After gas is produced, there will be some residual liquid. That will be dewatered to make a fibrous material which can be used as animal bedding. The remaining liquid will be stored in this container and then sprayed onto the field as fertilizer. Since everything is recycled, the nutrients from the food will remain in this liquid and be fed back to the soil.
April 4, 2011 4:00 AM PDT
Photo by: Martin LaMonica/CNET
| Caption by: Martin LaMonica
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