电絮凝在煤化工废水预处理中的脱除氨氮实验研究  

Experimental Study on Removal of Ammonia Nitrogen in Coal Chemical Industry Wastewater by Electrocoagulation

作　　者：房平[1] 邵瑞华[1] 

机构地区：[1]西安工程大学环境与化学工程学院,陕西西安710048

出　　处：《广东化工》2014年第8期187-188,共2页Guangdong Chemical Industry

基　　金：纺织工业联合会指导性计划项目(2013036);西安工程大学博士科研启动基金(BS1203)

摘　　要：通过采用电絮凝法处理煤化工企业的废水,研究了电流密度,Cl离子浓度,初始pH,极板间距等因素对去除氨氮效果的影响。结果表明,氨氮去除率随电流密度的增大而增加,随极板间距的增大而减小,且在中性和弱碱性,一定氯离子浓度环境下氨氮去除效果较好。本实验的最佳参数为pH 7.0,电流密度为60 mA/cm2,极板间距为1.0 cm,氯离子浓度为0.7 mol/L。By means of electric flocculation to treat the waste water of coal chemical enterprise, and to study the effects of factors on the removal of ammonia nitrogen, which contain the density of current, chloride ion concentration, the initial pH value and the spacing of plates, etc. The results showed that the anunonia nitrogen removal rate increases with the increase of current density, decreases with the increase of plate spacing, and ammonia nitrogen removal efficiency is better in neutral and weak alkaline environment within a stable concentration of the chloride ion. The experiment indicated that the best parameter is pH value tbr 7.0, current density for 60 mA/cm2, plate spacing is 1.0 cm and the chloride ion concentration is 0.7 moFL.

关 键 词：电絮凝 煤化工 氨氮 

分 类 号：X703[环境科学与工程—环境工程]