多相催化湿式氧化法处理高浓度难降解有机废水的研究  

Treatment of High Concentration Recalcitrant Organic Wastewater by Multiphase Catalytic Wet Air Oxidation Process

作　　者：方宗堂[1] 王宏[1] 葛玮[1] 朱世云[1] 蔡伟民[1] 

机构地区：[1]上海交通大学环境科学与工程学院,上海200240

出　　处：《化工环保》2005年第1期8-11,共4页Environmental Protection of Chemical Industry

摘　　要：在高压反应釜内,采用自制颗粒贵金属催化剂催化湿式氧化法处理高浓度饲料抗氧化剂合成废水,探讨了温度、压力、进水pH等反应条件对废水处理效果的影响。在温度为220℃、总压为8MPa条件下,COD,TOC,TN和色度的去除率分别达到77.0%,66.1%,70.2%,91%;处理后的废水pH很低,催化剂显示出较好的耐酸性;随进水pH的增加,COD的去除率逐渐降低,出水pH增加。High concentration recalcitrant organic wastewater from the synthesis of feedstuff antioxidant was treated in an autoclave by catalytic wet air oxidation (CWAO) using self - prepared particle noble metal catalyst. The effects of several reaction conditions including temperature, pressure and influent pH on the treatment efficiency were explored. When the temperature is 220 ℃ and the total pressure is 8 MPa,the removal rates of COD,TOC, TN and chroma are 77% ,66.1% ,70. 2% and 91% respectively. The treated wastewater has very low pH and the catalyst has an excellent antacid characteristic. With the increase of influent pH,the removal rate of COD decreases and the effluent pH increases little by little.

关 键 词：催化湿式氧化 抗氧化剂 废水处理 

分 类 号：X703.1[环境科学与工程—环境工程]