... cost with aotu-system The semi-spherical dual membrane biogas equipment for biogas plant It adopts the special biogas membrane material with ... control devicePreussre and volume display onctrolling boxEasy to handle with our auto-systemUse waste to produce biogas for generatingSpecifationVolume(m3): 50,80,100,150 ... ,800,900,1000,1200,2000,2500,3000 Dual membrane biogas equipment for biogas plant