DENITRIFICATION IN A NONNITRIFYING ACTIVATED-SLUDGE SYSTEM

被引：16
作者：
LYNGA, A
BALMER, P
机构：
来源：
WATER SCIENCE AND TECHNOLOGY | 1992年 / 26卷 / 5-6期
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.
引用
收藏
页码：1097 / 1104
页数：8
相关论文
共 11 条
[1]  
BAILEY WF, 1988, WATER SCI TECHNOL, V20, P303
[2]   HIGH-RATE DENITRIFICATION OF CONCENTRATED NITRATE WASTE-WATER [J].
BODE, H ;
SEYFRIED, CF ;
KRAFT, A .
WATER SCIENCE AND TECHNOLOGY, 1987, 19 (1-2) :163-174
[3]   TERTIARY ROTATING BIOLOGICAL CONTACTORS FOR NITRIFICATION [J].
BOLLER, M ;
GUJER, W ;
NYHUIS, G .
WATER SCIENCE AND TECHNOLOGY, 1990, 22 (1-2) :89-100
[4]  
HENZE M, 1982, GWF WASSER ABWASSER, V123, P240
[5]   INVESTIGATIONS OF SECONDARY SETTLING AT A LARGE TREATMENT-PLANT [J].
LUMLEY, DJ ;
BALMER, P ;
ADAMSSON, J .
WATER SCIENCE AND TECHNOLOGY, 1988, 20 (4-5) :133-142
[6]  
MULBERGER C, 1971, J WAT POLL CONTR FED, V43, P2059
[7]   TERTIARY NITRIFICATION PILOT PLANTS ON PARISIAN WASTE-WATER [J].
PAFFONI, C ;
VEDRY, B ;
GOUSAILLES, M .
WATER SCIENCE AND TECHNOLOGY, 1990, 22 (1-2) :347-352
[8]  
PARKER D, 1989, J WATER POLLUT CON F, V61, P618
[9]  
WEEDLE C, 1971, WATER RES, V5, P621
[10]  
1989, APHA AWWA WPCF
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