HDPE Impermeable Geomembrane for Biogas Pool Project in Thailand
The black HDPE impermeable geomembrane liner cover for biogas digester improves the efficiency of biogas fermentation by relying on black geomembrane to absorb heat. The principle of biogas production is the same as that of a traditional biogas digester. It uses the advantages of HDPE geomembrane to prevent leakage. Lay a layer of HDPE impermeable geomembrane liner on the dug soil in the pit, the slag extraction pipe and the biogas collection pipe are installed in the pond according to the anaerobic fermentation process for the water easily inlet and outlet. The bottom of the slag discharge pipe should be close to the bottom HDPE impermeable geomembrane liner. The gas pipeline of the biogas digester uses ø200mm PE pipe, which can withstand the pressure above 10kpa. Before installing the gas pipeline, check whether the gas pipeline is leaking, especially the buried gas pipeline. Anchor ditch is excavated 1.5m around the earth pit pond, the size of the anchor ditch is 1m*1m, and the limited internal and external corners are rounded and chamfered. After laying the HDPE base geomembrane, fill the plain soil with a thickness of 20cm. After the top geomembrane is laid, fill the anchor trench with plain soil and ram. Cover the HDPE impermeable geomembrane to seal it, and then anchor the ditch to fix the geomembrane to form an integral anaerobic fermentation space.
Construction of HDPE Impermeable Geomembrane for Biogas Pool Project in Thailand
1、Before cutting the geomembrane, the relevant dimensions should be accurately measured, and then cut according to the actual size. Generally, it is not advisable to cut according to the size shown in the figure. It should be numbered piece by piece and recorded in detail on the special form.
2、When laying geomembrane, we should try to minimize the number of welds, and save raw materials as much as possible on the premise of ensuring quality. At the same time, it is easy to guarantee the quality.
3、The overlap width of the seam between the HDPE impermeable geomembrane liner is generally not less than 10cm, and the welding seam is usually arranged in parallel to the maximum slope, that is, along the slope direction.
4、Usually in corners and deformed areas, the length of the joints should be as short as possible. Except for special requirements, on slopes with a slope greater than 1:6, within 1.5 meters from the top slope or stress concentration area, there should be no welds as far as possible.
5、When laying the geomembrane, avoid artificial wrinkles. When the temperature is low, it should be stretched and flattened as much as possible.
6、After the geomembrane is laid, it is necessary to minimize walking and moving tools on the surface of the membrane. Anything that can cause harm to the impermeable membrane should not be placed on the membrane or carried on the membrane to avoid damage to the membrane. Cause accidental damage.
Advantages of Dingkun geomembrane in biogas digester project
Smooth HDPE impermeable geomembrane liner is designed and made of high quality polyethylene resin with proportional carbon black antioxidant, anti-aging and UV-resistance materials which exhibit impermeable and ultraviolet resistance properties. Compared with traditional concrete and compacted clay, smooth geomembranes have proven to be more cost effective, safe and fast deployment. And it can be anti-static treatment, it is very suitable for biogas digester project.
The Thailand customers contacted us through website, and hoped that the DKM team would provide biogas digester construction plans and HDPE impermeable geomembrane products. Taking into account the project specifications and environmental protection, our engineer suggested that he use GM-13 standard HDPE geomembrane with thickness of 1mm and 1.5mm, the cover of the biogas digester should use a pond lining with a thickness of 1.5mm, and the paving ground should use a pond lining with a thickness of 1mm. board. DKM also sent engineers to guide the construction at the customer’s project site. The customer was very satisfied with the service of the DKM team and the quality of the biogas digester.
Polyethylene geomembrane for Biogas Pool Project Specifications
1mm and 1.5mm geomembrane quantity – 23700 square meters
Geomembrane specification – 7m*100m/roll
