PE Pond Liner is a new polymer material, which is made of polyethylene. It is the most used plastic drainage film at present and can be used in many industries. Because of its lightweight, low cost, and convenient installation, it has been used in fishery and agriculture. PE Pond Liner is used for seepage prevention and leakage prevention of fish ponds; It is also used for seepage prevention, waterproofing, reinforcement, and drainage of reservoirs and small dams in aquaculture and water conservancy projects. In the aquaculture industry, PE Pond Liners are used in fish ponds, ponds, fish pond partitions, earth dams, etc.
“Fish pond liner” is to lay PE film on the bottom of the pond, which can prevent the death of fish from hypoxia and suffocation, and avoid scratches caused by the movement of fish. The “fish pond liner” can prevent fish from suffocating and dying under high temperatures, so that the fish will not be killed due to overhunting. Thus, the selection of appropriate PE Pond Liner materials as pond substrates is an important link to achieving aquaculture production increase and green environmental protection. “Pond liner” is very popular in the international market. It is used in Southeast Asia, South Korea, Japan, and other places in Asia.
Application background of PE Pond Liner for Fish Farm Project in Malaysia
There are many kinds of fish in Malaysia, including Salmon Neville, Salmon doc, Tripicus landside, Cerpatana lanthanum, etc. Besides, freshwater fish are also cultivated. Tilapia, grouper, and tuna are very common species in fishermen’s breeding.
Aquaculture is one of the main links to natural food production. Once the quality of aquatic products has problems or unsafe events, the economic losses caused by aquaculture are huge and cannot be remedied. In the field of aquaculture, and fish farming, fish grow faster and consume a lot of water resources for food production, transportation, and other living expenses, leading to the deterioration of water quality, and a large number of aquatic organisms will die or produce diseases and pests. Especially with the rising incidence rate of fish diseases, the quality of the products used in the ponds is related to the sustainable development of the fish pond economy and fishery resources. Thus, the PE pond liner has been introduced into fishery and aquaculture in various countries as an excellent 3-pond liner.
What are the advantages of using PE Pond Liner as a pond liner?
1. Disease Prevention
The worse the water environment, the greater the risk of fish disease. PE pond liner can form a good layer of filtration and adsorption function in water, prevent fish from infecting diseases due to direct contact with other aquatic organisms, timely remove viruses and bacteria, avoid the breeding of harmful viruses and bacteria, and provide a safe and efficient healthy environment for fish. Corresponding treatment will be carried out according to the actual breeding varieties and water body characteristics to reduce the occurrence of diseases, reduce the number of drugs used, and avoid increasing drug risks by using large amounts of drugs, which can reduce or drop the adverse effects of drugs on water bodies and maintain the ecological balance of water bodies.
2. Inhibit fish stress
There are some chemicals in animals, such as stress hormones and growth-promoting drugs. When the external environment changes, fish will have a stress response. The fish in the fish pond will be stressed and die; The aquaculture water will be deteriorated after being polluted. But, PE pond liners can prevent fish diseases from recurring by improving water quality regulation, and inhibiting the propagation of harmful microorganisms such as bacteria and viruses. It is reported that the use of PE pond liners as a pond substrate during the pandemic season will help reduce the accumulation of water pollutants.
3. Moisture and heat insulation
PE Pond Liner can prevent water freezing, fish injury, and frostbite, use high-quality seedlings and ensure stable water temperature, which is helpful to improve the cold resistance and heat resistance of fish. Thus, in the long-term low-temperature season (i.e. winter) or when the water temperature is too low (i.e. summer), farmers can use the geotextile moisture-proof and heat insulation technology for antifreeze feeding. PE pond liner has strong tensile strength, high toughness, and high impermeability. As PE pond liner has good ductility and wears resistance, it can be well adapted to the situation in fish ponds. The moisture-proof and heat insulation technology include two aspects: First, moisture-proof materials made of corrosion-resistant materials are selected as the water surface insulation layer; Second, plastic film is selected as the moisture-proof material between water bodies as the thermal insulation layer or thermal insulation layer on the surface of water bodies.
4. Escape prevention
When the water level of the pond rises, the water level will rise, especially during the rainy season. The bottom of the pond is easy to form a large number of bogs, and the bottom is a large number of plankton and various aquatic plants deposited in the water. These sediments and algae have a certain impact on fish, making aquatic animals “escape”, especially when plastic hoses are used for transportation in muddy ponds. Plastic hoses are not only easy to block and fall off but also corrosive in water and easy to damage under hot and humid conditions. Besides, the plastic hose is corrosive to a certain extent, and will affect the feeding and digestion of fish, leading to disease and death, and will make the water quality deterioration unavoidable.
