A critical review on cadmium recovery from wastewater towards environmental sustainability

Mashhadikhan, Samaneh; Amooghin, Abtin Ebadi; Sanaeepur, Hamidreza; Shirazi, Mohammad Mahdi A.

doi:10.1016/j.desal.2022.115815

Cited by 31 publications

(10 citation statements)

References 205 publications

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“…Moreover, significant exposure to lead poisoning leads to neonatal deaths, abortions, still births, etc . Similarly, cadmium is also considered as one of the toxic metals, the Cd 2+ ions lead to the formation of bioaccumulation in human bodies . Cd 2+ can cause cardiac failure, renal toxicity, bone damage, gastrointestinal disease, breast cancer, etc .…”

Section: Introductionmentioning

confidence: 99%

“…Similarly, cadmium is also considered as one of the toxic metals, the Cd 2+ ions lead to the formation of bioaccumulation in human bodies . Cd 2+ can cause cardiac failure, renal toxicity, bone damage, gastrointestinal disease, breast cancer, etc . On the other hand, aqueous waste consisting of Cd 2+ /Pb 2+ originating from industries such as mining, smelting, and battery industries are highly acidic in nature. − Therefore, separating these toxic metal ions from the aqueous wastewater and industrial effluent water is necessary to before they are released into the environment.…”

Section: Introductionmentioning

confidence: 99%

“…6 Cd 2+ can cause cardiac failure, renal toxicity, bone damage, gastrointestinal disease, breast cancer, etc. 6 On the other hand, aqueous waste consisting of Cd 2+ /Pb 2+ originating from industries such as mining, smelting, and battery industries are highly acidic in nature. 7−9 Therefore, separating these toxic metal ions from the aqueous wastewater and industrial effluent water is necessary to before they are released into the environment.…”

Section: Introductionmentioning

confidence: 99%

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Molecular Simulations of Understanding Separation of Cadmium and Lead Ions from Aqueous Waste Water Using Directional Solvent Extraction

Sappidi,

Rai

2023

Ind. Eng. Chem. Res.

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In this paper, we present an all-atomistic molecular dynamics simulation study to understand the separation of cadmium (Cd 2+ ) and lead (Pb 2+ ) from the aqueous waste using directional solvent extraction (DSE) using decanoic acid (DEC) as an extractant. Different structural, dynamic, and thermodynamic properties were evaluated such as mass density profiles, radial distribution functions, self-diffusion, solvation free energy (ΔG Solv ), and transfer free energy (ΔG Transfer ). The peak intensity of mass density distribution of Cd(NO 3 ) 2 and Pb(NO 3 ) 2 shows an increase with an increase in temperature (T). The radial distribution function between the Cd 2+ and NO 3 − and Pb 2+ and NO 3 − shows a significantly higher interaction with the maximum interaction between Cd 2+ and NO 3 − . Compared to the intermolecular structure between bulk water and solvent mixed systems, we observe that metal ion water interactions are higher in bulk water, which start to decrease in the presence of a solvent. We further investigate thermodynamic analysis using free energy simulations. The ΔG Solv of Cd 2+ and Pb 2+ becomes favorable with an increase in T in DEC, while it becomes unfavorable in H 2 O. The ΔG Transfer of Cd 2+ and Pb 2+ from H 2 O to DEC becomes favorable with an increase in T. The partition coefficient (log P) values show positive values for Cd 2+ and Pb 2+ . The self-diffusion (D) of metal ions shows a 60% decrease for Cd 2+ and a 75% decrease for Pb 2+ compared to their D values in bulk water. The D values of H 2 O increase with T. Overall, we observe that the H 2 O, solvent, and metal ions are sensitive to the temperature. These molecule-level results help in guiding the solvent design for separating heavy metal ions using DSE.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Molecular Simulations of Understanding Separation of Cadmium and Lead Ions from Aqueous Waste Water Using Directional Solvent Extraction

Sappidi,

Rai

2023

Ind. Eng. Chem. Res.

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“…The presence of heavy metals in nature can arise from environmental processes like volcanic emissions and rock weathering (Jan et al, 2015;Mason et al, 2021). On the other hand, anthropogenic activities include mercury (Hg) contamination from gold mining, lead (Pb) from its use as a gasoline additive, and Cd from fertilizers, batteries, and sewage water (Sevim et al, 2020;Mashhadikhan et al, 2022). Human activities are contaminating the environment and its resources; these activities are discharging heavy metals at concentrations greater than what the environment can handle (Masindi and Muedi, 2018).…”

Section: Introductionmentioning

confidence: 99%

Comparison of cell size, chlorophyll fluorescence and cadmium (Cd2+) bioaccumulation between wild-type and mutant strains of Chlamydomonas reinhardtii upon exposure to Cd2+

