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1. Micromotors for “Chemistry-on-the-Fly”

Author:
Karshalev, Emil; Esteban-Fernández de Ávila, Berta; Wang, Joseph
Source:
Journal of the American Chemical Society 2018 v.140 no.11 pp. 3810-3820
ISSN:
1520-5126
Subject:
pollutants,   etc   ; chelation;     Show all 2 Subject
Abstract:
... This perspective reviews mobile micro/nanomotor scaffolds for performing “chemistry-on-the-fly”. Synthetic nano/micromotors offer great versatility and distinct advantages in diverse chemical applications owing to their efficient propulsion and facile surface functionalization that allow these mobile platforms to move and disperse reactive materials across the solution. Such dynamic microreactors ...
DOI:
10.1021/jacs.8b00088

2. Input of Pollutants with Winter Precipitation onto Vorkuta Agglomeration Territory

Author:
Vasilevich, M.I.; Vasilevich, R.S.; Shmarikova, E.V.
Source:
Water resources 2018 v.45 no.3 pp. 338-347
ISSN:
0097-8078
Subject:
pollutants,   etc   ; cement; chemistry; snowpack;     Show all 4 Subjects
Abstract:
... The chemistry of snow cover in the territory of Vorkuta agglomeration is assessed. Pollutant inputs onto the territories of sanitary protection zones of industrial plants of Vorkuta C., including the mines of Vorkutinskaya and Yun’-Yaga and cement factory are calculated. Schematic maps are constructed for the distribution of substances in the examined territory. The input of pollutants onto cement ...
DOI:
10.1134/S0097807818030156

3. A novel gas-solids separator scheme of coupling cyclone with circulating granular bed filter (C-CGBF)

Author:
Gao, Sihong; Zhang, Dandan; Fan, Yiping; Lu, Chunxi
Source:
Journal of hazardous materials 2019 v.362 pp. 403-411
ISSN:
0304-3894
Subject:
air pollutants,   etc   ; cyclone separators; dust; filter cake; filters; fluidized beds;     Show all 6 Subjects
Abstract:
... A novel gas-solids separator scheme of coupling cyclone with circulating granular bed filter (C-CGBF) was proposed. The influences of the operating regimes, the inlet dust concentrations and the inlet gas flow rates on the scheme were investigated in a pilot-scale cold-model experimental apparatus. The pressure drop and the collection efficiency were measured and analyzed. It was shown that, diffe ...
DOI:
10.1016/j.jhazmat.2018.07.065

4. Real-time Monitoring of Pollutant Diffusion States and Source Using Fuzzy Adaptive Kalman Filter

Author:
Wang, Xudong; Zhang, Daqian; Chen, Liying
Source:
Water, air, and soil pollution 2018 v.229 no.7 pp. 238
ISSN:
0049-6979
Subject:
pollutants,   etc   ; algorithms; equations; monitoring; pollution;     Show all 5 Subjects
Abstract:
... An inverse analysis method for the real-time monitoring of pollutant diffusion is developed based on fuzzy adaptive Kalman filter (FAKF) coupled with weighted recursive least squares algorithm (WRLSA). In the monitoring process, the discrete diffusion states equation is established first. Then, the FAKF is adopted to realize the precise monitoring of the pollution diffusion states while the WRLSA ...
DOI:
10.1007/s11270-018-3885-z

5. Studying the Process of Pollutant Transport by Water Flowing under a Dam with a Rabbet

Author:
Shamsiev, M. N.; Zinnatullina, A. N.; Ibyatov, R. I.
Source:
Water resources 2018 v.45 no.4 pp. 560-564
ISSN:
0097-8078
Subject:
pollutants,   etc   ; dams (hydrology); water flow;     Show all 3 Subjects
Abstract:
... The process of pollutant transport by water flowing under a hydraulic structure is examined. The study is focused on the effect of the number of rabbet under the dam and their positions relative to its subsurface contour on the process of pollutant transport. ...
DOI:
10.1134/S009780781804019X

6. Re-thinking classical mechanistic model for pollutant build-up on urban impervious surfaces

Author:
Wei, Tong; Wijesiri, Buddhi; Jia, Ziliang; Li, Yingxia; Goonetilleke, Ashantha
Source:
The Science of the total environment 2019 v.651 pp. 114-121
ISSN:
0048-9697
Subject:
pollutants,   etc   ; anthropogenic activities; land use; mechanistic models; particulates; prediction; residential areas; stormwater management; texture; traffic;     Show all 10 Subjects
Abstract:
... Accurate modelling of particulates build-up process is essential for designing effective stormwater management strategies. However, current modelling practice relies on the classical ‘power model’ which has limitations in accounting for the variability in the build-up process. This research study investigated the relationships between influential factors of the build-up process and coefficients in ...
DOI:
10.1016/j.scitotenv.2018.09.013

