Post-Treatment of Palm Oil Mill Effluent Using Immobilised Green Microalgae <i>Chlorococcum oleofaciens</i>

Microalgae immobilisation can be a long-term solution for effective wastewater post-treatment. This study was conducted to evaluate the ability of immobilised <i>Chlorococcum oleofaciens</i> to remove contaminants from palm oil mill effluent (POME) until it complies with the POME dischar...

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Autores principales: Kah Aik Tan, Japareng Lalung, Norhashimah Morad, Norli Ismail, Wan Maznah Wan Omar, Moonis Ali Khan, Mika Sillanpää, Mohd Rafatullah
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Publicado: MDPI AG 2021
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Acceso en línea:https://doaj.org/article/4057caa7126743ddad1bf8c32e68278c
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spelling oai:doaj.org-article:4057caa7126743ddad1bf8c32e68278c2021-11-11T19:21:02ZPost-Treatment of Palm Oil Mill Effluent Using Immobilised Green Microalgae <i>Chlorococcum oleofaciens</i>10.3390/su1321115622071-1050https://doaj.org/article/4057caa7126743ddad1bf8c32e68278c2021-10-01T00:00:00Zhttps://www.mdpi.com/2071-1050/13/21/11562https://doaj.org/toc/2071-1050Microalgae immobilisation can be a long-term solution for effective wastewater post-treatment. This study was conducted to evaluate the ability of immobilised <i>Chlorococcum oleofaciens</i> to remove contaminants from palm oil mill effluent (POME) until it complies with the POME discharge standard. First, the native dominating green microalga was isolated from a polishing POME treatment pond. Then, the microalgae cells were immobilised on sodium alginate beads and cultivated in a lab-scale-treated POME to treat it further. The immobilised microalgae cells demonstrated a high removal of total phosphorus, total nitrogen, ammonia nitrogen, and soluble chemical oxygen demand with 90.43%, 93.51%, 91.26%, and 50.72% of reduction, respectively. Furthermore, the growth rate of the microalgae fitted nicely with the Verhulst logistical model with r<sup>2</sup> of more than 0.99, indicating the model’s suitability in modelling the growth. Thus, we concluded that the species can be used for post-treatment of effluents to remove TP, TN, and ammonia nitrogen from palm oil mills until it complies with the POME effluent discharge standard. However, during the process, degradation of the beads occurred and the COD value increased. Therefore, it is not suitable to be used for COD removal.Kah Aik TanJapareng LalungNorhashimah MoradNorli IsmailWan Maznah Wan OmarMoonis Ali KhanMika SillanpääMohd RafatullahMDPI AGarticlealginate beads<i>C. oleofaciens</i>immobilisationgreen microalgaePOME treatmentpost-treatmentEnvironmental effects of industries and plantsTD194-195Renewable energy sourcesTJ807-830Environmental sciencesGE1-350ENSustainability, Vol 13, Iss 11562, p 11562 (2021)
institution DOAJ
collection DOAJ
language EN
topic alginate beads
<i>C. oleofaciens</i>
immobilisation
green microalgae
POME treatment
post-treatment
Environmental effects of industries and plants
TD194-195
Renewable energy sources
TJ807-830
Environmental sciences
GE1-350
spellingShingle alginate beads
<i>C. oleofaciens</i>
immobilisation
green microalgae
POME treatment
post-treatment
Environmental effects of industries and plants
TD194-195
Renewable energy sources
TJ807-830
Environmental sciences
GE1-350
Kah Aik Tan
Japareng Lalung
Norhashimah Morad
Norli Ismail
Wan Maznah Wan Omar
Moonis Ali Khan
Mika Sillanpää
Mohd Rafatullah
Post-Treatment of Palm Oil Mill Effluent Using Immobilised Green Microalgae <i>Chlorococcum oleofaciens</i>
description Microalgae immobilisation can be a long-term solution for effective wastewater post-treatment. This study was conducted to evaluate the ability of immobilised <i>Chlorococcum oleofaciens</i> to remove contaminants from palm oil mill effluent (POME) until it complies with the POME discharge standard. First, the native dominating green microalga was isolated from a polishing POME treatment pond. Then, the microalgae cells were immobilised on sodium alginate beads and cultivated in a lab-scale-treated POME to treat it further. The immobilised microalgae cells demonstrated a high removal of total phosphorus, total nitrogen, ammonia nitrogen, and soluble chemical oxygen demand with 90.43%, 93.51%, 91.26%, and 50.72% of reduction, respectively. Furthermore, the growth rate of the microalgae fitted nicely with the Verhulst logistical model with r<sup>2</sup> of more than 0.99, indicating the model’s suitability in modelling the growth. Thus, we concluded that the species can be used for post-treatment of effluents to remove TP, TN, and ammonia nitrogen from palm oil mills until it complies with the POME effluent discharge standard. However, during the process, degradation of the beads occurred and the COD value increased. Therefore, it is not suitable to be used for COD removal.
format article
author Kah Aik Tan
Japareng Lalung
Norhashimah Morad
Norli Ismail
Wan Maznah Wan Omar
Moonis Ali Khan
Mika Sillanpää
Mohd Rafatullah
author_facet Kah Aik Tan
Japareng Lalung
Norhashimah Morad
Norli Ismail
Wan Maznah Wan Omar
Moonis Ali Khan
Mika Sillanpää
Mohd Rafatullah
author_sort Kah Aik Tan
title Post-Treatment of Palm Oil Mill Effluent Using Immobilised Green Microalgae <i>Chlorococcum oleofaciens</i>
title_short Post-Treatment of Palm Oil Mill Effluent Using Immobilised Green Microalgae <i>Chlorococcum oleofaciens</i>
title_full Post-Treatment of Palm Oil Mill Effluent Using Immobilised Green Microalgae <i>Chlorococcum oleofaciens</i>
title_fullStr Post-Treatment of Palm Oil Mill Effluent Using Immobilised Green Microalgae <i>Chlorococcum oleofaciens</i>
title_full_unstemmed Post-Treatment of Palm Oil Mill Effluent Using Immobilised Green Microalgae <i>Chlorococcum oleofaciens</i>
title_sort post-treatment of palm oil mill effluent using immobilised green microalgae <i>chlorococcum oleofaciens</i>
publisher MDPI AG
publishDate 2021
url https://doaj.org/article/4057caa7126743ddad1bf8c32e68278c
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