PILOT RESEARCH ON UASB-CASS REFORM PROCESS WITH MBR FOR TREATMENT OF BINARY ACID WASTEWATER

Abstract

介绍了直链二元酸废水原有处理系统运行情况及使用MBR改造工艺的启动以及在无排泥情况下的8种运行工况。通过比较分析,确定污泥浓度控制在7000~9700mg/L、溶解氧为2~3mg/L时,HRT可缩短至2d,MBR工艺出水水质稳定良好,COD、NH4+-N均值分别为79mg/L和1.6mg/L,优于污水综合排放标准(GB8978-1996)的二级排放标准。In this paper is introduced the operating condition of the original UASB-CASS for treating linear binary acid wastewater, and eight operating conditions of its reform process with MBR in case of starting and non-sludge discharging. Through analysis and comparison, it is shown that, when sludge concentration was 7000~9700mg/L,DO was 2~3mg/L,HRT can be shorten to 2 d, the effluent quality of MBR is better,COD,NH4+-N average values are 79 mg/L and 1.6 mg/L respectively, being superior to the second class discharging standard of "Sewage Comprehensive Discharging Standard"(GB8978-1996)

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