
Subject:
nitrous oxide,   etc   ; climate change; environment; fertilizer rates; field experimentation; irrigation rates; models; nitrogen; nitrogen fertilizers; pollution; rain; soil temperature; soil water; wet season; winter wheat; China;     Show all 16 Subjects
Abstract:
... Optimizing irrigation and nitrogen (N) fertilizer applications is essential to ensure crop yields and lower environmental risks under climate change. The DeNitrification-DeComposition (DNDC) model was employed to investigate the impacts of irrigation regime (RF, rainfed; MI, minimum irrigation; CI, critical irrigation; FI, full irrigation) and N fertilizer rate (N60, N90, N120, N150, N180, N210, N ...
DOI:
10.1016/j.scitotenv.2022.158822

5. Analyzing the mechanism of nitrous oxide production in aerobic phase of anoxic/aerobic sequential batch reactor from the perspective of key enzymes

Author:
Rui Yang; Lin-jiang Yuan; Ru Wang; Zhi-xian He; Lin Lei; Yan-chen Ma
Source:
Environmental science and pollution research 2022 v.29 no.26 pp. 39877-39887
ISSN:
0944-1344
Subject:
nitrous oxide; nitrous oxide production; nitrous-oxide reductase,   etc   ; batch systems; denitrification; nitric oxide; nitrogen; pollution; research;     Show all 9 Subjects
Abstract:
... How the vast majority of nitrous oxide (N₂O) in the aerobic zone of nitrogen bio-removal process is produced is still a controversial issue. To solve this issue, this study measured the activities of two key denitrifying enzymes (nitric oxide reductase (Nor) and nitrous oxide reductase (N₂OR)) in an A/O SBR with different chemical nitrogen demand (COD)/total nitrogen (TN) ratios. By analyzing the ...
DOI:
10.1007/s11356-022-18800-3

6. Role of nitrite reductase in N2O production under aerobic conditions: An index for predicting the intensity of N2O production

Author:
Rui Yang; Lin-jiang Yuan; Ru Wang; Gang Wang; Miao Zhu
Source:
Biochemical engineering journal 2022 v.177 pp. 108242
ISSN:
1369-703X
Subject:
nitrous oxide; nitrous oxide production,   etc   ; aeration; denitrification; nitrite reductase; nitrites; nitrogen;     Show all 7 Subjects
Abstract:
... To verify the feasibility of using nitrite reductase (Nir) activity as an indicator for predicting nitrous oxide (N₂O) production under aerobic conditions, an A/O SBR under different aeration intensities was applied. Firstly, by analyzing Nir activities and chemical substances, the main source of N₂O was recognized. Secondly, the relationship between Nir activities and N₂O production was determine ...
DOI:
10.1016/j.bej.2021.108242

7. Banded urea placement did not affect nitrous oxide emission from furrow-irrigated Vertisols

Author:
G. D. Schwenke; A. McPherson
Source:
Nutrient cycling in agroecosystems 2022 v.122 no.1 pp. 1-12
ISSN:
1385-1314
Subject:
nitrous oxide; nitrous oxide production,   etc   ; Vertisols; agroecosystems; cotton; nitrogen fertilizers; summer; urea; Australia;     Show all 9 Subjects
Abstract:
... Episodic nitrous oxide (N₂O) emissions from Vertisols used for furrow-irrigated cotton production mainly occur in response to early season irrigation events. This study evaluated the impact of N fertiliser placement and timing strategies on N₂O emissions from Vertisols under cotton production in northeast Australia. We compared N₂O emissions in two experiments during the 2015–16 summer. Each exper ...
DOI:
10.1007/s10705-021-10177-y

8. Enzymatic regulation of N2O production by denitrifying bacteria in the sludge of biological nitrogen removal process

Author:
Rui Yang; Linjiang Yuan; Ru Wang
Source:
Science of the total environment 2022 v.846 pp. 157513
ISSN:
0048-9697
Subject:
nitrous oxide; nitrous oxide production; nitrous-oxide reductase,   etc   ; batch systems; carbon; catalytic activity; denitrification; environment; nitrate reductase; nitric oxide; nitrite reductase; nitrogen; sludge;     Show all 13 Subjects
Abstract:
... This study analyzed the activities of all denitrifying enzymes involved in the denitrification process under different organic loads in a continuously operating sequencing batch reactor (SBR), to reveal how the denitrifying enzymes performed while the denitrifying bacteria facing changes in organic load, and leading to nitrous oxide (N₂O) production by fine-tuning enzyme activities. Results show t ...
DOI:
10.1016/j.scitotenv.2022.157513

