Enhanced biological nutrient removal using MUCT-MBR system

被引：54

作者：

Zhang, Hanmin ^{[1
]}

Wang, Xiaolin ^{[1
]}

Xiao, Jingni ^{[2
,3
]}

Yang, Fenglin ^{[1
]}

Zhang, Jie ^{[1
]}

机构：

[1] Dalian Univ Technol, Sch Environm & Biol Sci & Technol, MOE, Key Lab Ind Ecol & Environm Engn, Dalian 116024, Peoples R China

[2] Dalian Fisheries Univ, Coll Marine Environm Engn, Dalian 116023, Peoples R China

[3] Key Lab Nearshore Marine Environm Res, Dalian 116023, Peoples R China

来源：

BIORESOURCE TECHNOLOGY | 2009年 / 100卷 / 03期

关键词：

Membrane bioreactor; Denitrifying phosphorus removal; Short-cut nitrification; Simultaneous nitrification and denitrification (SND); DENITRIFYING PHOSPHORUS REMOVAL; ANOXIC PHOSPHATE-UPTAKE; NITROGEN REMOVAL; WASTE-WATER; SLUDGE; NITRIFICATION;

D O I：

10.1016/j.biortech.2008.07.045

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Biological nutrient removal was investigated in a combined modified University of Cape Town and membrane bioreactor system. When the influent nutrient mass ratio (COD/TN/TP) was 28.5/5.1/1 to 28.5/7.2/1, average removal efficiencies of COD, TN and TP were 90%, 81.6%. 75.2%. Obvious denitrifying phosphorus removal occurred with C/N ratio 3.98. When nitrite was the main electron acceptor, the ratio of denitrifying phosphate uptake to the total phosphate uptake were 99.8% and the sludge yield was 0.28 kg VSS/kg COD; when nitrate was the main electron acceptor, the ratio was 92% and the yield was 0.32 kg VSS/kg COD. In case of nitrite, the system not only kept TP and TN removal at 89.1% and 82.2%, but also ensured less sludge production. Batch tests showed that the proportion of denitrifying phosphorus-accumulating organisms in the total phosphorus-accumulating organisms in the system was higher than 80%. (c) 2008 Elsevier Ltd. All rights reserved.

引用

页码：1048 / 1054

页数：7

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