Rate determination and distribution of anammox activity in activated sludge treating swine wastewater

被引:35
|
作者
Waki, Miyoko [1 ]
Yasuda, Tomoko [1 ]
Suzuki, Kazuyoshi [1 ]
Sakai, Takahiro [2 ]
Suzuki, Naoto [3 ]
Suzuki, Ryoji [4 ]
Matsuba, Kenji [5 ]
Yokoyama, Hiroshi [1 ]
Ogino, Akifumi [1 ]
Tanaka, Yasuo [1 ]
Ueda, Shingo [6 ]
Takeuchi, Mio [7 ]
Yamagishi, Takao [7 ]
Suwa, Yuichi [7 ,8 ]
机构
[1] Natl Agr & Food Res Org, Natl Inst Livestock & Grassland Sci, Tsukuba, Ibaraki 3050901, Japan
[2] Saga Prefecture Livestock Expt Stn, Saga 8492305, Japan
[3] Okinawa Prefectural Livestock & Grassland Res Ctr, Okinawa 9050426, Japan
[4] Aichi Agr Res Ctr, Aichi 4801193, Japan
[5] Miyazaki Livestock Res Inst, Miyazaki 8891301, Japan
[6] Nihon Univ, Kanagawa 2528510, Japan
[7] Natl Inst Adv Ind Sci & Technol, Inst Environm Management Technol, Tsukuba, Ibaraki 3058569, Japan
[8] Chuo Univ, Tokyo 1128551, Japan
关键词
Anammox; Swine wastewater; Activated sludge; Tracer experiment; ANAEROBIC AMMONIUM OXIDATION; NITROGEN REMOVAL; ENRICHMENT; BACTERIA; REACTOR; INHIBITION; DEAMMONIFICATION; DIVERSITY; GENES;
D O I
10.1016/j.biortech.2009.10.081
中图分类号
S2 [农业工程];
学科分类号
0828 ;
摘要
This paper presents a quantitative investigation and analysis of anammox activity in sludge taken from biological swine wastewater treatment plants. An incubation experiment using a N-15 tracer technique showed anammox activity in sludge taken from 6 out of 13 plants with the rate ranging from 0.0036 mu mol-N-2/g-VSS/h to 3.1 mu mol-N-2/g-VSS/h, and in a biofilm with the highest activity at 25.8 mu mol-N-2/g-VSS/h. It is notable that 9 out of 11 sludges in which the pH was maintained between 6.6 and 8.1 retained anammox activity, while those with either a lower or higher pH did not. Moreover, anammox-positive sludge had a significantly higher concentration of NO2--N plus NO3--N than did anammox-negative sludge. A significant difference was not observed between anammox-positive and negative sludge regarding BOD/NH4+-N in the influent, DO concentration in aeration tanks, and the concentrations of NH4+-N, free nitric acid, and free ammonia. (C) 2009 Elsevier Ltd. All rights reserved.
引用
收藏
页码:2685 / 2690
页数:6
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