期刊
MICROBIOLOGYOPEN
卷 5, 期 2, 页码 177-211出版社
WILEY
DOI: 10.1002/mbo3.334
关键词
Bioflocculants; chemical flocculants; environmental pollution; industrial applications; molecular biology
类别
资金
- National Research Foundation (NRF) of South Africa [89083]
- South Africa Medical Research Council
- South Africa-Norway Research Co-operation (SANCOOP)
- University of Fort Hare
Chemical flocculants are generally used in drinking water and wastewater treatment due to their efficacy and cost effectiveness. However, the question of their toxicity to human health and environmental pollution has been a major concern. In this article, we review the application of some chemical flocculants utilized in water treatment, and bioflocculants as a potential alternative to these chemical flocculants. To the best of our knowledge, there is no report in the literature that provides an up-to-date review of the relevant literature on both chemical flocculants and bioflocculants in one paper. As a result, this review paper comprehensively discussed the various chemical flocculants used in water treatment, including their advantages and disadvantages. It also gave insights into bioflocculants production, challenges, various factors influencing their flocculating efficiency and their industrial applications, as well as future research directions including improvement of bioflocculants yields and flocculating activity, and production of cation-independent bioflocculants. The molecular biology and synthesis of bioflocculants are also discussed.
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