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Biodiesel wastewater treatment by coagulation process for chemical oxygen demand reduction

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dc.citedby1
dc.contributor.authorLee C.M.en_US
dc.contributor.authorLutpi N.A.en_US
dc.contributor.authorWong Y.S.en_US
dc.contributor.authorOng S.A.en_US
dc.contributor.authorMalek M.A.en_US
dc.contributor.authorid57222297442en_US
dc.contributor.authorid55793936400en_US
dc.contributor.authorid56004092100en_US
dc.contributor.authorid57201387782en_US
dc.contributor.authorid55636320055en_US
dc.date.accessioned2023-05-29T09:09:01Z
dc.date.available2023-05-29T09:09:01Z
dc.date.issued2021
dc.descriptionAluminum 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 demanden_US
dc.description.abstractBiodiesel 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.en_US
dc.description.natureFinalen_US
dc.identifier.ArtNo12068
dc.identifier.doi10.1088/1755-1315/646/1/012068
dc.identifier.issue1
dc.identifier.scopus2-s2.0-85102211381
dc.identifier.urihttps://www.scopus.com/inward/record.uri?eid=2-s2.0-85102211381&doi=10.1088%2f1755-1315%2f646%2f1%2f012068&partnerID=40&md5=7005c922a4a01914adc1f84ef688da10
dc.identifier.urihttps://irepository.uniten.edu.my/handle/123456789/26315
dc.identifier.volume646
dc.publisherIOP Publishing Ltden_US
dc.relation.ispartofAll Open Access, Bronze
dc.sourceScopus
dc.sourcetitleIOP Conference Series: Earth and Environmental Science
dc.titleBiodiesel wastewater treatment by coagulation process for chemical oxygen demand reductionen_US
dc.typeConference Paperen_US
dspace.entity.typePublication
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