2023

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Background: Heavy metal contamination presents a constant threat to biological systems. Simultaneously, heavy metals have become one of the major contaminants in the aquatic ecosystems. In this regard, the investigation of heavy metal-tolerance genes in algae is relevant. Chlamydomonas reinhardtii is a unicellular green alga, and an excellent model organism used in heavy metal studies. In C. reinhardtii, a novel gene designated as Cia7, was hypothesized to play a role in heavy metal homeostasis due to CIA7’s conserved cysteine-residue motif. This study compared two strains of C. reinhardtii, cc4425, the wild-type with the functional CIA7 protein and cc5013, the mutant strain with the disrupted cia7- gene. The hypothesis was that the expression of Cia7 contributes to an increased cadmium (Cd)-tolerance in C. reinhardtii. The Cd-tolerance would be described by physiological markers of microalgae health, and by intracellular accumulation of the metal. Methods: The objectives of this study were (1) to compare chlorophyll fluorescence and cell size in cc4425 and cc5013 exposed to Cd2+, and (2) to compare Cd2+ bioaccumulation in cc4425 and cc5013 strains in different growth media. Flow cytometry, and inductively coupled plasma optical emission spectrometry (ICP-OES) analysis were performed. Results: There was no significant statistical difference in Cd2+ bioaccumulation between the two strains, cc4425 and cc5013, regardless of growth media. However, a statistically significant difference in Cd2+ bioaccumulation (p<0.0001) was determined between the media (with acetate and without acetate). The cia7- mutant, cc5013 was found to be more susceptible to a Cd2+-induced decrease in chlorophyll fluorescence and had a reduced cell size compared to cc4425, the wild-type strain. Conclusions: These observed differences between the strains suggest that CIA7’s biological activity could play a direct or indirect role in increasing Cd tolerance in C. reinhardtii.

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“…Among the known heavy metals, Cd is one of the most toxic due to its bioaccumulation in human and animal bodies; moreover, it is almost non-biodegradable, even at low concentrations [ 3 , 4 ]. The majority of Cd contamination in water and wastewater originates from ore processing plants, metal refineries’ discharges, mine drainage water, waste batteries’ runoff, the manufacture of phosphate fertilizers and pesticides, pigment production, printing, the photographic industry, and rainwater runoff from mining areas [ 5 , 6 ]. In aqueous media, Cd is shown as Cd 2+ , a highly mobile divalent heavy metal ion that can be easily carried by water and wastewater, leading to the widespread release of this poisonous element [ 7 ].…”

Section: Introductionmentioning

confidence: 99%

Screening and Optimization of Conditions for the Adsorption of Cd2+ in Serpentine by Using Response Surface Methodology

Zhang

Wen-juan

2022

IJERPH

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In order to explore the optimal conditions for the adsorption of Cd2+ in serpentine, this paper studied the adsorption of simulated cadmium solutions with serpentine as an adsorbent. On the basis of a single factor experiment, four factors including the amount of serpentine, initial pH, the initial concentration of solutions, and adsorption time were selected as the influencing factors, and the adsorption quantity and adsorption rate of serpentine to Cd2+ were double response values using the Box–Behnken design. Response surface analyses were used to study the effects of four factors on the adsorption quantity and adsorption rate of serpentine on cadmium, and the interaction between various factors. The results showed that the optimum adsorption conditions were as follows: the amount of serpentine was 1%, the initial pH was 5.5, the initial solution concentration was 40.83 mg·L−1, and the adsorption time was 26.78 h. Under these conditions, the theoretical adsorption quantity and adsorption rate of serpentine to Cd2+ were 3.99 mg·g−1 and 95.24%, respectively. At the same time, after three repeated experiments, the actual adsorption quantity and adsorption rate of serpentine to Cd2+ were 3.91 mg·g−1 and 94.68%, respectively, and the theoretical value was similar to the actual value. Therefore, it was proved that the experimental design of the regression model is reliable, and it is feasible to use the response surface method to optimize the adsorption conditions of serpentine on Cd2+.

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A critical review on cadmium recovery from wastewater towards environmental sustainability

Cited by 31 publications

References 205 publications

Molecular Simulations of Understanding Separation of Cadmium and Lead Ions from Aqueous Waste Water Using Directional Solvent Extraction

Molecular Simulations of Understanding Separation of Cadmium and Lead Ions from Aqueous Waste Water Using Directional Solvent Extraction

Comparison of cell size, chlorophyll fluorescence and cadmium (Cd2+) bioaccumulation between wild-type and mutant strains of Chlamydomonas reinhardtii upon exposure to Cd2+

Screening and Optimization of Conditions for the Adsorption of Cd2+ in Serpentine by Using Response Surface Methodology

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