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Effects of adsorbents and copper(II) on activated sludge microorganisms and sequencing batch reactor treatment process

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Main Authors: Ong, Soon An, Lim, Poh Eng, Seng, Chye Eng
Other Authors: saong@unimap.edu.my
Format: Article
Language:English
Published: Elsevier B.V. 2016
Subjects:
Biological wastewater treatment
Copper(II)
Rice husk
Sequencing batch reactor
Simultaneous adsorption and biodegradation
Online Access:http://dspace.unimap.edu.my:80/xmlui/handle/123456789/42199
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spelling my.unimap-421992016-06-25T04:31:30Z Effects of adsorbents and copper(II) on activated sludge microorganisms and sequencing batch reactor treatment process Ong, Soon An Lim, Poh Eng Seng, Chye Eng saong@unimap.edu.my Biological wastewater treatment Copper(II) Rice husk Sequencing batch reactor Simultaneous adsorption and biodegradation Link to publisher's homepage at http://www.journals.elsevier.com/ Wastewater treatment systems employing simultaneous adsorption and biodegradation processes have proven to be effective in treating toxic pollutants present in industrial wastewater. The objective of this study is to evaluate the effect of Cu(II) and the efficacy of the powdered activated carbon (PAC) and activated rice husk (ARH) in reducing the toxic effect of Cu(II) on the activated sludge microorganisms. The ARH was prepared by treatment with concentrated nitric acid for 15h at 60-65°C. The sequencing batch reactor (SBR) systems were operated with FILL, REACT, SETTLE, DRAW and IDLE modes in the ratio of 0.5:3.5:1:0.75:0.25 for a cycle time of 6h. The Cu(II) and COD removal efficiency were 90 and 85%, respectively, in the SBR system containing 10mg/l Cu(II) with the addition of 143mg/l PAC or 1.0g PAC per cycle. In the case of 715mg/l ARH or 5.0g ARH per cycle addition, the Cu(II) and COD removal efficiency were 85 and 92%, respectively. ARH can be used as an alternate adsorbent to PAC in the simultaneous adsorption and biodegradation wastewater treatment process for the removal of Cu(II). The specific oxygen uptake rate (SOUR) and kinetic studies show that the addition of PAC and ARH reduce the toxic effect of Cu(II) on the activated sludge microorganisms. 2016-06-25T04:31:30Z 2016-06-25T04:31:30Z 2003-10-31 Article Journal of Hazardous Materials, vol.103 (3), 2003, pages 263-277 0304-3894 http://dspace.unimap.edu.my:80/xmlui/handle/123456789/42199 doi:10.1016/j.jhazmat.2003.07.008 en Elsevier B.V.
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 Biological wastewater treatment
Copper(II)
Rice husk
Sequencing batch reactor
Simultaneous adsorption and biodegradation
spellingShingle Biological wastewater treatment
Copper(II)
Rice husk
Sequencing batch reactor
Simultaneous adsorption and biodegradation
Ong, Soon An
Lim, Poh Eng
Seng, Chye Eng
Effects of adsorbents and copper(II) on activated sludge microorganisms and sequencing batch reactor treatment process
description Link to publisher's homepage at http://www.journals.elsevier.com/
author2 saong@unimap.edu.my
author_facet saong@unimap.edu.my
Ong, Soon An
Lim, Poh Eng
Seng, Chye Eng
format Article
author Ong, Soon An
Lim, Poh Eng
Seng, Chye Eng
author_sort Ong, Soon An
title Effects of adsorbents and copper(II) on activated sludge microorganisms and sequencing batch reactor treatment process
title_short Effects of adsorbents and copper(II) on activated sludge microorganisms and sequencing batch reactor treatment process
title_full Effects of adsorbents and copper(II) on activated sludge microorganisms and sequencing batch reactor treatment process
title_fullStr Effects of adsorbents and copper(II) on activated sludge microorganisms and sequencing batch reactor treatment process
title_full_unstemmed Effects of adsorbents and copper(II) on activated sludge microorganisms and sequencing batch reactor treatment process
title_sort effects of adsorbents and copper(ii) on activated sludge microorganisms and sequencing batch reactor treatment process
publisher Elsevier B.V.
publishDate 2016
url http://dspace.unimap.edu.my:80/xmlui/handle/123456789/42199
_version_ 1643799641539477504
score 13.211869

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