Patent ID: 8292543

Claim:
A bioreactor comprising: a compostable material; and at least one bioreactor cell located in the compostable material wherein the bioreactor cell further comprises: a sloped first porous material layer having a length X, a width Y, a bottom surface and a top surface and including at least one trench; a second porous material located in the at least one trench, the second porous material extending out of the at least one trench and above the top of the first porous material layer; and at least one perforated gas collection pipe that is located in and substantially covered by the second porous material wherein the first porous material layer has a length X of from about 100 feet to about 1000 feet and a width Y of from about 60 feet to about 1000 feet and wherein the bioreactor does not include a covering barrier material.