Simultaneous adsorption and biodegradation processes in sequencing batch reactor (SBR) for treating copper and cadmium-containing wastewater

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Main Authors: Lim, Poh Eng, Ong, Soon An, Seng, Chye Eng
Format: Article
Language:English
Published: Elsevier Limited 2016
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Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41881
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spelling my.unimap-418812016-06-04T07:47:51Z Simultaneous adsorption and biodegradation processes in sequencing batch reactor (SBR) for treating copper and cadmium-containing wastewater Lim, Poh Eng Ong, Soon An Seng, Chye Eng Sequencing batch reactor Simultaneous adsorption and biodegradation Link to publisher's homepage at http://www.journals.elsevier.com The application of simultaneous adsorption and biodegradation processes in the same reactor is known to be effective in the removal of both biodegradable and non-biodegradable contaminants in various kinds of wastewater. The objective of this study is to evaluate the efficacy of the two processes under sequencing batch reactor (SBR) operation in treating copper and cadmium-containing synthetic wastewater with powdered activated carbon (PAC) as the adsorbent. The SBR systems were operated with FILL, REACT, SETTLE, DRAW and IDLE periods in the ratio of 0.5:3.5:1.0:0.75:0.25 for a cycle time of 6h. In the presence of 10mg/L Cu(II) and 30mg/L Cd(II), respectively, the average COD removal efficiencies were above 85% with the PAC dosage in the influent solution at 143mg/L compared to around 60% without PAC addition. Copper(II) was found to exert a more pronounced inhibitory effect on the bioactivity of the microorganisms compared to Cd(II). It was observed that the combined presence of Cu(II) and Cd(II) did not exert synergistic effects on the microorganisms. Kinetic study conducted for the REACT period showed that the addition of PAC had minimized the inhibitory effect of the heavy metals on the bioactivity of microorganisms. 2016-06-04T07:47:51Z 2016-06-04T07:47:51Z 2002 Article Water Research, vol.36 (3), 2002, pages 667-675 0043-1354 http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41881 doi:10.1016/S0043-1354(01)00257-3 en Elsevier Limited
institution Universiti Malaysia Perlis
building UniMAP Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Malaysia Perlis
content_source UniMAP Library Digital Repository
url_provider http://dspace.unimap.edu.my/
language English
topic Sequencing batch reactor
Simultaneous adsorption and biodegradation
spellingShingle Sequencing batch reactor
Simultaneous adsorption and biodegradation
Lim, Poh Eng
Ong, Soon An
Seng, Chye Eng
Simultaneous adsorption and biodegradation processes in sequencing batch reactor (SBR) for treating copper and cadmium-containing wastewater
description Link to publisher's homepage at http://www.journals.elsevier.com
format Article
author Lim, Poh Eng
Ong, Soon An
Seng, Chye Eng
author_facet Lim, Poh Eng
Ong, Soon An
Seng, Chye Eng
author_sort Lim, Poh Eng
title Simultaneous adsorption and biodegradation processes in sequencing batch reactor (SBR) for treating copper and cadmium-containing wastewater
title_short Simultaneous adsorption and biodegradation processes in sequencing batch reactor (SBR) for treating copper and cadmium-containing wastewater
title_full Simultaneous adsorption and biodegradation processes in sequencing batch reactor (SBR) for treating copper and cadmium-containing wastewater
title_fullStr Simultaneous adsorption and biodegradation processes in sequencing batch reactor (SBR) for treating copper and cadmium-containing wastewater
title_full_unstemmed Simultaneous adsorption and biodegradation processes in sequencing batch reactor (SBR) for treating copper and cadmium-containing wastewater
title_sort simultaneous adsorption and biodegradation processes in sequencing batch reactor (sbr) for treating copper and cadmium-containing wastewater
publisher Elsevier Limited
publishDate 2016
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/41881
_version_ 1643799638369632256
score 13.160551