SG反硝化菌对硝酸蒸馏尾液的脱氮性能  

Study of Nitrogen Removing Performance of Distillation Residue of Nitric Acid by Using SG Denitrifying Bacteria

作　　者：杨玲芳 朱国彪[2] 

机构地区：[1]常州海鸥水处理有限公司微生物研究开发部,江苏常州213145 [2]常州大学江苏省精细石油化工重点实验室,江苏常州213164

出　　处：《常州大学学报（自然科学版）》2012年第1期47-50,共4页Journal of Changzhou University：Natural Science Edition

摘　　要：以硝酸蒸馏尾液为研究对象,考察了SG反硝化菌在A/O系统中的脱氮效果。研究结果表明:在进水pH为0.36、反应温度30℃、C、N质量比为3.0、反硝化停留时间为35h,SG反硝化菌种投加量为5mL/L、氢氧化钠投加量为1.8g/L的实验条件下,装置连续运行30d,硝酸蒸馏尾液TN去除率达99%,ρ(出水TN)≤40mg/L,达到国标新排放标准。The efficiency of nitrogen removal from distillation residue of nitric acid was investigated by using SG denitrifying bacteria in A / O system.The results show that when the experimental conditions are ： pH in feedstock stream at 0.36,reaction temperature at 30℃,C,N mass ratio of 3.0,residence time of denitrifying for 35h,adding amount of SG denitrifying bacteria 5mL / L,adding dosage of sodium hydroxide 1.8g / L and continuous operation of the unit for 30d,the total nitrogen removed reaches 99%in the distillation residue of nitric acid and the total nitrogen in the effluent stream is not more than 40mg / L,which meets the newest international discharge standard.

关 键 词：硝酸蒸馏尾液 SG反硝化菌 脱氮 去除率 

分 类 号：TQ085[化学工程]