臭氧催化氧化应用于污水处理厂提标改造的中试研究  

Pilot Scale Study on the Application of Ozone Catalytic Oxidation in the Upgrading and Reconstruction of Wastewater Treatment Plants

作　　者：刘碧武 Liu Biwu(Shanxi Transition Comprehensive Reconstruction Demonstration Zone Synthetic Biology Industry Investment and Development Co.,Ltd.,Shanxi,030100)

机构地区：[1]山西转型综改示范区合成生物产业投资开发有限公司,山西030100

出　　处：《当代化工研究》2022年第24期92-94,共3页Modern Chemical Research

摘　　要：随着全国各地提出接近甚至超过“准Ⅳ类”的污水排放标准,污水处理厂提标改造形势严峻。目前常规的生物氧化工艺已经不能满足深度处理的达标排放要求,臭氧催化氧化技术以其清洁无污染、氧化效率高、操作简单、稳定性好等优点得到广泛应用。本研究考察了臭氧直接氧化、臭氧投加量和催化剂种类等方面生化尾水COD去除效果的影响。得出在水力停留时间1h,臭氧投加量60mg/L,臭氧催化剂装填率30%,在优选的臭氧催化剂种类条件下,进水COD为50~60mg/L,产水COD能达到25mg/L以下,COD去除率在50%以上;臭氧催化氧化系统连续运行15天后稳定性良好,出水COD值高于《地表水环境质量标准》(GB3838—2002)中的Ⅳ类水标准。With the proposal of sewage discharge standards that are close to or even exceed the "quasi Class IV" all over the country, the situation of upgrading sewage treatment plants is severe. At present, the conventional biological oxidation process can no longer meet the standard discharge requirements of advanced treatment, and catalytic ozone oxidation technology has been widely used for its advantages of clean and pollutionfree, high oxidation efficiency, simple operation and good stability. In this study, the influences of direct ozone oxidation、ozone dosage and ozone catalyst type on COD removal effect of biochemical tail water were investigated. The results show that when the hydraulic retention time was 1h, the ozone dosage was 60 mg/L, and the ozone catalyst loading rate was 30%, under the optimal ozone catalyst type condition, the influent COD was 50~60 mg/L, the COD generation could reached below 25 mg/L, and the COD removal rate was above 50%;The ozone-catalyzed oxidation system had good stability after continuous operation for 15 days, and the effluent COD value was higher than the standard of Class Ⅳ water in "Surface Water Environmental Quality Standard"(GB3838-2002).

关 键 词：臭氧催化氧化 提标改造 准Ⅳ类 FENTON试剂氧化 臭氧催化剂 

分 类 号：X703[环境科学与工程—环境工程]