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Frontiers of Environmental Science & Engineering >> 2017, Volume 11, Issue 1 doi: 10.1007/s11783-017-0899-5

Adsorption in combination with ozonation for the treatment of textile waste water: a critical review

. Symbiosis Centre for Research and Innovation, Symbiosis International University, Lavale, Pune-412115, India.. Symbiosis Institute of Technology, A Constituent of Symbiosis International University, Lavale, Pune-412115, India

Available online: 2017-01-06

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Abstract

A combination of adsorption with ozonation proved best for dye removal. Toxicity of the textile effluents can be remarkably reduced by combined method. Wide scope for choice of natural materials for treatment of textile dyes. Intrusion of synthetic textile dyes in the ecosystem has been recognized as a serious issue worldwide. The effluents generated from textiles contain large amount of recalcitrant unfixed dyes which are regarded as emerging contaminants in the field of waste water study. Removal of various toxic dyes often includes diverse and complex set of physico-chemical, biological and advanced oxidation processes adopted for treatment. Adsorption in itself is a well-known technique utilized for treatment of textile effluents using a variety of adsorbents. In addition, ozonation deals with effective removal of dyes using high oxidising power of ozone. The review summarizes dye removal study by a combination of ozonation and adsorption methods. Also, to acquire an effective interpretation of this combined approach of treating wastewater, a thorough study has been made which is deliberated here. Results asserts that, with the combined ability of ozone and a catalyst/adsorbent, there is high possibility of total elimination of dyes from waste water. Several synthetically prepared materials have been used along with few natural materials during the combined treatment. However, considering practical applicability, some areas were identified during the study where work needs to be done for effective implementation of the combined treatment.

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