Enhancement of algae ponds for rural domestic sewage treatment by prolonging daylight using artificial lamps

Algal ponds (APs) are widely used as treatment facilities for domestic sewage in sparsely populated rural areas. However, few AP studies have focused on daylight length to enhance pollutants removal. In this study, four algae ponds were set up, daylight was prolonged by 0, 2, 4, and 6 h with an illu...

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Autores principales:	Yuxuan Mao, Hongfang Tan, Kemei Wang, Yejian Zhang, Zhan Jin, Min Zhao, Yiqing Li, Xiangyong Zheng
Formato:	article
Lenguaje:	EN
Publicado:	Elsevier 2021
Materias:	Algae ponds Prolonging daylight Rural domestic sewage Microbial communities Environmental pollution TD172-193.5 Environmental sciences GE1-350
Acceso en línea:	https://doaj.org/article/ec73c735f89741b68f86c1c244214aa5
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spelling	oai:doaj.org-article:ec73c735f89741b68f86c1c244214aa52021-11-28T04:27:29ZEnhancement of algae ponds for rural domestic sewage treatment by prolonging daylight using artificial lamps0147-651310.1016/j.ecoenv.2021.113031https://doaj.org/article/ec73c735f89741b68f86c1c244214aa52021-12-01T00:00:00Zhttp://www.sciencedirect.com/science/article/pii/S014765132101143Xhttps://doaj.org/toc/0147-6513Algal ponds (APs) are widely used as treatment facilities for domestic sewage in sparsely populated rural areas. However, few AP studies have focused on daylight length to enhance pollutants removal. In this study, four algae ponds were set up, daylight was prolonged by 0, 2, 4, and 6 h with an illuminating intensity of 3000 lx. The highest removal efficiencies of total nitrogen, ammonium, and total phosphorus were 37.36%, 41.20%, and 21.56% due to the highest microbial abundance under optimum conditions (2 h PD), respectively. Excessive PD (4 h and 6 h) could inhibit the removal abilities. PD also increased the maximum relative electron transport rate of algae, leading to an increase in the photosynthetic capacity of APs. Meanwhile, the high microbial abundance indicates that chemoheterotrophic bacteria are the main influencing factor for the removal of nitrogen and phosphorus by the APs. Moreover, the system with PD using artificial lamps was proven to be feasible for engineering applications and potentially utilized in rural domestic wastewater treatment.Yuxuan MaoHongfang TanKemei WangYejian ZhangZhan JinMin ZhaoYiqing LiXiangyong ZhengElsevierarticleAlgae pondsProlonging daylightRural domestic sewageMicrobial communitiesEnvironmental pollutionTD172-193.5Environmental sciencesGE1-350ENEcotoxicology and Environmental Safety, Vol 228, Iss , Pp 113031- (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Algae ponds Prolonging daylight Rural domestic sewage Microbial communities Environmental pollution TD172-193.5 Environmental sciences GE1-350
spellingShingle	Algae ponds Prolonging daylight Rural domestic sewage Microbial communities Environmental pollution TD172-193.5 Environmental sciences GE1-350 Yuxuan Mao Hongfang Tan Kemei Wang Yejian Zhang Zhan Jin Min Zhao Yiqing Li Xiangyong Zheng Enhancement of algae ponds for rural domestic sewage treatment by prolonging daylight using artificial lamps
description	Algal ponds (APs) are widely used as treatment facilities for domestic sewage in sparsely populated rural areas. However, few AP studies have focused on daylight length to enhance pollutants removal. In this study, four algae ponds were set up, daylight was prolonged by 0, 2, 4, and 6 h with an illuminating intensity of 3000 lx. The highest removal efficiencies of total nitrogen, ammonium, and total phosphorus were 37.36%, 41.20%, and 21.56% due to the highest microbial abundance under optimum conditions (2 h PD), respectively. Excessive PD (4 h and 6 h) could inhibit the removal abilities. PD also increased the maximum relative electron transport rate of algae, leading to an increase in the photosynthetic capacity of APs. Meanwhile, the high microbial abundance indicates that chemoheterotrophic bacteria are the main influencing factor for the removal of nitrogen and phosphorus by the APs. Moreover, the system with PD using artificial lamps was proven to be feasible for engineering applications and potentially utilized in rural domestic wastewater treatment.
format	article
author	Yuxuan Mao Hongfang Tan Kemei Wang Yejian Zhang Zhan Jin Min Zhao Yiqing Li Xiangyong Zheng
author_facet	Yuxuan Mao Hongfang Tan Kemei Wang Yejian Zhang Zhan Jin Min Zhao Yiqing Li Xiangyong Zheng
author_sort	Yuxuan Mao
title	Enhancement of algae ponds for rural domestic sewage treatment by prolonging daylight using artificial lamps
title_short	Enhancement of algae ponds for rural domestic sewage treatment by prolonging daylight using artificial lamps
title_full	Enhancement of algae ponds for rural domestic sewage treatment by prolonging daylight using artificial lamps
title_fullStr	Enhancement of algae ponds for rural domestic sewage treatment by prolonging daylight using artificial lamps
title_full_unstemmed	Enhancement of algae ponds for rural domestic sewage treatment by prolonging daylight using artificial lamps
title_sort	enhancement of algae ponds for rural domestic sewage treatment by prolonging daylight using artificial lamps
publisher	Elsevier
publishDate	2021
url	https://doaj.org/article/ec73c735f89741b68f86c1c244214aa5
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Enhancement of algae ponds for rural domestic sewage treatment by prolonging daylight using artificial lamps

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