NDLI: Effects of influent C/N ratios on wastewater nutrient removal and simultaneous greenhouse gas emission from the combinations of vertical subsurface flow constructed wetlands and earthworm eco-filters for treating synthetic wastewater

Content Provider	World Health Organization (WHO)-Global Index Medicus
Author	Zhao, Yongjun Zhang, Yuejin Ge, Zhigang Hu, Changwei Zhang, Hui
Description	Country affiliation: China Author Affiliation: Zhao Y ( College of Biological and Chemical Engineering, Jiaxing University, Jiaxing 314001, China. zyjun2007@126.com.)
Abstract	This research focused on the nutrient removal and the simultaneous $CO_{2},$ $CH_{4},$ and $N_{2}O$ emission rates of various combinations of vertical subsurface flow constructed wetlands (VSFCWs) and earthworm eco-filters (EEs) under different influent C/N ratios in synthetic wastewater. The optimal parameters for nutrient removal were influent C/N ratios of 5 : 1 and 10 : 1 as well as the combination VSFCW–EE. Relatively low values of greenhouse gas (GHG) emission rates measured in situ were obtained at a C/N ratio of 5 : 1. The emission rates of $CH_{4}$ and $N_{2}O$ were considerably lower than that of $CO_{2}.$ The VSFCW–EE and EE–VSFCW combinations showed similar GHG emission results. The C/N ratio of 5 : 1 and the VSFCW–EE combination exhibited the highest nutrient removal efficiency with the lowest GHG emission rate. Wastewater nutrient removal and GHG emission were both high during summer (June to August) and low during winter (December to February).
File Format	HTM / HTML
ISSN	20507887
Issue Number	3
Volume Number	16
e-ISSN	20507895
Journal	Environmental Science: Processes & Impacts
Language	English
Publisher	Royal Society of Chemistry
Publisher Date	2014-03-01
Publisher Place	Great Britain (UK)
Access Restriction	Subscribed
Subject Keyword	Discipline Environmental Health Air Pollutants Analysis Carbon Environmental Monitoring Nitrogen Waste Disposal, Fluid Methods Waste Water Chemistry Wetlands Animals Carbon Dioxide Methane Nitrogen Dioxide Oligochaeta Journal Article Research Support, Non-u.s. Gov't
Content Type	Text
Resource Type	Article
Subject	Environmental Chemistry Public Health, Environmental and Occupational Health Management, Monitoring, Policy and Law

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in