Water reuse potential for irrigation in Brazilian hydrographic regions

The present paper carried out an evaluation of the reuse potential of the Wastewater Treatment Plants (WWTPs) effluents for irrigation in the 12 Brazilian Hydrographic Regions (BHRs). For this purpose, initially, the WWTPs were categorized and the effluent flow rate was estimated. Category 1 represe...

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Autores principales:	Maíra Lima, Bruna Magalhães de Araujo, Sérgio Rodrigues Ayrimoraes Soares, Ana Silvia Pereira Santos, José Manuel Pereira Vieira
Formato:	article
Lenguaje:	EN
Publicado:	IWA Publishing 2021
Materias:	brazilian hydrographic regions irrigation water demand wastewater treatment plant water availability water resources management water reuse Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
Acceso en línea:	https://doaj.org/article/3ff77021e0824857889bbd57216063d3
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id	oai:doaj.org-article:3ff77021e0824857889bbd57216063d3
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spelling	oai:doaj.org-article:3ff77021e0824857889bbd57216063d32021-11-06T10:08:03ZWater reuse potential for irrigation in Brazilian hydrographic regions1606-97491607-079810.2166/ws.2020.280https://doaj.org/article/3ff77021e0824857889bbd57216063d32021-09-01T00:00:00Zhttp://ws.iwaponline.com/content/21/6/2799https://doaj.org/toc/1606-9749https://doaj.org/toc/1607-0798The present paper carried out an evaluation of the reuse potential of the Wastewater Treatment Plants (WWTPs) effluents for irrigation in the 12 Brazilian Hydrographic Regions (BHRs). For this purpose, initially, the WWTPs were categorized and the effluent flow rate was estimated. Category 1 represents secondary effluent with an efficiency of organic matter removal greater than 80%; Category 2 represents effluent that underwent some disinfection step; and effluents that perform less than the other categories were called ‘Uncategorized’. After that, the irrigation water demands for each BHRs were compiled, and finally, the production of water for reutilization was compared with the demand for irrigation. Thus, it was observed that all the sewage flow rates generated in Brazil classified in Categories 1 and 2 represent 9% of the total irrigation water demand in the country (1,078.71 m3/s) and it stands out that only 7% of the flows treated in Brazil undergo a tertiary treatment step. HIGHLIGHTS In Brazil, irrigation demands 52% of water withdrawals.; There are 12 BHRs for guiding the management of water resources.; Flow rate of WWTP effluent with an organic matter removal efficiency greater than 80% represents 9% of the total water demand for irrigation.; There are some BHRs with a high potential of reuse for irrigation.; Some BHRs present high demand for irrigation, but with low sewage treatment coverage.;Maíra LimaBruna Magalhães de AraujoSérgio Rodrigues Ayrimoraes SoaresAna Silvia Pereira SantosJosé Manuel Pereira VieiraIWA Publishingarticlebrazilian hydrographic regionsirrigation water demandwastewater treatment plantwater availabilitywater resources managementwater reuseWater supply for domestic and industrial purposesTD201-500River, lake, and water-supply engineering (General)TC401-506ENWater Supply, Vol 21, Iss 6, Pp 2799-2810 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	brazilian hydrographic regions irrigation water demand wastewater treatment plant water availability water resources management water reuse Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506
spellingShingle	brazilian hydrographic regions irrigation water demand wastewater treatment plant water availability water resources management water reuse Water supply for domestic and industrial purposes TD201-500 River, lake, and water-supply engineering (General) TC401-506 Maíra Lima Bruna Magalhães de Araujo Sérgio Rodrigues Ayrimoraes Soares Ana Silvia Pereira Santos José Manuel Pereira Vieira Water reuse potential for irrigation in Brazilian hydrographic regions
description	The present paper carried out an evaluation of the reuse potential of the Wastewater Treatment Plants (WWTPs) effluents for irrigation in the 12 Brazilian Hydrographic Regions (BHRs). For this purpose, initially, the WWTPs were categorized and the effluent flow rate was estimated. Category 1 represents secondary effluent with an efficiency of organic matter removal greater than 80%; Category 2 represents effluent that underwent some disinfection step; and effluents that perform less than the other categories were called ‘Uncategorized’. After that, the irrigation water demands for each BHRs were compiled, and finally, the production of water for reutilization was compared with the demand for irrigation. Thus, it was observed that all the sewage flow rates generated in Brazil classified in Categories 1 and 2 represent 9% of the total irrigation water demand in the country (1,078.71 m3/s) and it stands out that only 7% of the flows treated in Brazil undergo a tertiary treatment step. HIGHLIGHTS In Brazil, irrigation demands 52% of water withdrawals.; There are 12 BHRs for guiding the management of water resources.; Flow rate of WWTP effluent with an organic matter removal efficiency greater than 80% represents 9% of the total water demand for irrigation.; There are some BHRs with a high potential of reuse for irrigation.; Some BHRs present high demand for irrigation, but with low sewage treatment coverage.;
format	article
author	Maíra Lima Bruna Magalhães de Araujo Sérgio Rodrigues Ayrimoraes Soares Ana Silvia Pereira Santos José Manuel Pereira Vieira
author_facet	Maíra Lima Bruna Magalhães de Araujo Sérgio Rodrigues Ayrimoraes Soares Ana Silvia Pereira Santos José Manuel Pereira Vieira
author_sort	Maíra Lima
title	Water reuse potential for irrigation in Brazilian hydrographic regions
title_short	Water reuse potential for irrigation in Brazilian hydrographic regions
title_full	Water reuse potential for irrigation in Brazilian hydrographic regions
title_fullStr	Water reuse potential for irrigation in Brazilian hydrographic regions
title_full_unstemmed	Water reuse potential for irrigation in Brazilian hydrographic regions
title_sort	water reuse potential for irrigation in brazilian hydrographic regions
publisher	IWA Publishing
publishDate	2021
url	https://doaj.org/article/3ff77021e0824857889bbd57216063d3
work_keys_str_mv	AT mairalima waterreusepotentialforirrigationinbrazilianhydrographicregions AT brunamagalhaesdearaujo waterreusepotentialforirrigationinbrazilianhydrographicregions AT sergiorodriguesayrimoraessoares waterreusepotentialforirrigationinbrazilianhydrographicregions AT anasilviapereirasantos waterreusepotentialforirrigationinbrazilianhydrographicregions AT josemanuelpereiravieira waterreusepotentialforirrigationinbrazilianhydrographicregions
_version_	1718443789728612352

Water reuse potential for irrigation in Brazilian hydrographic regions

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