Oil-water separation tower and oil-water separation method

Abstract

The invention discloses an oil-water separation tower. The oil-water separation tower comprises an upper oil discharging section, a lower water draining section and an oil-water separation section located between the oil discharging section and the water draining section. The oil-water separation section allows separated sump oil to ascend to be discharged out of the oil discharging section and allows separated wastewater to descend to be drained out of the water draining section; the oil-water separation section further comprises an oil phase section and a water phase section, oleophylic hydrophobic filler and a feeding distributor located on the oleophylic hydrophobic filler are arranged in the oil phase section, and hydrophilic oleophobic filler is arranged in the water phase section. The invention also relates to an oil-water separation method. Demulsifying agent, flocculating agent and the like are not added in the oil-water separation process, the structure is simple, operating is convenient, the method and other processes are easily combined and used, and the oil-water separation tower and the oil-water separation method are particularly suitable for oil removing treatment of industrial wastewater with complex ingredients.

Description

technical field [0001] The invention relates to the field of oily sewage treatment, in particular to an oil-water separation tower and an oily separation method. Background technique [0002] In industrial production, oil-water separation is often required for oil-water mixtures, especially in petrochemical, coal chemical, oil field and other industries. Oil and water are two types of immiscible liquids, which must be separated according to process needs or environmental protection requirements. There are many existing oil-water separation methods, usually by using the difference in density between oil and water, such as sedimentation, centrifugal separation, coalescence, air flotation, cyclone filtration, etc. Others include activated carbon or ultrafiltration fiber filtration, chemical Methods such as demulsification, heating separation and membrane separation, as well as the design of weir flow plate, perforated plate, multi-chamber, mechanical extrusion, etc., use the c...

AI Technical Summary

Problems solved by technology

These methods and devices have their own advantages and disadvantages. Generally speaking, the oil removal effect is not ideal, and there are problems such as long residence time, inability to deeply remove small-sized oil droplets, and secondary pollution caused by sludge.

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