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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Sun, Feng Pei, Hai-Yan Ma, Chun-Xia Hu, Wen-Rong |
| Description | Author Affiliation: Pei HY ( School of Environmental Science and Engineering, Shandong University, Jinan 250100, China) |
| Abstract | This work aimed to study the effects of chitosan on cell integrity and extracellular microcystins (MCs) of Microcystis aeruginosa cells during flocculation and flocs storage processes. The impacts of chitosan addition, flocculation stirring and flocs storage time were comprehensively detected to prevent or reduce cell lysis and MCs release. Response surface method (RSM) was applied to optimize the chitosan flocculation. Under chitosan concentration 7.31 mg/L and optimized mechanical conditions, 99% of M. aeruginosa cells were integrated removed. Furthermore, amounts of extracellular MCs were adsorbed by chitosan polymers in this process. With chitosan flocs protect, though cells showed some damage, extracellular MCs concentration in flocculated samples lower than background level within first 2 d. However, lots of MCs release was observed after 4d which may result from chitosan degradation and cells lysis. Therefore, chitosan flocs should be treated within 2d to prevent the adsorbed MCs releasing again. |
| ISSN | 09608524 |
| Volume Number | 151 |
| e-ISSN | 18732976 |
| Journal | Bioresource Technology |
| Language | English |
| Publisher | Elsevier |
| Publisher Date | 2014-01-01 |
| Publisher Place | Great Britain (UK) |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Chitosan Pharmacology Extracellular Space Chemistry Microcystins Metabolism Microcystis Cytology Adsorption Analysis Of Variance Flocculation Drug Effects Reproducibility Of Results Surface Properties Time Factors Journal Article Research Support, Non-u.s. Gov't Discipline Bioresource |
| Content Type | Text |
| Resource Type | Article |
| Subject | Waste Management and Disposal Medicine Environmental Engineering Renewable Energy, Sustainability and the Environment Bioengineering |
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