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Chitosan for direct bioflocculation of wastewater

Coagulation/flocculation is a major phenomenon occurring during industrial and municipal water treatment to remove suspended particles. Common coagulants are metal salts, whereas flocculants are synthetic organic polymers. Those materials are appreciated for their high performance, low cost, ease of...

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Main Authors:	Lichtfouse, Eric, Morin-Crini, Nadia, Fourmentin, Marc, Nascimento, Inara Oliveira Carmo do, Queiroz, Luciano Matos, Mohd Yuhyi, Mohd Tadza, Picos-Corrales, Lorenzo A., Pei, Haiyan, Wilson, Lee D., Crini, Grégorio
Format:	Article
Language:	English
Published:	Springer Nature 2019
Subjects:	TA Engineering (General). Civil engineering (General)
Online Access:	http://umpir.ump.edu.my/id/eprint/25606/1/Chitosan%20for%20direct%20bioflocculation%20of%20wastewater.pdf http://umpir.ump.edu.my/id/eprint/25606/ https://doi.org/10.1007/s10311-019-00900-1 https://doi.org/10.1007/s10311-019-00900-1
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spelling	my.ump.umpir.256062019-08-08T04:57:08Z http://umpir.ump.edu.my/id/eprint/25606/ Chitosan for direct bioflocculation of wastewater Lichtfouse, Eric Morin-Crini, Nadia Fourmentin, Marc Nascimento, Inara Oliveira Carmo do Queiroz, Luciano Matos Mohd Yuhyi, Mohd Tadza Picos-Corrales, Lorenzo A. Pei, Haiyan Wilson, Lee D. Crini, Grégorio TA Engineering (General). Civil engineering (General) Coagulation/flocculation is a major phenomenon occurring during industrial and municipal water treatment to remove suspended particles. Common coagulants are metal salts, whereas flocculants are synthetic organic polymers. Those materials are appreciated for their high performance, low cost, ease of use, availability and efficiency. Nonetheless, their use has induced environmental health issues such as water pollution by metals and production of large amounts of sludges. As a consequence, alternative coagulants and flocculants, named biocoagulants and bioflocculants due to their biological origin and biodegradability, have been recently developed for water and wastewater treatment. In particular, chitosan and chitosan-based products have found applications as bioflocculants for the removal of particulate and dissolved pollutants by direct bioflocculation. Direct flocculation is done with water-soluble, ionic organic polymers without classical metal-based coagulants, thus limiting water pollution. Chitosan is a partially deacetylated polysaccharide obtained from chitin, a biopolymer extracted from shellfish sources. This polysaccharide exhibits a variety of physicochemical and functional properties resulting in numerous practical applications. Key findings show that chitosan removed more than 90% of solids and more than 95% of residual oil from palm oil mill effluents. Chitosan reduced efficiently the turbidity of agricultural wastewater and of seawater, below 0.4 NTU for the latter. 99% turbidity removal and 97% phosphate removal were observed over a wide pH range using 3-chloro-2-hydroxypropyl trimethylammonium chloride grafted onto carboxymethyl chitosan. Chitosan also removed 99% Microcystis aeruginosa cells and more than 50% of microcystins. Here, we review advantages and drawbacks of chitosan as bioflocculant. Then, we present examples in water and wastewater treatment, sludge dewatering and post-treatment of sanitary landfill leachate. Springer Nature 2019 Article PeerReviewed pdf en http://umpir.ump.edu.my/id/eprint/25606/1/Chitosan%20for%20direct%20bioflocculation%20of%20wastewater.pdf Lichtfouse, Eric and Morin-Crini, Nadia and Fourmentin, Marc and Nascimento, Inara Oliveira Carmo do and Queiroz, Luciano Matos and Mohd Yuhyi, Mohd Tadza and Picos-Corrales, Lorenzo A. and Pei, Haiyan and Wilson, Lee D. and Crini, Grégorio (2019) Chitosan for direct bioflocculation of wastewater. Environmental Chemistry Letters. pp. 1-19. ISSN 1610-3661 (In Press) https://doi.org/10.1007/s10311-019-00900-1 https://doi.org/10.1007/s10311-019-00900-1
