固定化微生物增强A/O工艺处理煤化工高氨氮废水的中试研究

PILOT STUDY ON COAL CHEMICAL OF HIGH NITROGENOUS WASTEWATER USING IMMOBILIZED ENHANCED A/O PROCESS

对改性聚氨酯填料生物反应器进行了去除有机污染物和氨氮的中试研究,结果表明,当填料投加率为30%时,水力停留时间为40 h,中试试验进水COD为200～1 000 mg.L-1,NH3-N质量浓度为200～350 mg.L-1时,出水达到南水北调沿线水污染物综合排放标准(DB 37/599-2006)重点保护区域标准,即COD<50 mg.L-1,NH3-N质量浓度<5 mg.L-1。

Modified polyurethane filling a bioreactor to remove organic pollutants and ammonia nitrogen in the pilot study. The results showed that at hydraulic retention time of 40 hours with 30% suspended carrier, the effluent concentrations of COD and NH3-N were less than 50 mg-L-1 and 5 mg·L-1 respectively under the influent COD,NH3-N concentrations of 200-100 mg ·L-1, 200 -350 mg·L-1, effluent can meet the south along the water pollutant discharge standards （DB 37/599--2006） regional standards for protection.