Avaliação qualitativa das águas subterrâneas para irrigação na região do baixo jaguaribe – ceará

Barroso, Andréia de Araújo Freitas; Ness, Ricardo Luiz Lange; Filho, Raimundo Rodrigues Gomes; Silva, Francisco Limeira da; Chaves, Maria Juciene Lima; Lima, Cleisce Agostinho de

doi:10.7127/rbai.v4n300011

Cited by 6 publications

(6 citation statements)

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“…Probably, the higher sodium contents are due to higher water withdrawals from these underground wells, associated to the low rainfall period, as a consequence the salts become more concentrated, indicating that they need to be cautious about the use of this water for irrigation, choosing crops adapted to these conditions. In the municipality of Limoeiro do Norte, Ceará states, Barroso et al (2010) found lower Na + values than in this study 9.03 and 8.03 mmol c L -1 , in the months of July and August, respectively. In the Chapada do Apodi-CE, Fernandes et al (2005) found Na + values ranged 65.4-160.6 mg L -1 , corresponding to 2.84 to 6.98 mmol c L -1 .…”

Section: Sar Hardness Cations Anionscontrasting

confidence: 84%

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Water Quality of Underground Wells in Limoeiro do Norte, Brazilian Northeast

Rodrigues¹,

Silva²,

Farias³

et al. 2019

JAS

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The objective of this work was to assess the physicochemical and microbiological characteristics, as well as the potential of salinization and sodification of groundwater wells in Limoeiro do Norte, Ceará states, Brazil. Six water wells were selected for the study, all of them used for irrigation and human consumption. The ionic classification was performed by Piper Diagram and the salinity risk using the U.S.S.L. (United States Salinity Laboratory) Diagram using Qualigraf software. Based on the average chemical element concentration (mmolc L-1) in the groundwater, the following quantification is obtained: Na+ > Ca2+ > Mg2+ > K+ for cations. For anions there was a change in the the wells, for the 1, 3 and 4 Cl- > HCO3- > SO42- > CO32- and wells 2, 5 and 6 HCO3- > Cl- > SO42- > CO32-. The wells 1, 2 and 3 have severe restrictions for use by SAR (sodium absorption ratio) and Na+ content. Water from wells 1, 3 and 5 were classified as sodium chloride, 2 and 6 were classified as sodium bicarbonate and well 4 as calcium magnesium sulfate. With the exception of well 6 classified as freshwater, all other wells were classified as brackish water. Groundwater samples fall in C3S1 or C3S2 category with high salinity and low or medium sodium hazard. With the exception of Na+, whose value was above the limit allowed, no well with groundwater was detected chemical hazard for human consumption. There was the detection of Total coliforms, but in well 5 the presence of Thermotolerant coliforms was detected.

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Section: Sar Hardness Cations Anionscontrasting

confidence: 84%

“…There are no severe restrictions on carbonate or bicarbonate content for irrigation (Nakayama & Bucks, 1986). Barroso et al (2010) found lower values for bicarbonate in groundwater in Limoeiro do Norte-CE (1.72 to 1.95 mmol c L -1 ). For sulphate (SO 4 2-) the lowest value was in well 6 (0.59 mmo c L -1 ).…”

Section: Sar Hardness Cations Anionsmentioning

confidence: 71%

Water Quality of Underground Wells in Limoeiro do Norte, Brazilian Northeast

Rodrigues¹,

Silva²,

Farias³

et al. 2019

JAS

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“…Uma característica inerente aos métodos de irrigação localizados é a pequena área de passagem da água nos emissores. Em função dos pequenos diâmetros de orifício, o entupimento dos emissores configura-se como um dos principais problemas relacionados ao método (GILBERT; FORD, 1986) Segundo Ribeiro et al (2004) que para o bom desempenho de um sistema de irrigação é necessário levar em consideração fatores como qualidade da água e presença de partículas inorgânicas e orgânicas além dos relativos ao funcionamento mecânico do sistema De acordo com Barroso et al (2010), para o estudo da qualidade da água para fins de irrigação, dá se destaque à composição química da água, embora as características físicas e a carga de sedimentos devem ser consideradas importantes. Na irrigação localizada, um dos fatores que eleva os custos de operação e manutenção do sistema e, em certos casos, inviabiliza a utilização desse método é a obstrução dos emissores (PATERNIANI; SCATOLINI, 2001).…”

Section: Introductionunclassified

Análise dos riscos à sistemas de irrigação causados pela qualidade da água do Córrego do Coqueiro - SP

