水解(酸化)-缺氧-好氧固定床生物膜系统处理焦化废水的试验研究

用内填ＹＤＴ弹性立体填料的水解（酸化）－缺氧－好氧固定床生物膜系统焦化废水。结果：当进水ＣＯＤ和ＮＨ３－Ｎ浓度分别为１０６５ｍｇ／Ｌ和２５３ｍｇ／Ｌ，系统水力停留时间（ＨＲＴ）为３３．５ｈ，混合液回流比为３．６时，出水ＣＯＤ约为１８０ｍｇ／Ｌ，ＮＨ３－Ｎ为５ｍｇ／Ｌ，ＣＯＤ和ＮＨ３－Ｎ的去除率分别达８３％和９８％。

Study on the Acid Hydrolysis-Anaerobic-Aerobic Fixed Bio film System for the Treatment of Wastewater from Coking Plant

An acid hydrolysis- anaerobic-aerobic fixed biofilm system filled with a YDT elasto-steric pocking was used to treat wastewater from coking plant. The results show that when the system was operated with an influent in which the concentrations of COD and NH₃-N were 1065 mg/L and 253 mg/L respectively, a total hydraulic residence time (HRT) of 33.5 h, and a mixed liquor recirculating ratio of 3.6, then there was an effluent with a COD concentration of about 180 mg/L and a NH₃-N concentration of 5 mg/L, namely that the removals of COD and NH₃-N were up to 83% and 98%, respectively.