铁碳微电解法预处理湿法腈纶废水试验研究  

Test on Pretreatment of Wet-spun Acrylic Fibre Wastewater by Fe-C Microelectrolysis Process

作　　者：崔晓宇[1,2] 曾萍[1,2] 田智勇[1,2] 宋永会[1,2] 单永平[1,2] 肖书虎[1,2] 

机构地区：[1]中国环境科学研究院城市水环境科技创新基地,北京100012 [2]中国环境科学研究院,环境基准与风险评估国家重点实验室,北京100012

出　　处：《环境工程技术学报》2014年第3期187-191,共5页Journal of Environmental Engineering Technology

基　　金：国家水体污染控制与治理科技重大专项(2012ZX07202-002;2012ZX07202-005)

摘　　要：采用铁碳微电解工艺对湿法腈纶废水进行预处理试验。通过单因素试验确定了铁屑、活性炭投加量及反应时间等因素对处理效果的影响。结果表明,采用铁碳微电解工艺处理初始CODCr为1 076 mgL,CN-浓度为5.50mgL的湿法腈纶废水,当铁碳微电解反应中铁屑和活性炭投加量均为35 gL,反应时间为90 min,初始pH为4.50时,废水中CODCr的去除率在36.0%以上,CN-的去除率超过90%;废水BOD5CODCr由0.39提高到0.56,废水可生化性显著提高。Wet-spun acrylic fibre wastewater was pretreated by Fe-C microelectrolysis reactor process. The effects of iron dosage, active carbon dosage and reaction time on the pretreatment results were investigated by single factor experiments. The results showed that the wet-spun acrylic fibre wastewater with initial CODCr of 1 076 mg/L, CN- of 5.50 mg/L could be effectively pretreated by Fe-C microelectrolysis process. The CODCr removal efficiency reached above 36.0%, while CN- removal efficiency reached higher than 90 % under the conditions of both iron and activated carbon dosages 35 g/L, reaction time 90 min, pH 4.50. The process was effective and easy to control. The BOD5/CODCr ratio was increased from 0.39 to 0.56, so the biodegradability of wastewater was increased significantly.

关 键 词：铁碳微电解 腈纶废水 预处理 

分 类 号：X703.1[环境科学与工程—环境工程]