氧化混凝—生物铁法—二段生物接触氧化法处理环氧树脂废水的研究  

Experimental Studies on the Treatment of Epoxy Resin Wastewater by Oxidation and Coagulation,Bioferric Process,and Two-stage Biological Contact Oxidation

作　　者：左红影 甘文杰 程汉林 

机构地区：[1]广州环发环保工程有限公司,广州510180

出　　处：《广州化工》2004年第3期20-24,19,共6页GuangZhou Chemical Industry

摘　　要：采用氧化混凝 -生物铁法 -二段生物接触氧化法处理CODcr380 0～ 10 0 0 0mg/L、Cl-浓度 2 %～ 2 5 %的高浓度高盐分环氧树脂混合废水。研究表明 :采用氧化混凝预处理 ,分步投加硫酸亚铁 ,当第一次投加 2 5 0mg/L ,第二投加12 0 0mg/L时 ,CODcr去除率达 35 %～ 6 0 % ,废水CODcr降为 2 5 0 0～ 4 0 0 0mg/L ;在生物铁反应器污泥负荷达 1 7kgCODcr/(kgMLSS·d)时 ,CODcr去除率 81 0 % ;当二段生物接触氧化法水力停留时间 10h时 ,CODcr去除率达 87 6 % ,最终出水CODcr降至 10 0mg/L以下 ,达到GB8978一级排放标准。The oxidation and coagulation, bioferric process, and two-stage biological contact oxidation had been used to treat high concentration and high salt epoxy resin wastewater with 2.0 %～2.5 %Cl- contact, and CODcr3800-10000 mg/L. The results show using the oxidation and coagulation pretreatment for the first adding 250 mg/L dosage of ferrous sulfate and the second 1200 mg/L, the CODcr fell to 2500～4000 mg/L and the removal can reach 35 %～60 %. Giving 1.7 kgCODcr/(kgMLSS·d) activated sludge load, the CODcr removal of the bioferric process can reach 81.0 %. When the HRT of two-stage biological contact oxidation is ten hours, the CODcr removal can reach 87.6 %, and the last effluent CODcr can decline bellow 100 mg/L, meeting the first-level discharged criteria in GB8978.

关 键 词：生物接触氧化法 CODCR去除率 废水 混凝 污泥负荷 水力停留时间 MLSS 铁法 环氧树脂 投加 

分 类 号：TQ224.122[化学工程—有机化工] X703[环境科学与工程—环境工程]