9. Increased soil-derived N2O production following a simulated fall-freeze–thaw cycle: effects of fall urea addition, soil moisture, and history of manure applications

Author:
Sisi Lin; Guillermo Hernandez-Ramirez
Source:
Biogeochemistry 2022 v.157 no.3 pp. 379-398
ISSN:
0168-2563
Subject:
nitrous oxide; nitrous oxide production,   etc   ; biogeochemistry; denitrification; freeze-thaw cycles; nitrogen; soil water; urea;     Show all 8 Subjects
Abstract:
... Adding nitrogen fertilizers to soils can induce short-term changes in soil N pools, and consequently cause extra release of nitrous oxide (N₂O) emissions that are sourced directly from soils rather than from added N – a response termed the ‘priming effect’. However, it is unknown how priming effects on nitrous oxide (N₂O) emissions can be altered following a strong freeze–thaw cycle. A mesocosm (p ...
DOI:
10.1007/s10533-021-00880-x

10. Chlorate as a comammox Nitrospira specific inhibitor reveals nitrification and N2O production activity in coastal wetland

Author:
Dongyao Sun; Xiufeng Tang; Jun Li; Min Liu; Lijun Hou; Guoyu Yin; Cheng Chen; Qiang Zhao; Uli Klümper; Ping Han
Source:
Soil biology & biochemistry 2022 v.173 pp. 108782
ISSN:
0038-0717
Subject:
nitrous oxide; nitrous oxide production,   etc   ; ammonia; biochemistry; chlorates; estuaries; isotopes; nitrification; nitrites; oxidation; wetlands;     Show all 11 Subjects
Abstract:
... Specific nitrification inhibitors (NIs) have been widely used to disentangle the contribution of ammonia-oxidizing archaea (AOA), ammonia-oxidizing bacteria (AOB) as well as nitrite oxidizers to the nitrification process in specific environments. However, if these previously reported NIs can also be used to evaluate the activity of the newly discovered complete ammonia oxidizers (comammox) Nitrosp ...
DOI:
10.1016/j.soilbio.2022.108782

11. Nitrous oxide emission mitigation from biological wastewater treatment – A review

Author:
Yu-Jen Lee; Bin-le Lin; Zhongfang Lei
Source:
Bioresource technology 2022 v.362 pp. 127747
ISSN:
0960-8524
Subject:
nitrous oxide; nitrous oxide production,   etc   ; economic feasibility; life cycle assessment; renewable energy sources; wastewater treatment;     Show all 6 Subjects
Abstract:
... Nitrous oxide (N₂O) emitted from wastewater treatment processes has emerged as a focal point for academic and practical research amidst pressing environmental issues. This review presents an updated view on the biological pathways for N₂O production and consumption in addition to the critical process factors affecting N₂O emission. The current research trends including the strain and reactor aspec ...
DOI:
10.1016/j.biortech.2022.127747

12. N2O emission dynamics along an intertidal elevation gradient in a subtropical estuary: Importance of N2O consumption

Author:
Dengzhou Gao; Lijun Hou; Min Liu; Yanling Zheng; Guoyu Yin; Yuhui Niu
Source:
Environmental research 2022 v.205 pp. 112432
ISSN:
0013-9351
Subject:
nitrous oxide; nitrous oxide production,   etc   ; altitude; carbon; denitrification; estuaries; fungi; hydroxylamine; isotopes; littoral zone; nitrogen; oxidation; research;     Show all 13 Subjects
Abstract:
... Studying nitrous oxide (N₂O) production and consumption processes along an intertidal elevation gradient can improve the understanding of N₂O dynamics among coastal wetlands. A natural-abundance isotope technique was applied to characterize the processes responsible for N₂O emission in high, middle and low intertidal zones in the Yangtze Estuary. The results showed that N₂O emission rates in high ...
DOI:
10.1016/j.envres.2021.112432

