Bioremediation of textile wastewater using Pleurotus pulmonarius

Tengku Elida Tengku Zainal Mulok, . and Seri Amelie Muliyadi, . and Noor Hana Hussain, . and Rohana Mat Nor, . Bioremediation of textile wastewater using Pleurotus pulmonarius. pp. 67-76. ISSN 2672-7226

The textile industry is a major polluter as it generates a high amount of wastewater on a daily basis. Conventional methods used to treat textile wastewater usually require a lot of energy and costs. Therefore bioremediation using white rot fungi (Pleurotus pulmonarius) has been proposed because it produces lignin modifying enzymes such as laccase lignin peroxidase and manganese peroxidase which breaks down pollutants in the wastewater. In this study Pleurotus pulmonarius is used to treat dyes and selected heavy metals in textile wastewater obtained from a laboratory of a local university. The treatment used shake flask fermentation at a pH of 3 agitation speed of 120 rpm and temperature of 40C to decolourise the dyes and reduce the heavy metal content. P. pulmonarius showed promising results with a maximum of 59.45 of dyes being decolourised after 144 hours. Furthermore the level of heavy metals as determined through Inductive Coupled Plasma Optical Emission Spectrometry is reduced to 34.54 0.7682 38.17 and 41.94 for copper iron manganese and zinc respectively after 144 hours of incubation. However the biochemical oxygen demand of the wastewater increased with treatment and the fungi cells are not viable anymore after 72 hours of incubation. With further optimisation P. pulmonarius seems to be a promising bioremediating agent for treatment of textile wastewater.

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Abstract

The textile industry is a major polluter as it generates a high amount of wastewater on a daily basis. Conventional methods used to treat textile wastewater usually require a lot of energy and costs. Therefore bioremediation using white rot fungi (Pleurotus pulmonarius) has been proposed because it produces lignin modifying enzymes such as laccase lignin peroxidase and manganese peroxidase which breaks down pollutants in the wastewater. In this study Pleurotus pulmonarius is used to treat dyes and selected heavy metals in textile wastewater obtained from a laboratory of a local university. The treatment used shake flask fermentation at a pH of 3 agitation speed of 120 rpm and temperature of 40C to decolourise the dyes and reduce the heavy metal content. P. pulmonarius showed promising results with a maximum of 59.45 of dyes being decolourised after 144 hours. Furthermore the level of heavy metals as determined through Inductive Coupled Plasma Optical Emission Spectrometry is reduced to 34.54 0.7682 38.17 and 41.94 for copper iron manganese and zinc respectively after 144 hours of incubation. However the biochemical oxygen demand of the wastewater increased with treatment and the fungi cells are not viable anymore after 72 hours of incubation. With further optimisation P. pulmonarius seems to be a promising bioremediating agent for treatment of textile wastewater.

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Item Type:	Article
AGROVOC Term:	Industrial wastewater
AGROVOC Term:	Textile industry
AGROVOC Term:	Bioremediation
AGROVOC Term:	Pleurotus
AGROVOC Term:	Fungi
AGROVOC Term:	Dyes
AGROVOC Term:	Heavy metals
AGROVOC Term:	Water pollution
AGROVOC Term:	Wastewater treatment
Depositing User:	Mr. AFANDI ABDUL MALEK
Last Modified:	24 Apr 2025 00:55
URI:	http://webagris.upm.edu.my/id/eprint/10702

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