盐度对氨氮去除效果的影响  

Effect of salinity on the removal efficiency of ammonia nitrogen

作　　者：杨日光[1] 张兰河[2] 孙俊超[2] 王山山[2] 张海丰[2] 

机构地区：[1]东北电力大学科研产业处,吉林吉林132012 [2]东北电力大学化学工程学院,吉林吉林132012

出　　处：《东北电力大学学报》2013年第4期24-27,共4页Journal of Northeast Electric Power University

基　　金：吉林省科技发展计划项目(社会发展重点项目20110405;20120404);吉林省教育厅"十二五"科学技术研究项目(吉教科合字[2012]第95号);吉林市杰出青年基金项目(20106306);吉林市科技支撑社会发展计划项目(201232403)

摘　　要：研究采用序批式生物反应器(SBR)处理模拟含盐废水,在乙醇作为碳源的条件下,当DO为2-3 mg/L、温度为35±1℃、pH为7.5-8.5时,考察Na2SO4盐度对SBR工艺脱氮效果的影响。结果表明:SBR反应器经过30 d的驯化,活性污泥氨氮去除率高于90%;在其基础上,SBR反应器中添加Na2SO4,当Na2SO4盐度增加到12 g/L时,污泥系统的氨氮去除率降低至80%,亚硝态氮积累率达到90%。在一定盐度下可实现亚硝酸盐的积累,完成短程硝化反硝化。A continuous experiment was carried out using sequencing batch reactor process to treat wastewater containing saline. The effect of Na2 SO4 on the denitrification was investigated when alcohol was used as carbon source under the condition of dissolved oxygen （DO） of 2 -3 mg/L,35 ＋ 1 ℃ and pH 7.5 -8.5. The results showed that removal efficiency of ammonia nitrogen was higher than 90% after the domestication of 30 d, and then Na2SO4 was added to the SBR system. And furthermore,removal efficiency of ammonia nitrogen was decreased to 80% and accumulation efficiency of nitrite nitrogen was 90% when Na2SO4 salinity was increased to 12 g/L in the activated sludge system. Accumulation of nitrite nitrogen could be accomplished and short-cut nitrification and denitrification could be achieved under certain salinity.

关 键 词：盐度 SBR 氨氮 

分 类 号：TQ914.3[化学工程]