Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
6586469 | Chemical Engineering Journal | 2014 | 6 Pages |
Abstract
Bench scale tests were conducted to study the effect of potassium ferrate (VI) on cell integrity, intracellular organic matter release and disinfection by-products formation of Microcystis aeruginosa. The simulated algal suspension was prepared a concentration of 1.0Â ÃÂ 106Â cells/mL and the cytoplasmic membrane integrity was measured with flow cytometry. Results showed that a quick inactivation was achieved after ferrate (VI) oxidation, although no obvious cell lysis was observed. Intracellular organic matter (IOM) release increased with ferrate (VI) dosage and contributed to the formation of trihalomethanes (THM) and haloacetic acids (HAA) as chlorination by-products. However, enhanced coagulation of ferrate (VI) significantly removed M. aeruginosa cells and decreased the algal organic matters (AOMs). Furthermore, the concentrations of THM and HAA were reduced by 71.1% and 67.1%, respectively. Consequently, this study demonstrated potassium ferrate (VI) could act as a dual-functional chemical reagent (i.e., oxidant and coagulant) and may be potentially used in addressing the algal-rich drinking water.
Keywords
Related Topics
Physical Sciences and Engineering
Chemical Engineering
Chemical Engineering (General)
Authors
Shiqing Zhou, Yisheng Shao, Naiyun Gao, Shumin Zhu, Lei Li, Jing Deng, Minqiu Zhu,