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Electrolytic treatment of Standard Malaysian Rubber process wastewater

A new method of Standard Malaysian Rubber (SMR) process wastewater treatment was developed based on in situ hypochlorous acid generation. The hypochlorous acid was generated in an undivided electrolytic cell consisting of two sets of graphite as anode and stainless sheets as cathode. The generated h...

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Main Authors: Vijayaraghavan, Krishnan, Ahmad, Desa, Ahmad Yazid, Ahmad Yuzri
Format: Article
Language:English
English
Published: Elsevier 2008
Online Access:http://psasir.upm.edu.my/id/eprint/7831/1/Electrolytic%20treatment%20of%20Standard%20Malaysian%20Rubber%20process%20wastewater.pdf
http://psasir.upm.edu.my/id/eprint/7831/
http://dx.doi.org/10.1016/j.jhazmat.2007.04.112
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spelling my.upm.eprints.78312015-10-08T02:35:22Z http://psasir.upm.edu.my/id/eprint/7831/ Electrolytic treatment of Standard Malaysian Rubber process wastewater Vijayaraghavan, Krishnan Ahmad, Desa Ahmad Yazid, Ahmad Yuzri A new method of Standard Malaysian Rubber (SMR) process wastewater treatment was developed based on in situ hypochlorous acid generation. The hypochlorous acid was generated in an undivided electrolytic cell consisting of two sets of graphite as anode and stainless sheets as cathode. The generated hypochlorous acid served as an oxidizing agent to destroy the organic matter present in the SMR wastewater. For an influent COD concentration of 2960 mg/L at an initial pH 4.5 ± 0.1, current density 74.5 mA/cm2, sodium chloride content 3% and electrolysis period of 75 min, resulted in the following residual values pH 7.5, COD 87 mg/L, BOD5 60 mg/L, TOC 65 mg/L, total chlorine 146 mg/L, turbidity 7 NTU and temperature 48 °C, respectively. In the case of 2% sodium chloride as an electrolyte for the above said operating condition resulted in the following values namely: pH 7.2, COD 165 mg/L, BOD5 105 mg/L, TOC 120 mg/L, total chlorine 120 mg/L, turbidity 27 NTU and temperature 53 °C, respectively. The energy requirement were found to be 30 and 46 Wh/L, while treating 24 L of SMR wastewater at 2 and 3% sodium chloride concentration at a current density 74.5 mA/cm2. The observed energy difference was due to the improved conductivity at high sodium chloride content. Elsevier 2008-01-31 Article PeerReviewed application/pdf en http://psasir.upm.edu.my/id/eprint/7831/1/Electrolytic%20treatment%20of%20Standard%20Malaysian%20Rubber%20process%20wastewater.pdf Vijayaraghavan, Krishnan and Ahmad, Desa and Ahmad Yazid, Ahmad Yuzri (2008) Electrolytic treatment of Standard Malaysian Rubber process wastewater. Journal of Hazardous Materials, 150 (2). pp. 351-356. ISSN 0304-3894 http://dx.doi.org/10.1016/j.jhazmat.2007.04.112 10.1016/j.jhazmat.2007.04.112 English
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
English
description A new method of Standard Malaysian Rubber (SMR) process wastewater treatment was developed based on in situ hypochlorous acid generation. The hypochlorous acid was generated in an undivided electrolytic cell consisting of two sets of graphite as anode and stainless sheets as cathode. The generated hypochlorous acid served as an oxidizing agent to destroy the organic matter present in the SMR wastewater. For an influent COD concentration of 2960 mg/L at an initial pH 4.5 ± 0.1, current density 74.5 mA/cm2, sodium chloride content 3% and electrolysis period of 75 min, resulted in the following residual values pH 7.5, COD 87 mg/L, BOD5 60 mg/L, TOC 65 mg/L, total chlorine 146 mg/L, turbidity 7 NTU and temperature 48 °C, respectively. In the case of 2% sodium chloride as an electrolyte for the above said operating condition resulted in the following values namely: pH 7.2, COD 165 mg/L, BOD5 105 mg/L, TOC 120 mg/L, total chlorine 120 mg/L, turbidity 27 NTU and temperature 53 °C, respectively. The energy requirement were found to be 30 and 46 Wh/L, while treating 24 L of SMR wastewater at 2 and 3% sodium chloride concentration at a current density 74.5 mA/cm2. The observed energy difference was due to the improved conductivity at high sodium chloride content.
format Article
author Vijayaraghavan, Krishnan
Ahmad, Desa
Ahmad Yazid, Ahmad Yuzri
spellingShingle Vijayaraghavan, Krishnan
Ahmad, Desa
Ahmad Yazid, Ahmad Yuzri
Electrolytic treatment of Standard Malaysian Rubber process wastewater
author_facet Vijayaraghavan, Krishnan
Ahmad, Desa
Ahmad Yazid, Ahmad Yuzri
author_sort Vijayaraghavan, Krishnan
title Electrolytic treatment of Standard Malaysian Rubber process wastewater
title_short Electrolytic treatment of Standard Malaysian Rubber process wastewater
title_full Electrolytic treatment of Standard Malaysian Rubber process wastewater
title_fullStr Electrolytic treatment of Standard Malaysian Rubber process wastewater
title_full_unstemmed Electrolytic treatment of Standard Malaysian Rubber process wastewater
title_sort electrolytic treatment of standard malaysian rubber process wastewater
publisher Elsevier
publishDate 2008
url http://psasir.upm.edu.my/id/eprint/7831/1/Electrolytic%20treatment%20of%20Standard%20Malaysian%20Rubber%20process%20wastewater.pdf
http://psasir.upm.edu.my/id/eprint/7831/
http://dx.doi.org/10.1016/j.jhazmat.2007.04.112
_version_ 1643823839691407360
score 13.211869

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