| 摘要 |
PROBLEM TO BE SOLVED: To provide a disposing method of biotic organic wastes free from the following problems that conventional disposing methods have encountered: incineration, discarding deposition for reclamation, and ocean dumping each cause air pollution, global warming, soil contamination, water pollution and the like with a heavy environmental load and therefore cause secondary environmental pollution; disposal as a compost raw material needs a period for fermentation and aging and therefore does not allow speedy disposal, and furthermore requires with a rise in the cost facilities for treating biotic organic wastes during the period; and in a composting process where wastes are mixed with animal excretions, chemical substances included in feed for animals intermix with disposed wastes. SOLUTION: A strong acid is added to a biotic organic waste followed by stirring, and subsequently a neutralizing agent is added followed by stirring. Preferably, the pH when the strong acid is added is caused to be 2.5 or lower. Preferably, the pH in neutralizing by an alkaline neutralizing agent is caused to be 4-6. Sulfuric acid is preferably used as the strong acid. As the neutralizing agent, a porous natural calcium agent is preferably used. |
