A pretreatment equipment suitable for ethanol fermentation of food waste

Abstract

The invention discloses a pre-treating device applicable to alcoholic fermentation of kitchen waste, and relates to pretreatment for producing fuel alcohol suitable for using the kitchen waste as a raw material. The pre-treating device consists of an oil-water separating device, a liquor storage tank and a homogenizing device. The bottom of the oil-water separating device is provided with a grease outlet and a liquor outlet, grease is conveyed outside after being collected and then is subjected to post treatment, the liquor separated from oil and water flows out from the liquor outlet and is conveyed to the liquor storage tank through a conveying pump arranged on a pipeline, and the liquor storage tank is connected with the homogenizing device through a pipeline. The kitchen waste passes through the oil-water separating device, the material which is not suitable for fermentation is sorted, the grease is obtained simultaneously, the waste liquor enters the liquor storage tank through a discharge opening and then enters the homogenizing device, and waste serous fluid is obtained through homogenization. The device meets requirements of separating and treating at the same time, can effectively improve efficiency for the alcoholic fermentation of the kitchen waste, and has the characteristics of compact structure, simple operation and multiple functions.

Description

technical field [0001] The invention relates to a pretreatment device for kitchen waste, in particular to a pretreatment device suitable for producing fuel ethanol by using kitchen waste as a raw material. Background technique [0002] Kitchen waste refers to the waste generated during the catering process. It is the main component of urban waste. It has prominent features such as large oil content, complex composition, and high organic matter content. As garbage, on the one hand, it has a huge pollution risk, and on the other hand, it has a strong potential for resource utilization. At present, there have been many studies on the treatment of food waste, such as the use of food waste to produce methane, lactic acid, and feed. [0003] With the decrease of fossil energy, people pay more and more attention to the research and development of renewable energy. Fuel ethanol is favored by people because of its simple fermentation process, the ability to produce ethanol gasoline,...

AI Technical Summary

Problems solved by technology

The whole process makes full use of the nutrients in the liquid food waste, but since the solid matter of food waste also contains a lot of energy, it is a huge waste of energy to treat it as feed, so full use of the solid matter should be considered. After the energy of the substance is recovered, the residue is then utilized

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