Biogas Methane Digester Brand Name: YJY Model Number: YJY-4 size: family size produc: biogas, fertilizer, reclaimed water treament principle: anaerobic fermentation feature: easy to transport, install appliance: biogas generator, rice cooker, stove, lamp etc. .Biogas Methane Digester 2.latest design for family size sewage treatment 3.composed of anaerobic digester, anaerobic digester with filter, water pump, sludge pump and the appliance. 4.easy to maintain and long life span. 5.anaerobic fermentation, produce biogas, fertilizer, reclaimed water 6.biogas can be used for generating electricity, cooking, heating, lighting and so on.