摘要
培养大量厌氧污泥污泥中含以氨为电子供体的反硝化细菌。将厌氧污泥包裹于布中,制成无数小球,悬挂在含好氧污泥的好氧反应器中。因小球粒度较大,溶解氧不易穿透,造成良好的缺氧、厌氧环境,好氧反硝化脱氮效果良好。脱氮速率达到8.8～12.4mg/L·h。当COD/N=2.3、DO=1.8～2.4mg/L、好氧污泥与厌氧污泥体积比为2∶1时脱氮效果较好。
Anaerobic sludge containing denitrifying bacteria was enclosed in many pieces of cloth and made into many little balls. These balls were hung in an aerobic reactor. Dissolved oxygen couldn't easily penetrate them, thus thay can offer better anaerobic conditions, and simultaneous nitrification and denitrificatiion via anaerobic ammonium oxidization can take place more easily than other methods. The nitrogen removal rate was up to 8.8-12.4mg/L·h. The nitrogen removal rate was the highest when the value of COD/N was 2.3 and dissolved oxygen was 1.8-2.4mg/L and the ratio between aerobic sludge to aerobic sludge was 2∶1.
出处
《水处理技术》
CAS
CSCD
北大核心
2003年第6期345-347,333,共4页
Technology of Water Treatment
基金
教育部"春晖计划"资助课题(教外司留99-95-31)
关键词
硝化
反硝化细菌
脱氮反应器
生物脱氮
厌氧氨氧化
biological denitrification
anaerobic ammonium oxidation
deritrifying bacteria
