| 摘要 |
<p>PROBLEM TO BE SOLVED: To provide a production which is simple, inexpensive and efficient and also to provide the device for the production, in order to convert human/animal waste, i.e., human/ animal night soil into a useful liquid fertilizer while eliminating the need of disposing the night soil as waste. SOLUTION: This production comprises: receiving an activator, facultative anaerobic bacteria and indigenous bacteria in a first reaction vessel 1, supplying a liquid raw material to the reaction vessel 1 and subjecting the raw material to anaerobic reaction in the presence of the contents of the reaction vessel 1 while passing a small amount of air through the reaction vessel 1, to perform first activation of the raw material; receiving an activator in a second reaction vessel 2, supplying the liquid raw material subjected to the first activation to the second reaction vessel 2 and subjecting this raw material to anaerobic reaction in the presence of the activator while passing a small amount of air through the second reaction vessel 2, to perform second activation of the raw material; receiving an activator in a third reaction vessel 3, supplying the liquid raw material subjected to the second activation to the third reaction vessel 3 and subjecting this raw material to anaerobic reaction in the presence of the activator while passing a small amount of air through the third reaction vessel 3, to perform third activation of the raw material and to form a liquid product; and then, mixing the resulting liquid product into the contents of a septic tank for human/animal night soil to convert the night soil into a liquid fertilizer.</p> |
