Experimental Study of Treatment of Oily Waste Water by a Cyclone-Static Micro-Bubble Flotation Column
MA Li-qiang
LIU Jiong-tian
YUE Guan-gao
CHEN Qing-ru
Abstract：Serious environmental pollution had been caused by oily waste water formed in the industries of mining, refining and utilization of petroleum. Meanwhile the processes available for the treatment of oily waste water were still characterized as either expensive or low effi-cient. An experimental system was established to study the treatment of oily waste water by a cyclone-static micro-bubble flotation column. The effects of technological parameters, inclu-ding output pressure of cycling pump, cross-section velocity of water in column, pH value of oily waste water, types and amount of flocculating agents and amount of surfactant as well, on the treatment of oily waste water were studied and optimized. The results show that all the pa-rameters mentioned above have considerable effects on the treatment of oily waste water. The removal of oil from oily waste water can be up to 95.7% under the optimized conditions, which suggests that the cyclone-static micro-bubble flotation column is a promising technology for the treatment of oily waste water.
Keywords：flotation columnoily waste waterremoval of oil pollutant
Publication Date：2009-01-01
Online Publishing Date：2025-08-15(First online date of this platform, not the publication date of the document)
Pages：4( 554-557 )