盐度对DMBR处理养殖废水脱氮效能的影响  

Effect of Salinity to Nitrogen Removal in DMBR for Aquaculture Wastewater Treatment

作　　者：卢芳芳[1] 洪俊明[1] 尹娟[1] 薛秀玲[1] 

机构地区：[1]华侨大学化工学院,福建厦门361021

出　　处：《华侨大学学报（自然科学版）》2012年第3期300-303,共4页Journal of Huaqiao University(Natural Science)

基　　金：国家自然科学基金资助项目(51078157);福建省自然科学基金资助项目(2009J05124)

摘　　要：采用动态膜生物反应器(DMBR)处理养殖废水,考察盐度为0～3 000mg·L-1时动态膜生物反应器的脱氮效能.结果表明:DMBR对养殖废水的CODMn和NH3-N的去除效果保持稳定,分别为93%,87%左右;在盐度提高到1 000mg·L-1后,DMBR内反硝化速率明显提高,对NO3-N的去除率提高到97%,总氮去除率也达到94%.在盐度为0～3 000mg·L-1下,DMBR处理养殖废水的出水水质达到SC/T 9101-2007《淡水池塘养殖水排放要求》中的一级排放标准.CODMn and nitrogen removal efficiency from salt-bearing aquaculture wastewater were investigated at different salinity varying from 0 to 3 000 mg·L-1 using dynamic membrane bioreactor（DMBR）.The experimental results show that the removal rates of CODMn and NH3-N in DMBR kept stable,which are 91% and 87% respectively.When salinity is 1 000 mg·L-1,the denitrification rate is improved obviously,the removal rate of NO-3-N increases to 97% and total nitrogen removal rate reaches 94%.The effluent quality meet the first grade discharge standard of requirement for water discharge from freshwater aquaculture pond（SC/T 9101-2007）.

关 键 词：养殖废水 盐度 动态膜生物反应器 脱氮效能 

分 类 号：X703[环境科学与工程—环境工程]