RETREAT METHOD OF ORGANIC OR INORGANIC WASTE RESOURCES

文件类型：PDF文档
文件大小：279K
PURPOSE : A re-treatment method for organic/inorganic waste resources is provided to simultaneously inject sulfate compounds and strong alkaline powder to organic/inorganic waste resources and vaporize moisture contained in the waste resources by reaction heat and remove odor through chemical reaction between the injected substances and the waste resources. CONSTITUTION : In a re-treatment method for organic/inorganic waste resources, 20-35wt%% of a sulfate compound and 10-15wt%% of strong alkaline powder are simultaneously injected into 100wt%% of organic/inorganic waste resources selected from a group formed of sewage sludge, water sludge, waste food, livestock manure, waste plaster, waste lime, and dredged soil, wherein the sulfate compound and the strong alkaline powder are preferably injected by a rate in the range from 6 : 4 to 7 : 3 by wt%%, and the re-treatment procedure is carried out at in the range from 6pH to 8pH. The sulfate compound is one or more selected from a group consisted of CaSO4, K2SO4, Na2SO4, FeSO4, Fe2(SO4)3 and hydrates thereof. The strong alkaline powder is selected from a group consisting of calcium oxide, magnesium oxide, calcium hydroxide, limestone, and cement. © KIPO 2007