Agricultural Pond Liner for Organic Fish Ponds in Bangladesh

Agricultural pond liner, also know as HDPE geomembrane pond liner, is a water-resistant and flexible membrane liner used for holding the liquids.  BPM agricultural pond liner is both tough and flexible, with high resistance to chemicals and corrosion, it can stand up to a longer period of time and with best quality made from multi-layered cross-laminated film our extra large pond liner are highly effective and affordable.  HDPE geomembrane pond liner can be used for agricultural farm ponds, garden ponds, rainwater harvesting and conservatories, fish farming, and other aquaculture farms like pearl farming.

1 Case Study of Agricultural Pond Liner Bangladesh

• Location: Bangladesh
• Product: Agricultural pond liner
• Purpose: Organic Farming Fish Ponds

2 Why Choose Agricultural Pond Liner Bangladesh for Farming Fish Ponds

BPM Bangladesh customer got an organic agriculture project to achieve a goal of Zero Carbon Emissions. At the same time, through two months of communication, we learned that this was a public welfare project involving the ethics of the local government. The Bangladeshi customer wanted to purchase agricultural pond liner as the waterproof and anti seepage lining material. The HDPE geomembrane produced by BPM is made of high-density polyethylene, which has no pollution to the environment and has a service life of 10 to 25 years, which is just in line with their ten-year goal of zero emissions. Not only that, through local field inspections, it was found that most of the agricultural operation methods are still traditional, and there are 17 large-scale polluting coal-fired power plants, which have a great impact on the environment.

3 How To Use Agricultural Pond Liner for Organic Farming Fish Ponds in Bangladesh

3.1 Why Chose 0.75mm HDPE Geomembrane Pond Liner

For the fish ponds in each project, the most reasonable depth test was made based on the penetration test results of the cooperative customers and the results of on-site surveys. Tests show that the depth of the fish pond should be controlled between 1.5m and 2.0m, and the size should be around 2500 square meters, in order to achieve the best input-output ratio. Under the suggestion of BPM engineers, the project partner customer chose 0.75mm HDPE Geomembrane pond liner with a thickness of 0.75mm for fish pond in the organic agriculture project.

BPM 0.75mm HDPE geomembrane is added with anti-UV, anti-aging additives and other additives in the production process, and the service life is 10 to 25 years, which is compatible with the production cycle of this organic agriculture. In addition, the BPM HDPE geomembrane has good puncture resistance, which can effectively prevent the damage of 0.75mm HDPE Geomembrane caused by small rocks and prevent the penetration of water. Wiuth experinces of 17 fish pond liner projects, the project is the starting point, and the technicians and environmental monitoring personnel have conducted experiments and computer calculations and found that about 40 such organic agricultural systems are needed.

3.2 Installation process of Agricultural Pond Liner for Organic Farming Fish Ponds

• Extend from the bottom to a high place, don’t pull it too tightly, leave a margin of 1.50% for local sinking and stretching. According to the actual situation of the fish pond, set the slope from top to bottom;
• The longitudinal seams of two adjacent frames should not be on the same horizontal line, and should be staggered by more than 1m;
• The longitudinal joint should be more than 1.50M away from the dam foot and the bent foot, and set on the plane;
• The slope is first, then the bottom of the field;
• When laying slopes, the direction of film laying should be basically parallel to the maximum slope line.

3.3 Construction Temperature Requirements

• The temperature should generally be above five degrees Celsius. The geomembrane should be tense at low temperatures, and the geomembrane should be relaxed at high temperatures.
• The wind is below level 4.
• When the temperature is too low, the construction should not be generally carried out in strong winds or rain or snow above level 4.
• When the wind affects the construction of geomembrane in strong windy weather, the HDPE geomembrane to be welded should be pressed firmly with sandbags.

4 Benefits of Agricultural HDPE Pond Liner Bangladesh

(1) BPM geomembrane agricultural pond liner is made of high-quality polyethylene virgin resin, added with carbon black, anti-aging agent, anti-ultraviolet absorber, stabilizer and other auxiliary materials formula, using world-class fully automated geomembrane production equipment, through three-layer co-extrusion blowing It is produced by plastic process or calendering process technology, which is an effective waterproof barrier type engineering material.

(2) The smooth surface of the fish pond membrane can effectively prevent the fish from escaping during the rainy season. Its main function is to avoid direct contact between the fish and the soil and avoid water pollution. The anti-seepage film for fish ponds can not only prevent waste from accumulating in the soil, but also prevent harmful chemicals such as ammonia, hydrogen sulfide, acidic substances, iron and other potentially harmful compounds from entering the pond, which can reduce the risk of disease and effectively protect and Promote the growth of fish.

(3) The organic agriculture systems to replace coal-fired power plants is used to reduce the emission of toxic gases such as carbon dioxide and carbon monoxide, and build a harmonious and beautiful home for mankind.

(4) Water quality stability. The use of  0.75mm HDPE geomembrane can better maintain the balance of water quality, reduce changes in water conditions, and reduce the cost and time of water quality control. Reduce maintenance costs, use 0.75mm HDPE geomembrane, can inhibit the growth of algae in the water, easy to clean. Since the geomembrane itself contains anti-ultraviolet additives, the geomembrane is not afraid of the sun and is easy to maintain.

(5) 0.75mm HDPE Geomembrane has a small permeability coefficient, large elongation, good environmental protection benefits (compared to concrete and clay materials anti-seepage), light and soft, easy to construct, strong regional adaptability, high factory production quality assurance rate, and more convenient operation and maintenance In the field of anti-seepage, HDPE geomembrane has a wide range of applications ranging from roof waterproofing to dam anti-seepage. And in recent years, with the development of geomembrane material science and the improvement of geomembrane performance, the application of geomembrane has become more extensive and the scale of use has become larger and larger. In some large-scale water conservancy projects, such as dams, reservoirs, and dikes, the application prospect of geomembrane is very good. Geomembrane is more and more favored by engineering personnel due to its advantages of easy construction, short construction period, and low cost.

5 Summary

HDPE geomembrane pond liner is the best choice for organic agricultural fish ponds. It has a lower cost than other materials and a long service life. The agricultural pond liner can effectively prevent the deterioration of water bodies and the generation of harmful water quality, whether from the perspective of economic benefits or social environmental and ecological benefits. It can create effects that other materials do not have.

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