CUPOLA M3

3 MEMBRANE GAS HOLDER DOME

The CUPOLA M3 domes are used in industrial and municipal WWTP plants.

The CUPOLA M3 domes are used in industrial and municipal WWTP plants. They install quickly and can be manufactured with different quality of materials and shapes to suit the needs of the customers. Special high pressure covers can be manufactured with reinforced membranes and oversized welding.

Three membrane constant-pressure domes are designed to store biogas coming directly from anaerobic digestion of organic waste and sludge. They are manufactured with biogas resistant polyester reinforced PVC membranes seam welded by high frequency electronic machines. The welding of the internal membrane is made adding an Eco-Safe layer of pure PVC that stops every porosity of the fibres to the biogas.

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The CUPOLA M3 domes are used to replace old steel gas holder domes, existing in present waste water treatment plants. Storage volumes can be maintained or increased and installation takes approximately one week to complete, while reducing replacement and maintenance costs.

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The exclusive CUPOLA M3 system is designed to form an upper air chamber that gives a pneumatic push on the biogas chamber, which keeps the biogas chamber at a prefixed and constant positive pressure. The two chambers are divided from each other by a double membrane layer that ensures complete safety against the formation of a dangerous air and gas mixture.

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MAIN FEATURES

High Safety Level:
Ecomembrane’s PATENTED 3 membrane system negates any possibility of a gas and air explosive mix because the biogas chamber is completely divided from the air compensation chamber. Any possible leakage from the gas membrane will be directly pushed outside trough special fitting passages that allow the natural gas discharge.

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Low Energy Consumption:
The compensation air blower only operates when the biogas is being used from the gasholder and switches off when the gasholder is filling. The air blower is controlled by a pressure sensor and an air valve is fitted to the air chamber and set to limit the maximum operating pressure ensuring constant pressure of the biogas throughout the filling and emptying cycle.

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Long Life:
3MASTER gasholder domes are UV resistant and designed to withstand substantial wind and snow loadings. The internal membrane is biogas tight. Three membrane constant-pressure gasholders are designed to store biogas made from anaerobic digestion of organic waste and sludge. They are manufactured with biogas resistant polyester reinforced PVC membranes seam welded by high frequency electronic machines. The welding of the internal membrane is made adding an Eco-Safe layer of pure PVC that stops every porosity of the fibres to the biogas.

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MAIN COMPONENTS

 


Special shape for balconies location

Ecomembrane is able to design and realize its own membranes in order to be adapted to any kind of balcony for human access box located on the perimeter of the digester and equipped with mixers and accessories for sewage or gas management.

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Based on customer requirements, Ecomembrane suggests the most appropriate form for membrane integration in order to not create stress on any of the surfaces. Ecomembrane is also skilled of studying and manufacturing dedicated stainless-steel balconies and supports so as to fully respond to the customer's accessibility requirements.

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