Geomembrane Liners for Aquaculture Industry, Such as Fish Pond and Shrimp Pond

What is HDPE Geomembrane Liner? What are the applications and advantages of HDPE Geomembrane? Why it can be used as a shrimp/fish pond liner? How to choose suitable items such as shrimp/fish pond liner? And how to find a reliable supplier? The following article is a detailed introduction for your inference to choosing geomembrane liners.

What is HDPE Geomembrane?

HDPE geomembrane is a new type of geotechnical product, which is very stable and will not pollute the environment, so it is used in many industrial fields. HDPE geomembrane (full name is high-density polyethylene geomembrane) is made of high-quality polyethylene raw materials. The raw material of high-quality polyethylene is 100% primary resin.

HDPE geomembrane selects the highest quality resin. Besides, a certain proportion of other substances are added to the production of HDPE geomembrane. The addition of carbon black and ultraviolet absorbers makes the geomembrane have good UV resistance. With the addition of anti-aging agents, antioxidants, stabilizers, and other substances, the product will not age or exude toxic substances.

Thus, it has great characteristics and service life in practical use.

There are two main production processes of geomembrane, calendering and film blowing. The geomembrane of the two processes has little difference, and both have good light aging resistance and stress wear resistance.

geomembrane process
HDPE Geomembrane Process

The Applications of HDPE Geomembrane Liners

As mentioned above, HDPE geomembrane lining is made of high-quality primary resin (100% raw material) and a variety of materials with enhanced properties, with anti-oxidation, anti-aging, and anti-ultraviolet properties.

Here are several application scopes of geomembrane liners:

  1. Sanitation Projects: Domestic landfill, sewage treatment, poisonous & harmful substance treatment, dangerous cargo storage.
  2. Construction Projects: Underground project of subway and building, roof reservoir, roof garden, sewage pipeline, etc.
  3. HDPE geomembrane liner is the best choice for fish ponds or shrimp pond liners. Also, it can also be used for sea cucumber ring slope protection, and so on.

Why Geomembrane Liner Can Be Used as Shrimp/Fish Pond Liner

HDPE Geomembrane Liner is a new type of environmental protection material.HDPE geomembrane liners contain anti-ultraviolet substances and so can resist the deterioration of ultraviolet rays and can be used for many years.HDPE geomembrane Liners are flexible, rolled, and fused or bonded together during installation. That’s why we can say that HDPE geomembrane liner is the best choice to be used in aquacultures, such as fish pond liner or shrimp pond liner.

According to the experimental data and practical agricultural application, an HDPE geomembrane liner is the best choice for fish ponds or shrimp pond liners.  Safe and reliable materials are very important for the growth and health of fish and shrimp.HDPE geomembrane liners can make the storage, circulation, and management of shrimp ponds and fish farm ponds easier to do. Using HDPE geomembrane liners can save fishermen’s costs and time and also improve production efficiency. Thus, we recommend HDPE geomembrane liner as the best pond liner to be the realistic foundation of shrimp farm ponds or fish farm ponds.

shrimp pond liner
Shrimp Pond Liner

The Suitable Geomembrane Items as Shrimp/Fish Pond Liner

The thickness of geomembrane liners can be produced from 0.3mm-3mm. But in realistic projects, the thickness of 0.5mm-2mm geomembrane liners is more popular. For fish pond liners and shrimp liners,0.5mm-1mm geomembrane liners are the most popular. By the way, The recommended thickness for a shrimp pond liner is at least 0.75 mm. You can choose 0.5mm,0.75mm, or 1mm geomembrane liners according to whether it’s a fish pond liner or shrimp pond liner.

Geomembrane liners are packed and delivered by rolls, so you also need to choose the width and roll length of the geomembrane liners. Usually, the width of geomembrane liners can be 3m-8m. The width of 5.8m is most popular because it’s exactly the width of 20 feet container. As for the roll length, geomembrane liners can be cut into rolls of 50 meters to hundreds of meters at most. The roll length of 100m,150m, and 200m are all popular. You can choose the length you want.

Good suppliers of HDPE geomembrane liners can guarantee their product to be used under normal conditions for five to 10 years. So remember to check the quality certifications and after-services of the products so you can avoid buying recycled material geomembrane liners.

How to Tell Good and Bad Quality Geomembrane Liners?

High-quality geomembrane liners only use 100% raw material. Yet, some dishonest businesses may use various tricks to reduce costs and deceive customers to make greater profits.

The first situation you may encounter is to sell second-hand goods at the best quality and price. In other words, the geomembrane liner is manufactured with unknown recycled resin instead of 100% of the original raw materials. The raw materials of these recycled resins are complex, including medical waste, oil drums, etc. These geomembrane liners made of recycled resin may contain impurities such as viruses, heavy metals, and dangerous chemicals. Besides, the quality of recycled resin geomembrane liners is unstable. If the recycled geomembrane liners are used for anti-seepage projects or aquaculture industry, the result is that pollutants will precipitate the excavated geomembrane, which is harmful to soil, groundwater, and the human body.

