The pickling sludge produced in the stainless steel pickling process is a hazardous waste
and disposal in landfill poses a potential environmental risk. Stainless steel pickling sludge …

Hazardous waste (HW) management is challenging because of their extreme toxicity to the
environment and human beings. In the meantime, the occurrence of safety incidents that is …

Acid recovering and iron recycling from pickling waste acid are the desired goal of the steel
mills for current ecological requirements and economic benefit. This study proposed a novel …

In this study, microbial induce carbonate precipitation (MICP) was introduced to immobilize
chromium (Cr) in stainless steel pickling sludge (SSPS). Two methods were utilized to …

The co-precipitation process plays a key role in the decontamination of radionuclides from
low and intermediate levels of liquid waste. For that reason, the removal of Cs ions from …

The pickling sludge produced from rolling process contains a large amount of Fe, Ca, Al as
well as other metals. If these metals can be extracted and used, it will promote the recycling …

In this work, a novel strategy based on evaporation and crystallization unit operations,
capable of producing hydrochloric acid solution, iron (II) chloride and magnetic iron oxide …

The recovery of valuable metals from stainless steel pickling sludge (SSPS) has great
economic and environmental benefits. In this study, a new method is proposed for selective …

The production process of the metallurgical industry generates a significant quantity of
hazardous waste. At present, the common disposal method for metallurgical hazardous …

Primary and secondary mill scales (MSs) are waste products produced by the surface
oxidation of steel during the hot (800 to 1200° C) rolling process in downstream …