The Effect of Killing Algae with Chlorine Dioxide and Reaction Kinetics

Shao Xiu Li; De Jun Zhao; Wen Qin Xia; Xiu Li Yuan; Bao Hong Xie

doi:10.4028/www.scientific.net/AMM.295-298.1398

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 295-298The Effect of Killing Algae with Chlorine Dioxide...

The Effect of Killing Algae with Chlorine Dioxide and Reaction Kinetics

Abstract:

The effects of killing Chlamydomonas, Microcystis Aeruginosa, Cylindrospermopsis, Chlorella and Tetraedron by chlorine dioxide were studied. The reaction orders and rate constants of algae oxidated by chlorine dioxide were determined. The results show that these algae can be killed effectively by chlorine dioxide in raw water. the efficiencies of killing Microcystis Aeruginosa, Tetraedron and Cylindrospermopsis are 89.44%～92.48% during 10 to 15 Minutes. The efficiency of killing Chlamydomonas is high to 98.26%, but the efficiency of killing Chlorella is low, only 60.90%. The reaction orders for various algae are different. The reaction orders of Chlamydomonas, Microcystis Aeruginosa, Cylindrospermopsis, Chlorella and Tetraedron are 1.3, 2, 2.5, 6 and 2, respectively. The apparent rate constants are 2.1×10^-3 μg^-0.3L ^0.3s^-1, 5.6×10^-3μg^-1Ls ^-1, 8.3×10^-4μg ^-1.5L ^1.5s ^-1, 1.0×10^-5μg ^-5 L⁵s ^-1 and 3.8×10^-3 μg ^-1Ls ^-1 , respectively.

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Periodical:

Applied Mechanics and Materials (Volumes 295-298)

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1398-1401

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https://doi.org/10.4028/www.scientific.net/AMM.295-298.1398

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February 2013

Authors:

Shao Xiu Li, De Jun Zhao, Wen Qin Xia, Xiu Li Yuan, Bao Hong Xie

Keywords:

Algae, Chlorine Dioxide, Reaction Kinetics

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