活性污泥法处理TMP废水的研究

介绍了活性污泥法处理TMP废水的试验,研究水力停留时间(HRT)、污泥年龄(0)和污泥有机负荷(F/M)等参数对COD、BOD_5和RFA的去除率及污泥特性的影响。讨论了活性污泥处理法试验的工艺条件编制程序。

Activated Sludge Treatment of TMP Effluent

The activated sludge treatment of TMP effluent was studied. Effects of hydraulic retention time (HRT) , sludge age (0) and food to microorganism (F/M) on the removals of COD, BOD5 and RFA, as well as settling characteristics of sludge were investigated. Results indicated that this treatment can elimanite 78-82. 9% of COD, 95. 6-97. 5% of BODs and 96. 0-99. 5% of RFA, under the conditions of avarage 5290mg/l of COD in the influent; 12-24 hours of HRT; 5-10 days of 0 and F/M <0. 77. The sludge volume indexes obtained are low and range from 100-160 ml/g.Main design parameters calculated from data processing of experimental results are as follows;K = 0. 01, a = 0. 43, b=0. 03, a' = 0. 53, b' = 0. 08.This paper emphatically discussed how to establish the technological conditions of experiment for an activated sludge process, according to the defination of sludge age (0).The acute toxicity to fish of the effluent studied was determined. It indicated that no one of the tested fish died during a 96-hour exposure to a 50% (V/V) concentration of the treated effluent.