摘要
通过使用硝化细菌培养液挂膜,用生物接触氧化法对生活污水处理厂出水以及富营养化河水中的氨氮进行了处理。试验结果表明:在很短的水力停留时间条件下(1h),污水厂出水经处理后NH_3-N全部达标并小于8mg/L,其去除率达70%;NO_2-N小于4mg/L。富营养化河水在HRT为1.2h时,出水NH_3-N与NO_2^--N均小于1mg/L。试验出水中的氮主要以NO_3^--N的形式存在。
Through using the nitrifying bacteria to make fixed film, this experiment used biological contact-oxidation to treat the effluent of domestic wastewater treatment plant and NH3-N in the eutrophication river water. The results indicated that under a short HRT condition (1h), NH3-N in the effluent could meet the standard, and the value was below 8mg/l. after treatment. The removal efficiency reached 70% and the value of NO2-N was below 4mg/l. When the HRT was 1.2h, both NH3-N and NO2-N in the effluent of eutrophication river water were below 1mg/l, and the main form of N was NO3--N.
出处
《上海环境科学》
CAS
CSCD
1999年第9期414-416,共3页
Shanghai Environmental Sciences
基金
上海市环保局科研项目(97-008)"高效低能耗污水处理技术及脱氮新技术开发研究"中的部分内容。
关键词
硝化细菌
氨氮
去除率
硝态氮
污水处理
Nifrifying bacteria NH3-N Removal efficiency NOx--N Volume load Temperature
