HDPE impermeable membrane, also known as HDPE geomembrane,  is the geotechnical material that is widely used as the anti seepage lining material in water or waste containment applications. BPM high-quality HDPE geomembrane is made of high-density polyethylene (HDPE) raw materials with carbon black, anti-aging agents, anti-ultraviolet absorbers, stabilizers and other auxiliary materials. The HDPE impermeable geomembrane liner have excellent resistance Ultraviolet radiation, and is suitable for outdoor construction sites. HDPE impermeable membrane has good anti-leakage performance, excellent chemical resistance, excellent environmental stress crack resistance, high cost performance, good overall continuity, convenient construction and environmental protection. BPM HDPE impermeable membrane is widely used in various occasions including waste treatment, water treatment, aquaculture, industrial projects, energy projects and mining projects and other industries

HDPE geomembrane has good resistance to environmental stress cracking, low temperature resistance, aging resistance, corrosion resistance, operating temperature range (-60℃+60℃), and the service life can be up to 60 years. HDPE geomembrane has an anti-seepage effect that ordinary waterproof materials can’t match. The HDPE impermeable geomembrane has high tensile mechanical properties. Its excellent elasticity and deformability make it very suitable for the expansion or contraction of the base surface. It has excellent chemical stability and is used in sewage treatment, chemical reaction tanks, and landfills. The HDPE geomembrane has excellent corrosion resistant to high and low temperature, asphalt, oil, tar, acid, alkali, salt, more than 80 kinds of strong acid and alkali chemical media. It has good mechanical strength, the tensile strength at break is 28Mpa, and the elongation at break is 700%. The materials used in the impermeable membrane are non-toxic and friendly. The principle of anti-seepage is ordinary physical changes, which do not produce any harmful substances. It is the best choice for environmental protection, aquaculture, and drinking water tank liners.

HDPE Impermeable Membrane for Australian Sewage Treatment
HDPE Impermeable Membrane for Australian Sewage Treatment Porjects

HDPE impermeable membrane produced by 3-layer blow molding machine. The film bubble is stable, the cooling effect is good, and the production capacity is high. During the manufacturing and installation process, the integrity of the gasket and cover must be guaranteed. Manufacturers will perform electrical spark testing to detect pinholes and defects during the manufacturing process, but electrical lining integrity testing must also be performed during installation to ensure system safety. Integrity testing is performed during installation to ensure system safety.

Case Analysis

  • Construction site – Australia
  • Products used – HDPE geomembrane with a thickness of 1.5mm
  • Application – Sewage treatment
  • The area of geomembrane used in construction: 18620㎡
  • The size of each roll of HDPE geomembrane is 7m*50m

Problem

The sewage treatment plant is used to receive and treat all sewage produced by residents and businesses in the area. Various detergents, sewage and garbage used in urban life are mostly non-toxic inorganic salts. Domestic sewage contains nitrogen, phosphorus, sulfur and pathogenic bacteria, which is one of the main pollution sources of water bodies. As the population gathers, the discharge of domestic sewage is also increasing.

During the production process, chemical companies often need to temporarily store part of the sewage generated by equipment transformation or temporary construction. If the sewage treatment exceeds the national standard, it can only be stored first and discharged after the treatment is qualified. This involves the construction of sewage treatment tanks. Its biggest feature is temporary, but it requires a large amount of sewage to be stored.

Domestic sewage usually contains a lot of pathogens. These pathogenic microorganisms have the characteristics of large number, wide distribution, long survival time, fast reproduction speed and resistance to human diseases.

If leakage occurs in the sewage treatment plant, the environmental pollution will be very harmful. After the soil is contaminated, it will be salinized and poisoned, and pathogens such as parasites and pathogenic bacteria in the soil can make people sick. Infiltration can also pollute groundwater and eventually enter the human food chain, causing serious harm to the human body. Customers hope that we can find a suitable solution to solve this problem as soon as possible.

Solution

When constructing the reservoir, the engineers of the project wanted a reliable and long-life geosynthetic product. The engineer wanted to protect the HDPE impermeable membrane from mechanical damage and thermal expansion and contraction through the cost and maintenance of the cover layer. In addition, people are also worried about the shrinkage caused by icing and temperature changes in winter.

After browsing the related products on our website, the engineer sent us an inquiry. We have a detailed understanding of the customer’s needs and read the construction plan provided by the customer. Therefore, BPM recommends HDPE geomembrane with a thickness of 1.5mm that meets the requirements of this project and consulting engineers. We sent him geomembrane samples, company certificates, product test reports and other information. After receiving the samples, the customers are very satisfied with our products.

HDPE impermeable membrane is a geomaterial with convenient transportation, convenient construction and short construction period. At the same time, the cost of the anti-seepage system is more than 30% lower than that of the traditional reinforced concrete anti-seepage structure. And HDPE geomembrane has strong acid and alkali resistance, anti-aging, anti-ultraviolet abilities, can be used quickly in various complex environments, and is durable.

