Relationships between abiotic and biotic variables in a maturation pond and their influence on E. coli removal

The effects of depth and climate seasonality on zooplankton, algal biomass, coliforms and Escherichia coli in a small full-scale shallow maturation pond receiving pre-treated domestic wastewater were evaluated during a tropical climatic seasonal cycle. The experiment revealed that the zooplankton co...

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Autores principales:	Ana M. M. Batista, Daniella do Valle, Daniel F. C. Dias, Luciene A. B. Sinischachi, Bruna Coelho Lopes, Marcos von Sperling, Cleber C. Figueredo, César Rossas Mota-Filho
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	biomass algae chlorophyll-a coliforms escherichia coli waste stabilization pond zooplankton Environmental technology. Sanitary engineering TD1-1066
Acceso en línea:	https://doaj.org/article/55509d817f1f47a09238abf686f80ad3
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spelling	oai:doaj.org-article:55509d817f1f47a09238abf686f80ad32021-12-02T07:40:31ZRelationships between abiotic and biotic variables in a maturation pond and their influence on E. coli removal0273-12231996-973210.2166/wst.2021.268https://doaj.org/article/55509d817f1f47a09238abf686f80ad32021-11-01T00:00:00Zhttp://wst.iwaponline.com/content/84/10-11/2903https://doaj.org/toc/0273-1223https://doaj.org/toc/1996-9732The effects of depth and climate seasonality on zooplankton, algal biomass, coliforms and Escherichia coli in a small full-scale shallow maturation pond receiving pre-treated domestic wastewater were evaluated during a tropical climatic seasonal cycle. The experiment revealed that the zooplankton community was dominated by rotifers and protozoans, and concentrations were influenced by seasonality. A negative correlation between zooplankton, and pH, dissolved oxygen, temperature and ultraviolet radiation, and chlorophyll-a and Escherichia coli were observed at all depths. The major driving forces influencing Escherichia coli were pH, dissolved oxygen, ultraviolet radiation and the zooplankton. A significant difference between Escherichia coli removal throughout the three different depths were observed. Both bacterial and zooplankton concentrations were greater closer to the bottom of the pond, therefore reinforcing the integral role of solar radiation on bacterial removal. These results give an insight on the dynamics of these groups in pond systems treating domestic wastewater, by correlating the variation of zooplankton with biotic and abiotic variables and seasonal changes in a tropical climate, where few studies have been performed on this topic. HIGHLIGHTS The variables pH, DO, zooplankton community and solar radiation are shown to be determining factors in reducing E. coli in a maturation pond.; Zooplankton concentrations were greater closer to the bottom of the pond.; E. coli removal varied between the three different depths reinforcing the role of solar radiation on bacterial removal rate.;Ana M. M. BatistaDaniella do ValleDaniel F. C. DiasLuciene A. B. SinischachiBruna Coelho LopesMarcos von SperlingCleber C. FigueredoCésar Rossas Mota-FilhoIWA Publishingarticlebiomass algaechlorophyll-acoliformsescherichia coliwaste stabilization pondzooplanktonEnvironmental technology. Sanitary engineeringTD1-1066ENWater Science and Technology, Vol 84, Iss 10-11, Pp 2903-2912 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	biomass algae chlorophyll-a coliforms escherichia coli waste stabilization pond zooplankton Environmental technology. Sanitary engineering TD1-1066
spellingShingle	biomass algae chlorophyll-a coliforms escherichia coli waste stabilization pond zooplankton Environmental technology. Sanitary engineering TD1-1066 Ana M. M. Batista Daniella do Valle Daniel F. C. Dias Luciene A. B. Sinischachi Bruna Coelho Lopes Marcos von Sperling Cleber C. Figueredo César Rossas Mota-Filho Relationships between abiotic and biotic variables in a maturation pond and their influence on E. coli removal
description	The effects of depth and climate seasonality on zooplankton, algal biomass, coliforms and Escherichia coli in a small full-scale shallow maturation pond receiving pre-treated domestic wastewater were evaluated during a tropical climatic seasonal cycle. The experiment revealed that the zooplankton community was dominated by rotifers and protozoans, and concentrations were influenced by seasonality. A negative correlation between zooplankton, and pH, dissolved oxygen, temperature and ultraviolet radiation, and chlorophyll-a and Escherichia coli were observed at all depths. The major driving forces influencing Escherichia coli were pH, dissolved oxygen, ultraviolet radiation and the zooplankton. A significant difference between Escherichia coli removal throughout the three different depths were observed. Both bacterial and zooplankton concentrations were greater closer to the bottom of the pond, therefore reinforcing the integral role of solar radiation on bacterial removal. These results give an insight on the dynamics of these groups in pond systems treating domestic wastewater, by correlating the variation of zooplankton with biotic and abiotic variables and seasonal changes in a tropical climate, where few studies have been performed on this topic. HIGHLIGHTS The variables pH, DO, zooplankton community and solar radiation are shown to be determining factors in reducing E. coli in a maturation pond.; Zooplankton concentrations were greater closer to the bottom of the pond.; E. coli removal varied between the three different depths reinforcing the role of solar radiation on bacterial removal rate.;
format	article
author	Ana M. M. Batista Daniella do Valle Daniel F. C. Dias Luciene A. B. Sinischachi Bruna Coelho Lopes Marcos von Sperling Cleber C. Figueredo César Rossas Mota-Filho
author_facet	Ana M. M. Batista Daniella do Valle Daniel F. C. Dias Luciene A. B. Sinischachi Bruna Coelho Lopes Marcos von Sperling Cleber C. Figueredo César Rossas Mota-Filho
author_sort	Ana M. M. Batista
title	Relationships between abiotic and biotic variables in a maturation pond and their influence on E. coli removal
title_short	Relationships between abiotic and biotic variables in a maturation pond and their influence on E. coli removal
title_full	Relationships between abiotic and biotic variables in a maturation pond and their influence on E. coli removal
title_fullStr	Relationships between abiotic and biotic variables in a maturation pond and their influence on E. coli removal
title_full_unstemmed	Relationships between abiotic and biotic variables in a maturation pond and their influence on E. coli removal
title_sort	relationships between abiotic and biotic variables in a maturation pond and their influence on e. coli removal
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/55509d817f1f47a09238abf686f80ad3
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Relationships between abiotic and biotic variables in a maturation pond and their influence on E. coli removal

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