Wastewater reuse in the textile industry is necessary due to the high water consumption required for its
processes. This has to be considered, especially in areas that suffer from water scarcity such as Iran. Although
several studies have been conducted, in the developed countries, in to the treatment of water and wastewater
through Granular Activated Carbons1,2, adsorbent3,4, Fenton’s reagent5, wet oxidation6, coagulation – electro -
oxidation7, and advanced oxidation with biological oxidation8, developing countries still lack basic technology
of water and wastewater treatment. In typical dyeing processes, 50-95% of the dye is fixed on to the fiber, and
unfixed dyes from subsequent washing operations are discharged in the spent dye-bath or in the wastewaters9.
How ever application of textile treatment methods in an industrial plant becomes difficult due to operational
problems and costs. Biological treatment by activated sludge offers high efficiencies in COD removal, but does
not completely eliminate the color of the wastewater and frequently operational problems such as bulking
appear. Chemical oxidation by ozone, or a combination of UV-radiation and ozone and H2O2, has great interest,
but the costs are still very high due to the high doses required. Among the above mentioned methods, adsorption
Wastewater reuse in the textile industry is necessary due to the high water consumption required for its
processes. This has to be considered, especially in areas that suffer from water scarcity such as Iran. Although
several studies have been conducted, in the developed countries, in to the treatment of water and wastewater
through Granular Activated Carbons1,2, adsorbent3,4, Fenton’s reagent5, wet oxidation6, coagulation – electro -
oxidation7, and advanced oxidation with biological oxidation8, developing countries still lack basic technology
of water and wastewater treatment. In typical dyeing processes, 50-95% of the dye is fixed on to the fiber, and
unfixed dyes from subsequent washing operations are discharged in the spent dye-bath or in the wastewaters9.
How ever application of textile treatment methods in an industrial plant becomes difficult due to operational
problems and costs. Biological treatment by activated sludge offers high efficiencies in COD removal, but does
not completely eliminate the color of the wastewater and frequently operational problems such as bulking
appear. Chemical oxidation by ozone, or a combination of UV-radiation and ozone and H2O2, has great interest,
but the costs are still very high due to the high doses required. Among the above mentioned methods, adsorption
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