HDPE geomembrane liner has high tensile mechanical properties. Its excellent elasticity and deformability make it very suitable for the expansion or contraction of the base surface. It can effectively overcome the uneven settlement of the base surface. Water vapor permeability coefficient K<=1.0*10- 13g.cm/c cm2.s.pa. Chemical stability-The impermeable membrane has excellent chemical stability and is widely used in sewage treatment, chemical reaction tanks, and landfills Field, tailings treatment. HDPE geomembrane is resistant to high and low temperature, asphalt, oil, tar, acid, alkali, salt and more than 80 kinds of strong acid and alkali chemical media. It is a good choice for sewage treatment tanks.

HDPE Geomembrane for Australian Sewage Treatment
HDPE Impermeable Geomembrane for Australian Sewage Treatment

Benefit

HDPE impermeable membrane is a high-density version of PE plastic, which is harder and denser than LDPE, and lighter than water. Facts have proved that the enhanced HDPE membrane plays an important role in preventing air and groundwater pollution. The best thing is that it can be easily molded and welded together, and the use of UV stabilizers can improve its weather resistance. HDPE geomembrane meets the requirements of today’s environmental engineering field. The main advantage of HDPE geomembrane is to keep it natural and clean.

The anti-seepage problem of the sewage pond is a big problem. If it is not done well, all the previous work will be wasted if it is leaked; if the impermeable material is not selected well, the impermeable effect will also be affected. Sewage often contains a lot of strong acid and alkali corrosive substances, or contains toxic and harmful substances and heavy metals that have a greater impact on the environment. Therefore, it is necessary to select high-quality anti-seepage materials for anti-seepage treatment of sewage ponds. HDPE geomembrane is made of high-density HDPE as raw material, added with anti-oxidation and anti-ultraviolet special additives, and produced by advanced three-layer extrusion blow molding technology. It has high impermeability. It is suitable for environmental protection fields such as high-level sewage tanks, high-pressure black film biogas tanks, and seepage-proof garbage dumps. It plays an indispensable role in many environmental protection projects. HDPE geomembrane is very suitable for the anti-seepage treatment of sewage tanks.

The main functions of HDPE impermeable membrane are as followed.

  1. HDPE geomembrane is a flexible waterproof material with high permeability coefficient (110-17cm/s);
  2. It has good heat resistance and cold resistance, and the working environment temperature is 110℃ And -70℃;
  3. Good chemical stability, resistant to strong acid and alkali corrosion. It is a good anti-corrosion material;
  4. With high tensile strength, it has high tensile strength. Meet the requirements of high-standard engineering projects;
  5. Strong weather resistance, strong aging resistance, and maintain the original performance after long-term exposure;
  6. Good comprehensive performance, with strong tensile strength and elongation at break. It can be used in a variety of harsh geological and climatic conditions to adapt to uneven geological settlement.

Conclusion

HDPE geomembrane liner is convenient for transportation, convenient construction and short construction period. At the same time, the cost of the anti-seepage system is more than 30% lower than that of the traditional reinforced concrete anti-seepage structure. And HDPE geomembrane has strong acid and alkali resistance, anti-aging, anti-ultraviolet abilities, can be used quickly in various complex environments, and is durable.

The sewage treatment project has been in continuous operation since its completion. A small amount of maintenance and upgrades were carried out in this process, but no changes or changes were made to the lining system. Monitor shallow groundwater wells near the reservoir to determine the presence of wastewater to ensure the integrity of the containment system. This year’s inspection of HDPE geomembrane did not reveal any problems and signs of degradation or mechanical damage.

HDPE impermeable membrane has the following advantages in sewage treatment applications

  1. Simple construction. As long as the pool is dug and leveled accordingly, concrete paving is not required
  1. Rapid construction. Unlike concrete, no solidification period is required;
  1. Resistance to foundation deformation. HDPE geomembrane has good elongation at break and can resist foundation settlement or foundation deformation;
  1. Good effect. This is the biggest feature of HDPE geomembrane.
HDPE Impermeable Membrane for Australian Sewage Treatment Project

About BPM

BPM has been specializing in delivering one stop geosynthetics products and solutions to worldwide customers since its foundation in 2007. BPM had provided many types of effective and state of the art geomembranes, geotextiles, geocells, geosynthetic clay liners (GCLs), drainage boards, geogrids to over 81 countries. Our main customers are from Australia, France, Sweden, UK, Hong Kong, Hungary, New Zealand, Poland, Mexico, Ecuador, Brazil, Pakistan, Bangladesh, Thailand, Vietnam, Malaysia, Indonesia, Singapore, Philippines, Sri Lanka, India, UAE, Saudi Arabia, Qatar, Kenya, Ghana, Ethiopia, Somalia, Nigeria, South Africa, Swaziland, Mongolia, etc.

BPM is not only manufacturing best quality geosynthetic products but also providing professional design and installation service. OEM, ODM, custom development and fabrication are also available. If you have any questions or inquiries,  please fill and submit the following form, we will reply as soon as possible.