湿式催化过氧化氢法处理丙烯酸废水实验研究  

Study on Catalytic Wet Hydrogen Peroxide Oxidation for the Treatment of Acrylic Wastewater

作　　者：张博 陈荣珍 刘建春 崔盈贤 王洪福 ZHANG Bo;CHEN Rongzhen;LIU Jianchun;CUI Yingxian;WANG Hongfu(SANTACC Energy Co.,Ltd,Zhenjiang 212200,China)

机构地区：[1]长江三星能源科技股份有限公司,江苏镇汇212200

出　　处：《水处理技术》2020年第11期104-107,共4页Technology of Water Treatment

摘　　要：通过室内实验,研究了湿式催化过氧化氢法(CWPO)处理丙烯酸废水(COD为39.12 g/L)技术的可行性,确定了H2O2投加量、反应温度等工艺参数,并对其运行成本进行分析。结果分析表明,CWPO可有效处理丙烯酸废水,优化的处理条件为:双氧水(H2O2的质量分数30%)的体积分数14%,Fe3+的投加量21 mg/L,pH为4,温度为装置出水的100℃(即无需补充热源),反应时间1 h。在此条件下,处理后COD为11.65 g/L,COD去除率可达70.3%。与稀释生化方案相比,CWPO作为生化法预处理工艺时,在与稀释生化处理成本相当的情况下,废水处理量可增加441 t/d,显著增大了丙烯酸的产能。Technical feasibility of catalytic wet hydrogen peroxide oxidation(CWPO)for the treatment of acrylic wastewater(COD was 39.12 g/L)was studied through in-house laboratory investigation.The main process parameters such as the dosage of H2O2,reaction temperature were determined and operating cost was also analyzed.The results showed that CWPO was the effective treatment method for acrylic wastewater.The optimum treating conditions were confirmed which was the hydrogen peroxide volume fraction of 14%(mass fraction of H2O2 was 30%),the Fe3+dosage of 21 mg/L,pH of 4,the initial temperature of 100℃of the device effluent(no additional heat resource)and the reaction time of 1 h.Under this condition,COD was 11.65 g/L and the removal rate was 70.3%after treatment.Compared with diluted biochemical solution,when CWPO is used as a biochemical pretreatment process,the wastewater processing capacity can increase 441 t/d and significantly increasing the capacity of acrylic acid at the same operating cost with Dilution biochemical process.

关 键 词：丙烯酸废水 湿式催化过氧化氢法 双氧水 

分 类 号：X783[环境科学与工程—环境工程]