Membrane Gas Holder, Worksop WwTW, UK

Client: Severn Trent Water

Project summary: Supply and install membrane biogas holder

Project Scope

To supply a pvc membrane gas holder on a new digester site.

Design Requirement

A ¾ sphere PVC double membrane gas holder with a capacity of 500m3 and an operating pressure of 22mbar.


The membrane gas holder complete with duty and standby air blowers, viewing windows, gas holder level sensor, gas leak detection, air pressure control valves and a 4 post ‘rolling sphere’ lightning protection system was delivered, installed and commissioned by our own site installation team.


The gas holder provided storage and a constant gas operating pressure in all conditions.

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