超临界水氧化法处理顺酐生产废水的工艺研究  

Study on the Treatment Process of Waste Water for Maleic Anhydride by Supercritical Water Oxidation Technique

作　　者：颜婉茹[1] 张艳[1] 杜青林[1] 

机构地区：[1]哈尔滨理工大学化学与环境工程学院,黑龙江哈尔滨150040

出　　处：《化学与生物工程》2007年第7期60-62,共3页Chemistry & Bioengineering

基　　金：黑龙江省教育厅科研项目(10541054)

摘　　要：探讨了超临界水氧化法处理顺酐生产废水的工艺条件,考察了反应温度、压力、流量等工艺参数对顺酐去除率的影响。结果表明,在没有氧化剂的情况下,超临界水中的氧化反应能有效去除水中的COD,反应温度、反应时间是重要的影响因素。当反应温度为400℃、反应压力为28 MPa、流量为5 mL.min时,废水的COD去除率为99.9%,出水达到GB8978-1996国家颁布的污水综合排放一级标准,可直接排放。The technological process of treating waste water for maleic anhydride is studied by supercritical water oxidation technique. The influences of reaction temperature, pressure and flow on removal rate of COD of waste water for maleic anhydride are investigated. The results show that supercritical water oxidation is efficient for the removal of COD in waste water without oxidant, and reaction time and temperature are the main influential factors. Under the optimum conditions of temperature 400℃, pressure 28 MPa and flow 5 mL·min^-1 , the removal rate of COD can achieve 99.9%. The treated waste water,which meets the require of integrated waste water discharge standard GB 8978-1996, can be directly discharged.

关 键 词：超临界水 氧化 顺酐生产废水 动力学 

分 类 号：X703[环境科学与工程—环境工程]