... , etc.) to treat sewage and food waste. .For medium size biogas system we design the biogas system, sell all the equipment and products ... the PUXIN medium and large size biogas digester, and the concrete tank for hydraulic pressure gas holder.Reusable GLASS FIBRE PLASTIC GAS-COLLECTER1 ... , head: 10meters, Power:5.5KW PUXIIN medium and large size biogas project