... desulphurization tower and the dehydration tower), the biogas storage and delivery system,biogas appliances or generators.Features:( ... concrete digester neck of the PUXIN medium and large size biogas digester, and the concrete tank ... is used to cover the digester. GAS STORAGE BAG 50M3Materials:Red Mud reinforced plasticsThickness 1.0mm ... h,head: 10meters,Power:5.5KW large scale sewage treatment system