The second common trick you may encounter is that the thickness of geomembrane liners is not up to standard. To save costs and make more money, some suppliers will reduce the thickness of customized geomembrane or reduce the addition of raw materials. This will affect the thickness and quality of the finished geomembrane, resulting in the quality or weight of the geomembrane liner not reaching the standard it should meet.

The third trick you may encounter is that the specification of geomembrane liners product does not meet the standard, especially in length. For example, the length of the marked geomembrane liner roll is about 100 meters, but the actual length may be only 90 meters. Generally speaking, it is difficult for customers to find a suitable place to measure the length. Thus, some suppliers will use this to save costs. In this way, the profits of customers will be reduced. For example, the 5.8m*100m geomembrane roll can be produced into 5.8m*90m or 5.8m*95m, which can also save 5-10% of the cost.

The above three items are common tricks of some dishonest careful and don’t be cheated by some unscrupulous merchants.

Otherwise, if you care about the data and have the conditions and devices to test the product quality, you can see high-quality geomembrane liners made of raw material have great test performance. Good geomembrane liners can meet ASTM GIR Standard as well as CE ISO certifications.

Some Notes in Construction of Geomembrane Liners

As mentioned before, the recommended thickness of geomembrane liners is at least 0.75 mm.

The geomembrane construction process is as follows:

Construction preparation site treatment→laying→welding→fixation→ protective measures.

In the real construction of shrimp pond liner or fish pond liner, we should use plastic to lay the pond bottom and embankment to prevent contact with acidic sulfate soil to avoid low pH in the pond bottom and water, which may cause problems in shrimp ponds or fish ponds, especially in the rainy season.

By using geomembrane as fish pond liner or shrimp pond liner, pond water quality is easier to manage because contact with bottom and embankment soil will not have a negative impact on pond water quality. The geomembrane liners can prevent soil-water interaction, prevent soil acidity problems, prevent salinization in adjacent areas, and control the seepage of fish/shrimp ponds in areas with high groundwater levels.

Problems needing attention:

1. The construction of geomembrane liners can be carried out in a humid environment. But the too humid environment must be avoided, and direct immersion in water must be avoided.

2. If there is moisture on the ground, it must be laid after drainage measures are taken to prevent the geomembrane liners from being welded after water sticks;

3. Do not drag the geomembrane during transportation to avoid stabbing by sharp objects.

4. During loading and unloading, it is prohibited to throw, drag, roll and pry and damage according to the principle of being handled.

5. The product must be reserved in a cool and arid place. Exposure to the sun and rain are prohibited.

Temperature requirements for Geomembrane Construction

1. The temperature ought to be above five degrees Celsius.

2. The wind force should be under level 4.

3. In tough weather days, like windy days, the workers should take measures to ensure that the HDPE geomembrane to be welded can be pressed with heavy things or devices.

The Summary of Geomembrane Liners in Aquaculture

In brief, geomembrane liners have these advantages:

–Assist in maintaining water quality.

–Helps control soil erosion.

–Lower cost of maintenance.

–Lower disease risk.

–Prevent the loss of dissolved oxygen.

–Improving the working environment.

In recent years, the aquaculture market, especially the shrimp market is very extensive and intensive. The use of HDPE geomembrane liners to lay fish pond liners, shrimp pond liners, and water tanks has played a key role in improving aquaculture productivity, especially in Asia, and has become the best practice in the industry. Geomembrane liner is a cost-effective solution with better performance than soil, clay, or concrete-lined fish/shrimp ponds. All the benefits of installing geomembrane liners will improve agricultural output, agricultural quality, and the profitability of the project.

So in conclusion, we can say HDPE geomembrane liner is the best choice to build fish ponds or shrimp ponds in aquaculture.

How to Find a Reliable supplier? Recommend ShandongDajin Company

It’s not hard to find a professional team to buy HDPE geomembrane liners. Since there are a lot of factories in China, their geomembrane liner products have been exported all over the world, used as fish pond liner and shrimp pond liner. Shandong Dajin Company is one of the best manufacturers in them.

Shandong Dajin company is located in Jinan, Shandong Province, China, covering an area of 310000 square meters; At the same time, it has 12 advanced production lines. Shandong Dajin company has always been committed to the production, research, and development of innovative geosynthetics anti-seepage products.

For the past 20 years, Shandong Dajin serves clients from more than 60 countries and thus won wide praise in the international market for its excellent quality and perfect services.

The strength, flexibility, durability, resistance to UV radiation and corrosive environments, and antimicrobial properties of Shandong Dajin geosynthetics fully address many of the challenges facing the fishing and aquaculture industries.

Earth Shield geosynthetic products are used in aquaculture around the world to help increase revenue, reduce risk, and control operating costs. Earth Shield supplies more than 30 million square meters of geomembrane to aquaculture farms worldwide. Has extensive experience in aquaculture. As aquaculture becomes increasingly important globally as a means of improving food security, Earth Shield geosynthetics offers an effective solution to accelerate success.

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