Biogas cover membranes to equip anaerobic digestion plants

I What is Biogas cover PVC roof membranes?

Membrane covers for biogas plants is a modern double membrane roof. It has a relatively large variable gas-storage volume for biogas installations and other purposes. Its shape and membrane pressure mean that weather has little influence on the cover. 

biogas membranes are so called MLCs (Multi-Layer-Composites) whose components and structure are designed to meet the requirements of the biogas industry. Compared with common PVC-coated tarpaulins, biogas membranes guarantee reduced methane permeability and high chemical resistance.

The structural core of the membrane consists of high-strength polyester yarns that carry the static forces of a building. The polyester woven base cloth stabilized and protected by multiple layers of PVC, especially developed for biogas applications. The surface of the membrane is then sealed with a specific lacquer.

II Specification for Biogas membrane

OUTER MEMBRANEPVC (GERMANY / SPAIN) 900 - 1300 G/M3

INNER MEMBRANEPVC / FPP (GERMANY / AUSTRIA) 700 - 1100 G/M3

COLORGREEN / GRAY

VOLUMEUP TO 40 M

III Biogas membrane advantages

1 OPERATIONAL LIFE

Covers are nonresponsive to weather influence: high wind resistance, low probability of snow accumulation by streamlined shape and membrane pressure

2 BIG STORAGE VOLUMES

Variable gas storage volumes (having 25 m diameter storage volume is 230% more than in standard constructions)

3 DOME ERGONOMICS

The bottom membrane tape has
lower gas permeation than the upper
one. It puts minimal stress on the
silo/bunker by its hemispherical shape.

IV Applications for Biogas membrane

1 Double membrane gas holders

Biogas is considered a sustainable and decentralized form of energy generation.
Self-supporting low-pressure storage systems made of double membranes are among the most efficient plant types: While the inner membrane stores the biogas, the outer membrane works as the outer shell. Since the construction is designed as an air-supported structure, it does not require a load-bearing element.
biogas membranes help to ensure minimal methane migration. Our products provide the highest functionality and reliability needed in this field of application.

2 Double membrane gas holders with placed roofs

Similar to the biogas holders, double membrane biogas roofs serve as storage space for digester gas, and are mounted onto an existing fermenter tank. A central pole supports the roof, which consists of both an outer membrane for weather protection and an inner membrane that seals the digester gas-tight.
SATTLER PRO-TEX biogas membranes offer the highest resistance to biogas components and the best protection against inclement weather.

3 Biogas roofs

Liquid manure, waste water tanks and silo containers do not usually spread pleasant smells, and should not be unnecessarily filled up with rainwater. Biogas roofs made of membranes are a highly efficient solution to both problems: the surroundings are shielded from smells to the greatest possible extent while the cover prevents rainwater infiltration. SATTLER PRO-TEX biogas membranes are also highly resistant to aggressive substances that can develop in the condensate.

4 Biogas bags

Inner membranes are used both to store the biogas in so-called double membrane gas holder, and also serve as housing for biogas bags mounted on buildings or steel or concrete tanks. SATTLER PRO-TEX biogas inner membranes are flexible and reliable functional fabrics, making them ideal for biogas storage applications.

V Introduction for DERFLEX

DERFLEX is a professional manufacturer of . We have our own factory, which is located in Zhejiang province, China , with 7 production lines, the supply capacity is 300,000sqm/month. We can produce different kinds of wide format digital printing media. Such as coated Frontlit, backlit, laminated PVC tarpaulin, blockout,mesh,self-adhesive vinyl, one-way vision, perforate vinyl, wide format print cotton canvas, PVC coated tarpaulin, photo paper, reflective material, projection screen fabric.

Our main product is PVC tarpaulin and it is widely used as truck/trailer/container cover, tents, pallet cover,strip garden fence,

awnings, inflatable products, adumbral materials for building facility and house.

For further business communication, welcome to contact:

Tel: +8617316447897(whatsapp&wechat)

Email: ellaine@derflex.com 

Web: www.derflex.com