7. Impact of primary NO2 emissions at different urban sites exceeding the European NO2 standard limit

Author:
Casquero-Vera, J.A.; Lyamani, H.; Titos, G.; Borrás, E.; Olmo, F.J.; Alados-Arboledas, L.
Source:
The Science of the total environment 2019 v.646 pp. 1117-1125
ISSN:
0048-9697
Subject:
pollutants,   etc   ; European Union; air quality; cities; emissions; nitric oxide; nitrogen dioxide; roads; traffic; urban areas;     Show all 10 Subjects
Abstract:
... A large part of the European population is still exposed to ambient nitrogen dioxide (NO2) levels exceeding the European Union (EU) air quality standards, being a key challenge to reduce NO2 concentrations across many European urban areas, particularly close to roads. In this work, a trend analysis of pollutants involved in NO2 processes was done for the period 2003–2014 in traffic sites from thre ...
DOI:
10.1016/j.scitotenv.2018.07.360

8. From waste hot-pot oil as carbon precursor to development of recyclable attapulgite/carbon composites for wastewater treatment

Author:
Tang, Jie; Mu, Bin; Zong, Li; Wang, Aiqin
Source:
Journal of environmental sciences (China) 2019 v.75 pp. 346-358
ISSN:
1001-0742
Subject:
pollutants,   etc   ; adsorption; carbon; cost effectiveness; gentian violet; oils; pH; pollution control; recycling; tetracycline; wastes; wastewater treatment;     Show all 12 Subjects
Abstract:
... The utilization of waste products as valuable materials was a technical imperative for waste management. In this study, the cost-effective attapulgite/carbon (APT/C) composite was developed for wastewater treatment using waste hot-pot oil as a carbon precursor through a facile one-step calcination process. The APT/C composite prepared at 300°C exhibited the excellent adsorption capacity and rapid ...
DOI:
10.1016/j.jes.2018.05.014

9. Synthesis of a novel magnetic SnNb2O6/CoFe-LDH 2D/2D heterostructure for the degradation of organic pollutants under visible light irradiation

Author:
Liu, Jun; Li, Jia; Wang, Longxin; Bing, Xingmei; Cui, Xinling; Ji, Fei; Dienguila Kionga, Denis
Source:
Journal of materials science 2019 v.54 no.1 pp. 172-187
ISSN:
0022-2461
Subject:
pollutants,   etc   ; aqueous solutions; energy; irradiation; magnetic fields; methyl orange; photocatalysis; photocatalysts; wastewater treatment;     Show all 9 Subjects
Abstract:
... A novel two-dimensional/two-dimensional (2D/2D) magnetic SnNb₂O₆/CoFe-LDH hybrid was first prepared via a simple hydrothermal assembly method. The SnNb₂O₆/CoFe-LDH heterostructures displayed distinctly enhanced photocatalytic ability toward Methyl orange (MO), which was about 1.1 and 1.2 times higher than that of SnNb₂O₆ and CoFe-LDH, respectively. It is believed that the improved photocatalytic p ...
DOI:
10.1007/s10853-018-2810-6

10. Enhancing flame flashback resistance against Combustion Induced Vortex Breakdown and Boundary Layer Flashback in swirl burners

Author:
Hatem, F.A.; Alsaegh, A.S.; Al-Faham, M.; Valera-Medina, A.; Chong, C.T.; Hassoni, S.M.
Source:
Applied energy 2018 v.230 pp. 946-959
ISSN:
0306-2619
Subject:
pollutants,   etc   ; air; alternative fuels; burners; burning; combustion;     Show all 6 Subjects
Abstract:
... Swirl combustors have proven to be effective flame stabilisers over a wide range of operation conditions thanks to the formation of well-known swirl coherent structures. However, their employment for lean premixed combustion modes while introducing alternative fuels such as high hydrogenated blends results in many combustion instabilities. Under these conditions, flame flashback is considered one ...
DOI:
10.1016/j.apenergy.2018.09.055

11. The response of cultured meiofaunal and benthic foraminiferal communities to lead exposure: Results from mesocosm experiments

