FREE AND EMULSIFIED OIL REMOVAL BY BUBBLE ACCELERATED FLOTATION (BAF)

摘要

Operational data from full-scale field applications and pilot tests using the Bubble Accelerated Flotation (BAF) system for the treatment of wastewater are presented. The compact BAF system based on the air-sparged hydrocyclone technology was designed to remove pollutants from industrial waste and process water. Crude oil and vegetable oil levels in water were reduced non-chemically by 61-66% and with pH control and flocculants - above The system was effective at low starting concentration of oil (<10 PPM) and effective in the removal of oil at initial concentrations >30 %. Similar reductions were recorded for TSS and microbiological agents in a wide variety of industrial process and wastewater. Due to high air/water ratio, small bubble size, and rapid removal of air from the system, VOCs were also effectively removed.