Artificial Lake Geomembrane

The Artificial Lake Geomembrane is made from a new type of original high-density polyethylene resin, with the addition of environmentally friendly, non-toxic, UV-resistant, anti-aging, and high-temperature resistant special additives. It is produced through an extrusion and blow molding process and is a specialized environmentally friendly anti-seepage geotechnical material for landscape gardens and municipal water conservancy projects.

The product is green and non-toxic, and will not harm the aquatic plants, ornamental fish and shrimp in the lake. It meets the requirements for ecological water feature construction. At the same time, it has high strength against tearing, strong resistance to puncturing, resistance to water body corrosion, and resistance to lake surface wind and wave erosion. It is available in a conventional buried type and an outdoor anti-aging type.

It can adapt to long-term outdoor exposure to sunlight, seasonal temperature differences, lake water immersion, and completely solve common problems such as water seepage in the sand base of the artificial lake, continuous water level drop, floating of bottom mud, turbid water body, water and soil erosion on the slope, and slope collapse. It is a standard anti-seepage material for residential landscape lakes, municipal parks' artificial lakes, and ecological water feature projects.

Core Technical Indicators of Artificial Lake Geomembrane

1. Common thickness specifications for selection

• Small shallow landscape lake (water depth 0.5 - 1.2m, courtyard / small water pool): 0.4mm, 0.5mm HDPE anti-seepage membrane

• Regular artificial lake (water depth 1.2 - 2.0m, municipal / park main lake body): 0.6mm, 0.75mm HDPE anti-seepage membrane (standard mainstream specification for engineering)

• Large deep water lake / lake body with rockeries and rubble: 1.0mm, 1.2mm thickened anti-seepage membrane, resistant to stone edges and crushed stone puncture damage

• Open-air bare lake surface without soil cover: High UV-resistant and anti-aging anti-seepage membrane, long-term resistant to sun exposure and weathering

2. Key performance parameters

• Anti-seepage performance: Permeability coefficient ≤ 1×10⁻¹³ cm/s, excellent anti-seepage barrier effect, firmly locks the lake water, reduces the frequency of daily water replenishment

• Environmental performance: Produced with new raw materials, no harmful substances are released, does not pollute water quality, suitable for ecological lake breeding ecosystem

• Mechanical performance: High longitudinal and transverse tensile strength, resistant to slight lake body settlement, wind waves pounding, and artificial maintenance without cracking or tearing

• Weather resistance: Resistant to low temperature of -35℃ without cracking, resistant to high temperature of 70℃ without softening, resistant to long-term corrosion by lake water acidity and algae

• Service life: Open-air bare use for 10 - 15 years, lake bottom covered with soil and buried for up to 20 years or more

• Anti-puncture performance: Can resist puncture by lake bottom crushed stones, tree roots, and hard objects of rockeries and stone materials, ensuring the integrity of the anti-seepage structure

Application Scope

• Landscape water features

Artificial lake in the community, landscape lake in the municipal park, ornamental pool in the courtyard, impermeable water feature for dry sprinkler systems

• Leisure waters for tourism and recreation

Landscape river in the tourism town, sightseeing water channel, waterfront platform waterscape, impermeable isolation for small water parks

• Sponge city projects

Rainwater storage lake, pond renovation into artificial lake, ecological river channel restoration for impermeable isolation

• Lake slope protection and prevention

Impermeable protection for the slope of the artificial lake, overall impermeable protection of the lake bottom, soil and water conservation on the slope to prevent sediment leakage and turbid water body

Field Engineering Case Basic Information

• Project Location

Renovation Project of the Artificial Lake in Baoding Municipal Park, Hebei Province

• Construction Period

May 2022

• Project Scale

Total area of the lake is 8,600 square meters, including the main lake body, landscape tributaries, and cascading water feature area

• Selected Materials

0.75mm environmentally friendly and anti-aging HDPE artificial lake-specific anti-seepage membrane

• Project Conditions

The lake surface is completely exposed without soil covering, with significant temperature differences throughout the year. The lake bottom contains a small amount of gravel, and the original pond sand and soil have severe leakage problems. It is necessary to consider anti-seepage, ecological fish farming, and water plant planting requirements

Performance Results

• Stable Anti-Seepage Effect: The Artificial Lake Geomembrane has been in use for 4 years. The membrane body has no aging, cracking, or perforation issues. The welded seams are well sealed, and the lake water level is constant. It completely solves the frequent water seepage and replenishment problems. The operation and maintenance water and labor costs have been reduced by 80%

• Landscape Water Quality Compliance: It effectively blocks the bottom mud upwelling, and the lake water remains clear and clean for a long time. The material is environmentally friendly and harmless, and the green plants and ornamental fish in the lake grow normally, fully meeting the acceptance standards of municipal parks and gardens

• Strong Weather Resistance and Anti-Collapse Capacity: It is not afraid of summer sun exposure or winter lake freezing. The slope has long been exposed to wind and waves, without bulging, sliding, or damage. It is suitable for complex outdoor climates

• Simple Post-Operation Maintenance: No need to regularly check for leakage points or clean up the stirred-up lake bottom sediment. There is almost no maintenance cost in the future, significantly reducing the pressure on the water feature management of the park

Customer's Genuine Feedback

Previously, the sandy bottom of the artificial lake in the park had severe leakage problems, resulting in high water expenses and persistent murky water quality, with poor landscape effects. Since installing this artificial lake-specific anti-seepage membrane four years ago, the water level has remained stable. The lake water is clear and beautiful, and the membrane material remains intact even after exposure to wind and sun. There is no need for repeated repairs and rework. The ecological and anti-seepage effects are all up to standard, and the overall project has a very high cost-effectiveness.

