Impactos físico-químicos da disposição de rejeito de dessalinizadores das águas de poços em solos do Oeste Potiguar
Autor(a) principal: | |
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Data de Publicação: | 2016 |
Tipo de documento: | Tese |
Idioma: | por |
Título da fonte: | Biblioteca Digital de Teses e Dissertações da UFERSA |
Texto Completo: | https://repositorio.ufersa.edu.br/handle/tede/630 |
Resumo: | In spite of the fact that crystalline basement predominates with brackish water wells in Brazilian thirstland, desalination technology by reverse osmosis enables its potabilization. Since the late nineties, reverse osmosis desalination devices have been deployed in order to meet the water demand for human consumption, especially in the rural Northeast. Nevertheless, difficulties are present in such deployment like lack of operation and proper maintenance, causing stoppage thereof and producing high-level reject brine, which is usually discharged to the ground without any criteria, and its main consequence has been soil salinity increase over time. Thus, this works aims at evaluating the outcome of the reverse osmosis desalination discharge and its influence in physicochemical attributes of distinct receiver soils in rural communities from Potiguar west. This research was conducted between 2013 and 2014. At first, the communities which were supplied by catchment and treatment of desalinated water centers were registered through a cadastral survey. In order to do so, four data collection expeditions took place in different periods, raining season and drought, on the soils receiving reject brine. Three distances were used (0, 1 and 2 meters from the discharge points) with two layers for each point (0-20cm and 20-40 cm) as well as the evaluation of a) the reverse osmosis treated water quality, b) the well, c) the reject brine. Physicochemical attributes of water for irrigation was also analyzed as well as soil samples for a fertility evaluation. Data were subjected to statistical average tests by Scott Knott to verify the behavior within the points and layers according to each period and between all four periods. The waters were classified according to its use for irrigation; leakage risks and toxicity in plants. The soils were classified according to salinity, Ph considering CE and PST. In the monitored rural communities, the reversed osmosis water treatment stations produce desalinated water with low concentrations of salts, with 68% of all samples are in C1S1 rating class; 25% in C2S1 and class; only 7% in C3S1 class. Regarding the reject brine, 93% of waste water samples were classified as C3 or C4 during the four collecting periods, that is, at high or extremely high salinization risk. The different types of receiver soils of reject brine coming from such communities show meaningful alteration of their attributes and of their qualities throughout the periods, being that more noticeable during the drought periods and on the layers of soils with greater amount of clay, promoting different ratings for the same soil, being such ratings influenced directly by the waste water from desalination process |
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Dias, Nildo da SilvaMartins, Daniel Freitas Freirehttp://lattes.cnpq.br/1834691679987332Vasconcelos, Cybelle Barbosa e Limahttp://lattes.cnpq.br/4379675862376843Gurgel, Gabriela Cemirames de Sousahttp://lattes.cnpq.br/8427964035442466Lima, Alexandre de Oliveirahttp://lattes.cnpq.br/768411195942010004088998910http://lattes.cnpq.br/6977535519217854http://lattes.cnpq.br/1438691490740154Oliveira, André Moreira de2017-03-21T15:07:20Z2016-07-15OLIVEIRA, André Moreira de. Impactos físico-químicos da disposição de rejeito de dessalinizadores das águas de poços em solos do Oeste Potiguar. 2016. 113 f. Tese (Doutorado) - Curso de Pós-graduação em Manejo de Solo e Água, Universidade Federal Rural do Semi-Árido, Mossoró, 2016.https://repositorio.ufersa.edu.br/handle/tede/630In spite of the fact that crystalline basement predominates with brackish water wells in Brazilian thirstland, desalination technology by reverse osmosis enables its potabilization. Since the late nineties, reverse osmosis desalination devices have been deployed in order to meet the water demand for human consumption, especially in the rural Northeast. Nevertheless, difficulties are present in such deployment like lack of operation and proper maintenance, causing stoppage thereof and producing high-level reject brine, which