NOTHING WASTED

摘要

Anoxic gas flotation (AGF), a promising new waste treatment process, can turn up to 95% of organic slurry waste into valuable natural gas and fertilizer while producing energy. A pilot AGF treatment plant used at two potato processing facilities in eastern Idaho was able to convert 95% of concentrated raw potato slurry waste into gas and soluble products. With hydraulic retention times as low as one day, the agf process recovered 85% of the phosphorus and 23% of the nitrogen in the potato slurry to produce a large quantity of pipeline-quality (36,500 kJ/m~3) natural gas.