What to Pay Attention to When Building a Recirculating Aquaculture System

2023-07-11 10:52

The following key aspects need to be paid attention to when making a recirculating aquaculture system:

1. System Planning and Design

First of all, we need to clarify the breeding goals and species. Different aquatic organisms have different requirements for water quality, temperature and dissolved oxygen. The size, number and layout of the breeding ponds should be reasonably designed according to the breeding scale to ensure smooth water flow without dead ends. At the same time, we need to accurately calculate the processing capacity of the entire system, including the selection of filtration, oxygenation, disinfection and other equipment to meet the breeding needs.

2. Equipment selection and installation

Filtration equipment: Choose equipment with appropriate filtration accuracy, such as microfiltration machines, biofilters, etc., to effectively remove solid particles, ammonia nitrogen and other harmful substances in the water. Ensure that the filter mesh has an appropriate aperture and the quality of the biofilter material is good to provide a good growth environment for beneficial microorganisms.
Oxygenation equipment: Select efficient oxygenation equipment, such as microporous aerators, according to the volume of aquaculture water and the oxygen demand of organisms. Ensure that the dissolved oxygen in the water is sufficient and evenly distributed to meet the breathing needs of aquatic organisms.
Disinfection equipment: You can choose ultraviolet disinfection equipment or ozone generator, etc., and pay attention to controlling the disinfection dosage to avoid harming the cultured organisms. At the same time, the equipment should be installed in a standardized manner, the pipes should be connected tightly, the water flow resistance should be reduced, and the stable operation of the system should be ensured.

3. Water Quality Management

Water quality monitoring: Regularly monitor important indicators such as water temperature, pH value, dissolved oxygen, ammonia nitrogen, nitrite, etc. Determine a reasonable range of water quality standards based on the species and stages of aquaculture.
Water quality regulation: When water quality indicators are abnormal, timely measures should be taken to adjust them. For example, by adding chemical reagents to adjust the pH value, strengthening filtration and biological treatment to reduce ammonia nitrogen content, etc. At the same time, the breeding density and feeding amount should be controlled to prevent water quality from deteriorating.

IV. Operation management and maintenance

Personnel training: Operators should undergo professional training, be familiar with the working principles and operation methods of the system, and be able to correctly handle equipment failures and water quality problems.
Daily maintenance: Regularly check the equipment operation status, clean the filtration equipment, maintain the oxygenation equipment and disinfection equipment, etc. Replace damaged parts in time to ensure long-term stable operation of the equipment.
Emergency response: Develop emergency plans to deal with emergencies such as power outages, equipment failures, and sudden changes in water quality, and take effective emergency measures to ensure the safety of farmed organisms.

In short, building a recirculating aquaculture system requires comprehensive consideration of all aspects, careful planning and design, reasonable selection of equipment, strict water quality management, and enhanced operation and maintenance to ensure efficient and stable operation of the system and achieve sustainable aquaculture.