is usually discharged to the ground without any criteria, and its main consequence has been soil salinity increase over time. Thus, this works aims at evaluating the outcome of the reverse osmosis desalination discharge and its influence in physicochemical attributes of distinct receiver soils in rural communities from Potiguar west. This research was conducted between 2013 and 2014. At first, the communities which were supplied by catchment and treatment of desalinated water centers were registered through a cadastral survey. In order to do so, four data collection expeditions took place in different periods, raining season and drought, on the soils receiving reject brine. Three distances were used (0, 1 and 2 meters from the discharge points) with two layers for each point (0-20cm and 20-40 cm) as well as the evaluation of a) the reverse osmosis treated water quality, b) the well, c) the reject brine. Physicochemical attributes of water for irrigation was also analyzed as well as soil samples for a fertility evaluation. Data were subjected to statistical average tests by Scott Knott to verify the behavior within the points and layers according to each period and between all four periods. The waters were classified according to its use for irrigation; leakage risks and toxicity in plants. The soils were classified according to salinity, Ph considering CE and PST. In the monitored rural communities, the reversed osmosis water treatment stations produce desalinated water with low concentrations of salts, with 68% of all samples are in C1S1 rating class; 25% in C2S1 and class; only 7% in C3S1 class. Regarding the reject brine, 93% of waste water samples were classified as C3 or C4 during the four collecting periods, that is, at high or extremely high salinization risk. The different types of receiver soils of reject brine coming from such communities show meaningful alteration of their attributes and of their qualities throughout the periods, being that more noticeable during the drought periods and on the layers of soils with greater amount of clay, promoting different ratings for the same soil, being such ratings influenced directly by the waste water from desalination processAinda que, no Semiárido brasileiro, predomine o embasamento cristalino, com poços de água salobra, a tecnologia da dessalinização permite a sua potabilização. Desde o final da década de 1990, vem sendo implantados equipamentos de dessalinização por osmose reversa visando o atendimento da demanda hídrica para consumo humano, especialmente na zona rural do Nordeste. No entanto, dificuldades estão presentes na implantação dos equipamentos, tais como a falta de operação e manutenções adequadas que causam a paralisação dos mesmos, e a produção de rejeitos com elevados teores de sais, normalmente despejados ao solo sem qualquer critério, cujo maior impacto tem sido o aumento da salinidade do solo ao longo do tempo. Desta forma, o objetivo deste trabalho foi avaliar o rejeito gerado pela osmose reversa e sua influência nas alterações dos atributos físico-químicos de distintos solos receptores em comunidades rurais do Oeste Potiguar. A pesquisa ocorreu no período de 2013 e 2014, inicialmente, foram identificadas as comunidades abastecidas com as unidades de captação e tratamento de água por dessalinização, por meios de um levantamento cadastral. Para isto, foram realizadas 4 campanhas de coletas em diferentes períodos de seca e chuva nos solos receptores do rejeito salino, usando três distâncias (0; 1 e 2 metros do ponto de despejo), com duas camadas para cada ponto (0-20 e 20-40 cm), bem como avaliação da qualidade das águas tratadas por osmose reversa, poço e rejeito salino, dentro de cada período. Foram analisados atributos físico-químicos das águas para fins de irrigação e as amostras de solo para avaliação da fertilidade. Os dados foram submetidos a testes estatísticos de médias, por Scott Knott, verificando o comportamento dentro dos pontos e camadas de cada período e entre os 4 períodos. As águas foram classificadas quanto ao uso na irrigação; aos riscos de infiltração e toxicidade em plantas. Os solos foram classificados de acordo com a salinidade, considerando pH, CEes e PST. As estações de tratamento de água por osmose reversa nas comunidades rurais monitoradas produzem uma água dessalinizada com concentrações baixas de sais, com 68% do total das amostras estão na classe de classificação C1S1; 25% na classe C2S1 e; apenas 7% na classe C3S1. Com relação ao rejeito