高浓度切削废液多元预处理工艺的影响研究  

Study on the Effect of Multiple Pretreatment Technology of High Concentrations of Cutting Waste Liquid

作　　者：秦树林[1] 

机构地区：[1]煤炭科学研究总院杭州环保研究院,浙江杭州311201

出　　处：《环境科学与技术》2013年第S1期177-179,222,共4页Environmental Science & Technology

基　　金：浙江省科技厅社会公益性技术应用研究计划项目(2010C33G3040004)

摘　　要：研究了不同条件下破乳絮凝沉淀与多元氧化预处理高浓度切削废液的降解效果。试验表明:采用破乳絮凝沉淀预处理,COD去除率为66.43%,采用破乳絮凝沉淀-多元微电解-催化氧化联合预处理工艺,在CaCl2投加量1 200 mg/L,微电解最佳pH 3.0,填充比1∶1,微电解2 h,催化氧化2 h,H2O2投加量2‰,出水COD平均去除率达到91.55%,是预处理该类废水的有效方法。High concentrations of cutting waste liquid by demulsification and flocculation or multiple oxidation pretreatment process under different conditions were investigated.The results are as follows: the COD average removal rate reached 66.43 % by demulsification and flocculation.Under the conditions of dosing of calcium chloride 1 200 mg/L,pH value of micro-elec trolysis 3.0,filling rate 1 ∶1,micro-electrolysis reaction time 120 min,catalytic oxidation time 120 min,hydrogen peroxide dosing 2‰,COD average removal rate COD reached 91.55%.The process is an ideal pretreatment method for high concentrations of cutting waste liquid.

关 键 词：切削废液 破乳 多元氧化预处理 

分 类 号：X703[环境科学与工程—环境工程]