--- Project Manager of Municipal Gardens, Mr. Wang

Maintenance Recommendations

1. Initial Maintenance after Construction Completion

After the artificial lake geomembrane laying and welding are completed, on-site enclosure protection should be implemented to prohibit random foot traffic and the throwing of debris, to avoid sharp edges and hard objects from scratching or puncturing the membrane surface. For the exposed lake surface without soil cover or water injection, temporary shielding protection is required to prevent continuous strong sunlight from accelerating the aging of the surface layer. At the same time, it is necessary to avoid wind and rain disturbances that may cause the membrane surface to shift or fold, ensuring the overall adhesion and integrity of the waterproof layer.

2. Daily Routine Maintenance Management

For daily landscape operations, there is no need for frequent maintenance or dredging. Only regular cleaning of floating branches, debris, and hard waste on the lake surface is required to prevent long-term sediment accumulation from pressing on the membrane and causing local wear. It is prohibited to use steel wire mesh or hard fishing tools to forcefully clean the lake bottom to prevent damage to the waterproof structure by the tools; heavy equipment and vehicles are strictly prohibited from operating near the lake to avoid crushing and damage. Relying on the closed isolation characteristic of the membrane, it can long-term prevent the sediment from rising and stabilize the lake water quality, significantly reducing the frequency of water replacement and dredging.

3. Special Maintenance for Four Seasons

During the summer period of high temperature and intense sunlight, no special protection is required. The UV-resistant membrane material can withstand long-term sun exposure and weathering. Only the accumulated debris on the lake surface needs to be cleared in time to prevent local accumulation of dirt from causing high-temperature aging. During the winter period of low temperature and ice formation, there is no need to empty the lake water. The membrane has stable low-temperature freeze-thaw performance and will not expand and crack due to lake surface freezing. It is prohibited to forcefully strike the ice layer or break the ice surface to prevent damage to the membrane. During the spring and autumn seasons with frequent strong winds and rain, the drainage system near the lake should be promptly cleared to avoid slope erosion caused by rainwater runoff, which may expose and loosen the membrane on the shore.

4. Long-term Use Maintenance and Defect Handling

It is recommended to conduct a simple visual inspection of the lake edge slope and weld seam positions before and after the flood season each year. Focus on checking the corners, lap weld seams, and the closure position of the shore slope to see if there are any warping, hollowing, or damage. If there are only local minor damages, there is no need for overall rework. Use the same specification waterproof membrane for joint patching and hot melt welding sealing. After the repair, allow it to stand for curing and shaping, which will not affect the overall waterproofing and landscape effect, and the maintenance cost is extremely low.

5. Key Points for Maintenance of Ecological Water Features

For artificial lakes with fish farming and aquatic plant cultivation, the daily water quality regulation and chemical agent application will not corrode the membrane. Normal landscape maintenance work can be carried out. When planting aquatic plants, try to use pot planting or floating island planting methods to avoid direct puncturing of the membrane by hard grass roots. This can protect the waterproof layer structure from the source and balance the landscape ecological effect and long-term waterproof stability.

FAQ

Q1: What is the core difference between using virgin material and recycled material for the anti-seepage membrane of the artificial lake?

The difference is significant and directly affects the ecological effect of the water feature. Our factory's Artificial Lake Geomembrane uses 100% brand-new virgin polyethylene raw materials, free of impurities and harmful additives, with clean water and no odor, which does not affect the growth of fish, shrimp, and aquatic plants. It complies with the municipal ecological landscape acceptance standards. Recycled material membranes have more impurities and are prone to releasing harmful substances, which can cause the water to turn green and stinky, and lead to the death of fish and shrimp, as well as rapid aging and damage. They are only suitable for ordinary industrial anti-seepage and are strictly prohibited for use in ecological artificial lake projects.

Q2: How should the membrane thickness be matched for different scenarios of artificial lakes?

Small courtyard shallow water pools and community micro-landscape lakes (with a water depth of 0.5-1.2m) are suitable for 0.4mm and 0.5mm specifications; for municipal and park regular artificial lakes, the mainstream selection is 0.6mm and 0.75mm universal models; for deep water landscape lakes with rockeries, rubble, and crushed stone bases, priority should be given to 1.0mm and 1.2mm thickened anti-seepage membranes, which can effectively resist the puncturing of stone edges and ensure the integrity of the anti-seepage structure, preventing the water from turning green and stinky, and preventing cracking and brittleness due to freezing and thawing cycles. They are suitable for outdoor use in all four seasons.

Q3: Can plants and fish be grown in the artificial lake after the anti-seepage membrane is laid?

Absolutely. This product is an eco-friendly anti-seepage material without toxicity or pollution. It will not change the water quality or pH value, and is suitable for various aquatic green plants and ornamental fish and shrimp. The membrane has strong sealing performance, can prevent the sand and salt in the bottom from surging, and instead can maintain the clarity of the lake water and the stability of the ecological water environment, enhancing the overall aesthetic appeal and ecological stability of the landscape lake.

Q4: Will the membrane be damaged in an open-air artificial lake that is exposed to constant sunlight and freezes in winter?

It will not be damaged. The special anti-UV and anti-aging formula can withstand a wide temperature range of -35℃ to 70℃. In summer, it will not soften or powderize due to strong sunlight exposure, and in winter, it will not crack or become brittle due to freezing and thawing cycles. The membrane can be used for 10-15 years in an open-air exposed condition and has a lifespan of over 20 years in a buried condition under the lake bottom, fully adapting to the complex climate of all four seasons outdoors.