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Effect on Microcystis Aeruginosa Inactivation by Manganese Copper Composited Algaecide

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4 Author(s)
Zhao Liang ; Key Lab. of Beijing for Water Quality Sci. & Water Environ. Recovery Eng., Beijing Univ. of Technol., Beijing, China ; Li Xing ; Liang Shuang ; Yang Yan-Ling

Manganese copper composited algaecide (MCC) was prepared by permanganate and acid-soluble copper chloride. The effectiveness of MCC on Microcystis aeruginosa removal and the effective period of MCC were studied, pH influence on the water sample was inspected, and the feasibility of MCC as a new algaecide was discussed. The results showed that inactivation effect on Microcystis aeruginosa by MCC was obvious. Optimum ratio of copper reagent A and manganese reagents B was 0.5-1.5:1. Removal rate of turbidity, OD420 and chlorophyll a were 67.82%, 77.98% and 97.04% respectively during 10 days of MCC dosing. MCC is a long effective period algaecide. Turbidity and chlorophyll a were reduced to 6.16NTU and 1.048 mug ldr L-1 , with removal rate of 77.4%> and 99.48% after MCC dosing of 16 days. Ph value of water samples was reduced with increased ratio of copper reagent within MCC. When composited ratio is 0.5-1.5: 1 pH value is 7-8. This study laid the foundation for research and development of the new algaecide.

Published in:

Bioinformatics and Biomedical Engineering , 2009. ICBBE 2009. 3rd International Conference on

Date of Conference:

11-13 June 2009

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