Methane Digester

Methane digesters are an old idea. Take cow or other animal manure, add water and let it compost a bit a closed container. Methane is given which can be collected and compressed to use a a fuel. The remaining liquid can be sold as fertilizer any fiberous material can be dried and sold and bedding material. Kevin Maas is a guy in Oregon who has built a small business around power generation using methane digesters [1]. The article quotes $3 million to get a digester-based power generator up and running. Likely OSE could do FAR better than that.