Geochemical Evolution of Groundwater in Meng Xu Area, Gui Ping City, Southern China

Sadek, Younes

doi:10.1016/j.proeng.2012.01.1213

Cited by 7 publications

(4 citation statements)

References 7 publications

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“…This involves combination of mineral phases, initial and final solution to explain chemical changes such as precipitation and dissolution. Researchers have used inverse modelling to identify pollution sources in both groundwater and surface water using complex real-life scenarios to quantify uncertainties at reduced cost (Sharif et al, 2007;Younes, 2012;Peikam and Jalali, 2016;Moghaddan, et al, 2021).…”

Section: Introductionmentioning

confidence: 99%

“…Peikam and Jalali (2016) used multivariate analysis and inverse modelling to study evolution of surface water chemistry in a watershed and found that changes of water chemistry along the flow path happened as a result of precipitation of feldspars and andalusite as well as dissolution of sylvite and kaolinite. Younes (2012) investigated the evolution of groundwater in Southeastern China with PHREEQC and found the minerals that dissolved to give rise to the water chemistry, through chemical processes such as dissolution, dedolomization and ion exchange. Accurate identification of sources of contaminant using modelling of spatial concentration data from observation points depends on the 91 Ifeoma Mary Ugwu, Department of Geology and Mining Engu State, University of Science and Technology Abani Nigeria.…”

Section: Introductionmentioning

confidence: 99%

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Application of inverse modelling for prediction of the surface water chemistry of the ekulu river in enugu, southeastern nigeria

Ugwu¹

2023

Glo Jnl Pure Appl Sci

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Surface water chemistry evolution of Ekulu River was conducted by inverse geochemical modelling using the PHREEQC computer program. In this study, samples were collected from the Ekulu river at 100m intervals, and were taken to the laboratory for major anions and cations, heavy metal and bacterial content analyses. Inverse geochemical modelling results reveal that the river evolved as a result of dissolution of siderite, quartz, gypsum, galena, sphalerite, pyrolusite and precipitation of goethite and pyrite. The Piper diagram indicates Calcium-Chloride water type, with high Ca2+ + Mg+ and Cl- + SO42 contents, which is typical of water originated from gypsum dissolution and mine drainage. The results of the analyses show that the water cannot be recommended for drinking because the E. coli and coliform contents are higher than the permissible limits. The water chemistry of Ekulu river is as a result of secondary minerals dissolution and mine drainage from Onyeama coal mine whereas the microbial content resulted from pollution from recent faeces.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Application of inverse modelling for prediction of the surface water chemistry of the ekulu river in enugu, southeastern nigeria

Ugwu¹

2023

Glo Jnl Pure Appl Sci

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“…для виконання таких оцінок застосовують статистичні методи (Arslan, 2013;Bilgin, Konanc, 2016;Fatoba et al, 2017;Elkholly et al, 2017;Acikel, Ekmekci, 2018;кошляков, кошлякова, 2014 та ін.) і комплексне використання балансових методів, різних видів діаграм та метод геохімічного (термодинамічного) моделювання (Younes, 2012;Belkhiri et al, 2012b;Peikam, Jalali, 2016 та ін. ).…”

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“…детально засади використання програми PHREEQC при дослідженні геохімії підземних вод описані у роботі , де також представлена значна кількість прикладів використання цієї програми для інтерпретації експериментальних даних. такий комплексний підхід (балансовий метод та моделювання на PHREEQC) на даний час широко застосовується в світі Andrade, Stigter, 2011; Механізми формування хімічного складу питних підземних вод Київського родовища 2012b; Younes, 2012;Abdelshafy et al, 2019;Tay et al, 2018 та ін.). його можна вже вважати класичним для виконання робіт з оцінки взаємодій у системі «вода-порода» водоносних горизонтів та комплексів.…”

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THE FORMATION MECHANISMS OF COMPOSITION OF DRINKING GROUNDWATER OF THE Kyiv DEPOSIT (ON THE EXAMPLE OF THE OBOLON WATER INTAKE STRUCTURE)

Koliabina¹,

Шестопалов²,

Kasteltseva³

2021

Geol. ž.

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This paper presents the results of the assessment of interactions in the water-rock system using an integrated approach including the balance method and the method of geochemical (thermodynamic) modelling. Assessment is carried out for conditions of Cenomanian-Callovian and Bajocian aquifers within the Obolon groundwater intake structure in Kyiv. The results obtained demonstrate that groundwater of the Cenomanian-Callovian and Bajocian aquifers within the Obolon groundwater intake structure differ in chemical composition, physicochemical conditions, and especially in the formation of water composition due to the interactions in the water-rock system. This paper proposes division of water into groups, taking into account both the features of chemical composition and its formation process. The water group characterized by anomalous ratio of chlorine and sodium is distinguished, as well as the possible formation mechanism of this water composition is proposed. The chemical composition of the waters of both aquifers meets the requirements of Ukrainian legislation for drinking water quality (GSanPiN 2.2.4-171-10). Groundwater quality of the Cenomanian-Callovian complex is shown to be higher than that of the Bajocian aquifer. For both aquifers, the water of higher quality is the one with cationic composition determined largely by ion exchange. The ion exchange processes can be controlled to a certain extent by regulating the water withdrawal from the wells, and hence the water quality can be regulated in this way as well. Another way to regulate water quality could be the mixing of water from two aquifers during water treatment, which would, on the one hand, compensate the insufficient water quality of individual aquifers and, on the other hand, provide for continuous well operation contributing to the maintenance of more or less stable physicochemical processes. However, these hypotheses require further detailed consideration and, if confirmed, a detailed justification of their feasibility.

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Impact of rock-water interactions and recharge on water resources quality of the Agadir-Essaouira basin, southwestern Morocco

et al. 2017

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Geochemical Evolution of Groundwater in Meng Xu Area, Gui Ping City, Southern China

Cited by 7 publications

References 7 publications

Application of inverse modelling for prediction of the surface water chemistry of the ekulu river in enugu, southeastern nigeria

Application of inverse modelling for prediction of the surface water chemistry of the ekulu river in enugu, southeastern nigeria

THE FORMATION MECHANISMS OF COMPOSITION OF DRINKING GROUNDWATER OF THE Kyiv DEPOSIT (ON THE EXAMPLE OF THE OBOLON WATER INTAKE STRUCTURE)

Impact of rock-water interactions and recharge on water resources quality of the Agadir-Essaouira basin, southwestern Morocco

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