Geochemical processes influencing groundwater quality for drinking and irrigation uses in Hombolo catchment

This study identifies the major geochemical processes that regulate groundwater quality in the Hombolo catchment to make it suitable for drinking and irrigation purposes. The major cations and anion concentrations were used to develop the major geochemical processes governing the groundwater quality...

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Main Author: Malugu M. Tembo
Format: Article
Language:English
Published: IWA Publishing 2022-05-01
Series:Water Practice and Technology
Subjects:
Online Access:http://wpt.iwaponline.com/content/17/5/1129
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author Malugu M. Tembo
author_facet Malugu M. Tembo
author_sort Malugu M. Tembo
collection DOAJ
description This study identifies the major geochemical processes that regulate groundwater quality in the Hombolo catchment to make it suitable for drinking and irrigation purposes. The major cations and anion concentrations were used to develop the major geochemical processes governing the groundwater quality. The major geochemical processes were evaluated using historical data gathered from 1983 to 2018. The developed geochemical processes indicated the mineral dissolution, ion exchange and evaporation were the dominant that influence groundwater quality in the catchment using mole ratio concept and Gibbs diagram. The suitability of groundwater for irrigation was evaluated using the permeability index (PI), sodium adsorption ratio (SAR), and percentage soluble sodium (PSS) while the suitability of groundwater for drinking was evaluated using the water quality index (WQI). The sodicity indicated to have the average SAR of 5.16 as excellent class, average PSS of 50.89 as permissible to good class and average PI of 74.47 as suitable class level. The groundwater for drinking use indicated the WQI of 104 as poor class level. The groundwater is suitable for irrigation activities but the quality for drinking is deteriorating with time. HIGHLIGHTS The geochemical processes governing groundwater chemistry are explained.; In turn, it raises the community's attention about the groundwater quality problems and pushes them to avoid practices that contribute to the deterioration of groundwater quality near the groundwater resources.; It assists policymakers and management personnel in better utilizing the gathered pieces of information for better groundwater management.;
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spelling doaj.art-91836868520e4e5c8097b3c1696b72b72022-12-22T02:49:17ZengIWA PublishingWater Practice and Technology1751-231X2022-05-011751129114510.2166/wpt.2022.049049Geochemical processes influencing groundwater quality for drinking and irrigation uses in Hombolo catchmentMalugu M. Tembo0 Department of Mining and Mineral Processing Engineering, College of Earth Sciences and Engineering, The University of Dodoma, P. O. Box 259, Dodoma, Tanzania This study identifies the major geochemical processes that regulate groundwater quality in the Hombolo catchment to make it suitable for drinking and irrigation purposes. The major cations and anion concentrations were used to develop the major geochemical processes governing the groundwater quality. The major geochemical processes were evaluated using historical data gathered from 1983 to 2018. The developed geochemical processes indicated the mineral dissolution, ion exchange and evaporation were the dominant that influence groundwater quality in the catchment using mole ratio concept and Gibbs diagram. The suitability of groundwater for irrigation was evaluated using the permeability index (PI), sodium adsorption ratio (SAR), and percentage soluble sodium (PSS) while the suitability of groundwater for drinking was evaluated using the water quality index (WQI). The sodicity indicated to have the average SAR of 5.16 as excellent class, average PSS of 50.89 as permissible to good class and average PI of 74.47 as suitable class level. The groundwater for drinking use indicated the WQI of 104 as poor class level. The groundwater is suitable for irrigation activities but the quality for drinking is deteriorating with time. HIGHLIGHTS The geochemical processes governing groundwater chemistry are explained.; In turn, it raises the community's attention about the groundwater quality problems and pushes them to avoid practices that contribute to the deterioration of groundwater quality near the groundwater resources.; It assists policymakers and management personnel in better utilizing the gathered pieces of information for better groundwater management.;http://wpt.iwaponline.com/content/17/5/1129drinking purposegeochemical processeshombolo catchmentpercentage soluble sodiumpermeability indexsodium adsorption ratiowater quality index and irrigation purpose
spellingShingle Malugu M. Tembo
Geochemical processes influencing groundwater quality for drinking and irrigation uses in Hombolo catchment
Water Practice and Technology
drinking purpose
geochemical processes
hombolo catchment
percentage soluble sodium
permeability index
sodium adsorption ratio
water quality index and irrigation purpose
title Geochemical processes influencing groundwater quality for drinking and irrigation uses in Hombolo catchment
title_full Geochemical processes influencing groundwater quality for drinking and irrigation uses in Hombolo catchment
title_fullStr Geochemical processes influencing groundwater quality for drinking and irrigation uses in Hombolo catchment
title_full_unstemmed Geochemical processes influencing groundwater quality for drinking and irrigation uses in Hombolo catchment
title_short Geochemical processes influencing groundwater quality for drinking and irrigation uses in Hombolo catchment
title_sort geochemical processes influencing groundwater quality for drinking and irrigation uses in hombolo catchment
topic drinking purpose
geochemical processes
hombolo catchment
percentage soluble sodium
permeability index
sodium adsorption ratio
water quality index and irrigation purpose
url http://wpt.iwaponline.com/content/17/5/1129
work_keys_str_mv AT malugumtembo geochemicalprocessesinfluencinggroundwaterqualityfordrinkingandirrigationusesinhombolocatchment