棉浆废水色度的预处理试验研究  

Research on the pretreatment of chroma in the wastewater of cotton pulp

作　　者：王庆[1] 丁原红[1,2] 任洪强[1,2] 邵飞[1] 刘敏敏[1] 韩承辉[3] 

机构地区：[1]教育部水处理与水环境修复工程技术中心,江苏南京210093 [2]南京大学环境学院,江苏南京210093 [3]江苏广播电视大学,江苏南京210036

出　　处：《工业水处理》2011年第5期27-30,共4页Industrial Water Treatment

基　　金：江苏省高校自然科学研究项目(10KJB610009)

摘　　要：分别采用电解、电解+水解酸化、水解酸化+好氧、脱色絮凝+水解酸化+好氧工艺处理河北吉藁化纤有限公司的棉浆原液废水(COD、色度高达4 484 mg/L、1 250倍),并分别用MD-02脱色剂和次氯酸钠处理该公司污水处理厂的出水(COD、色度分别为611.2 mg/L、500倍)。试验结果表明:电解工艺可较大幅度地降低废水的色度,去除率达60%～72%;电解+水解工艺对色度的去除效果较为显著;常规的水解+好氧组合工艺对色度只有约23.2%的去除率,显示出常规生化处理对棉浆废水色度去除能力的局限性;脱色絮凝+水解+好氧组合工艺对棉浆原液废水的COD、色度去除效果非常明显,是较理想的预处理工艺。The processes,such as electrolysis,electrolysis-hydrolytic acidification,hydrolytic acidification-aerobic,decoloration flocculation-hydrolytic acidification-aerobic,have been used for treating the cotton pulp stock solution wastewater from Jigao Chemical Fibre Co.,Ltd.,whose COD is as high as 4 484 mg/L,and chroma 1 250 times.The effluent,whose COD is 611.2 mg/L and chroma 500 times,of the Wastewater Treatment Plant of the Company has been treated by MD-02 decoloring agent and sodium hypochlorite respectively.The experimental results show that electrolysis process can reduce the chroma of wastewater substantially and its removal rate reaches 60%-72%.Electrolysis-hydrolysis process has remarkable chroma removal effect.The chroma removal rate of the conventional hydrolysis-aerobic combined process is only 23.2%,indicating the limitation of chroma removal effect of conventional bio-chemical treatment on cotton pulp wastewater.The removal rates of COD and chroma of cotton pulp stock solution wastewater by decoloration flocculation-hydrolysis-aerobic combined process are very remarkable,being a comparatively ideal pretreatment process.

关 键 词：棉浆废水 脱色 电解 水解 好氧 

分 类 号：X703.1[环境科学与工程—环境工程]