Some communities are using methane gas harvested from solid waste to power smaller facilities like sewage treatment plants, but San Antonio is the first to see large-scale conversion of methane gas from sewage into fuel for power generation, he said. Following the agreement, more than 90 percent of materials flushed down the toilets and sinks of San Antonio will be recycled, he said. Liquid is now used for irrigation, many of the solids are made into compost, and now the methane gas will be recycled for power generation.
More HERE.
