期刊
DESALINATION AND WATER TREATMENT
卷 55, 期 3, 页码 647-654出版社
DESALINATION PUBL
DOI: 10.1080/19443994.2014.920279
关键词
CWHPO; Coffee wastewater; Al-Fe-pillared clay; Extrudates; Phenolic compounds
资金
- Universidad Nacional de Colombia-Sede Bogota [14990]
The effluents from the biological treatment of coffee wet processing wastewater (CWPW) contain non-biodegradable compounds, which are toxic to aquatic ecosystems. In this study, Al-Fe-pillared bentonite extrudates shaped into Raschig rings were used to catalyze the oxidation of the phenolic compounds in CWPW. The catalytic wet hydrogen peroxide oxidation was tested in a semi-batch basket reactor at 25 degrees C under atmospheric pressure. Al-Fe-pillared bentonite extrudates achieved a 62.4% total phenol conversion with a 67.5% selectivity toward CO2 after 96h. Catalytic performance of the Al-Fe-pillared bentonite extrudates in the oxidation of phenolic compounds shows the potential of applying this catalyst for the treatment wastewaters. The implementation of systems for wastewater treatment is essential to the conservation of natural resources and the preservation of Colombian biodiversity, therefore, this research is a contribution to the sustainable development of coffee growing.
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