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Shanghai Farm Turns Hog Manure Into Power
28 Apr
Summary
- 80,000 hogs raised annually in a closed-loop system.
- Waste transformed into biogas powering nearby farmland.
- Surplus biogas integrated into Shanghai's urban gas network.
The Songlin Ecological Agricultural Zone, located on the outskirts of Shanghai, has pioneered an innovative approach to industrial agriculture by operating a closed-loop system that converts animal waste into valuable resources. Raising about 80,000 hogs each year, the facility processes 100,000 metric tons of waste annually, producing 3.65 million cubic meters of biogas.
This biogas slurry is expertly recycled to fertilize 867 hectares of nearby farmland, resulting in substantial savings of 2 million yuan ($290,000) on fertilizer costs. Fu Juanlin, general manager of the zone, highlighted that waste is now a valuable resource, preventing ground and atmospheric pollution with zero emissions.
Furthermore, the agricultural zone has successfully integrated surplus biogas, purified into biomethane, into Shanghai's urban gas pipeline network. This initiative marks the first such integration in Shanghai, revolutionizing biogas utilization and converting agricultural waste into green energy.
