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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：
$2.68万
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：
2013
资助国家：
加拿大
项目状态：
已结题
起止时间：
2013-01-01 至 2014-12-31
来源：
https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=542213
关键词：
Phylogeneticcharacterizationnitrifyingpopulationsmunicipal

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中文摘要
翻译
新法规收紧了市政污水处理系统中氨的排放，要求硝化过程（通过转化为硝酸盐来去除氨）全年表现良好。众所周知，该工艺在较低温度（<10 °C）下会降低效率，这迫使设计人员增加活性污泥废水处理厂的规模，并导致更高的建设以及运营和维护成本。到目前为止，出于设计目的，通常的做法是假设流入物不含任何硝化微生物。这种保守的假设可能会导致设施的过度设计。然而，这一假设从未得到适当的调查。
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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