Restaurant oil-containing waste water purification processing unit

Abstract

The oil-containing restaurant waste water purifying treatment apparatus includes one electrically heating system, one frequency varying vibrating magnetic field, one corrugated-flat plate oil-water separating tank, one ultrasonic vibration generator, one ozone generator, one filtering carbon tank and one ultrafiltering membrane filter with one back flushing unit. Oil-containing restaurant waste water is treated successively through initial filtering, vibration treating in frequency varying vibrating magnetic field, oil-water separating, ozone treating and ultrasonic vibration treating. The apparatus has high waste water treating quality, continuous separation, high waste water treating capacity, small size, low cost and other advantages.

Description

1. Technical field: [0001] The invention discloses an oily wastewater purification treatment device, relates to the technical field of wastewater treatment containing vegetable oil, animal oil and detergent, and is mainly used in the purification treatment of washing water and swill water in restaurants. 2. Background technology: [0002] At present, the conventional treatment method for oily wastewater from restaurants is to dig a "grease trap" underground. The water outlet below the "oil pool" discharges the water, and the oil floating on it needs to be salvaged regularly. The defect one that this method exists is that after separation, the oil layer floating on the water surface needs to be salvaged in time, otherwise the oil layer will continuously thicken and will be discharged from the water outlet, losing the effect of "grease trap". The second is that the waste water is discharged along with the water in the "grease trap" without any treatment for a large amount of ...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that the oil layer floating on the water surface after separation needs to be salvaged in time, otherwise the oil layer will continue to thicken and will be discharged from the water outlet, losing the role of "grease trap"

The second is that the waste water in the "grease trap" is discharged along with the water without any treatment for a large amount of detergent contained in it. It should be said that it does not meet the discharge conditions.

The third is that due to the long static settling time required for gravity separation, the "grease trap" needs to have a certain floor area

[0003] Since restaurant wastewater is characterized by a mixture of vegetable oil, animal oil and detergent, it is easy to be emulsified during the flow or agitation of the wastewater, and the emulsified water is more difficult to separate oil from water. The general method is to add a demulsifier, so that Not only increases the daily operating cost, but also the demulsifier itself is a source of pollution

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