Potential for reuse of sanitary sewage combined with air conditioning water disinfected by the SODIS process: a case study
Potencial de reúso de esgoto sanitário combinado com água de ar condicionado desinfetado por processo SODIS: um estudo de caso
DOI:
https://doi.org/10.53660/CLM-1795-23M22Palavras-chave:
Sustainability, SDGs, reuseResumo
The objectives for sustainable development goals (SDGs) are present in the development plans of several educational institutions, aiming to integrate into the world panorama of the collective journey for the development of innovative and transformative actions to build a fairer and more sustainable society. In this sense, the present study is aimed at promoting the objective “Sustainable cities and communities”, in order to evaluate the potential for wastewater reuse and the reduction of surface water exploitation on the Gurupi campus of the Federal University of Tocantins. In this way, this work aims to establish a low-cost way of reuse by combining wastewater from air conditioning and sanitary sewage from the campus, post-treated by the SODIS process. The results showed that reuse in combination requires dilutions with volumes of less than 10% of sanitary sewage and with sun exposure time more than 6 hours at solar intensities above 900 W/m2. The use of air conditioning water disinfected by the SODIS process has greater advantages compared to the combined process in terms of reuse possibilities. So, this study is of great relevance, especially during the six months of drought in the region, which severely compromises the availability of water for irrigation activities, as well as the volume of water in the lake located on the campus.
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Referências
ABNT. Associação Brasileira de Normas Técnicas. NBR 13969/97. Tanques sépticos - Unidades de tratamento complementar e disposição final dos efluentes líquidos - Projeto, construção e operação. 1997.
ALI, S. et al. Resource recovery from industrial effluents through the cultivation of microalgae: A review. Bioresource technology, v. 337, p. 125461, 2021.
ANDRADE, I. P. et al. Impacto do reúso de efluentes de esgoto no lixiviado de solos cultivados com milho. Revista Brasileira de Engenharia Agrícola e Ambiental, v. 9, p. 212-216, 2021.
APHA / AWWA / WEF. Standard Methods of the Examination of Water and Wastewater. 23th ed. APHA (American Public Health Association), 2017.
BRASIL, CONSELHO NACIONAL DE RECURSOS HÍDRICOS-CNRH. RESOLUÇÃO Nº 54, DE 28 DE NOVEMBRO DE 2005. Estabelece modalidades, diretrizes e critérios gerais para a prática de reúso direito não potável de água, e dá outras providências.
BRASIL, Ministério da Saúde. Portaria n.º 888 de 4 de maio de 2021. Dispõe sobre normas de potabilidade de água para o consumo humano. Brasília: 2021. Disponível em: https://www.in.gov.br/en/web/dou/-/portaria-gm/ms-n-888-de-4-de-maio-de-2021-318461562
CAVALLINI, G. S.; SILVA, W. P.; GONZAGA, M. F. Desinfecção de efluente final de abatedouro de bovinos com ácido peracético para fins de reúso. Desafios - Revista Interdisciplinar da Universidade Federal do Tocantins, 4(4), 41–50, 2017. https://doi.org/10.20873/uft.2359-3652.2017v4n4p41
CAVALLINI, G. S., ARAUJO, D. L. B. S., LIMA, J. G. F. (2018). Desinfecção de água de poço por radiação solar (SODIS): um estudo na região sul do Tocantins. Desafios - Revista Interdisciplinar da Universidade Federal do Tocantins, 5 (Especial), 66–73, 2018. https://doi.org/10.20873/uft.2359-3652.2018v5nEspecialp66
CARMO, R. L.; DAGNINO, R. S.; JOHANSEN, I. C. Transição demográfica e transição do consumo urbano de água no Brasil. Rev. bras. estud. popul. 31 (1), 2014, https://doi.org/10.1590/S0102-30982014000100010
EPA (United States Environment Protection Agency). Manual para reúso de água. EPA/ 600/R – 12/618, 2012.
LUZI, S. SODIS manual: Guidance on solar water disinfection. Duebendorf: EAWAG, 2016.
MEIERHOFER, R.; WEGELIN, M.: Solar Water Disinfection: A Guide for the Application of SODIS. Duebendorf: EAWAG/SANDEC, 2002.
OATES, P., M.; SHANAHAN, P.; POLZ, M., F. Solar disinfection (SODIS): simulation of solar radiation for global assessment and application for point-of-use water treatment in Haiti. Water Research, Cambridge, vol. 37, 2003.
RYTCHYSKYI, j. M. F.; ALMEIDA, C. A. S. M.; CEDRIM, M. B. M. Reúso da água: uma revisão do ponto de vista legal. R. Gest. Sust. Ambient., Florianópolis, v. 10, n. 1, p. 470-485, mai. 2021
VIVAR, M. et al. Effect of common rooftop materials as support base for solar disinfection (SODIS) in rural areas under temperate climates. Solar Energy, Vol. 115, 2015.
