Method of bringing gases into contact with compostible material or partially composted material, and an arrangement for carrying out the method
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Aug 28, 1990
Issued Date -
N/A
app pub date -
Jun 6, 1984
filing date -
Jun 6, 1980
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A method for bringing gases into contact with compostible or partially composted material, in which the material placed in the form of a mass on a layer of particulate material and gas, preferably air, is passed through the material, the air being introduced into the mass through gas-distributing means embedded in or covered by the layer of particulate material, and in which the layer comprises a first part-layer of relatively coarse particulate material intended to serve as protection for the gas-distributing means and as a distributing filter for the through-flowing gas, and a second part-layer arranged upon the first part-layer and comprising relatively fine particulate material, the second part-layer being intended to distribute the through-flowing gas before the gas is introduced into the compostible or partially composted material. The second part-layer of the layer comprises a mixture of the relatively fine particulate material, as ballast material, and a binding agent and has such a particle size distribution and the ingredients are present in such mixing proportions that the second part-layer obtains an open porous structure having a pressure drop suitable for uniform gas distribution while, at the same time, being able to withstand the weight of heavy vehicles.
First Claim
Other Claims data not available