Comprehensive review of industrial wastewater treatment techniques

Environmental Science and Pollution Research, Journal Year: 2024, Volume and Issue: 31(39), P. 51064 - 51097

Published: Aug. 7, 2024

Water is an indispensable resource for human activity and the environment. Industrial activities generate vast quantities of wastewater that may be heavily polluted or contain toxic contaminants, posing environmental public health challenges. Different industries with widely varying characteristics, such as quantity generated, concentration, pollutant type. It essential to understand these characteristics select available treatment techniques implementation in facilities promote sustainable water usage. This review article provides overview wastewaters generated by various commonly applied techniques. The advantages, disadvantages physical, chemical, biological methods are presented.

Language: Английский

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Efficient Metal Extraction from Dilute Solutions: A Review of Novel Selective Separation Methods and Their Applications

Metals, Journal Year: 2024, Volume and Issue: 14(6), P. 605 - 605

Published: May 21, 2024

Notable increases in metal consumption and declining ore grades recent decades have stressed the significance of dilute solutions as secondary sources valuable metals. Moreover, environmental considerations imperative sustainable development further emphasized their treatment. Therefore, finding an efficient solution for separating metals from has attracted attention numerous researchers. This paper reviews purification processes highlights key achievements published research works. Although this study focuses on evaluating efficiency recently developed aqueous-phase methods, such immobilized ligands, ionic liquids, air-assisted solvent extraction, application conventional to treat these solutions, ion exchange, membranes, chemical precipitation, adsorption are also briefly outlined. To provide a comprehensive assessment, more than 200 articles were reviewed, findings stated study. contributes advancement knowledge recovery sheds light dynamic evolution field.

Language: Английский

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Solvometallurgical Properties of Choline Chloride-Based Deep Eutectic Solvents for Copper Extraction from Chalcopyrite: Optimization and Analysis

Mining, Journal Year: 2025, Volume and Issue: 5(1), P. 8 - 8

Published: Jan. 13, 2025

This paper focuses on the solvometallurgical properties of choline chloride-based deep eutectic solvents for copper extraction from chalcopyrite concentrate. The study, conducted with scientific rigor, utilized response surface methodology to optimize process and investigate effects temperature contact time recovery efficiency. results showed that ChCl-EG-Ox solvent at 80 °C 48 h produced highest rate, exceeding 76%. underscores potential sustainable metal extraction. Kinetic studies revealed influence dissolution kinetics, higher temperatures leading faster reaction rates. mineralogical analysis demonstrated changes in concentrate after dissolution, while spectroscopy mass spectrometry highlighted esterification reactions solvent. study also examined adding water heating solvent’s behavior, providing insights into chemical interactions structural changes. Ultimately, research ChCl-based present a promising avenue environmentally friendly efficient processes metallurgical industry.

Language: Английский

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Application of microbial sulfate-reduction process for sulfate-laden wastewater treatment: A review

Journal of Water Process Engineering, Journal Year: 2023, Volume and Issue: 52, P. 103537 - 103537

Published: Feb. 9, 2023

Language: Английский

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Selective separation of metals from wastewater using sulfide precipitation: A critical review in agents, operational factors and particle aggregation

Journal of Environmental Management, Journal Year: 2023, Volume and Issue: 344, P. 118462 - 118462

Published: June 27, 2023

Language: Английский

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Overlooked residue of Li-ion battery recycling waste as high-value bifunctional oxygen electrocatalyst for Zn-air batteries

Applied Catalysis B Environment and Energy, Journal Year: 2023, Volume and Issue: 332, P. 122767 - 122767

Published: April 12, 2023

Continuously increasing production of Li-ion batteries (LIBs) for the Green Transition is underlined by absence feasible recycling methods graphite, regardless its criticality as a raw material. The current study demonstrates novel strategy to valorize waste graphite valuable material in oxygen electrocatalyst production. Industrially produced LIBs post-metallurgical leach residue was transformed into highly active bifunctional electrocatalyst, which subsequently successfully applied an catalyst Zn-air batteries. Moreover, graphene-like in-situ doped impurity cobalt present residue. resultant battery shown deliver high specific capacity 719 mA h g-1, peak power density 112.8 mW cm-2 and could be cycled over 400 times. Results clearly demonstrate that often-neglected LIB fraction can source electrocatalysts required metal-air regenerative fuel cells.

