AMOCO Dantian Type A ground-mounted double membrane biogas holder (biogas balloon, biogas storage tank, flexible biogas storage bag, biogas storage vessel) works as an independent gas storage system, normally a hemispherical shape, which is also the common shape of double membrane biogas holders.

Compared to other shapes, the Type A double membrane biogas holder has the advantages of large storage capacity, easy installation, and ease of use and maintenance. It can be installed and maintained separately due to its independent features, so its effect on biogas production and other storage systems is minimal.

Due to its independent system, the internal pressure of the Type A double membrane biogas holder can be different from the pressure inside the digester tank, and can be individually set.

The Type A double membrane biogas holder can be customized with ultra-large capacity over 10,000 m³ at constant pressure, which is suitable for biogas projects with a large daily volume of biogas production.

Photos of AMOCO Type A double membrane biogas holder projects: Vientiane, Laos (left) and Heilongjiang, China (right).