DEGRADATION OF OILY WASTE WATER IN AQUEOUS PHASE USING SOLAR (ZnO, TiO2 and Al2O3) CATALYSTS

Abstract

Oily waste water treatment beforehand injection into reservoirs of oil is required to diminish creation damage. This can be done using solar -catalytic procedure to lessen the oil droplets in oily waste water. In order to optimize the purification of waste water and, a new technique of degradation (the heterogeneous solar-catalysis) of the oil content was underlined. As catalysts we chose a semiconductor which are ZnO, TiO2 and AL2O3 in the presence of solar as source of energy. The results show that the adsorption of the oil content on catalyst agent supported in absence of radiation solar is negligible. It was found that the removal of oil content by zinc oxide touched 95.2 % and 92.11%, 80.7% for titanium dioxide and aluminum oxide respectively in pH=7.42 and 120 min irradiation time. The capability of catalyst agent to eliminate organic was augmented after addition different catalyst agent. Generally, zinc oxide meaningfully by its high ability to adsorb suspended solids and organic compound from oily waste water, in addition, decreases the economic cost of waste water treatment. The kinetics of organic degradation follows pseudo-first order.