Author:
Frontalini, Fabrizio; Semprucci, Federica; Di Bella, Letizia; Caruso, Antonio; Cosentino, Claudia; Maccotta, Antonella; Scopelliti, Giovanna; Sbrocca, Claudia; Bucci, Carla; Balsamo, Maria; Martins, Maria Virginia; Armynot du Châtelet, Eric; Coccioni, Rodolfo
Source:
Environmental toxicology and chemistry 2018 v.37 no.9 pp. 2439-2447
ISSN:
0730-7268
Subject:
pollutants,   etc   ; Animalia; Protozoa; guidelines; lead; seawater; sediments;     Show all 7 Subjects
Abstract:
... Lead (Pb) is regarded as a highly toxic element that poses a serious threat to biota. A mesocosm experiment was performed to assess the influence of Pb on meiofaunal (metazoans within 45–500 μm) and benthic foraminiferal (protozoan) communities. To this end, sediments bearing such communities were incubated in mesocosms, exposed to different levels of Pb in seawater, and monitored for up to 8 wk. ...
DOI:
10.1002/etc.4207

12. Simulation and sensitivity analysis of spiral wound reverse osmosis process for the removal of dimethylphenol from wastewater using 2-D dynamic model

Author:
Al-Obaidi, Mudhar A.; Kara-Zaïtri, Chakib; Mujtaba, Iqbal M.
Source:
Journal of cleaner production 2018 v.193 pp. 140-157
ISSN:
0959-6526
Subject:
pollutants,   etc   ; controllers; dynamic models; reverse osmosis; wastewater;     Show all 5 Subjects
Abstract:
... Reverse Osmosis (RO) processes are readily used for removing pollutants, such as dimethylphenol from wastewater. A number of operating parameters must be controlled within the process constraints to achieve an efficient removal of such pollutants. Understanding the process dynamics is absolutely essential and is a pre-step for designing any effective controllers for any process. In this work, a de ...
DOI:
10.1016/j.jclepro.2018.05.036

13. The environmental characteristics and applications of biochar

Author:
Zhang, Chaosheng; Liu, Li; Zhao, Meihua; Rong, Hongwei; Xu, Ying
Source:
Environmental science and pollution research international 2018 v.25 no.22 pp. 21525-21534
ISSN:
0944-1344
Subject:
pollutants,   etc   ; biochar; environmental degradation; feedstocks; pyrolysis; remediation;     Show all 6 Subjects
Abstract:
... The environmental deterioration is in a grave situation, and it is urgent to restore the environment. Biochar is a carbon-rich pyrolysis product of feedstock, which has aroused extensive concern due to its broad application potential for getting rid of pollutants and rehabilitating environment. This review generalizes three aspects on biochar, including production and properties, applications and ...
DOI:
10.1007/s11356-018-2521-1

14. Micro- and Nanomotors as Active Environmental Microcleaners and Sensors

Author:
Parmar, Jemish; Vilela, Diana; Villa, Katherine; Wang, Joseph; Sánchez, Samuel
Source:
Journal of the American Chemical Society 2018 v.140 no.30 pp. 9317-9331
ISSN:
1520-5126
Subject:
pollutants,   etc   ; mass transfer; mixing; nanotechnology; remediation;     Show all 5 Subjects
Abstract:
... The quest to provide clean water to the entire population has led to a tremendous boost in the development of environmental nanotechnology. Toward this end, micro/nanomotors are emerging as attractive tools to improve the removal of various pollutants. The micro/nanomotors either are designed with functional materials in their structure or are modified to target pollutants. The active motion of th ...
DOI:
10.1021/jacs.8b05762

15. Advancement and Challenges of Microplastic Pollution in the Aquatic Environment: a Review

Author:
Yu, Yue; Zhou, Dongren; Li, Zhanming; Zhu, Cheng
Source:
Water, air, and soil pollution 2018 v.229 no.5 pp. 140
ISSN:
0049-6979
Subject:
pollutants,   etc   ; aquatic environment; oceans; plastics; pollution; sediments;     Show all 6 Subjects
Abstract:
... As a new persistent environmental pollutant, microplastic pollution has attracted great interest recently. Microplastic particles are distributed widely throughout the world’s freshwaters, oceans, and seas, including the water column and sediments reaching as far as the deep sea. However, the practical considerations and protocols for microplastic pollution have, to the best of our knowledge, not ...
DOI:
10.1007/s11270-018-3788-z

