Analysis of heavy metals and toxicity level in the tannery effluent and the environs

Arti,; Mehra, Rohit

doi:10.1007/s10661-023-11154-4

Cited by 13 publications

(2 citation statements)

References 54 publications

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“…Studies also showed the presence of other metal cations (Cu, Zn, Cd, Fe, etc.) in tannery effluents but only in trace amounts (< 100 ppm) 46 . In such concentration, the metal cations cannot compete to form M-BDC MOFs during the reactions of Cr-BDC MOF assembly.…”

Section: Resultsmentioning

confidence: 99%

Enabling simultaneous valorization of tannery effluent and waste plastic via sustainable preparation of Cr-BDC MOFs for water adsorption

Delhali,

Assen,

Mohammed

et al. 2023

Sci Rep

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Advanced materials undergo a complex and lengthy process of maturation for scaling up and deployment, mainly due to the high cost of their precursors. Therefore, it is highly desirable to fabricate highly valuable advanced porous solid-state materials, with proven applicability, by sustainably combining organic and inorganic waste materials as precursors. This study successfully demonstrates the preparation of Cr-terephthalate Metal–Organic Frameworks (Cr-BDC MOFs) by combining metal salt and organic linker extracted from tannery effluent and waste plastic bottles. The waste from tanneries was used as the source of Cr(III), while terephthalic acid was obtained from the alkaline hydrolysis of plastic bottles. Appropriate extraction and assembly processes led to the functional Cr-BDC MOFs, MIL-101(Cr) and MIL-53(Cr). The prepared MOFs showed similar properties (surface area, hydrolytic and thermal stability, and water adsorption performance) to similar MOFs synthesized from pure commercial-grade precursors, as confirmed by N2 sorption, XRD, TGA, and water adsorption experiments. The advancements made in this study represent significant progress in overcoming the bottleneck of MOF production cost efficiency via applying sustainability principles and pave the way for easy scaling-up and maturation of MOF-based processes, for air dehumidification and water harvesting as a case study.

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Section: Resultsmentioning

confidence: 99%

Enabling simultaneous valorization of tannery effluent and waste plastic via sustainable preparation of Cr-BDC MOFs for water adsorption

Delhali,

Assen,

Mohammed

et al. 2023

Sci Rep

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“…DB-9 is often used in the dying operation of leather manufacture, and cadmium is used in the form of pigment for fastening, marking, and surfacing of material. The amount of Cd among the observed parameters is more significant after Cr and shows a potentially dangerous level of pollution [42,43]. Therefore, this research will be helpful to contributing greener technology to retain the sustainable clean environment goal.…”

Section: Introductionmentioning

confidence: 81%

Simultaneous Removal of Cadmium and Disperse Black-9 Dye Using Chemically Modified Rice Husk-Derived Activated Carbon

Alam,

Sultana,

Jabbar

2024

Text Leather Rev

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Heavy metals and organic dyes pose significant environmental concerns due to their persistence, toxicity, and tendency to accumulate in the food chain. These pollutants are often discharged from various industrial sources without proper management, resulting in unacceptable damage to the environment. The use of low-cost agricultural by-products can be a sustainable and green solution for the industrial effluent treatment process. In the present research, the effective removal of Cd2+ and disperse black‒9 (DB‒9) dye simultaneously was planned through the adsorption method utilizing specially activated carbon (AC) derived from rice husk. FTIR, SEM, and XRD were used to characterize the produced AC. The adsorption studies showed that approximately 88% of the dye DB‒9 and 97% of Cd2+ were adsorbed by using optimal dosages of the AC, which were 16 g/L and 12 g/L, respectively. In addition, it was successfully demonstrated that Cd2+ adsorbed AC was capable of binding with DB‒9 and also DB‒9 adsorbed AC is capable of binding with Cd2+. Therefore, a novel strategy for the simultaneous elimination of Cd2+ and DB-9 ideas was successfully implemented in the current study. In addition, equilibrium data were examined to assess the adsorbate-adsorbent system's isotherms. The Langmuir isotherm was determined to be the most well-fitting, with a maximum uptake of 11.48 mg/g. Thermodynamic study (ΔG⁰) showed that the adsorption process was spontaneous, and the adsorption process followed pseudo-second-order kinetics.

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Emerging Contaminants of Tannery Sludge and Their Environmental Impact and Health Hazards

Khatun,

Mukherjee,

Dhak

2024

Environmental Engineering and Waste Management

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Analysis of heavy metals and toxicity level in the tannery effluent and the environs

Cited by 13 publications

References 54 publications

Enabling simultaneous valorization of tannery effluent and waste plastic via sustainable preparation of Cr-BDC MOFs for water adsorption

Enabling simultaneous valorization of tannery effluent and waste plastic via sustainable preparation of Cr-BDC MOFs for water adsorption

Simultaneous Removal of Cadmium and Disperse Black-9 Dye Using Chemically Modified Rice Husk-Derived Activated Carbon

Emerging Contaminants of Tannery Sludge and Their Environmental Impact and Health Hazards

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