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The emitted CO 2 can be directly removed using Ca- and Mg-bearing precursors to produce Ca- and Mg-bearing carbonates. In the context of CO 2 capture …
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Q. While taking Calcium Carbonate+Sodium Alginate+Sodium Bicarbonate, which foods should be avoided? You should preferably avoid foods that cause acidity and heartburn as they will only worsen your condition, for example, fried or spicy food, butter, oil, juices, caffeinated drinks like cola or tea, drinks from citrus fruits like lemon water or orange …
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This study has investigated the effectiveness of the simultaneous removal of hardness-iron-manganese and the crystallization kinetics of calcium carbonate during …
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CaCO 3 is an odourless inorganic chemical compound known as Calcium Carbonate. It is one of the most well-known non-toxic chemical. It is found in rocks such as the minerals calcite and aragonite.; It is the primary …
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The potential of the synthesized nano-hydroxyapatite to remove Ni 2+ from aqueous solutions was investigated in batch reactor under different experimental conditions. The study also investigates the effects of process parameters such as initial concentration of Ni 2+ ion, temperature, and adsorbent mass. Various thermodynamic …
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Phosphorus, generally occurring as phosphate (PO 4 3−) in aqueous solutions [], is an essential amendment and nutrient for many industrial and agricultural applications and often present in water and …
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The removal of Ca and remaining Mg was executed by sodium oxalate addition where the calcium levels of the 10 M were able to be reduced to 5–6 ppm in solution.
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Recent studies have focused on a particular method for heavy metal ions removal, such as electrocoagulation (EC), adsorption using synthetic and natural adsorbents, magnetic field implementation ...
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A high loss ratio of lithium (Li+) and low removal efficiency of calcium (Ca2+) and magnesium (Mg2+) remain a major challenge so far in obtaining high-purity lithium products from a lithium-concentrated solution. In this work, a state-of-the-art separation and purification process including saponification, extraction, scrubbing, stripping, and …
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In the process of preparing high-purity MnSO4 from industrial MnSO4 solution, it is difficult to remove Ca2+ and Mg2+ due to their closely similar properties. In this study, thermodynamic software simulation and experimental procedures were combined to remove Ca2+ and Mg2+ from industrial MnSO4 solution to obtain high-purity …
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treating it as sludge moisture. To reach extremely high recoveries and avoid calcium carbonate deposition in membrane channels, a new approach is developed …
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Compared with the conventional solution, the calcium carbonate content of the Sporosarcina pasteurii (DSM 33) strain increased first and then dropped when the fluid pH changed from 4.5 to 6.5 under the condition of 1 × 10 8 cells/ml bacterial solution, calcium carbonate content reached the maximum at pH 6. Compared with traditional …
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A novel Pb(II) adsorbent is synthesized from magnetic carboxyl-functionalized attapulgite and sodium alginate. • The maximum adsorption capacity was determined to be 471.20 mg g –1 at 297.2 K.. A Pb(II) removal efficiency of >70% could be achieved after 6 × adsorbent recycling to remove Pb(II) from contaminated water.
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The cooled Alg solutions were dropped into the CaCl 2 solution by an automatic pipette at room temperature for cross-linking. The gelation procedure of particles lasted for 10 min. After that, the CaCl 2 solution was removed and 15 mL of Na 2 CO 3 (0.3 M) salt solution was quickly added to the reaction mixture. The mineralization of Alg ...
