煤液化高浓度污水BAF法影响硝化反应的试验研究

Study on High Concentration Sewage of Coal Liquefaction by BAF Method Influencing Nitration Reaction's Experiment

煤直接液化过程中产生的高浓度污水,在开工期间,BAF生化法(生物滤池)处理氨氮效果不达标,直接制约了高浓度污水的全部回用。通过2个月对硝化菌的生存条件和生物硝化反应的4个主要影响因素的试验观察,研究出了煤液化高浓度污水生化法去除氨氮核心控制参数。使得困扰两年来的高浓度污水BAF生化法处理氨氮,达到了回用标准,为同类化工企业治理此类废水的难点和重点,提供了示范性可借鉴生产经验。

BAF biochemical(biological filter)ammonia treatment effect is not up to the expectations since high concentrations sewage generated in the process of coal direct liquefaction when it first comes into operation,which directly restricts all the high concentration sewage's recycle. Through the 2 months'experimental research on the four main influence factors of nitrifying bacteria living conditions and biological nitrification reaction,high concentration sewage biochemical method of coal liquefaction to remove ammonia nitrogen core control parameters is produced. Two years'problem which trouble people in the high concentration sewage using BAF biochemical treatment of ammonia nitrogen is up to standard,and provides model that can be used as reference for the production experience in the similar chemical enterprises to deal with the difficulties and keystones of sewages.