Technical Characteristics and Construction Technology of Black Membrane Biogas Digester

Black membrane biogas digesters was characterized by anti-seepage，leak-proof and easy-heat absorption of HDPE membranes.They formed a confined space through welding，and aquaculture waste water was subjected to anaerobic fermentation to achieve dual effects of sewage treatment and biogas production.It has low construction cost，convenient management and wide application range.Characteristics，process flow，scale design and construction technology of black membrane biogas digesters were introduced to provide reference for construction of black membrane biogas tanks by farmers and construction workers.