DECOMPOSITION TREATMENT OF ORGANIC WASTE AND PRODUCTION OF RIDGING FOR PLANT BY DECOMPOSITION TREATMENT OF ORGANIC WASTE

摘要

PROBLEM TO BE SOLVED: To achievce the shortening of the decomposition treatment time of org. waste and the compactification of decomposition treatment facilities and to produce ridging for a plant by utilizing the fermentative fermentation of org. waste. SOLUTION: Particulate coated carbide prepered by baking and carbonizing sawdust coated with bentonite is mixed with garbage as a moisture adjusting material to adjust garbage to the optimum water content. Aerobic fermentation bacteria are added to this garbage to charge the garbage in a fermentation treatment tank 2 and the garbage is heated at 75 deg.C for 3 hr by a gas burner 23 to be subjected to primary fermentation. This fermented garbage is put in an ageing box 3 to be aged within an ageing chamber 41 for about one month. Three major fertilizer components of phosphorus, nitrogen and potassium liberated accompanied by the fermentative decomposition of garbage are adsorbed and supported by the coated carbide to prepare ridging for a plant. A secondary ageing period and space for decomposing and extinguishing sawdust required in a case mixing sawdust itself as a moisture adjusting material are avoided.