Ecotoxicidade de esgoto tratado como um parâmetro operacional em ETES

Aquatic ecosystems are used as destination of urban effluents. According to Brazilian regulation, final effluents must not have the potential to cause impact on the receiving body and, to assess this impact, toxicity tests are required. The objective of this work was to evaluate the acute toxicity w...

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Main Authors: Almeida, Gabriela Cristina Fonseca, Umbuzeiro, Gisela de Aragão
Format: Online
Language:Portuguese
Published: Universidade Estadual de Campinas. Faculdade de Engenharia Civil, Arquitetura e Urbanismo. 2022
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Online Access:https://econtents.sbu.unicamp.br/eventos/index.php/iwisdw/article/view/4795
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author Almeida, Gabriela Cristina Fonseca
Umbuzeiro, Gisela de Aragão
author_facet Almeida, Gabriela Cristina Fonseca
Umbuzeiro, Gisela de Aragão
author_sort Almeida, Gabriela Cristina Fonseca
collection Portal de Eventos Científicos da UNICAMP
container_reference International Workshop for Innovation in Safe Drinking Water; n. 1 (2022); 11-15
description Aquatic ecosystems are used as destination of urban effluents. According to Brazilian regulation, final effluents must not have the potential to cause impact on the receiving body and, to assess this impact, toxicity tests are required. The objective of this work was to evaluate the acute toxicity with Daphnia similis and chronic with Ceriodaphnia dubia of final effluents from 4 sewage plants (ETEs, named A, B, C and D) from Campinas, SP, Brazil, with different treatments’ levels. Six monthly campaigns were carried out in 2022 and samples were collected before and after chlorination. The effluents from ETE B showed acute toxicity in all campaigns, and effluents from ETE A and C showed acute toxicity in at least one campaign, but with low toxicity (EC50, 48h >50%). Chronic toxicity was detected in all effluents, except in ETE D (reuse water production station) indicating the great efficiency of the treatment of membrane bioreactors (MBR). Acute tests with fish embryos (FET) will be performed to compare the results of tests with cladocerans. The evaluation of the impact potential of the effluents will also be carried out based on the average of effluent discharges and in reference to the respective receiving bodies.
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issn International Workshop for Innovation in Safe Drinking Water; n. 1 (2022); 11-15
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spelling ojs-article-47952022-11-30T14:09:03Z Ecotoxicidade de esgoto tratado como um parâmetro operacional em ETES Almeida, Gabriela Cristina Fonseca Umbuzeiro, Gisela de Aragão Ecotoxicity Environment Sewage treatment Aquatic ecosystems are used as destination of urban effluents. According to Brazilian regulation, final effluents must not have the potential to cause impact on the receiving body and, to assess this impact, toxicity tests are required. The objective of this work was to evaluate the acute toxicity with Daphnia similis and chronic with Ceriodaphnia dubia of final effluents from 4 sewage plants (ETEs, named A, B, C and D) from Campinas, SP, Brazil, with different treatments’ levels. Six monthly campaigns were carried out in 2022 and samples were collected before and after chlorination. The effluents from ETE B showed acute toxicity in all campaigns, and effluents from ETE A and C showed acute toxicity in at least one campaign, but with low toxicity (EC50, 48h >50%). Chronic toxicity was detected in all effluents, except in ETE D (reuse water production station) indicating the great efficiency of the treatment of membrane bioreactors (MBR). Acute tests with fish embryos (FET) will be performed to compare the results of tests with cladocerans. The evaluation of the impact potential of the effluents will also be carried out based on the average of effluent discharges and in reference to the respective receiving bodies. Universidade Estadual de Campinas. Faculdade de Engenharia Civil, Arquitetura e Urbanismo. 2022-11-25 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Texto application/pdf https://econtents.sbu.unicamp.br/eventos/index.php/iwisdw/article/view/4795 10.20396/iwisdw.n1.2022.4795 International Workshop for Innovation in Safe Drinking Water; n. 1 (2022); 11-15 por https://econtents.sbu.unicamp.br/eventos/index.php/iwisdw/article/view/4795/4560 Brasil; Contemporâneo Copyright (c) 2022 Gabriela Cristina Fonseca Almeida, Gisela de Aragao Umbuzeiro https://creativecommons.org/licenses/by/4.0
spellingShingle Almeida, Gabriela Cristina Fonseca
Umbuzeiro, Gisela de Aragão
Ecotoxicity
Environment
Sewage treatment
Ecotoxicidade de esgoto tratado como um parâmetro operacional em ETES
title Ecotoxicidade de esgoto tratado como um parâmetro operacional em ETES
title_full Ecotoxicidade de esgoto tratado como um parâmetro operacional em ETES
title_fullStr Ecotoxicidade de esgoto tratado como um parâmetro operacional em ETES
title_full_unstemmed Ecotoxicidade de esgoto tratado como um parâmetro operacional em ETES
title_short Ecotoxicidade de esgoto tratado como um parâmetro operacional em ETES
title_sort ecotoxicidade de esgoto tratado como um parâmetro operacional em etes
topic Ecotoxicity
Environment
Sewage treatment
url https://econtents.sbu.unicamp.br/eventos/index.php/iwisdw/article/view/4795
work_keys_str_mv AT almeidagabrielacristinafonseca ecotoxicidadedeesgototratadocomoumparametrooperacionalemetes
AT umbuzeirogiseladearagao ecotoxicidadedeesgototratadocomoumparametrooperacionalemetes