Towards the development of a novel construction solid waste (CSW) based constructed wetland system for tertiary treatment of secondary sewage effluents

Files in This Item:
File Description SizeFormat 
2-JESH-A-2011.pdf363.02 kBAdobe PDFDownload
Title: Towards the development of a novel construction solid waste (CSW) based constructed wetland system for tertiary treatment of secondary sewage effluents
Authors: Yang, Y.
Zhang, L.
Zhao, Y.Q.
Wang, S.P.
Guo, X.C.
Guo, Y.
Wang, L.
Ren, Y.X.
Wang, X.C.
Permanent link: http://hdl.handle.net/10197/3106
Date: Jun-2011
Abstract: This study was conducted to examine the possibility of using construction solid waste (CSW), an inevitable by-product of the construction and demolition process, as the main substrate in a laboratory scale multi-stage constructed wetland system (CWs) to improve phosphorus (P) removal from secondary sewage effluent. A tidal-flow operation strategy was employed to enhance the wetland aeration. This will stimulate aerobic biological processes and benefit the organic pollutants decomposition and nitrification process for ammoniacal-nitrogen (NH4+-N) removal. The results showed that the average P concentration in the secondary sewage effluent was reduced from 1.90 mg-P/L to 0.04 mg-P/L. CSW presents excellent P removal performance. The average NH4+-N concentration was reduced from 9.94 mg-N/L to 1.0 mg-N/L through nitrification in the system. The concentration of resultant nitrite and nitrate in the effluent of the CSW based CWs ranged from 0.1 to 2.4 mg-N/L and 0.01 to 0.8 mg-N/L, respectively. The outcome of this study has shown that CSW can be successfully used to act as main substrate in CWs. The application of CSW based CWs on improving N and P removals from secondary sewage effluent presents a win-win scenario. Such the reuse of CSW will benefit both the CSW disposal and nutrient control from wastewater. More significantly, such the application can transfer the CSW from a ‘waste’ to ‘useful’ material and can ease the pressure of construction waste solid management. Meanwhile, the final effluent from the CSW-based CWs can be used as non-potable water source in landscape irrigation, agriculture and industrial process.
Funding Details: Not applicable
Type of material: Journal Article
Publisher: Taylor & Francis
Copyright (published version): Taylor & Francis Group, LLC
Keywords: Construction solid waste;Constructed wetland;Nutrient removal;Reuse;Tertiary treatment
Subject LCSH: Construction and demolition debris
Constructed wetlands
Sewage--Purification--Nutrient removal
DOI: 10.1080/10934529.2011.571621
Language: en
Status of Item: Peer reviewed
Appears in Collections:Urban Institute Ireland Research Collection
Critical Infrastructure Group Research Collection
Civil Engineering Research Collection

Show full item record

SCOPUSTM   
Citations 50

5
Last Week
0
Last month
checked on Jun 22, 2018

Page view(s) 50

115
checked on May 25, 2018

Download(s) 20

516
checked on May 25, 2018

Google ScholarTM

Check

Altmetric


This item is available under the Attribution-NonCommercial-NoDerivs 3.0 Ireland. No item may be reproduced for commercial purposes. For other possible restrictions on use please refer to the publisher's URL where this is made available, or to notes contained in the item itself. Other terms may apply.