Resource utilization of electroplating wastewater: obstacles and solutions

Abstract

The source, composition and impacts of impurities on electroplating wastewater treatment are discussed to achieve higher recovery of metals and water.

Cyanoremediation and phyconanotechnology: cyanobacteria for metal biosorption toward a circular economy

“…To date, a limited number of works have evaluated metal biosorption from industrial wastewater, despite their composition and pH being known to strongly influence the heavy metal removal process, including the selectivity of the biosorbent toward metals ( Zinicovscaia et al, 2019 ; Li et al, 2022 ). Specific studies with metal-rich wastewater are needed to implement this approach at pilot and industrial scales.…”

“…Specific studies with metal-rich wastewater are needed to implement this approach at pilot and industrial scales. For instance, the recovery of water and metals from electroplating effluents is particularly challenging due to the high costs associated with the metal-coating process and the treatment of the generated effluents ( Li et al, 2022 ). Thus, the cyanobacteria-based approach suggested in this article may be implemented to reduce metal concentration from these effluents, while obtaining a metal-rich organic material.…”

A Sandwich Structure of Fulvic Acid and PMIDA-Modified LDHs for the Simultaneous Removal of Cu2+ and Aniline in Multicomponent Solutions

“…The coal chemical industry and the electroplating industry are two typical high-pollution emission industries. Large amounts of toxic Cu 2+ and aniline coexist in the coking wastewater and electroplating wastewater. , Cu 2+ is a heavy metal recognized for its progressive accumulation and multiple-organ toxicity in the human body, which is reported to lead to severe damage to the kidney, the liver, and the central nervous system . Aniline is also listed as a contaminant by most environmental protection agencies as it exhibits strong toxicity even at a low concentration .…”

Chromoionophoric probe‐anchored mesoporous silica nanospheres for rapid and reliable naked‐eye detection of Ni(II) ions in petroleum products and removal from electroplating wastewater

“…Precipitation is also utilized for the elimination of dissolved metals and other contaminants from the water 23,24 . However, this technique may result in the generation of sludge and the requirement for high chemical dosage 25 . It is imperative to carefully evaluate the specific contaminants present and the desired level of purification before selecting a water treatment technique.…”