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Phylogenetic characterization of the nitrifying populations in municipal wastewaters and in biological treatment systems for modeling and bio-augmentation

Phylogenetic characterization of the nitrifying populations in municipal wastewaters and in biological treatment systems for modeling and bio-augmentation
城市废水和生物处理系统中硝化种群的系统发育特征，用于建模和生物增强
批准号：
459259-2013
负责人：
Frigon, Dominic
金额：
$2.9万
依托单位：
McGill University
依托单位国家：
加拿大
项目类别：
Collaborative Research and Development Grants
财政年份：
2014
资助国家：
加拿大
项目状态：
已结题
起止时间：
2014-01-01 至 2015-12-31
来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=555526
关键词：
Phylogeneticcharacterizationnitrifyingpopulationsmunicipal

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英文摘要
New regulations tightening the discharge of ammonia from municipal wastewater treatment systems require a year-round good performance of the nitrification process (which removes ammonia by converting to nitrate). It is well know that this process has reduced efficiencies at lower temperatures (<10°C), which forces designers to increase the size of activated sludge wastewater treatment plants and leads to higher construction as well as operation and maintenance costs. Up until now, it has been common practice to assume for design purposes that the influent does not contain any nitrifying microorganisms. This conservative assumption may lead to overdesigning facilities. However, this assumption was never properly investigated.
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