Advanced technology for more efficient treatment of algae-containing water is always needed. The feasibility of using diatomite for advanced treatment of algae-containing surface water and controlling algae removal process through zeta potential was investigated in this study. Results demonstrated that the addition of diatomite is advantageous due to reduction of the polyaluminium chloride (PAC) dose required for satisfactory treatment of Microcystis aeruginosa (MA) and zeta potential which can well reflect the MA removal efficiency. The zeta potential at optimum removal was measured and it was observed that when the zeta potential was reduced to the range of −14.4 mV and +3.53 mV, removal of MA and associated organic material was optimized. Process control using zeta potential is therefore a viable tool for algae removal by enhanced coagulation combining PAC with diatomite.
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Research Article|
April 01 2011
Enhanced coagulation for algae removal through the control of zeta potential with diatomite Available to Purchase
C. D. Wu;
1The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters, College of Environmental Science and Engineering, South China University of Technology, Guangzhou 510006, PR China
E-mail: [email protected]
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X. J. Xu;
X. J. Xu
1The Key Laboratory of Pollution Control and Ecosystem Restoration in Industry Clusters, College of Environmental Science and Engineering, South China University of Technology, Guangzhou 510006, PR China
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Q. Wang
Q. Wang
2College of Environmental Science and Engineering, Peking University, Beijing 100871, PR China
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Water Supply (2011) 11 (2): 159–165.
Article history
Received:
November 17 2010
Accepted:
February 14 2011
Citation
C. D. Wu, X. J. Xu, Q. Wang; Enhanced coagulation for algae removal through the control of zeta potential with diatomite. Water Supply 1 April 2011; 11 (2): 159–165. doi: https://doi.org/10.2166/ws.2011.030
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