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A review on development and application of plant-based bioflocculants and grafted bioflocculants

Lee, Chai Siah; Chong, Mei Fong; Robinson, John P.; Binner, Eleanor

Authors

Chai Siah Lee

Mei Fong Chong

John P. Robinson



Abstract

Flocculation is extensively employed for clarification through sedimentation. Application of eco-friendly plant-based bioflocculants in wastewater treatment has attracted significant attention lately with high removal capability in terms of solids, turbidity, color, and dye. However, moderate flocculating property and short shelf life restrict their development. To enhance the flocculating ability, natural polysaccharides derived from plants are chemically modified by inclusion of synthetic, nonbiodegradable monomers (e.g., acrylamide) onto their backbone to produce grafted bioflocculants. This review is aimed to provide an overview of the development and flocculating efficiencies of plant-based bioflocculants and grafted bioflocculants for the first time. Furthermore, the processing methods, flocculation mechanism, and the current challenges are discussed. All the reported studies about plant-derived bioflocculants are conducted under lab-scale conditions in wastewater treatment. Hence, the possibility to apply natural bioflocculants in food and beverage, mineral, paper and pulp, and oleo-chemical and biodiesel industries is discussed and evaluated.

Journal Article Type Article
Publication Date Dec 3, 2014
Journal Industrial and Engineering Chemisty Research
Electronic ISSN 0888-5885
Publisher American Chemical Society
Peer Reviewed Peer Reviewed
Volume 53
Issue 48
APA6 Citation Lee, C. S., Chong, M. F., Robinson, J. P., & Binner, E. (2014). A review on development and application of plant-based bioflocculants and grafted bioflocculants. Industrial && Engineering Chemistry Research, 53(48), doi:10.1021/ie5034045
DOI https://doi.org/10.1021/ie5034045
Publisher URL http://pubs.acs.org/doi/abs/10.1021/ie5034045
Copyright Statement Copyright information regarding this work can be found at the following address: http://eprints.nottingh.../end_user_agreement.pdf

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Copyright Statement
Copyright information regarding this work can be found at the following address: http://eprints.nottingham.ac.uk/end_user_agreement.pdf





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