Hydrothermal carbonization (HTC) is an innovative process capable of converting wet
biodegradable residues into value-added materials, such as hydrochar. HTC has been …

The harmful effects of heavy metals on the environment have attracted considerable
attention. Adsorption is an effective method for removing heavy metals from water and soil …

In the present study, hydrothermal conversion (HTC) of dewatered sewage sludge (DSS)
under sub-and near-critical water has been performed to investigate effects of reaction …

The hydrometallurgical processes for zinc recycling from zinc leaching residues (ZLR)
generate a huge volume of iron residues. Iron residues lead to serious losses of metal value …

Electroplating sludge is a product of the purification of the electroplating wastewater by
neutralization or flocculation precipitation, which belongs to dangerous solid waste. In the …

Electroplating sludge is classified as a solid hazardous waste, which presents significant
environmental and human health risks, while also resulting in substantial depletion of …

This study investigates the potential of hydrothermal carbonisation (HTC) for fractionating
anaerobic digestate of sewage sludge into carbon-rich hydrochar and nutrient-rich aqueous …

Zinc (Zn) in sludges from neutralisation of acidic emissions is a potential environmental
pollutant and an element of interest for recovery. Findings regarding the elemental and …

Zinc-rich neutralization sludge is a hazardous waste which is from the process of zinc
metallurgical industry. In this study, a combined process of sulfidation roasting and HCl …

Floatation tailings (FT) are the main by-products of the hydrothermal sulfidation–flotation
process. FT (FT 1 and FT 2) were obtained by treating two different neutralization sludges …