Organic liquid wastes treatment process and composting method using the rice straw filtration column as a pretreatment process

摘要

PURPOSE: Provided is a process for treating organic liquid waste by rice straw-filtering column instead of screen as a treatment system for eliminating solid content of waste, which improves the treatment efficiency and produces good quality of compost as a byproduct. CONSTITUTION: The process comprises: a vessel for controlling waste flow(100) for expiration, elimination of bad smell and homogeneity of liquid waste; a rice straw filtering column(200) for filtration and expiratory compost, which has a third drawer type and runs as the following way: a first rice straw drawer(230) is made to compost, then a second rice straw(240) drawer is laid on the first drawer and a second drawer(240) is made to compost, then a third rice straw drawer(250) is laid in the second drawer; an anoxic vessel(320) for denitrification, an aeration vessel(330) for organic oxidation and nitrification and activated carbon adsorbing vessel(400) for the elimination of the rest solid content and adsorption.