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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2021
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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) |
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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 |
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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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