共 11 条
- [11] 1991, SWEDISH STANDARDS CO
DENITRIFICATION IN A NONNITRIFYING ACTIVATED-SLUDGE SYSTEM
被引：16
作者：
LYNGA, A
BALMER, P
机构：
关键词：
DENITRICATION;
NITROGEN REMOVAL;
ACTIVATED SLUDGE;
HIGH-RATE PROCESS;
PILOT PLANT;
D O I：
10.2166/wst.1992.0551
中图分类号：
X [环境科学、安全科学];
学科分类号：
08 ;
0830 ;
摘要：
Post-nitrification and recycling of the nitrified effluent to an anoxic zone in an activated sludge system for denitrification is proposed as a potentially cost-effective method for nitrogen removal in existing activated sludge treatment plants. Denitrification in a non-nitrifying activated sludge system with a SRT of 3-4 days has been studied in pilot scale. The results show that denitrification rates of at least 10 g NO3-N/(kgVSS h) can be achieved. At COD/NO3-N ratios above 15, nitrate supply appears to control the denitrification rate while at COD/NO3-N ratios below 15 the rate appears to be controlled by the supply of easily biodegradable organic matter.
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页码：1097 / 1104
页数：8
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