TY - JOUR AU - Voß, Udo AB - A flotation treatment for reducing the oil content of sludges accumulated in light petroleum separators and grit traps is described. Hydrocarbon content of the sludge can be reduced to less than 3% of the dry solids by air flotation assisted by appropriate surfactants. There is a corresponding reduction in Polychlorinated Biphenyls (PCBs) and Polyaromatic Hydrocarbons (PAHs). Air escaping from the flotation cells is scrubbed in a bio-filter and water is purified by activated sludge or a further flotation method. Recovered oil can be further dewatered to produce a useful fuel. TI - Reduction of Oil in Sludges From Light Petroleum Separators JF - Waste Management & Research DO - 10.1177/0734242X9100900140 DA - 1991-01-01 UR - https://www.deepdyve.com/lp/sage/reduction-of-oil-in-sludges-from-light-petroleum-separators-JglGfmF8x0 SP - 293 EP - 304 VL - 9 IS - 1 DP - DeepDyve ER -