Sewage treatment system and its oil-water separation device

Abstract

The invention relates to a sewage treatment system and an oil water separating device thereof, which are used for separating solid substances, water and oil in kitchen waste. The sewage treatment system comprises an oil water separating device and a solid-liquid separating device, wherein the solid-liquid separating device is arranged in front or in back of the oil-water separating device so as to separate the solid substances, water and oil in kitchen waste with the oil-water separating device; the solid-liquid separating device further comprises at least one filter element; each filter element is provided with a group of first through holes which are in communication at the two sides; the liquid in the kitchen waste is collected through the first through holes; the oil-water separating device further comprises an oil collecting tube which is provided with an oil collecting cavity and at least one injecting hole which is formed in the tube wall of the oil collecting tube; and the injecting hole is always exposed to the oil layer for guiding substances in the oil layer of an oil-water mixture to enter the oil collecting cavity for collecting.

Description

technical field [0001] The invention relates to a sewage treatment system, in particular to a sewage treatment system and an oil-water separation device suitable for treating kitchen waste. Background technique [0002] In the context of an increasingly prosperous society, no matter whether it is a high-income family or an ordinary family, the food on the table is more abundant than before, and the amount of food waste that follows is also increasing day by day, especially commercialized. Food waste generated by the catering industry. Regarding the treatment of food waste, since most of the food waste is liquid substances, if the food waste is directly introduced into the sewer, the solid matter in the food waste will easily be precipitated into the sewer, and this situation will easily lead to sewer pollution. The blockage of the sewer, and because the solid matter is formed by the slag of many substances, it is difficult to unclog the sewer after it is blocked. In additi...

AI Technical Summary

Problems solved by technology

However, the original driving force required by this method is relatively large, and the efficiency is low, and the cost of solid-liquid separation of sewage is high; most importantly, the volume of the extrusion-type solid-liquid separation device is relatively large, which is not suitable for Venue use with smaller venues, such as restaurants or restaurants

As a result, the sewage generated in small places such as restaurants or restaurants cannot be treated in a timely manner. Therefore, this sewage can only be directly discharged into the municipal sewer

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