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1. Introduction. Calcium is the most abundant mineral in the human body. It is important for intracellular metabolism, bone growth, blood clotting, nerve conduction, muscle contraction and cardiac functions [1], [2].However, there is a significant protective association between drinking-water calcium levels and colorectal [3] gastric [4] and …
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1. Introduction. Inorganic materials have been widely used as drug carriers for controlled delivery because of their large specific surface area and easy surface functionalization [1], [2], [3], [4].Among the commonly used inorganic materials as drug carriers, calcium carbonate (CaCO 3) is especially attractive due to its excellent …
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The TA degradation efficiencies at different CaO 2 dosages are shown in Fig. 2 a. There is a minor TA loss (<10%) for the blank test (without CaO 2 addition). This TA loss was due to the hydrolysis as shown in Fig. S2.As shown in Fig. 2 a, over 99, 92, 90, 86, 82, and 78% of TA were removed in 60 min at the CaO 2 dosage of 4, 2, 1, 0.5, 0.1, and …
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Arsenic is a natural element present in the earth's crust that can appear in water through processes of chemical weathering or dissolution of minerals, or anthropogenic pollution due to mining activity, use of pesticides, use of fossil fuels, and the treatment of wood (Sarkar et al. 2006; Wang et al. 2020).Hence, the World Health Organization (WHO), in …
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Immediately after removal from the furnace, each crucible with the shell ash was placed in a desiccator to cool down without absorbing moisture from the air before being weighed again. Calcium carbonate content was calculated as the ash mass of the shell half, as a percentage of the dry mass of the shell half. ... Calcium in eggs has long …
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The reagent-grade chemicals used here including LiOH and HCl, etc. were all supplied from Laiyang Shuangshuang Chemical Co. Ltd., China. The LiHCO 3 solution with concentration of 1.35 mol·L − 1 was prepared by carbonation of crude Li 2 CO 3 with CO 2 –water solutions in a three-phase mechanically agitated reactor. The crude Li 2 …
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Calcium carbonate, in nature, also commonly dissolves. It's just not as immediate as dissolution of the more soluble ionic compounds. You are probably familiar with this phenomenon: This forms because calcium carbonate dissolves. The rock is limestone, which is usually composed of pure calcium carbonate.
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Consequently, removal of fluoride from coal mining water would be of practical significance to enhance its utilization efficiency and alleviate the water shortage in the mining areas. Adsorption is the practical technology for removal of fluoride from water with low-concentration fluoride (e.g. <10 mg/L).
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Calcium is one of the divalent ions contributing to the hardness level of the water. This work describes the removal of calcium ions from aqueous solution using carbonate salts as precipitants and the recovery of homogeneous calcium carbonate crystals via a fluidized-bed homogeneous crystallization (FBHC) process without a …
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The present study shows upon, electrochemical removal of Ca 2+ and Mg 2+ ions from aqueous solutions. Calcite and brucite precipitation occurs through a …
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The aim of the presented studies was to evaluate the removal efficiency of heavy metal cations: Cu, Zn and Pb from aqueous solutions while using various biosorbents and calcium carbonate in two...
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CNTs/CA fibers were kept in the calcium chloride solution for 12 h and washed several times and then dried at −50 °C by a Freeze Dryer (FD-1B-50).2.2. Batch adsorption experimentsCopper (II) stock solution (1000 mg/L) was prepared by dissolving the analytical reagent grade copper nitrate (AIBI, Shanghai, China) in deionized water. …
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Further, EC and pH measurements were taken on an aseptic bench. The bacterial solution was first inoculated into the urea and Pb(NO 3) 2 mixture in the ratio of 1:9 and 1:3, respectively. When subjected to the effect of calcium source, 0.25 M of CaCl 2 or Ca(CH 3 COO) 2 was added prior to the bacterial
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Calcium carbonate (CaCO3), chemical compound consisting of one atom of calcium, one of carbon, and three of oxygen that is the major constituent of limestone, marble, chalk, eggshells, bivalve shells, and corals. Calcium carbonate is either a white powder or a colorless crystal. When heated, it
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To observe the removal of the copper ions, a solution of 500 ppm of copper sulfate, which has a blue colour was used; after the flotation process using the surfactant, the colour clearly disappeared, showing the efficiency of the process in removing the copper ions and supporting the data obtained with the ion-probe meter (Fig. 10) (Taseidifar ...
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Table 3 shows the concentration of Mg present in solution after the interaction processes. In absence of calcium cations Mg release increased progressively with Cd sorbed amounts, whereas at high Ca concentrations (0.05 and 0.1 mol/l) the Mg concentrations in solution remained more or less constant.This behaviour is consistent …
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