Keyword search (3,448 papers available)


Exploring the decentralized treatment of sulfamethoxazole-contained poultry wastewater through vertical-flow multi-soil-layering systems in rural communities.

Author(s): Song P, Huang G, An C, Xin X, Zhang P, Chen X, Ren S, Xu Z, Yang X

Sulfamethoxazole (SMX) is the most widely distributed sulfonamide antibiotics detected in decentralized poultry wastewater in rural communities. As an economically-feasible and eco-friendly technology for decentralized wastewater treatment in rural areas, v...

Article GUID: 33065414
Exploration of nanocellulose washing agent for the green remediation of phenanthrene-contaminated soil.

Author(s): Yin J, Huang G, An C, Zhang P, Xin X, Feng R

Polycyclic aromatic hydrocarbons are hazardous contaminants existing ubiquitously in polluted soil. In this study, using nanocellulose (CNC) fluid as an eco-friendly agent was proposed for the first time in the remediation of phenanthrene (PHE) contaminated...

Article GUID: 33264936
A biophysiological perspective on enhanced nitrate removal from decentralized domestic sewage using gravitational-flow multi-soil-layering systems.

Author(s): Song P, Huang G, Hong Y, An C, Xin X, Zhang P

Chemosphere. 2019 Sep 14;240:124868 Authors: Song P, Huang G, Hong Y, An C, Xin X, Zhang P

Article GUID: 31542583
Performance analysis and life cycle greenhouse gas emission assessment of an integrated gravitational-flow wastewater treatment system for rural areas.

Author(s): Song P, Huang G, An C, Zhang P, Chen X, Ren S

Environ Sci Pollut Res Int. 2019 Jul 04;: Authors: Song P, Huang G, An C, Zhang P, Chen X, Ren S

Article GUID: 31273662
Performance of ceramic disk filter coated with nano ZnO for removing Escherichia coli from water in small rural and remote communities of developing regions.

Author(s): Huang J, Huang G, An C, He Y, Yao Y, Zhang P, Shen J

Environ Pollut. 2018 Jul;238:52-62 Authors: Huang J, Huang G, An C, He Y, Yao Y, Zhang P, Shen J

Article GUID: 29544196
Treatment of rural domestic wastewater using multi-soil-layering systems: Performance evaluation, factorial analysis and numerical modeling.

Author(s): Song P, Huang G, An C, Shen J, Zhang P, Chen X, Shen J, Yao Y, Zheng R, Sun C

Sci Total Environ. 2018 Dec 10;644:536-546 Authors: Song P, Huang G, An C, Shen J, Zhang P, Chen X, Shen J, Yao Y, Zheng R, Sun C

Article GUID: 29990903
Enhanced nitrogen removal in the treatment of rural domestic sewage using vertical-flow multi-soil-layering systems: Experimental and modeling insights.

Author(s): Hong Y, Huang G, An C, Song P, Xin X, Chen X, Zhang P, Zhao Y, Zheng R

J Environ Manage. 2019 Jun 15;240:273-284 Authors: Hong Y, Huang G, An C, Song P, Xin X, Chen X, Zhang P, Zhao Y, Zheng R

Article GUID: 30952048
Title:A biophysiological perspective on enhanced nitrate removal from decentralized domestic sewage using gravitational-flow multi-soil-layering systems.
Authors:Song P,  Huang G,  Hong Y,  An C,  Xin X,  Zhang P
Link:https://www.ncbi.nlm.nih.gov/pubmed/31542583?dopt=Abstract
DOI:10.1016/j.chemosphere.2019.124868
Category:Chemosphere
PMID:31542583
Dept Affiliation: ENCS
1 MOE Key Laboratory of Resources and Environmental Systems Optimization, North China Electric Power University, Beijing, 102206, China.
2 Center for Energy, Environment and Ecology Research, UR-BNU, Beijing Normal University, Beijing, 100875, China. Electronic address: huang@iseis.org.
3 Department of Building, Civil and Environmental Engineering, Concordia University, Montreal, Quebec, H3G 1M8, Canada.
4 Institute for Energy, Environment and Sustainable Communities, University of Regina, Regina, S4S 0A2, Canada.

Description:

A biophysiological perspective on enhanced nitrate removal from decentralized domestic sewage using gravitational-flow multi-soil-layering systems.

Chemosphere. 2019 Sep 14;240:124868

Authors: Song P, Huang G, Hong Y, An C, Xin X, Zhang P

Abstract

Multi-soil-layering (MSL) system with brick-wall pattern structure and gravitational flow can be used for decentralized rural domestic sewage treatment. The capability of soil for contaminant removal is maximized within soil mixture blocks (SMBs). However, the performance of removing nitrate was still not ideal during operation. To improve its performance in MSL system, the relationship between biophysiological characteristics of denitrifying species and operating conditions was studied. Microbial species diversity of activated sludge and soil samples were analyzed. The significant effects of independent factors and their interactions on microbial species diversity and denitrifying species abundance were revealed on the basis of factorial analysis. The results indicated activated sludge in SMBs played a key role in increasing the richness of denitrifying species in MSL system. Slow-release poly (butylene succinate) (PBS) had the most dominant positive effect on increasing denitrifying species abundance. Submersion had significantly positive effect on species richness in SMBs. These three factors, including activated sludge, PBS in SMBs, and submersion condition had different significant effects on microbial responses. They were favorable for denitrification and ensuring a better removal efficiency of nitrate and total nitrogen. The porous zeolites were served as the habitats for most of aerobic bacteria to form biofilms, which could promote the oxygen consumption in both sewage and system to improve denitrification in SMBs. The results could help on the enhancement of denitrification in MSL system from biophysiological insights. It can provide a sound strategy for using MSL system with great performance on contaminant removal.

PMID: 31542583 [PubMed - as supplied by publisher]