What is a geomembrane tank?

What is a geomembrane tank?

Geomembranes are materials commonly used in fields such as civil engineering, environmental engineering, and water resources management to control soil erosion, prevent infiltration, filter water, or for other purposes.

Geomembrane tank refers to the use of geomembrane as a water container for fish farming. Such a system is typically a small, artificially constructed body of water in which geomembrane tanks are used to contain and maintain the body of water.

Here is some basic information about what raising fish in geomembrane tanks may involve:

Water container: Geomembrane tanks are used as containers for water bodies and can be some kind of circular, rectangular or other shaped structure. This type of tank usually prevents water penetration and maintains the stability of the water body.

Geomembrane characteristics: Geomembrane is usually a material with good anti-permeability and corrosion resistance, which is crucial for maintaining water quality.

Water management: In geomembrane tanks, proper water management is required, including water quality monitoring, water temperature control, feed placement, drainage system, etc. This helps keep the fish healthy and promotes a good growing environment.

Fish farming: Fish farming in geomembrane tanks may include a variety of fish species, with the choice depending on the farmer’s needs and environmental conditions. Common farmed fish may include carp, trout, bass, etc.

Environmental control: In order to ensure the growth and health of fish, it may be necessary to consider the control of water temperature, water quality, oxygen content and other factors. This can be achieved through heating equipment, oxygen supply systems, filtration systems, etc.

Regular maintenance: The geomembrane tank fish culture system requires regular cleaning and maintenance to ensure the quality of the water and the living environment of the fish.

This type of fish farming system may be used in agricultural, home, or educational projects because it is usually relatively small, easy to manage, and can be conducted in a limited space.

The successful operation of a fish farming system requires careful planning, water management and fish health monitoring.


What is the service life of geomembrane?

The service life of geomembrane is affected by many factors, including geomembrane material, production process, installation method, usage environment, soil quality, underground water table, chemical environment, ultraviolet exposure and other external pressures. Here are some general guidelines on the service life of common geomembrane materials:

High Density Polyethylene (HDPE) Geomembrane: Under proper installation and use conditions, the expected service life of an HDPE geomembrane is typically between 20 and 100 years, depending on its thickness and usage environment.

Linear low-density polyethylene (LLDPE) geomembrane: LLDPE geomembrane is relatively soft and can better adapt to soil changes. Its expected service life is usually between 20 and 50 years, but is also affected by the use environment and geomembrane thickness.

Polyvinyl Chloride (PVC) Geomembrane: The service life of a PVC geomembrane is typically between 10 and 20 years, but may be shorter under certain conditions. Its durability may be affected by certain chemicals.

EPDM (Ethylene Propylene Rubber) Geomembrane: This is a type of geomembrane commonly used in artificial lakes and reservoirs. Its expected service life can reach 20 to 40 years.

What should we pay attention to when raising fish with geomembrane?

Geomembrane fish farming systems can be an efficient way to farm fish, but several factors require special attention to ensure fish health and growth. Here are some key factors to pay attention to in geomembrane fish farming:

Water Quality Management: Maintaining proper water quality is critical to fish health. Regularly test water parameters such as temperature, pH, dissolved oxygen, ammonia nitrogen, nitrite and nitrate to ensure they are within the appropriate range.

Feeding and management: Provide appropriate feed to ensure they receive adequate nutrition according to the species and age group of the fish. Overfeeding can lead to water quality problems.

Water temperature control: Fish are very sensitive to water temperature. Maintain appropriate water temperatures according to the needs of the fish species being raised. This may require heating equipment or other means of temperature control.

Oxygen supply: Make sure there is enough oxygen in the water body. Oxygen supply systems can help increase oxygen levels in the water, especially in high-density farming.

Disease and Vaccine Control: Monitor fish health so that any potential diseases can be detected and dealt with early. When necessary, consider using vaccines to prevent disease.

Water Circulation and Filtration: Ensure proper water circulation and filtration systems to remove waste and maintain water cleanliness. This can include mechanical, biological and chemical filtration.

Light management: Light can affect the growth of algae in the water, which may affect the water quality and health of fish. Proper lighting control can reduce this effect.

Prevent escape and predation: Ensure that the structures and equipment around the geomembrane tank can effectively prevent the escape of fish and the invasion of external predators.

Regular Cleaning and Maintenance: Clean geomembranes, filtration systems and equipment regularly to prevent clogging and maintain their proper operation.

Environmental monitoring: Monitor the environment around the geomembrane tank to ensure there are no potential sources of contamination or other factors that could affect the health of the fish.


  • Tinhy

    Founded in 2002, Tinhy's team focuses on the manufacturing, marketing, installation, application and research and development of geosynthetic materials.

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