Dyes and heavy metals: removal, recovery and wastewater reuse—a review

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Article Source: SpringerLink
Journal: Sustainable Water Resources Management
Title: Dyes and heavy metals: removal, recovery and wastewater reuse—a review
Authors: Date, M., Jaspal, D.
Abstric: The number of industries releasing heavy metals and dyes has increased drastically, as an outcome of increased consumption of cosmetics, textiles, printing, automobiles, pesticides, etc. The source water quality is getting deteriorated due to increased toxicity imparted by such contaminants, which are getting mixed in the potable water resources. This has adversely affected the life of humans and aquatic creatures. Many conventional treatment streams and mechanisms are available and have been applied for the recovery of dyes and heavy metals. Incessant research and development in this domain have devoured many state-of-the-art techniques and approaches which are environmentally friendly for removal and recovery of dyes and heavy metals and for reuse of such treated wastewater. The technologies elucidated in this paper have shown immense potential and include applied nanotechnology, smart membrane techniques, natural recyclable adsorbents, advanced oxidation mechanisms, novel biological approaches and hybrid blend of electrochemical methods. Research in this sector needs to be upgraded to full scale for its promising implementation in industries. Moreover, the development of suitable hybrid methods needs to be focused on for apprehending an increased efficiency for the removal and recovery process of reclaimed dye and heavy metal wastewater. This critical review captures several conventional and novel methods, including their merits, demerits, several tech no-commercial considerations before adopting them to suit the purpose of removal, recovery of dyes and heavy metals and wastewater reuse.
Cite: Date, M., Jaspal, D. Dyes and heavy metals: removal, recovery and wastewater reuse—a review. Sustain. Water Resour. Manag. 10, 90 (2024). https://doi.org/10.1007/s40899-024-01073-8

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