institution	Universiti Malaysia Pahang
building	UMP Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaysia Pahang
content_source	UMP Institutional Repository
url_provider	http://umpir.ump.edu.my/
language	English
topic	TA Engineering (General). Civil engineering (General)
spellingShingle	TA Engineering (General). Civil engineering (General) Lichtfouse, Eric Morin-Crini, Nadia Fourmentin, Marc Nascimento, Inara Oliveira Carmo do Queiroz, Luciano Matos Mohd Yuhyi, Mohd Tadza Picos-Corrales, Lorenzo A. Pei, Haiyan Wilson, Lee D. Crini, Grégorio Chitosan for direct bioflocculation of wastewater
description	Coagulation/flocculation is a major phenomenon occurring during industrial and municipal water treatment to remove suspended particles. Common coagulants are metal salts, whereas flocculants are synthetic organic polymers. Those materials are appreciated for their high performance, low cost, ease of use, availability and efficiency. Nonetheless, their use has induced environmental health issues such as water pollution by metals and production of large amounts of sludges. As a consequence, alternative coagulants and flocculants, named biocoagulants and bioflocculants due to their biological origin and biodegradability, have been recently developed for water and wastewater treatment. In particular, chitosan and chitosan-based products have found applications as bioflocculants for the removal of particulate and dissolved pollutants by direct bioflocculation. Direct flocculation is done with water-soluble, ionic organic polymers without classical metal-based coagulants, thus limiting water pollution. Chitosan is a partially deacetylated polysaccharide obtained from chitin, a biopolymer extracted from shellfish sources. This polysaccharide exhibits a variety of physicochemical and functional properties resulting in numerous practical applications. Key findings show that chitosan removed more than 90% of solids and more than 95% of residual oil from palm oil mill effluents. Chitosan reduced efficiently the turbidity of agricultural wastewater and of seawater, below 0.4 NTU for the latter. 99% turbidity removal and 97% phosphate removal were observed over a wide pH range using 3-chloro-2-hydroxypropyl trimethylammonium chloride grafted onto carboxymethyl chitosan. Chitosan also removed 99% Microcystis aeruginosa cells and more than 50% of microcystins. Here, we review advantages and drawbacks of chitosan as bioflocculant. Then, we present examples in water and wastewater treatment, sludge dewatering and post-treatment of sanitary landfill leachate.
format	Article
author	Lichtfouse, Eric Morin-Crini, Nadia Fourmentin, Marc Nascimento, Inara Oliveira Carmo do Queiroz, Luciano Matos Mohd Yuhyi, Mohd Tadza Picos-Corrales, Lorenzo A. Pei, Haiyan Wilson, Lee D. Crini, Grégorio
author_facet	Lichtfouse, Eric Morin-Crini, Nadia Fourmentin, Marc Nascimento, Inara Oliveira Carmo do Queiroz, Luciano Matos Mohd Yuhyi, Mohd Tadza Picos-Corrales, Lorenzo A. Pei, Haiyan Wilson, Lee D. Crini, Grégorio
author_sort	Lichtfouse, Eric
title	Chitosan for direct bioflocculation of wastewater
title_short	Chitosan for direct bioflocculation of wastewater
title_full	Chitosan for direct bioflocculation of wastewater
title_fullStr	Chitosan for direct bioflocculation of wastewater
title_full_unstemmed	Chitosan for direct bioflocculation of wastewater
title_sort	chitosan for direct bioflocculation of wastewater
publisher	Springer Nature
publishDate	2019
url	http://umpir.ump.edu.my/id/eprint/25606/1/Chitosan%20for%20direct%20bioflocculation%20of%20wastewater.pdf http://umpir.ump.edu.my/id/eprint/25606/ https://doi.org/10.1007/s10311-019-00900-1 https://doi.org/10.1007/s10311-019-00900-1
_version_	1643670044208529408
score	13.211869

Chitosan for direct bioflocculation of wastewater

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