Tanks and membranes — digesters and biogas storage

Digester tanks and their gas-tight covers decide the leak-tightness of the plant, biogas storage and heat losses.

Articles on concrete and steel tanks, single- and double-membrane roofs, membrane materials, fixing and sealing, insulation, leak-tightness inspections and replacing and repairing covers.

Tanks and membranesAnalysis5 November 2026

Checking the tightness of a biogas installation without risky tests

How to check the tightness of tanks, membranes and biogas pipework using non-invasive methods: optical gas imaging, detectors, gas balance and observation, with no tests on flammable gas.