Pollution, Toxicity and Carcinogenicity of Organic Dyes and their Catalytic Bio-Remediation.

Abstract

Water pollution due to waste effluents of textile industry is a seriously causing various health problems in humans. Water polluted with pathogenic bacteria, especially Escherichia coli (E. coli) and other microbes is due to the mixing of fecal material with drinking water, industrial and domestic sewage, pasture and agricultural runoff. Among the chemical pollutants, organic dyes due to toxic nature, are one of the major contaminates of industrial wastewater. Adequate sanitation services and drinking quality water would eliminate 200 million cases of diarrhea, which results 2.1 million less deaths caused by diarrheal disease due to E. coli each year. Nanotechnology provides an excellent platform over conventional treatment methods of water treatment and remediation from microorganisms and organic dyes. In current study, toxicity and carcinogenicity of the organic dyes have been studied as well as the remediation/inactivation of dyes and microorganism has been discussed. Remediation by biological, physical and chemical methods has been reviewed critically. A physical process like adsorption is cost effective, but can't degrade dyes. Biological methods were considered to be eco-friendly and cost effective. Microbiological degradation of dyes is cost effective, eco-friendly and alternative to the chemical reduction. Besides, certain enzymes especially horseradish peroxidase are used as versatile catalysts in a number of industrial processes. Moreover, this document has been prepared by gathering recent research works related to the dyes and microbial pollution elimination from water sources by using heterogeneous photocatalysts, metal nanoparticles catalysts, metal oxides and enzymes.

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Identifiers

DOI

10.2174/1381612825666191021142026

Journal

Current Pharmaceutical Design

Year

2019