水解——生物膜处理汽提后含硫废水试验研究

Treatment of Steam stripping Wastewater Containing Sulphide by Hydrolosis biofilm Process

对汽提后的炼油厂含硫废水进行了水解——两级好氧生物膜处理试验研究 ,结果表明 ,当总停留时间为 1 7h,进水 COD平均为 1 0 0 0～ 2 0 0 0 mg/L时 ,处理后出水 COD小于 2 0 0 mg/L,氨氮小于 4 0 mg/L,酚、硫化物也都低于国家排放标准。对工艺特点分析表明 :各段生物膜中含有不同的优势菌种 ,使整个工艺处理负荷高 。

Steam stripping wastewater containing sulfide is treated by hydrolosis biofilm process, and the character of the process is analysed. The results show that when the total retention time is 17 hours, COD, NH 3 N of effluent are less than 200mg/l and 40mg/l respectively, and phenol, sulphide of effluent all meet the national effluent standards. Each stage is composed of varied dominant microorganisms, and the whole system is stable with high loading.