当前位置: X-MOL 学术Water Environ. J. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Upgrading municipal lagoons in temperate and cold climates: Total nitrogen removal and phosphorus assimilation at ultra-low temperatures
Water and Environment Journal ( IF 1.7 ) Pub Date : 2021-05-24 , DOI: 10.1111/wej.12736
Patrick M. D’Aoust 1 , Simon Vincent 2 , Guillaume LeBlond 1 , Raheleh Arabgol 1 , Richard Hérard 1 , Warsama Ahmed 1 , Stéphanie Guilherme 1 , Chris Kinsley 1 , Robert Delatolla 1
Affiliation  

In this study, a municipal lagoon with high wintertime effluent total ammonia nitrogen (TAN) concentrations was upgraded with a pilot-scale nitrifying-nitrifying-denitrifying (NIT-NIT-DENIT) moving bed biofilm reactor (MBBR) treatment train to characterize its effluent over wintertime operation, investigate the feasibility of upgrading lagoons to achieve substantial biological total nitrogen removal across ultra-low temperatures (0.6–3.0) and to investigate nitrification inhibition pathways in facultative lagoon systems at ultra-low temperatures. Throughout the study, it was observed that the system substantially reduced total nitrogen (TN) and total phosphorus (TP) effluent concentrations by an average of 69.8 ± 24.5% and 74.7 ± 20.1%, respectively. Furthermore, it was observed that sulfide toxicity may play an important role in the inhibition of nitrifying organisms in lagoons. Finally, the MBBR treatment technology has emerged as a suitable and sustainable upgrade technology for existing lagoon and waste stabilization pond facilities operating in temperate, northern and cold climate countries.

中文翻译:

温带和寒冷气候下的市政泻湖升级:超低温下的总氮去除和磷同化

在这项研究中,使用中试规模的硝化-硝化-反硝化 (NIT-NIT-DENIT) 移动床生物膜反应器 (MBBR) 处理系列对冬季出水总氨氮 (TAN) 浓度较高的市政泻湖进行升级,以表征其出水在冬季运行期间,研究升级泻湖以在超低温(0.6-3.0)下实现大量生物总氮去除的可行性,并研究在超低温下兼性泻湖系统中的硝化抑制途径。在整个研究过程中,观察到该系统显着降低了总氮 (TN) 和总磷 (TP) 流出物浓度,平均分别降低了 69.8 ± 24.5% 和 74.7 ± 20.1%。此外,据观察,硫化物毒性可能在抑制泻湖中的硝化生物方面发挥重要作用。最后,MBBR 处理技术已成为适用于温带、北部和寒冷气候国家现有泻湖和废物稳定池设施的可持续升级技术。
更新日期:2021-05-24
down
wechat
bug