Determinação de Parâmetros Hidrodispersivos em Solos da Zona da Mata de Pernambuco

Moura, Albert; Carvalho, José Maria Franco de; Montenegro, Suzana; Carmo, André Inácio do; Magalhães, Adriana Guedes; Sousa, C.; Antonino, Antônio Celso Dantas; Araujo, José; Melo, Rogério

doi:10.21168/rbrh.v18n3.p109-115

Cited by 3 publications

(3 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In the study of pollutant transport in the soil, it is common to use tracers, i.e., chemicals easy to measure and that do not interact with soil, in order to trace water [26,33,34]. One of the most used tracers is bromide (Br-) at several scales in laboratory conditions [33][34][35][36][37][38][39] and in the field [26]. In view of what has been exposed here, the objective of the present study was to evaluate the mobility of RB5 dye and understand the dynamics of this solute transfer process in an alluvial deposit typical of the Alto Capibaribe River (Agreste of Pernambuco, Brazil).…”

Section: Introductionmentioning

confidence: 99%

Transport Behavior of RB5 Dye in Alluvial Soil in the Northeast of Brazil

Alves

Coutinho

Barros

et al. 2022

Water

View full text Add to dashboard Cite

The textile industry generates a large volume of chemically diversified effluents containing, among other compounds, dyes. Untreated wastes are contaminants to surface water, soil, and groundwater. In this aspect, various studies have explored the issue of contamination of alluvial soils in the Alto Capibaribe region, northeast of Brazil, due to local textile activity. This region, inserted into the Brazilian semiarid region, suffers from water scarcity, and there is a need for rural communities to use alluvial formations for water supply. The simulation of solute transport is a fundamental tool for understanding the environmental performance and risks associated with contamination by textile dyes. Transport parameters that directly influence pollutant dynamics in sedimentary environments are characterized. This study evaluated the retention and mobility of the dye Remazol Black 5 (RB5) in two superficial layers of alluvial soil from Alto Capibaribe to obtain transport parameters. In the laboratory, tests of mobility in soil columns with RB5 dye (concentration of the 25 mg L−1) and KBr tracer (concentration of the 35.7 g L−1) solutions were conducted. The CDE and two-region models were used to model the KBr experimental transport data, and the two-site model was used to model the RB5 experimental transport data. Physical non-equilibrium was found in the soils for KBr transport, and the two-region model adequately modeled the experimental breakthrough curves (BTCs). For the transport of RB5, the results showed a chemical non-equilibrium, and the two-site model was adequate to model the experimental BTCs. The results indicate that the surface layer is most responsible for the retention of RB5, where the RB5 solution was less mobile than in the lower layer. Both layers showed low retention and high mobility for RB5, indicating that the RB5 dye in the region may contaminate groundwater.

show abstract

Section: Introductionmentioning

confidence: 99%

Transport Behavior of RB5 Dye in Alluvial Soil in the Northeast of Brazil

Alves

Coutinho

Barros

et al. 2022

Water

View full text Add to dashboard Cite

show abstract

“…Several simulation models, such as STANMOD (STudio of ANalytical MODels) and HYDRUS-2D, have been developed over the years to simulate the movement of water and solutes in the soil (Moura et al, 2013). With the advancement of computer systems and the availability of models that simulate water flow and solute transport in soils, an increasing number of researchers have sought to evaluate the processes involved in the water displacement in irrigated soils with this system (Kandelous et al, 2011, Kandelous et al, 2012.…”

Section: Introductionmentioning

confidence: 99%

Simulation of Sodium and Potassium Dynamics by the Hydrus 2d Model in a Haplic Planosol via Residue Water

Andrade

Montenegro

Miranda³

et al. 2018

Eng. Agríc.

View full text Add to dashboard Cite

The application of chemical substances to the soil together with little attention given to the possible environmental impacts, transformed the environment into a recipient of waste. The aim of this study was to simulate the movement of water and solutes (sodium and potassium together) using the STANMOD and HYDRUS-2D models in a typical Haplic Planosol under the application of wastewater via surface irrigation under different flow rates. The experiment was conducted in the laboratory by miscible displacement tests, first using columns with deformed soil under saturation and steady water flow conditions, at a rate of 11.7 cm 3 min-1 , to obtain transport parameters of sodium and potassium ions, and in the applied residual water, the values of 475 and 76.6 mg dm-3 , respectively. The transport parameters were estimated from the numerical adjustment of effluent distribution curves, using the STANMOD model. In a second step, the HYDRUS-2D model was applied to simulate the volumetric soil moisture distribution profiles, as well as the ion concentrations in the wet bulb. Considering the results obtained, we can see that there was considerable interaction between the solutes and the soil. The value of the delay parameter was higher for the sodium when compared to the potassium, reflecting its greater adsorption and the processes of exchange between the solute and the soil. The results suggested the need for adequate soil management in order to avoid future soil sodification and, in view of the application of HYDRUS-2D, it was verified that the model presented a satisfactory performance in the simulation of the displacement of the ions, after 1, 5 and 10 hours of wastewater application.

show abstract

“…Andrade et al (2018) encontraram coeficiente de correlação de 0,96 com ótimo desempenho do modelo Moura et al (2013),. estudando os parâmetros hidrodispersivos em solos da Zona da Mata de Pernambuco, também encontraram r superiores a 0,98 e ótimo desempenho do STANMOD.…”

unclassified

Influência do substrato de pó de coco na lixiviação de água residuária

Assis

Montenegro

Farias

et al. 2021

Eng. Sanit. Ambient.

View full text Add to dashboard Cite

RESUMO Nas últimas décadas, têm-se observado o crescimento da demanda de água e o agravamento dos cenários de escassez hídrica, bem como a ampliação de alternativas de reuso de água de efluentes de qualidade inferior, em particular de esgotos domésticos tratados. Objetivou-se, com este trabalho, avaliar a influência do substrato de pó de coco no controle de transporte de solutos em solos irrigados com esgoto tratado doméstico. A água residuária doméstica tratada provém da Unidade Experimental de Tratamento e Reúso Hidroagrícola, no distrito de Mutuca-PE. O delineamento experimental foi em esquema fatorial (2 × 3), cujos fatores avaliados compreenderam dois tipos de solos típicos da região (Neossolo Litólico e Argissolo Amarelo) e três tratamentos (sem pó de coco, 1 cm de pó de coco e 2 cm de pó de coco), com cinco repetições. Os parâmetros de transporte dos íons sódio e potássio foram obtidos por ajuste numérico, utilizando-se o modelo STANMOD. Constatou-se a existência de interação com soluto, sódio e potássio, em solo arenoso. O modelo STANMOD apresentou ótimo desempenho na simulação do transporte de solutos no solo. A cobertura de pó de coco mostrou-se eficiente na diminuição da lixiviação de íons em ambos os solos estudados.

show abstract

Determinação de Parâmetros Hidrodispersivos em Solos da Zona da Mata de Pernambuco

Cited by 3 publications

References 8 publications

Transport Behavior of RB5 Dye in Alluvial Soil in the Northeast of Brazil

Transport Behavior of RB5 Dye in Alluvial Soil in the Northeast of Brazil

Simulation of Sodium and Potassium Dynamics by the Hydrus 2d Model in a Haplic Planosol via Residue Water

Influência do substrato de pó de coco na lixiviação de água residuária

Contact Info

Product

Resources

About