Materials biomass ( organic waste , animal waste , aquatic weeds , weed the garden and plant new life or death ) fermented in an airtight reactor , with the help of bacterial methanogenesis plant - contained in the Green Phoskko GP 7 - will produce biogas ( CH4 ) . Reactor for process airtight ( anaerobic , or without oxygen ) forms a dome ( Fixed - dome ) , with a capacity of 4 m3 's , then called Biogas Digester BD 4000L . The reactor had to be strong for the gas pressure generated at 5 kg/cm2 and tolerant of the chemical properties of methane ( CH4 ) , CO2 ( carbon dioxide ) , very little N2 , H2 , O2 and H2S ) .

Digester BD 4000 L made ​​of fiberglass resin LPE PL 07 , 400 Wr mat type ( woven mat ) and mat - Kwe Jushi 300 ( random ) 300 x 104 , catalyst Butanox , mirrors glase , pigment HCA Dolphin Greenserta aerosil HDK has a wall thickness 3-5 mm , has a 0.7 mm PVC cover couting , require stuffing slurry biomass feedstock ( manure , or organic waste or plants ) 4 m3 or 4 tons further requires 0.2 tons of raw materials as stuffing ( BBI ) / day decomposition since the first cycle to 20 days . Capacity of 4 m3 of material inputs plus 1 m3 gas holder , has the Dimension ( diameter 160 cm , height 244 cm ) , will be able to survive up to over 10 years .