Language: Английский

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Atmospheric leaching of Ni, Co, Cu, and Zn from sulfide tailings using various oxidants

Minerals Engineering, Journal Year: 2024, Volume and Issue: 207, P. 108576 - 108576

Published: Jan. 16, 2024

The growing demand for nickel and cobalt increases the interest in extracting metals from secondary sources, such as flotation tailings. A preferential strategy processing of complex and/or low-grade sources may be material integration into existing primary processes. In this research, a robust sulfuric acid leaching treatment was studied metal extraction sulfidic tailings (Ni 0.45 %, Co 0.80 Cu 0.20 Zn 0.58 %). impact parameters on studied; oxygen gas (1–2 L/min), ferric ions (0.05–0.3 M), hydrogen peroxide (0.5–0.8 temperature (30–90 °C), concentration (0.2–2 solid–liquid ratio (50–100 g/L). It found that after 30-minutes 20.0 % nickel, 5.6 cobalt, 33.0 main impurity iron were extracted using oxidant. Increasing shown to have positive effect extraction. Also, with further addition ions, could slightly increased (from 6.2 8.3 %) whereas both (nickel 22.9 14.2 However, use H2O2 can challenging due its high environmental footprint well partial decomposition by increasing consumption further. results suggest mineralogy investigated limited feasible atmospheric conditions up ≈ 20 10 distributing stronger non-refractory minerals while reported more pyrite. For other base metals, zinc sphalerite efficient (up 90 copper 30 future, provide recovery route present tailings, full valorization sulfide matrix will require higher intensity technologies pressure oxidation (POX), concentrated chloride leaching, bioleaching, roasting-leaching or very fine milling raw prior leaching.

Language: Английский

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Environmental and human health implications of metal(loid)s: Source identification, contamination, toxicity, and sustainable clean-up technologies

Frontiers in Environmental Science, Journal Year: 2022, Volume and Issue: 10

Published: Aug. 26, 2022

Environmental pollution is becoming more prevalent in both human life and the ecosystem. The increased use of fossil fuels, mining, burning wastes, as well industrial wastewater discharge, are polluting natural resources such water, soil, air. Metals (loid)s (Cu, Cr, Cd, Zn, Ni, Pb, Hg, Sb, Sn, As) contribute to several ecological problems when exposed humans environment resulting serious health environmental risks. aquatic terrestrial sites with these elements an issue public significance. present review highlights instigated by toxic metal (loid)s, their source, respective health/environmental concern along importance creating low-cost, environmentally acceptable clean-up technologies for treating household wastewater. Various physical, chemical, biological, and/or biochemical various combinations have been described from sustainable technological point view. Techniques ion exchange, membrane filtration, photocatalysis, bioremediation, phytoremediation, economical biosorbents, nanomaterials discussed detail recent case studies gain a significant inside towards solution focused action-oriented development. Thus, this article significantly provides deep insight into toxicity, source identification, influences on ecosystem conventional technologies.

Language: Английский

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Approaches to mitigation of hydrogen sulfide during anaerobic digestion process – A review

Heliyon, Journal Year: 2023, Volume and Issue: 9(9), P. e19768 - e19768

Published: Sept. 1, 2023

Anaerobic digestion (AD) is the primary technology for energy production from wet biomass under a limited oxygen supply. Various wastes rich in organic content have been renowned enhancing process of biogas production. However, several other intermediate unwanted products such as hydrogen sulfide, ammonia, carbon dioxide, siloxanes and halogens generated during process, which tends to lower quality quantity harvested biogas. The removal sulfide wastewater, potential substrate anaerobic digestion, using various technologies covered this study. It recommended that microaeration would increase higher efficiency based on number benefits specific method. primarily accomplished by dosing smaller amounts digester, increases system's oxidizing capacity rendering sulfate reducing bacteria responsible converting ions inactive. This paper reviews physicochemical biological methods place eliminate effects wastewater treated anaerobically future direction remove produced.

Language: Английский

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A novel approach for removing cadmium from synthetic wet phosphoric acid using sulfide precipitation process operating in batch and continuous modes

Minerals Engineering, Journal Year: 2022, Volume and Issue: 187, P. 107809 - 107809

Published: Aug. 22, 2022

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