Homogeneous catalytic wet-air oxidation for the treatment of textile wastewater
An extensive series of experiments was performed to identify suitable catalysts to increase the reaction rate of wet-air oxidation of textile wastewater t relatively mild temperatures an pressures. Wastewater types treated included natural-fiber desizing wastewater, synthetic-fiber desizing wastewater, and printing and dyeing wastewater. Experimental results indicated that all catalysts tested in this investigation significantly increased the chemical oxygen demand (COD) and total organic carbon (TOC) removal rates and total COD and TOC removals. Of all catalysts tested, copper salts were the most effective. Anions in the slat solutions played a role in the catalytic process. Nitrate ions were more effective than sulfate ions. Similarly, copper nitrates were more effective than copper sulfates. A mixture of salts containing different metals performed better than any single salt.
- OSTI ID:
- 20080402
- Journal Information:
- Water Environment Research, Vol. 72, Issue 2; Other Information: PBD: Mar-Apr 2000; ISSN 1061-4303
- Country of Publication:
- United States
- Language:
- English
Similar Records
Electrochemical removal of dyes from textile wastewater
Treatment of high-strength industrial wastewater by wet air oxidation--A case study