What is PE Pond Liner?
As a new type of building material, PE Pond Liner has been applied in many industries, such as fishery, agriculture, mining, aquaculture, water conservancy, and other projects. Characteristics of PE pond liner.
These are the characteristics of the PE pond liner:
1. Anti-aging
2. Freeze-thaw resistance
3. Wide application range
4. Corrosion resistance, acid and alkali resistance
5. Wide application scope
6. Fast laying speed
In general, PE pond liner has excellent low-temperature resistance, good chemical stability, and resistance to most acids and alkalis. Compared with ordinary building materials, high-performance PE pond liner has higher strength, impermeability, aging resistance, abrasion resistance, fatigue resistance, or freeze-thaw resistance. Its special formula can adapt to different use conditions, and it is an ideal impervious material substrate for fish ponds. It has good anti-seepage performance, good acid, and alkali resistance and salt spray resistance, high strength, a large elongation rate more than twice that of traditional plastic film materials, and good aging resistance, providing ideal protection equipment for aquaculture in fish ponds; Good chemical resistance makes the plastic surface have excellent corrosion resistance, which can be used in saline-alkali solution; Strong wear resistance; High tensile strength and elastic modulus, long service life.
Introduction to various PE raw materials
PE: The general name of polyethylene (including HDPE, LLDPE, and LDPE), which is a polymer polymerized from ethylene monomer. Odorless, non-toxic, and feel like wax. It is insoluble in general solvents at room temperature, with small water absorption and excellent electrical insulation.
HDPE: also known as high-density polyethylene, is a high-crystallinity, non-polar thermoplastic resin. Compared with LDPE, it has a large density, high strength, and good hardness. The original appearance is milky white, and it is translucent to a certain extent in the thin section.
LLDPE: linear low-density polyethylene, which is different from ordinary low-density polyethylene in structure, because linear low-density polyethylene has only branch chains, but no long branch chains and no cross-linking. The linearity of LLDPE depends on the production process.
LDPE: also known as low-density polyethylene, tasteless, odorless, non-toxic, soft, lusterless, milky white wax particles on the surface, but with general transparency. Insoluble in water, soluble in hydrocarbons, toluene, etc.
As a pond liner, LDPE pond liner is not as used as HDPE pond liner and LLDPE pond liner.
How to use PE pond liner as a pond substrate in fish farm projects?
“Pond liner” is to lay PE film on the bottom of the pond, which can prevent the death of fish due to hypoxia and suffocation, and avoid scratches caused by the movement of fish. The “fish pond liner” can avoid the suffocation of fish under high temperatures, so that the fish will not die due to excessive predation. Thus, a pond liner is an important factor in increasing aquaculture production and environmental protection. “Pond liner” is rarely used in the domestic market, in Southeast Asia, South Korea, Japan, and other places. Since 2003, China National Building Materials Testing Center has investigated and analyzed the development status of “Tangkou Liner” in the domestic market. The development trend of “Tangkou Liner” is analyzed and predicted. It is proposed that the market of “Tangkou Liner” will develop towards multi-functional composite products such as high-density polyethylene (LLDPE) materials and linear low-density polyethylene (LLDPE) materials. The development of the “Tangkou Liner” project is predicted and suggested.
Omit freshwater fish farming, if the pond water is polluted, it is easy to cause fish diseases; It will lead to fish corruption, even death, and affect product quality, which will not only affect fish breeding and production, but also affect the output and sales income of aquatic products, increase breeding costs, and affect the sustainable development of aquaculture. PE pond liner is the most suitable material for pond substrate and fish pond partition. The partition wall of a fish pond is usually made of polyethylene pond liner. At the same time, drainage ditches, gutters, and sumps should be set around the partition wall of the fish pond to reduce the direct contact between water and soil. The drainage ditch (or sump) and sump bottom will be set at the bottom of the partition wall to prevent sewage from flowing into the aquaculture pond and causing fish diseases or affecting its growth and reproduction. Between the pond and the fish pond, the partition anti-seepage channel and the anti-seepage channel of the sump will be set to prevent the death of fish due to lack of oxygen, so about ensure the safety of water quality.
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