Effective decontamination of Ca2+ and Mg2+ hardness from groundwater using innovative muscovite based sodalite in batch and fixed-bed column studies; dynamic and equilibrium studies

Salam, Mohamed Abdel; Adlii, Alyaa; Eid, Mohamed Hamdy; Abukhadra, Mostafa R.

doi:10.1016/j.jconhyd.2021.103817

Cited by 14 publications

(16 citation statements)

References 56 publications

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“…Therefore, developing a new method of removing excessive Ca 2+ and Mg 2+ from water has important application prospects [2]. At present, the methods for Ca 2+ and Mg 2+ removal from water mainly include precipitation [3], boiling [4], use of lime-soda ash [5], ion exchange [6], electrodialysis [7], and adsorption [8,9]. Among such treatment methods, the adsorption method has attracted much attention in recent years because of its advantages of simple operation, recyclability, and low cost [10,11].…”

Section: Introductionmentioning

confidence: 99%

Effective Removal of Calcium and Magnesium Ions from Water by a Novel Alginate–Citrate Composite Aerogel

Wang

Feng

Yang

et al. 2021

Gels

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In this work, a novel alginate/citrate composite aerogel (CA–SC) was synthesized by chemical grafting technology combined with vacuum freeze-drying method, and CA–SC was used for removing calcium (Ca2+) and magnesium (Mg2+) ions from water. The experimental results indicate that the as-prepared CA–SC has a high affinity for Ca2+ and Mg2+ and can remove 96.5% of Ca2+ (or 96.8% of Mg2+) from the corresponding solution. The maximum adsorption capacities of CA–SC for Ca2+ and Mg2+ are 62.38 and 36.23 mg/g, respectively. These values are higher than those of the most reported Ca2+-sorbents and Mg2+-sorbents. The CA–SC adsorbent can be regenerated through a simple pickling step, and its adsorption performance keeps stable after repeated use. Analysis of the adsorption mechanism shows that the CA–SC combines Ca2+ and Mg2+ in water mainly through coordination effect.

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Section: Introductionmentioning

confidence: 99%

Effective Removal of Calcium and Magnesium Ions from Water by a Novel Alginate–Citrate Composite Aerogel

Wang

Feng

Yang

et al. 2021

Gels

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“…The concentrations of calcium and magnesium in drinking water vary from 2.40 to 28.05 mg/L and from 0.07 to 0.68 mg/L respectively. These values are below the maximum limit authorized by the WHO in drinking water, which is 75 mg/L for Ca 2+ and 50 mg/L for Mg 2+ (Salam et al, 2021). The total hardness recorded values that oscillate between 3.29 mg/L and 74.72 mg/L.…”

Section: Physico-chemical Parameters Of Watermentioning

confidence: 70%

Assessing Levels and Health Risks of Fluoride and Heavy Metal Contamination in Drinking Water

Sanou¹,

Meite²,

Kouyaté³

et al. 2022

GEP

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A systematic study was carried out to assess the level of contamination with fluorides and heavy metals in the drinking water of the city of Daloa as well as the risks to the health of consumers. The waters of 11.11% of the sites sampled exceeded the fluoride limit for drinking water with a contamination index (CI) greater than 0. All the waters recorded concentrations of cadmium (Cd), copper (Cu), iron (Fe), manganese (Mn) and lead (Pb) above the recommended values with CI > 0. However, 22.22% of the sites recorded concentrations below the standard for zinc (Zn) with IC < 0. The assessment of adverse effects on human health showed that the chronic daily intake (CDI) of fluorine and metals was less than 1 (CDI < 1) for both adults and children except for Zn where the CDI > 1 for children in 22.22% of drinking water studied. HQs have an average of less than 1 for fluorine and greater than 1 for all metals. Moreover, the danger indices have values greater than 1. The incremental lifetime cancer risk (ILCR) and the total ILCR are above the recommended values. These results showed that the drinking water sampled is of

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“…The average concentration of the total hardness is 1097 indicates very hard water which increases the risk of heart and cardiovascular disease. Decontamination of hardness from groundwater can be done by using natural materials such as Muscovite-based sodalite (Salam et al, 2021). Using brackish water for irrigation will have an adverse effect on the soil and crop production by changing the environment of the soil.…”

Section: Sodium Adsorption Ratio (Sar)mentioning

confidence: 99%

Hydrogeochemical Evaluation of Groundwater and its Suitability for Drinking and Irrigation Using Water Quality Index, Statistical and Geochemical Modelling, Debila and El-Oued regions, Algeria

Eid

Tamma

Péter

et al. 2022

Preprint

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The study area is located in the Debila and El-Oued regions in the northeast of the Algeria desert. The water samples were collected from the semi-confined Mio-Pliocene and Lower Pontian aquifers. Physicochemical parameters such as temperature, pH, EC, TDS, and major ions were measured and compared with WHO standards. There is significant water quality deterioration because of strong mineralization and anthropogenic activities. The hydrogeochemical evaluation of groundwater revealed that evaporation, dissolution of gypsum, and reverse ion exchange are the main controlling factors of the water composition in the study area. The two main hydro-chemical facies of the groundwater in the deep aquifers are Ca2+–Mg2+–Cl/SO42− and Na+–Cl−. The water quality index (WQI) was calculated by using the weighted arithmetic method to determine the suitability of water for drinking. The groundwater in Debila and El-Oued regions is not suitable for drinking. The groundwater is suitable for irrigation according to Sodium adsorption ratio (SAR), Na%, Magnesium risk (MR), Permeability Index (PI), and residual Sodium carbonate index (RSC). The values of the saturated index (SI) indicated that the groundwater is undersaturated with halite, anhydrite, and gypsum but saturated to oversaturated by calcite, aragonite, and dolomite.The groundwater in the Debila and El-Oued regions is classified as brackish water. Using brackish water for drinking and irrigation will have an adverse effect on human health and increase soil salinity and decrease plant production. There is no need for using fertilizers containing calcium where the SAR has a low to medium value and the soil will not be affected by sodification or decrease in the capacity of infiltration.

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Effective decontamination of Ca2+ and Mg2+ hardness from groundwater using innovative muscovite based sodalite in batch and fixed-bed column studies; dynamic and equilibrium studies

Cited by 14 publications

References 56 publications

Effective Removal of Calcium and Magnesium Ions from Water by a Novel Alginate–Citrate Composite Aerogel

Effective Removal of Calcium and Magnesium Ions from Water by a Novel Alginate–Citrate Composite Aerogel

Assessing Levels and Health Risks of Fluoride and Heavy Metal Contamination in Drinking Water

Hydrogeochemical Evaluation of Groundwater and its Suitability for Drinking and Irrigation Using Water Quality Index, Statistical and Geochemical Modelling, Debila and El-Oued regions, Algeria

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