一种餐厨垃圾处理方法及其处理系统

Treatment method and treatment system of food wastes

Abstract

一种餐厨垃圾处理方法,其包括以下步骤:(1)分类筛选:将收集的餐厨垃圾按照有机物和无机物分类,有机物等待处理;(2)破碎:将分离出来的有机物进行破碎,获得粒度均一的垃圾颗粒混合物;(3)发酵处理:向破碎后的垃圾颗粒混合物中添加发酵剂,进行第一次发酵处理,获得发酵物;(4)油脂分离:将发酵液中的油脂类物质分离出来,并滤除;(5)干湿分离:将发酵物进行干湿分离,获得固体有机物和液体有机物;(6)沉淀:将液体有机物进行沉淀,去除沉淀;(7)制备肥料:将固体有机物和液体有机物分别制得固态肥料和液态肥料。本发明的处理方法,将餐厨垃圾处理后制成肥料使用,营养物质可再利用,更环保。
A treatment method of food wastes comprises the following steps: (1) sorting: classifying the collected food wastes according to organic matters and inorganic matters, wherein the inorganic matters are to be treat; (2) crushing: crushing the separated inorganic matters to obtain waste mixed particles with the uniform particle size; (3) performing fermentation treatment: adding culture starter in the crushed waste mixed particles, performing the first fermentation treatment to obtain a fermentation product; (4) perform fat separation: separating fat type materials from the fermentation solution, removing through filtration; (5) performing dry separation: performing dry separation to the fermentation product to obtain solid organic matters and liquid organic matters; (6) precipitating: precipitating the liquid organic matters to remove; and (7) preparing fertilizer: respectively using the solid organic matters and the liquid organic matters to prepare solid fertilizer and liquid fertilizer. By using the treatment method of the invention, the food wastes can be treated to prepare fertilizers, thus nutrients can be reused and the method is more environmentally friendly.

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