摘要
利用生物紊动床在低溶解氧 (DO)和有机物存在的条件下研究了氨氮的亚硝化、硝化和有机物氧化的规律 ,分析了异养菌与自养菌竞争的特点。试验结果表明 ,DO为 2～ 3mg/L、有机物浓度 (TOC)为 2 0 0mg/L、C/N =1∶1.5时对硝化作用影响不大 ;DO为 0 .5～ 1mg/L、TOC≥ 10 0mg/L、C/N =1∶3时硝化系统即受到破坏。
Study was made on nitrification and organic matter oxidation under the condition of low DO and existence of organics in biological turbulent bed reactor, and analysis was conducted on the competition between heterotrophic and autotrophic bacteria. The test results show that under the conditions of DO = 2～3 mg/L, TOC = 200 mg/L, and C/N = 1∶1.5, there is less impact on nitrification; However, nitrification system is destroyed with DO = 0.5～1 mg/L, TOC ≥100 mg/L and C/N =1∶3.
出处
《中国给水排水》
CAS
CSCD
北大核心
2002年第5期10-13,共4页
China Water & Wastewater
基金
国家自然科学基金资助项目 (5 98780 4 2 )
关键词
DO紊动床
有机物
硝化
生物处理
biological turbulent bed reactor
organic matters
nitrification
DO
