| Popis: |
A scaled-up bench-designed digester to treat slurry from a 300-sow piggery (6,000 pigs/year) has been assessed in terms of its performance over two years. Broadly speaking it functioned continuously, reducing the pollution load on the environment by 60% on the average with the other advantages of a reduction in slurry odor, easier solids disposal, and better grassland management through solids separation and irrigation of the effluent. The gas was used to provide electrical power (max 300 kW/d) sufficient to operate the farrowing house. |