13. Spatial variability of denitrification enzyme activity and actual denitrification emissions on Missouri claypan soils

Author:
Johnson Frank E.; Lerch Robert N.; Motavalli Peter P.; Veum Kristen Sloan; Scharf Peter C.
Source:
Soil Science Society of America journal 2022 v. no. pp. -
ISSN:
0361-5995
Subject:
nitrous oxide; nitrous oxide production,   etc   ; clay fraction; denitrification; enzyme activity; highlands; landscape position; no-tillage; protocols; Missouri;     Show all 10 Subjects
Abstract:
... Denitrification in agricultural soils is responsible for the majority of anthropogenic nitrous oxide (N(2)O) production. The objective of this research was to assess denitrification potential and the spatial dependence of soil N(2)O flux from claypan soils in the Central Claypan Region of Missouri. Surface soil samples (0-10 cm) were collected on a 90-m grid from two claypan fields, one convention ...
Handle:
10113/7858428
DOI:
10.1002/saj2.20457

14. Revisiting sampling duration to estimate N2O emission factors for manure application and cattle excreta deposition for the UK and Ireland

Author:
Sebastian Vangeli; Laura M. Cardenas; Gabriela Posse; Dave R. Chadwick; Dominika J. Krol; Rachel E. Thorman; Gary J. Lanigan; Tom H. Misselbrook
Source:
Journal of environmental management 2022 v.322 pp. 116037
ISSN:
0301-4797
Subject:
nitrous oxide; nitrous oxide production,   etc   ; animal manures; cattle; databases; feces; manure spreading; nitrogen; slurries; spring; urine; Ireland;     Show all 12 Subjects
Abstract:
... According to the available guidelines, good practices for calculating nitrous oxide (N₂O) emission factors (EFs) for livestock excreta and manure application include that sampling duration should be of at least one year after the nitrogen (N) application or deposition. However, the available experimental data suggest that in many cases most emissions are concentrated in the first months following ...
DOI:
10.1016/j.jenvman.2022.116037

15. Short-term grazing rather than mowing stimulates N2O production potential through enhancing the bacterial pathway in semiarid grasslands

Author:
Yingjin Song; Jinlei Li; Lei Zhong; Jianming Xue; Gaoyuan Li; Jinwu Qing; Yichao Rui; Guanyi Chen; Taogetao Baying; Frank Yonghong Li
Source:
Journal of soils and sediments 2022 v.22 no.1 pp. 32-42
ISSN:
1439-0108
Subject:
nitrous oxide; nitrous oxide production,   etc   ; Archaea; denitrification; enzyme activity; enzymes; fungi; grasslands; nitrification; nitrogen cycle; soil; summer; China;     Show all 13 Subjects
Abstract:
... PURPOSE: The study aimed to explore how grazing and mowing influence the archaeal, bacterial, and fungal nitrous oxide (N₂O) production potential and identify the key soil factors driving N₂O emissions from soil. METHODS: Three treatments: fence (no grazing or mowing), grazing, and mowing were set in a field-scale experiment. Total (TNEA and TDEA), fungal (FNEA and FDEA), bacterial (BNEA and BDEA) ...
DOI:
10.1007/s11368-021-03051-5

16. Sulfide-driven nitrous oxide recovery during the mixotrophic denitrification process

Author:
Cong Yu; Sen Qiao; Jiti Zhou
Source:
Journal of environmental sciences (China) 2023 v.125 pp. 443-452
ISSN:
1001-0742
Subject:
nitrous oxide; nitrous-oxide reductase,   etc   ; circular dichroism spectroscopy; denitrification; electron transfer; fluorescence; organic carbon; sulfates; sulfides; voltammetry; China;     Show all 11 Subjects
Abstract:
... We propose a novel sulfide-driven process to recover N₂O during the traditional denitrification process. The optimum initial sulfide concentration was 120 mg/L, and the N₂O percentage in the gaseous products (N₂O+N₂) was up to 82.9%. Moreover, sulfide involved in denitrification processes could substitute for organic carbon as an electron donor, e.g., 1 g sulfide was equivalent to 0.5-2 g COD when ...
DOI:
10.1016/j.jes.2021.12.003

