The Use of Waste Heat in a System for Animal Waste Conversion with By-Product Recovery and Recycling.

摘要

Society faces many problems related to its growth in numbers and standard of living. Of major concern are the consumptive use of non-renewable natural resources and the environmental degradation resulting from pollution. An animal waste management scheme was developed on the premise that one solution to these problems is the development of integrated production systems with recycled resources. It is proposed to use microorganisms to convert animal waste into a high protein animal feed and a methane-rich fuel gas. A conceptual design for such a system is described and results are presented of preliminary experiments conducted in the laboratory. It was decided to use photoautrophic algae for nutrient recovery. Data are presented which demonstrate that based on its mineral composition swine manure is a suitable medium for algal growth.