gerado, 93% das amostras de água de rejeito se classificaram como C3 ou C4 nos quatro períodos de coleta, ou seja, águas de alto ou extremamente alto risco de salinização. As diferentes classes de solos receptores do rejeito salino das comunidades apresentaram alterações significativas dos seus atributos e sua qualidade ao longo dos períodos, sendo mais evidente nos períodos secos e camadas de solos com maior presença de argila, promovendo classificações distintas para um mesmo solo, influenciadas diretamente pela água de rejeito do processo de dessalinização2017-02-01application/pdfhttp://repositorio.ufersa.edu.br/retrieve/1393/Andr%c3%a9MO_TESE.pdf.jpgporUniversidade Federal Rural do Semi-ÁridoPrograma de Pós-Graduação em Manejo de Solo e ÁguaUFERSABrasilCC-BY-SAinfo:eu-repo/semantics/openAccessRecursos hídricosSolos salinosOsmose reversaÁgua residuáriaWater resourcesSaline soilsReverse osmosisWastewaterCNPQ::CIENCIAS AGRARIAS::AGRONOMIAImpactos físico-químicos da disposição de rejeito de dessalinizadores das águas de poços em solos do Oeste Potiguarinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/doctoralThesisreponame:Biblioteca Digital de Teses e Dissertações da UFERSAinstname:Universidade Federal Rural do Semi-Árido (UFERSA)instacron:UFERSALICENSElicense.txtlicense.txttext/plain; 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dc.title.por.fl_str_mv |
Impactos físico-químicos da disposição de rejeito de dessalinizadores das águas de poços em solos do Oeste Potiguar |
title |
Impactos físico-químicos da disposição de rejeito de dessalinizadores das águas de poços em solos do Oeste Potiguar |
spellingShingle |
Impactos físico-químicos da disposição de rejeito de dessalinizadores das águas de poços em solos do Oeste Potiguar Oliveira, André Moreira de Recursos hídricos Solos salinos Osmose reversa Água residuária Water resources Saline soils Reverse osmosis Wastewater CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
title_short |
Impactos físico-químicos da disposição de rejeito de dessalinizadores das águas de poços em solos do Oeste Potiguar |
title_full |
Impactos físico-químicos da disposição de rejeito de dessalinizadores das águas de poços em solos do Oeste Potiguar |
title_fullStr |
Impactos físico-químicos da disposição de rejeito de dessalinizadores das águas de poços em solos do Oeste Potiguar |
title_full_unstemmed |
Impactos físico-químicos da disposição de rejeito de dessalinizadores das águas de poços em solos do Oeste Potiguar |
title_sort |
Impactos físico-químicos da disposição de rejeito de dessalinizadores das águas de poços em solos do Oeste Potiguar |
author |
Oliveira, André Moreira de |
author_facet |
Oliveira, André Moreira de |
author_role |
author |
dc.contributor.authorID.por.fl_str_mv |
04088998910 |
dc.contributor.authorLattes.por.fl_str_mv |
http://lattes.cnpq.br/6977535519217854 |
dc.contributor.advisorLattes.por.fl_str_mv |
http://lattes.cnpq.br/1438691490740154 |
dc.contributor.advisor1.fl_str_mv |
Dias, Nildo da Silva |
dc.contributor.referee1.fl_str_mv |
Martins, Daniel Freitas Freire |
dc.contributor.referee1Lattes.fl_str_mv |
http://lattes.cnpq.br/1834691679987332 |
dc.contributor.referee2.fl_str_mv |
Vasconcelos, Cybelle Barbosa e Lima |
dc.contributor.referee2Lattes.fl_str_mv |
http://lattes.cnpq.br/4379675862376843 |
dc.contributor.referee3.fl_str_mv |
Gurgel, Gabriela Cemirames de Sousa |
dc.contributor.referee3Lattes.fl_str_mv |
http://lattes.cnpq.br/8427964035442466 |
dc.contributor.referee4.fl_str_mv |
Lima, Alexandre de Oliveira |
dc.contributor.referee4Lattes.fl_str_mv |
http://lattes.cnpq.br/7684111959420100 |
dc.contributor.author.fl_str_mv |
Oliveira, André Moreira de |
contributor_str_mv |
Dias, Nildo da Silva Martins, Daniel Freitas Freire Vasconcelos, Cybelle Barbosa e Lima Gurgel, Gabriela Cemirames de Sousa Lima, Alexandre de Oliveira |
dc.subject.por.fl_str_mv |
Recursos hídricos Solos salinos Osmose reversa Água residuária Water resources Saline soils Reverse osmosis Wastewater |
topic |
Recursos hídricos Solos salinos Osmose reversa Água residuária Water resources Saline soils Reverse osmosis Wastewater CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
dc.subject.cnpq.fl_str_mv |
CNPQ::CIENCIAS AGRARIAS::AGRONOMIA |
description |
