Patent ID: 6746646
Filing Date: 2004-06-08
Classification: C02F

Abstract:
A biosolids treatment system comprising:(a) a storage tank for containing a quantity of biosolids sludge; (b) a system of disinfection piping, said system of disinfection piping comprised of inner biosolids piping concentrically arranged with outer steam piping, said inner biosolids piping having a plurality of holes arranged at a desired spacing around its perimeter; (c) first biosolids pump means for delivering a quantity of biosolids to said storage tank for disinfection; (d) second biosolids pump means for delivering a flow of biosolids from said storage tank to said inner biosolids piping; (e) steam pump means for delivering a flow of steam to said outer steam piping and thereby injecting a flow of steam from said outer steam piping into said inner biosolids piping through said holes in said inner biosolids piping; and (f) control means for continuously and simultaneously operating said first and second biosolids pump means and said steam pump over a predetermined period of time for circulating a flow of biosolids through said inner biosolids piping simultaneously with a flow of steam through said outer steam piping performing.