| 摘要 |
A process for treating sewage or similar organic sludge to produce a pasteurised and dried product comprising the steps of, dividing the sludge into at least two portions, drying a first portion so that it has a higher dry solid content than that of the second portion and mixing the portions so as to produce a mixture having an dry solid content intermediate of the first and second portions, and adding an alkaline mixture to the mixture in order pasteurise it and thereby produce a product without employing subsequent drying by aeration. A facility for carrying out this process is also claimed. The pasteurisation may occur in a first in first out (FIFO) hopper. The drying of the first portion may be performed by utilising the heat generated by an electrical generator which utilises methane gas evolved from a landfill or digester site. The alkaline admixture may comprise lime (CaO). |
