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Comparison of Remediation Mechanism of Heavy Metal–Contaminated Soil by Combined Leaching and Two-Step Leaching
Soil contaminated by heavy metals, which is widespread in the world, has the characteristics of persistence and potential, so it is urgent to repair...
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Research Progress of Ex-situ Leaching and Remediation Technology for Heavy Metal Contaminated Soil
Currently, the heavy metal pollution of soil is severe in China and also other countries. There is a long way to go in soil remediation. Chemical...
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Heavy metal leaching from wood ash before and after hydration and carbonation
Wood ashes can be used, e.g., as soil fertilizer or in construction materials; however, it is important to ensure that such use will not cause...
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Metal recovery from industrial solid waste by ultrasonic-assisted hydrometallurgical leaching: a review
In the context of the circular economy, there is a need for advanced methods to recover metals from industrial waste, yet classical...
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The potential environmental risk implications of two typical non-ferrous metal smelting slags: contrasting toxic metal(loid)s leaching behavior and geochemical characteristics
PurposeAs one of the most critical sources of pollution from detrimental elements, smelting slags pose a huge threat to the surrounding environment....
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Evaluation and selection of a rational test method for heavy metal leaching in terms of environmental and economic factors
The paper presents a specific model used to assess and select the method of heavy metal leaching from waste materials. A recommendation for the...
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Characteristics and factors that influence heavy metal leaching from spent catalysts
With the extensive use of nonferrous metals and metal catalysts, solid wastes containing heavy metals release metal ions into soil and surface water...
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Acid-leaching mechanism of electroplating sludge: based on a comprehensive analysis of heavy-metal occurrence and the dynamic evolution of coexisting mineral phases
Electroplating sludge is a typical heavy metal-containing hazardous waste with tens of millions of tons produced annually in China. Acid leaching is...
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Evaluation of asphalt film thickness and heavy metal leaching of oxidizing slag used as an aggregate material in dense-graded asphalt concrete
Electric-arc-furnace (EAF) steelmaking uses scrap iron and steel as raw materials. Scrap iron and steel originate from complex sources and may...
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Leaching Mechanism of Metals from Recycled Concrete Aggregates (RCA) and Potentially Environmental Issues
Recycled concrete aggregates (RCA) is one of the most prevalent construction waste products what is regularly used in the road construction industry....
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Towards Efficient Extraction of Heavy Metals from Contaminated Soils: Soil Leaching Integrated with Flocculation Dewatering
The soil leaching process for efficient heavy metal-contaminated soil remediation is usually completed with mud-water separation. However, the...
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Valorization of waste mill tailings from small-scale mining through geopolymerization: strength, durability, and heavy metal leaching potential
PurposeMill tailings are sediments produced after the metal-bearing mineral has been separated from an ore’s uneconomic fraction. These residues are...
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Study on Pretreatment and Leaching Behaviors of Spent Fluid Catalytic Cracking Catalysts
The reclamation of exhausted Fluid Catalytic Cracking (FCC) catalysts has attracted considerable interest. However, the leaching rates of valuable...
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Cow Manure Pellet Biochar: Leaching of Cu(II) and Its Corresponding Influences on Tetracycline Adsorption
Valorizing heavy metal–contaminated livestock manure into biochar and thus used for decontaminating antibiotics in farm wastewater is an agricultural...
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Environmental risk of ion-absorbed rare earth ores: concentration of leaching agent and fractionation of Pb
Rare earth (RE) is an important strategic resource; however, there has been a growing concern about the environmental problems caused by RE mining,...
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Systematic Evaluation of Potential and Actual Heavy Metal Leaching Risks of Water Purification Materials Under Different Acid–Base Conditions: Analysis of Behavior and Mechanism
This study investigated the functional and structural properties of several water purification materials and the behavior of a number of soluble...
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Screening of variables affecting the selective leaching of valuable metals from waste motherboards’ PCBs
The presence of valuable and hazardous metals in waste printed circuit boards, especially, motherboards, makes their recovery necessary as implies...
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Vanadium Leaching Kinetics from Calcification-Roasted Vanadium Slag in Ammonium Carbonate
Ammonium carbonate leaching method is a new selective vanadium leaching method. Studying the leaching kinetics of vanadium in ammonium carbonate...
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Effect of red and blue light supplementation on the efficacy of Noccaea caerulescens in decontaminating metals and alleviating leaching risk
This study was conducted to investigate the impact of supplementing blue and red light on the biomass yield, metal uptake, contaminant purification,...
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Iron Removal from Bauxite by Oxalic Acid and Further Al Extraction by High-Pressure Alkali Leaching
Aluminum production from bauxite is achieved with the Bayer process, which is a hydrometallurgical method. However, in the Bayer process, in time, it...
