Chemical Oxygen Demand Removal Efficiency and Limited Factors Study of Aminosilicone Polymers in a Water Emulsion by Iron-Carbon Micro-Electrolysis

被引：10
作者：
Yang, Shangyuan
Liang, Zhiwei
Yu, Huadong
Wang, Yunlong
Chen, Yingxu
机构：
来源：
WATER ENVIRONMENT RESEARCH | 2014年 / 86卷 / 02期
关键词：
aminosilicone emulsion; COD removal efficiency; micro-electrolysis; oxidation action; adsorption action; ZERO-VALENT IRON; WASTE-WATER; ACTIVATED CARBON; AZO-DYE; DEGRADATION; POLYDIMETHYLSILOXANES; MICROELECTROLYSIS; CHEMISTRY; SILICONES; OXIDATION;
D O I：
10.2175/106143013X13596524516509
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ; 0830 ;
摘要：
Micro-electrolysis was applied in the present study to investigate the effect of pH, iron-carbon mass ratio, contact time, and treatment batch on the removal efficiency of chemical oxygen demand (COD) within an aminosilicone emulsion. The results exhibited that the removal efficiency of COD decreased linearly with the batch increase, and this tendency was consistent under the various conditions. The adsorption of activated carbons contributes a large portion to the elimination of COD within the aminosilicone emulsion. The oxidation action of iron-carbon micro-electrolysis was proven and the aminosilicone emulsion's COD removal contribution was approximately 16%. Aminosilicone polymers were adsorbed on the surface of activated carbons and iron chips, which contributes to the decline of COD removal efficiency and limits the contribution of oxidation action.
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页码：156 / 162
页数：7
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