环境工程学报2012,Vol.6Issue(4):1064-1068,5.
高氨氮污泥脱水液短程硝化反硝化的启动及稳定
Start up and maintenance of partial nitrification-denitrification of high strength ammonia sludge dewatering water
摘要
Abstract
High strength ammonia sludge dewatering water was treated by a A/O-CSTR process.The ammonia content was about 350 mg/L.The carbon source for denitrification was deficient due to the ratio of C/N was below 1.0.Ammonia of reject water was nitrified in A/O reactor and then reduced to nitrogen gas by denitrifiers in CSTR,with using primary sludge as additional carbon source.The start-up of partial nitrification was investigated.The effects of the effluent recycle on partial nitrification and nitrogen removal efficiency were also studied.The results shows that the system has a good performance in total nitrogen removal.The nitrite accumulate ratio was improved and maintained above 90%.The primary sludge were successful utilized as the carbon source for stable denitrification.The recycle of CSTR effluent benefited nitrogen removal efficiency.As the recycle ratio was 200%,total nitrogen removal efficiency was more than 85%.关键词
污泥脱水液/短程硝化/游离氨/游离亚硝酸/初沉污泥Key words
sludge dewatering water/short-cut nitrification/free ammonia/free nitric acid/primary sludge分类
资源环境引用本文复制引用
张亮,王淑莹,张树军,吴程程,甘一萍,孟春霖,彭永臻..高氨氮污泥脱水液短程硝化反硝化的启动及稳定[J].环境工程学报,2012,6(4):1064-1068,5.基金项目
基金项目:国家自然科学基金资助项目 ()
“十一五”国家科技支撑计划重点项目 ()