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Biodiesel wastewater treatment by coagulation process for chemical oxygen demand reduction

Aluminum chloride; Biodiesel; Chlorine compounds; Coagulation; Mixing; Oxygen; pH; Silica; Soils; Sulfur compounds; Wastewater treatment; Alkali catalysts; Aluminium sulphate; Anionic polymers; Coagulation process; Effective range; Optimum conditions; Poly aluminium chlorides; Raw wastewaters; Chemi...

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Main Authors: Lee C.M., Lutpi N.A., Wong Y.S., Ong S.A., Malek M.A.
Other Authors: 57222297442
Format: Conference Paper
Published: IOP Publishing Ltd 2023
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spelling my.uniten.dspace-263152023-05-29T17:09:01Z Biodiesel wastewater treatment by coagulation process for chemical oxygen demand reduction Lee C.M. Lutpi N.A. Wong Y.S. Ong S.A. Malek M.A. 57222297442 55793936400 56004092100 57201387782 55636320055 Aluminum chloride; Biodiesel; Chlorine compounds; Coagulation; Mixing; Oxygen; pH; Silica; Soils; Sulfur compounds; Wastewater treatment; Alkali catalysts; Aluminium sulphate; Anionic polymers; Coagulation process; Effective range; Optimum conditions; Poly aluminium chlorides; Raw wastewaters; Chemical oxygen demand Biodiesel wastewater contained residual of alkali catalyst, soap and glycerol which causing in high chemical oxygen demand (COD). The optimum conditions of aluminium sulphate (alum), poly-aluminium chloride (PAC) and laterite soil (silifloc) in the coagulation of biodiesel wastewater for COD reduction were explored through a sequence of studies including the effects of pH and dosage of coagulants. Coagulation process were conducted in the fixed conditions of mixing rate, mixing time, settling time and anionic polymer aid as flocculant. Silifloc could treat acidified biodiesel wastewater with 32.35 % at pH 2 and dosage of 4000ppm, the highest among these three coagulants. This was due to the silifloc rich in silica component had a higher rate law at sufficient dosage and had an effective range of at around pH 2. Whereas, PAC had a highest efficiency with 61.58% at pH 6 and dosage of 1100ppm in coagulation of raw biodiesel wastewater due to its solubility and elements of higher ions content. On other hand, alum had a moderate performance in acidified and raw wastewater with 26.42 % at pH 6 and 57.63 % at pH 4, respectively. � Published under licence by IOP Publishing Ltd. Final 2023-05-29T09:09:01Z 2023-05-29T09:09:01Z 2021 Conference Paper 10.1088/1755-1315/646/1/012068 2-s2.0-85102211381 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85102211381&doi=10.1088%2f1755-1315%2f646%2f1%2f012068&partnerID=40&md5=7005c922a4a01914adc1f84ef688da10 https://irepository.uniten.edu.my/handle/123456789/26315 646 1 12068 All Open Access, Bronze IOP Publishing Ltd Scopus
institution Universiti Tenaga Nasional
building UNITEN Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Tenaga Nasional
content_source UNITEN Institutional Repository
url_provider http://dspace.uniten.edu.my/
description Aluminum chloride; Biodiesel; Chlorine compounds; Coagulation; Mixing; Oxygen; pH; Silica; Soils; Sulfur compounds; Wastewater treatment; Alkali catalysts; Aluminium sulphate; Anionic polymers; Coagulation process; Effective range; Optimum conditions; Poly aluminium chlorides; Raw wastewaters; Chemical oxygen demand
author2 57222297442
author_facet 57222297442
Lee C.M.
Lutpi N.A.
Wong Y.S.
Ong S.A.
Malek M.A.
format Conference Paper
author Lee C.M.
Lutpi N.A.
Wong Y.S.
Ong S.A.
Malek M.A.
spellingShingle Lee C.M.
Lutpi N.A.
Wong Y.S.
Ong S.A.
Malek M.A.
Biodiesel wastewater treatment by coagulation process for chemical oxygen demand reduction
author_sort Lee C.M.
title Biodiesel wastewater treatment by coagulation process for chemical oxygen demand reduction
title_short Biodiesel wastewater treatment by coagulation process for chemical oxygen demand reduction
title_full Biodiesel wastewater treatment by coagulation process for chemical oxygen demand reduction
title_fullStr Biodiesel wastewater treatment by coagulation process for chemical oxygen demand reduction
title_full_unstemmed Biodiesel wastewater treatment by coagulation process for chemical oxygen demand reduction
title_sort biodiesel wastewater treatment by coagulation process for chemical oxygen demand reduction
publisher IOP Publishing Ltd
publishDate 2023
_version_ 1806426612006125568
score 13.223943

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