16. Characterizing emission rates of regulated pollutants from model year 2012+ heavy-duty diesel vehicles equipped with DPF and SCR systems

Author:
Jiang, Yu; Yang, Jiacheng; Cocker, David; Karavalakis, Georgios; Johnson, Kent C.; Durbin, Thomas D.
Source:
The Science of the total environment 2018 v.619-620 pp. 765-771
ISSN:
0048-9697
Subject:
pollutants,   etc   ; emissions; filters; models; nitrogen oxides; trucks;     Show all 6 Subjects
Abstract:
... The regulated emissions of five 2012 and newer, low-mileage, heavy-duty Class 8 diesel trucks equipped with diesel particulate filters (DPFs) and selective catalytic reduction (SCR) systems were evaluated over test cycles representing urban, highway, and stop-and-go driving on a chassis dynamometer. NOx emissions over the Urban Dynamometer Driving Schedule (UDDS) ranged from 0.495 to 1.363g/mi (0. ...
DOI:
10.1016/j.scitotenv.2017.11.120

17. Understanding Excess Emissions from Industrial Facilities: Evidence from Texas

Author:
Zirogiannis, Nikolaos; Hollingsworth, Alex J.; Konisky, David M.
Source:
Environmental science & technology 2018 v.52 no.5 pp. 2482-2490
ISSN:
1520-5851
Subject:
pollutants,   etc   ; emissions; environmental quality; models; pollution; Texas;     Show all 6 Subjects
Abstract:
... We analyze excess emissions from industrial facilities in Texas using data from the Texas Commission on Environmental Quality. Emissions are characterized as excess if they are beyond a facility’s permitted levels and if they occur during startups, shutdowns, or malfunctions. We provide summary data on both the pollutants most often emitted as excess emissions and the industrial sectors and facili ...
DOI:
10.1021/acs.est.7b04887

18. Reversible Strategy of Water Monitoring Aimed at Amphiphilic Pollutants

Author:
Zhang, Quan; Meng, Peng; Wu, Yulong; Zheng, Ruiting; Wu, Xiaoling; Cheng, Guoan
Source:
ACS applied materials & interfaces 2018 v.10 no.3 pp. 3106-3111
ISSN:
1944-8252
Subject:
pollutants,   etc   ; carbon nanotubes; monitoring; solvents; surfactants;     Show all 5 Subjects
Abstract:
... For monitoring diverse pollutants in a complicated water environment, the design and development of various detection strategies are necessary. Here, we introduce a general strategy of water monitoring aimed at amphiphilic pollutants using carbon nanotube based film. The pollutants with amphiphilic characteristics can tune the wetting behavior between carbon nanotubes and water molecules, leading ...
DOI:
10.1021/acsami.7b16186

19. Experimental investigation on knocking combustion characteristics of gasoline compression ignition engine

Author:
Wei, Haiqiao; Hua, Jianxiong; Pan, Mingzhang; Feng, Dengquan; Zhou, Lei; Pan, Jiaying
Source:
Energy 2018 v.143 pp. 624-633
ISSN:
0360-5442
Subject:
pollutants,   etc   ; burning; combustion; cylinders; emissions; gasoline; heat;     Show all 7 Subjects
Abstract:
... Gasoline compression ignition (GCI) is one of the most promising combustion concepts to maintain low pollutant emissions and high efficiency. However, knock phenomenon is an obstacle to GCI combustion. In this paper, experimental investigation is conducted to study GCI knocking characteristics. Firstly, analysis of engine performance and knocking trends was conducted, which shows an increasing tre ...
DOI:
10.1016/j.energy.2017.11.020

20. The Effect of Emission Information on Housing Prices: Quasi-Experimental Evidence from the European Pollutant Release and Transfer Register

Author:
von Graevenitz, Kathrine; Römer, Daniel; Rohlf, Alexander
Source:
Environmental and resource economics 2018 v.69 no.1 pp. 23-74
ISSN:
0924-6460
Subject:
pollutants,   etc   ; income; land use; models; prices; Germany;     Show all 6 Subjects
Abstract:
... In this paper, we study whether the release of pollutant emission information has an effect on housing prices. The event under study is the publication of the first wave of emission quantity data from the European Pollutant Release and Transfer Register in 2009. Our analysis is based on quarterly housing prices at the German postal code level for the years 2007–2011 and provides the first evidence ...
DOI:
10.1007/s10640-016-0065-8