17. Accelerating the development of biological nitrification inhibition as a viable nitrous oxide mitigation strategy in grazed livestock systems

Author:
Cecile A. M. de Klein; Saman Bowatte; Priscila L. Simon; Jacobo Arango; Laura M. Cardenas; David R. Chadwick; Jeroen Pijlman; Robert M. Rees; Karl G. Richards; Guntur V. Subbarao; David Whitehead
Source:
Biology and fertility of soils 2022 v.58 no.3 pp. 235-240
ISSN:
0178-2762
Subject:
nitrous oxide,   etc   ; livestock; metabolomics; nitrification; soil;     Show all 5 Subjects
Abstract:
... This position paper summarizes the current understanding of biological nitrification inhibition (BNI) to identify research needs for accelerating the development of BNI as a N₂O mitigation strategy for grazed livestock systems. We propose that the initial research focus should be on the systematic screening of agronomically desirable plants for their BNI potency and N₂O reduction potential. This r ...
DOI:
10.1007/s00374-022-01631-2

18. Soil oxygen depletion and corresponding nitrous oxide production at hot moments in an agricultural soil

Author:
Xiaotong Song; Huanhuan Wei; Robert M. Rees; Xiaotang Ju
Source:
Environmental pollution 2022 v.292 pp. 118345
ISSN:
0269-7491
Subject:
nitrous oxide; nitrous oxide production,   etc   ; agricultural soils; arid lands; irrigation; oxygen; pollution; rain; risk reduction; soil water; temperature; China;     Show all 12 Subjects
Abstract:
... Hot moments of nitrous oxide (N₂O) emissions induced by interactions between weather and management make a major contribution to annual N₂O budgets in agricultural soils. The causes of N₂O production during hot moments are not well understood under field conditions, but emerging evidence suggests that short-term fluctuations in soil oxygen (O₂) concentration can be critically important. We conduct ...
DOI:
10.1016/j.envpol.2021.118345

19. Chronic effects of cerium dioxide nanoparticles on biological nitrogen removal and nitrous oxide emission: Insight into impact mechanism and performance recovery potential

Author:
Jinyu Ye; Huan Gao; Carlos Domingo-Félez; Junkang Wu; Manjun Zhan; Ran Yu; Barth F. Smets
Source:
Bioresource technology 2022 v.351 pp. 126966
ISSN:
0960-8524
Subject:
nitrous oxide; nitrous oxide production,   etc   ; activated sludge; ammonium nitrogen; ceric oxide; denitrifying microorganisms; nitrites; nitrogen; oxidoreductases; total nitrogen; wastewater treatment;     Show all 11 Subjects
Abstract:
... The influence of cerium dioxide nanoparticles (CeO₂ NPs) on biological nitrogen removal and associated nitrous oxide (N₂O) emission has seldom been addressed yet. Herein, the chronic effect of CeO₂ NPs on the nitrogen transformation processes during wastewater treatment and the impacted system's self-recovery potential after CeO₂ NP stress removal were investigated. CeO₂ NP of 10–50 mg/L induced s ...
DOI:
10.1016/j.biortech.2022.126966

20. Exploring the microbial influence on seasonal nitrous oxide concentration in a full-scale wastewater treatment plant using metagenome assembled genomes

Author:
Laura Christina Valk; Miriam Peces; Caitlin Margaret Singleton; Mads Dyring Laursen; Mikkel Holmen Andersen; Artur Tomasz Mielczarek; Per Halkjær Nielsen
Source:
Water research 2022 v.219 pp. 118563
ISSN:
0043-1354
Subject:
nitrous oxide; nitrous oxide production,   etc   ; Dechloromonas; community structure; genes; greenhouse gases; metagenomics; microbial communities; nitrites; nitrogen; research; wastewater treatment; water;     Show all 13 Subjects
Abstract:
... Nitrous oxide is a highly potent greenhouse gas and one of the main contributors to the greenhouse gas footprint of wastewater treatment plants (WWTP). Although nitrous oxide can be produced by abiotic reactions in these systems, biological N₂O production resulting from the imbalance of nitrous oxide production and reduction by microbial populations is the dominant cause. The microbial populations ...
DOI:
10.1016/j.watres.2022.118563