分子筛催化剂生产废水的生物处理

采用氨化—硝化—反硝化三段联合生物工艺处理分子筛催化剂生产过程中产生的含有机胺废水。实验结果表明：在氨化过程中，当进水COD稳定为1 200~1 600 mg/L时，出水COD低于300 mg/L，COD去除率稳定在80%左右，当进水ρ（有机氮）为100~160 mg/L时，出水ρ（有机氮）均低于30 mg/L，有机氮去除率大于80%，在整个氨化过程中，出水ρ（氨氮）较进水ρ（氨氮）提高了35~200 mg/L;硝化过程中，当进水ρ（氨氮）小于等于300 mg/L时，出水ρ（氨氮）最终稳定在15 mg/L以内，氨氮去除率大于90%;在反硝化过程中，亚硝酸盐氮去除率基本稳定在98%以上，最终出水COD低于80 mg/L，出水ρ（总氮）低于25 mg/L。

Bio-treatment of Molecular Sieve Catalyst Production Wastewater

The organic amine-containing wastewater in production of molecular sieve catalyst was treated by the ammonification-nitrification-denitrification process. During the ammonification stage，when the influent COD is stable at 1 200-1 600 mg/L，the effluent COD is lower than 300 mg/L with 80% of removal rate;when the influent ρ(organic nitrogen) is 100-160 mg/L，the effluent ρ(organic nitrogen) is lower than 30 mg/L with above 80% of removal rate;The effluent ρ(ammonia nitrogen) is higher than the influent ρ(ammonia nitrogen) by 35-200 mg/L. During the nitrification stage，when the influent ρ(ammonia nitrogen) is less than 300 mg/L，the effluent ρ(ammonia nitrogen) is below 15 mg/L with more than 90% of removal rate;During the denitrification stage，the removal rate of nitrite nitrogen is above 98%，the final effluent COD is less than 80 mg/L and the ρ(total nitrogen) is less than 25 mg/L.