Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/34773
Title: A combined bioprocess for integrated removal of copper and organic pollutant from copper-containing municipal wastewater
Authors: Wang, L
Chua, H
Sin, SN
Zhou, Q
Ren, DM
Li, ZL
Keywords: Cell pretreatment
COD removal
COD adsorption capacity (CAC)
Cu2+ adsorption
Pseudomonas putida
Issue Date: 2004
Publisher: Taylor & Francis
Source: Journal of environmental science and health (part A) toxic/hazardous substances & environmental engineering, 2004, v. 39, no. 1, p. 223-235 How to cite?
Journal: Journal of environmental science and health (part A) toxic/hazardous substances & environmental engineering
Abstract: Heavy metal-containing wastewater is difficult to treat by most of the bioprocess due to its toxicity to microorganism in activated sludge. In this study, a combined bioprocess consisting of biosorption section that contained magnetite immobilized Pseudomonas putida 5-x cell as biosorbent followed by sequence batch reactor (SBR) was developed to treat Cu2+-containing municipal wastewater. The production techniques of Pseudomonas putida 5-x cell as biosorbent, such as optimal cell harvest period and cell pretreatment techniques were studied. Experimental results showed, considering both cell biomass and cell adsorption capacity to Cu2+, 36 h is the optimal harvest period in the course of culturing Pseudomonas putida 5-x cells as biosorbent, and 0.1–0.3 mol L−1 HCl is an optimal cell pretreating eluant to improve Cu2+ adsorption capacity. The performances of the combined bioprocess for treating Cu2+ containing wastewater were assessed. Experimental results showed that after treatment by biosorption, the Cu2+ level in wastewater was reduced to level that did not inhibit COD removal efficiency of subsequent SBR activated sludge process, although it still affected the COD adsorption capacity of activated sludge. In terms of COD removal, the biosorption section was efficient for reducing Cu2+ concentration to provide biodegradable wastewater for subsequent SBR activated sludge process.
URI: http://hdl.handle.net/10397/34773
ISSN: 1093-4529
DOI: 10.1081/ESE-120027380
Appears in Collections:Journal/Magazine Article

Access
View full-text via PolyU eLinks SFX Query
Show full item record

Google ScholarTM

Check

Altmetric



Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.