0.5mm LLDPE Geomembrane Liner for Rainwater Harvesting Pond in Ethiopia

A 0.5mm LLDPE Gomembrane is a flexible, low-permeability liner manufactured from virgin LLDPE resin. It is designed to minimize water seepage in rainwater harvesting ponds, agricultural reservoirs, and other projects. In Ethiopia, where rainfall varies considerably across regions and seasons, collecting and storing rainwater is important for maintaining water supplies during dry periods. A 0.5mm LLDPE liner reduces water loss through soil seepage, allowing farmers to make better use of collected rainwater for irrigation and other agricultural activities.

Compared with HDPE geomembrane, LLDPE offers greater flexibility and elongation, making it easier to fit around curved pond bottoms, slopes, and uneven surfaces. For this reason, 0.5mm LLDPE geomembrane for rainwater harvesting ponds is worth considering.

Technical Parameters

Item	Value
Breaking Strength(TD,MD)	≥13N/mm
Breaking elongation(TD,MD)	≥800%
2% Modulus	≤210N/mm
Average tear strength(TD,MD)	≥50N
Puncture resistance	≥120N

Main Functions

1. Prevent Water Seepage and Reduce Water Loss

A 0.5mm LLDPE geomembrane creates a continuous waterproof barrier. It prevents collected rainwater from seeping into the surrounding soil, reducing water loss and improving the efficiency of water storage. This is particularly important in Ethiopia, where seasonal rainfall makes water conservation essential for agricultural production.

2. Improve Agricultural Water Storage Efficiency

Many farms in Ethiopia collect rainwater during the rainy season and store it for use during drier months. However, unlined ponds built on permeable soil may gradually lose water through the bottom and sidewalls. Using a 0.5mm LLDPE geomembrane liner for agricultural water storage in Ethiopia retains more collected water for crop irrigation, livestock watering, and other farm activities.

3. Adapt to Different Pond Shapes and Slopes

Compared with HDPE geomembrane, LLDPE offers greater flexibility and elongation. It can fit more easily around curved pond bottoms, sloping surfaces, and properly prepared uneven subgrades. This makes it a practical option for agricultural reservoirs with different shapes and dimensions. Proper panel arrangement and seam welding are essential to maintaining a continuous waterproof lining.

4. Provide Protection for Outdoor Water Storage Applications

LLDPE geomembrane manufactured with suitable UV stabilizers and antioxidants can be used in outdoor rainwater storage ponds exposed to sunlight. This is particularly relevant to rainwater harvesting pond liners in Ethiopia, where agricultural reservoirs may remain exposed to direct sunlight for extended periods.

5. Support Long-Term Pond Operation and Maintenance

LLDPE geomembrane reduces seepage-related maintenance problems. Before installation, the pond foundation should be cleared of sharp stones, roots, and other objects that could damage the liner. Where necessary, a nonwoven geotextile protection layer can be installed underneath.

LLDPE Geomembrane

A Real Case

In Ethiopia, uneven rainfall distribution and prolonged dry seasons create challenges for agricultural production and water availability. Rainwater harvesting ponds provide a practical way to collect and store seasonal rainfall for irrigation during dry periods. However, traditional earthen ponds suffer from water seepage, uneven settlement and surface erosion, resulting in water loss and higher maintenance costs.

To address these challenges, 0.5mm LLDPE geomembrane was selected as the impermeable lining for the rainwater harvesting pond. Its flexibility and elongation properties accommodate minor movements of the pond subgrade and slopes while maintaining a continuous seepage barrier. Six months after installation, the LLDPE geomembrane provided an effective seepage barrier for the rainwater harvesting pond, reducing water loss through the pond bottom and side slopes. LLDPE geomembrane lining can also improve water storage efficiency, retain harvested rainwater for longer periods and reduce the need for frequent water replenishment and pond maintenance. For agricultural irrigation, rural rainwater harvesting and other projects in Ethiopia, 0.5mm LLDPE geomembrane offers a practical and flexible lining solution.

FAQ

Q1: What guarantees can we provide?

Product Specification: GB/T17643-2011.

Certification: GB/T19001-2016/ISO9001:2015/ASTM GM17.

Competitive Prices: Factory-Direct Prices, No Middlemen.

Q2: What is the difference between LLDPE and HDPE geomembrane?

The main difference is flexibility. LLDPE is generally more flexible and has higher elongation, while HDPE is stiffer and generally offers stronger chemical resistance. The selection depends on the project's conditions and requirements.

Q3: Can LLDPE geomembrane withstand Ethiopian sunlight?

LLDPE geomembrane formulated with appropriate carbon black, UV stabilizers, and antioxidants can be used in exposed applications. Buyers should request UV resistance and aging test reports before purchasing.

0.5mm LLDPE Geomembrane Liner for Rainwater Harvesting Pond in Ethiopia

Main Functions

A Real Case

FAQ

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