biogas geomembrane

Biogas Geomembrane System

Geomembranes are gas holder systems used to store biogas from biogas plants. Geoembranes are generally formed in an intertwined manner. The inner geomembrane provides protection to the place where biogas is stored, and the outer geomembrane provides protection to the inner geomembrane against external factors. There must be an air gap between the inner geomembrane and the outer geomembrane. This air gap ensures that the Poly Vinyl Chloride coated geomembrane remains stable thanks to the air fans.


Biogas roof systems are “gas tight” or “odor proof”. The material used for the geomembrane roof system is a geomembrane material specially produced for climatic conditions, especially developed and produced for use with biogas tanks. High quality geomembrane with a thickness of 1.5 mm or 2.0 mm is produced according to the inner diameters of the Digesters designed in the project.


The components required for the system are listed in the example below:
1.5 or 2 mm Geomembrane
Central support column for Membrane and Network system in the middle of digester
PE (Polyethylene) Knotted, UV added, 750 kg resistant fishing net system
Network system fixing screws on the column
Polyester ropes between Central Support and wall fixed hook
Wall fixing hooks for Polyester Ropes on top of column
Galvanized clamping rails for fixing the geomembrane
Compressed air system on Compression Rails
A crane, telescopic work platforms or scaffolding installation is required for installation.
Poly Vinyl Chloride Double Membrane System
The material used for double membrane roof systems is a Poly Vinyl Chloride coated polyester fabric produced specifically for use in biogas systems. It is highly flexible, airtight, UV resistant, flame retardant. 0.35mm and 0.55mm thick, 2000g/m, weight 1500g. The gas permeability of the geomembrane is between <200 cm³/(m² d bar) and<500 cm² /(m² d bar). It can be made in special colors. The material is high frequency welding.


Biogas Geoembrane Systems
Geoembrane Systems for Biogas and Wastewater Facilities
Production method of membranes:
There are two types of membranes produced in the world.

High frequency (HF) source:
It is a process that uses an alternating current of high frequency and voltage to weld geomembrane materials. This type of welding is often used in gas-tungsten arc welding (GTAW) power sources because the HF current ionizes a path for non-contact arc initiation and stabilizes the arc when welding with alternating current.

Air welded Hot Air Source:
Hot air welding, also known as hot gas welding, is a popular technique that has been used for decades in a variety of industries, including automotive, roofing, signage and more.


This method involves heating the thermoplastic material to its melting point and then joining the pieces together using a stream of hot air. The resulting bond is strong, often stronger than the original material.

High Frequency welded geomembranes can be produced by companies with large engineering and R&D departments that specialize in this field. The cost is higher because geomembranes have the highest level of sealing and are used for regions with difficult weather conditions.
Air welded geomembranes have very low resistance to harsh weather conditions and do not provide long-lasting efficiency. It is very difficult to use in continental climates and very windy areas.
It is specially produced for difficult weather conditions and offered to the customer.
During the production of geomembranes, membranes are produced radially and parallelly.
We have the title of being the only company in the world that can produce parallel designs.

Why should you choose us for biogas special geomembranes?
High Frequency welded production
We are the company that can provide the highest snow load and wind resistance values.
We are the only company in the world that can produce parallel type geomembranes.
All other companies engage in radial production.
 biogas geomembrane