Barboza¹,

Hernández

Franco³

2011

RBAI

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RESUMOO objetivo deste trabalho foi avaliar a concentração de ferro total, sólidos suspensos, dissolvidos, totais e turbidez na água do Córrego do Coqueiro. Para isso, foram coletadas amostras de água ao longo do rio principal, mensalmente no período de 2007 a 2009 em 5 pontos georreferenciados. Conforme os resultados apresentados, o manancial possui baixo potencial de causar danos ao sistema de irrigação para os parâmetros físicos, no entanto, devido a concentração de ferro na água o manancial apresentou médio a alto potencial de risco ao sistema de irrigação, sendo assim, a utilização de sistemas de irrigação sem filtragem, principalmente nos sistemas localizados, pode causar risco de obstrução de tubulações e emissores, principalmente nos pontos finais do manancial. Palavras-chave: degradação, obstrução, monitoramento. RISKS ANALYSIS TO IRRIGATION SYSTEMS CAUSED BY WATER QUALITY IN THE CÓRREGO DO COQUEIRO -SÃO PAULO STATEABSTRACT This study aimed to evaluate the concentration of total iron, suspended, dissolved and total solids and turbidity in the Coqueiro stream. For this, water samples were collected along the main river, monthly during 2007 to 2009 at five points georeferenced. According the results, the watershed has a low potential to cause damage to the irrigation system for the physical parameters, however, because the concentration of iron in the water fountain had a medium to high potential risk to the irrigation system, the use of irrigation systems without filtration, particularly in localized systems, there is a risk with obstruction of pipes and emitters, especially in the final points of the watershed.

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“…The TDS and EC in streams are usually higher during low flow periods than during high flow periods. The semiarid zone is characterized as a region of high temperatures and high temporal and spatial rainfall variability; therefore, water shortage is the major limiting factor in agricultural production (BARROSO et al, 2010). …”

Section: Hydrochemistry Assessmentmentioning

confidence: 99%

“…The samples were collected both at the end of the dry periods (December 2009 and2010) and during rainy days (August 2009 and 2010) of each hydrologic period, thus totaling four sampling times. Some dams dried up at the end of the 2010 rainy season and so it was not possible to sample all points.…”

Section: Area and Collection Of Samplesmentioning

confidence: 99%

Mechanisms Controlling Surface Water Quality in the Cobras River Sub-Basin, Northeastern Brazil

et al. 2017

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-Stream water quality is dependent on many factors, including the source and quantity of the streamflow and the types of geology and soil along the path of the stream. This study aims to evaluate the origin and the mechanisms controlling the input of ions that effect surface water quality in the sub-basin of the Rio das Cobras, Rio Grande do Norte state, Northeastern Brazil. Thirteen ponds were identified for study: three in the main river and ten in the tributaries between, thus covering the whole area and lithology of the sub-basin. The samples were collected at two different times (late dry and rainy periods) in the hydrological years 2009 and 2010, equating to total of four collection times. We analyzed the spatial and seasonal behavior of water quality in the sub-basin, using Piper diagrams, and analyzed the source of the ions using Guibbs diagram and molar ratios. With respect to ions, we found that water predominate in 82% sodium and 76% bicarbonate water (cations and anions, respectively). The main salinity control mechanism was related to the interaction of the colloidal particles (minerals and organic sediment) with the ions dissolved in water. Based on the analysis of nitrates and nitrites there was no evidence of contamination from anthropogenic sources.Keywords: Desertification. Semiarid. Salinity. MECANISMOS CONTROLADORES DA QUALIDADE DAS ÁGUAS SUPERFICIAIS NA SUB-BACIA HIDROGRÁFICA DO RIO DAS COBRAS DO NORDESTE BRASILEIRORESUMO -A qualidade da água de um rio dependente de vários fatores, incluindo a origem e quantidade de escoamento e a formação geologia dos solos ao longo do fluxo. Objetivou-se avaliar a origem e os mecanismos controladores da entrada dos íons e, consequentemente, da qualidade da água na sub-bacia do rio das Cobras, RN. Foram selecionados 13 açudes, sendo 3 no rio principal e 10 entre os afluentes, abrangendo toda a área e litologias da sub-bacia. As amostras foram coletadas em duas épocas distintas (final dos períodos secos e chuvosos) nos anos hidrológicos de 2009 e 2010, totalizando 4 momentos de coleta. Analisou-se o comportamento espacial e sazonal da qualidade da água na sub-bacia utilizando o diagrama de Piper e a origem dos íons pelo diagrama de Gibbs e razão molar. Constatou-se que em relação aos íons, predominam águas sódicas em 82% e águas bicarbonatadas 76% (cátions e ânions), respectivamente. Os resultados obtidos sugerem que o principal mecanismo controlador da salindiade está relacionado a interação das partículas coloidais (sedimentos orgânicos e minerais) com os íons dissolvidos na água. Também não se observou indícios de contaminação antrópica na área, tendo por base a análise de nitratos e nitritos.Palavras-chave: Desertificação. Semiárido. Salinidade.

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Avaliação qualitativa das águas subterrâneas para irrigação na região do baixo jaguaribe – ceará

Cited by 6 publications

References 1 publication

Water Quality of Underground Wells in Limoeiro do Norte, Brazilian Northeast

Water Quality of Underground Wells in Limoeiro do Norte, Brazilian Northeast

Análise dos riscos à sistemas de irrigação causados pela qualidade da água do Córrego do Coqueiro - SP

Mechanisms Controlling Surface Water Quality in the Cobras River Sub-Basin, Northeastern Brazil

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