摘要
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。
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 infl uent COD is stable at 1 200-1 600 mg/L,the effl uent COD is lower than 300 mg/L with 80% of removal rate;when the infl uent ρ（organic nitrogen） is 100-160 mg/L,the effl uent 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 nitrifi cation stage,when the infl uent ρ（ammonia nitrogen） is less than 300 mg/L, the effl uent ρ（ammonia nitrogen） is below 15 mg/L with more than 90% of removal rate;During the denitrifi cation stage,the removal rate of nitrite nitrogen is above 98%,the fi nal effl uent COD is less than 80 mg/L and the ρ（total nitrogen） is less than 25 mg/L.
出处
《化工环保》
CAS
CSCD
北大核心
2014年第4期336-339,共4页
Environmental Protection of Chemical Industry
关键词
生物处理
有机胺废水
分子筛催化剂
硝化
反硝化
bio-treatment
organic amine wastewater
molecular sieve catalyst
nitrification
denitrifi cation