In spite of the fact that crystalline basement predominates with brackish water wells in Brazilian thirstland, desalination technology by reverse osmosis enables its potabilization. Since the late nineties, reverse osmosis desalination devices have been deployed in order to meet the water demand for human consumption, especially in the rural Northeast. Nevertheless, difficulties are present in such deployment like lack of operation and proper maintenance, causing stoppage thereof and producing high-level reject brine, which is usually discharged to the ground without any criteria, and its main consequence has been soil salinity increase over time. Thus, this works aims at evaluating the outcome of the reverse osmosis desalination discharge and its influence in physicochemical attributes of distinct receiver soils in rural communities from Potiguar west. This research was conducted between 2013 and 2014. At first, the communities which were supplied by catchment and treatment of desalinated water centers were registered through a cadastral survey. In order to do so, four data collection expeditions took place in different periods, raining season and drought, on the soils receiving reject brine. Three distances were used (0, 1 and 2 meters from the discharge points) with two layers for each point (0-20cm and 20-40 cm) as well as the evaluation of a) the reverse osmosis treated water quality, b) the well, c) the reject brine. Physicochemical attributes of water for irrigation was also analyzed as well as soil samples for a fertility evaluation. Data were subjected to statistical average tests by Scott Knott to verify the behavior within the points and layers according to each period and between all four periods. The waters were classified according to its use for irrigation; leakage risks and toxicity in plants. The soils were classified according to salinity, Ph considering CE and PST. In the monitored rural communities, the reversed osmosis water treatment stations produce desalinated water with low concentrations of salts, with 68% of all samples are in C1S1 rating class; 25% in C2S1 and class; only 7% in C3S1 class. Regarding the reject brine, 93% of waste water samples were classified as C3 or C4 during the four collecting periods, that is, at high or extremely high salinization risk. The different types of receiver soils of reject brine coming from such communities show meaningful alteration of their attributes and of their qualities throughout the periods, being that more noticeable during the drought periods and on the layers of soils with greater amount of clay, promoting different ratings for the same soil, being such ratings influenced directly by the waste water from desalination process |
publishDate |
2016 |
dc.date.issued.fl_str_mv |
2016-07-15 |
dc.date.accessioned.fl_str_mv |
2017-03-21T15:07:20Z |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/doctoralThesis |
format |
doctoralThesis |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
OLIVEIRA, André Moreira de. Impactos físico-químicos da disposição de rejeito de dessalinizadores das águas de poços em solos do Oeste Potiguar. 2016. 113 f. Tese (Doutorado) - Curso de Pós-graduação em Manejo de Solo e Água, Universidade Federal Rural do Semi-Árido, Mossoró, 2016. |
dc.identifier.uri.fl_str_mv |
https://repositorio.ufersa.edu.br/handle/tede/630 |
identifier_str_mv |
OLIVEIRA, André Moreira de. Impactos físico-químicos da disposição de rejeito de dessalinizadores das águas de poços em solos do Oeste Potiguar. 2016. 113 f. Tese (Doutorado) - Curso de Pós-graduação em Manejo de Solo e Água, Universidade Federal Rural do Semi-Árido, Mossoró, 2016. |
url |
https://repositorio.ufersa.edu.br/handle/tede/630 |
dc.language.iso.fl_str_mv |
por |
language |
por |
dc.rights.driver.fl_str_mv |
CC-BY-SA info:eu-repo/semantics/openAccess |
rights_invalid_str_mv |
CC-BY-SA |
eu_rights_str_mv |
openAccess |
dc.format.none.fl_str_mv |
application/pdf |
dc.publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
dc.publisher.program.fl_str_mv |
Programa de Pós-Graduação em Manejo de Solo e Água |
dc.publisher.initials.fl_str_mv |
UFERSA |
dc.publisher.country.fl_str_mv |
Brasil |
publisher.none.fl_str_mv |
Universidade Federal Rural do Semi-Árido |
dc.source.none.fl_str_mv |
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bitstream.checksum.fl_str_mv |
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bitstream.checksumAlgorithm.fl_str_mv |
MD5 MD5 MD5 MD5 |
repository.name.fl_str_mv |
Biblioteca Digital de Teses e Dissertações da UFERSA - Universidade Federal Rural do Semi-Árido (UFERSA) |
repository.mail.fl_str_mv |
direcaosisbi@ufersa.edu.br|| direcaosisbi@ufersa.edu.br |
_version_ |
1766778966290464768 |