| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a treatment method of night soil, garbage and sludge by which sludge of an organic waste water treatment facility, sludge such as private sewage treatment tank sludge, night soil and garbage containing animal and plants wastes are treated with reduced energy consumption, and night soil and insanitary screen residue in the private sewage treatment tank sludge are sanitarily converted to compost and solid fuel. SOLUTION: The treatment method of night soil, garbage and sludge consists of (a) a pretreatment process 2 for performing solid-liquid separation of night soil mixed with sludge, (b) an anaerobic digestion process 4 for directly anaerobically digesting solid matter separated in the pretreatment process without dewatering it, (c) the an anaerobic digestion process 4 for anaerobically digesting garbage containing animal and plants wastes and solid matter, (d) a dewatering process 20 for dewatering and separating outflowing liquid of the anaerobic digestion process into solid matter and separated water and (e) a biological treatment process for biologically oxidizing and denitrifying separation water of the pretreatment process 2 and separation water separated from the dewatering process.</p> |
