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Aquatic life support systems for research facilities

Aquatic life support system

The primary purpose of the aquatic life support system (LSS) is to keep aquatic animal habitats clean and healthy.

These systems are also called ALSS (Aquarium Life Support Systems) in the case of public aquariums and RAS (Recirculating Aquaculture Systems) in the case of land-based aquaculture.

Not only is animal welfare key, but so is the success of your research protocols. We can maintain the ideal water quality, chemistry and temperature thanks to state-of-the-art automation.

At Luxaqua, we design and manufacture custom fish tank rack systems with integrated life support system automation. We pride ourselves on adapting to 100% of experimentation protocols requirements. 

Life Support System flowmeter
aquatic life support system diagram

Here are the key LSS functions to maintaining the optimum water quality for each of the aquatic animals at your research facility:

  1. Filtration with mechanical & biological filters
  2. Dilution & salinity control with pumps, automatic valves & reverse osmosis
  3. Temperature control with heaters & chillers
  4. Protein separation with skimmers, auto wash & foam level control
  5. Sterilisation with UV lighting
01  

Filtration

Filters used in aquatic life support systems can be mechanical or biological. We always use a combination of both to ensure the best water quality. 

The mechanical filter is placed ahead of the biological filter: Removing the largest insoluble particles will increase the efficiency of biological filters and protein skimmers by avoiding clogging them.

Mechanical Filters

Mechanical filters are usually the first level of filtration since they will separate any solid organic residue or pollutant in suspension. Mechanical filters often use sponges, pads or foam blocks. They come in different levels of filtration, from coarser to finer, depending on the size of the particles you need to catch.

Biological Filters

The role of the biological filters is the most critical of the aquatic life support system. The water quality relies on them to remove toxic dissolved chemicals. This filter uses various materials, such as ceramics or food-grade plastics, like in the case of bio balls. These porous materials contain bacteria (nitrifying bacteria or anaerobic bacteria, for instance) able to digest the unwanted chemicals from the fish tank water.

Aquatic life support system filters
02 

Dilution & salinity control

Based on the information given by the sensors, actuators such as valves and pumps are used to dilute the water in the fish tanks. 

Depending on the fish tank system, pumps can bring fresh water from the tap, osmosis water, natural seawater and artificial seawater to rectify the water quality and salinity.

Reverse osmosis water purification system at home. Installed water purification filters
Sump

The water from the fish tanks is first collected in a sump before being sent to the filters, heaters or chillers, protein skimmers and UV sterilisers. The sump is a reservoir with a water level sensor that activates a pump and an automatic valve to bring clean water. This system also has the advantage of automatically compensating for water evaporation.

Reverse Osmosis

Reverse osmosis is usually part of the dilution system to bring purified fresh water. The water is pushed at high pressure through a non-porous membrane (note some membranes use nanofiltration). This system can be used for purification or desalinisation. We usually use the latter when there is access to natural seawater.

03 

Temperature control

Aquatic species all have an ideal temperature in which they thrive. Some are more sensitive than others to temperature variations. 

Controlling the water temperature can be done with heaters and/or chillers.

Plate heat exchanger
Heat exchangers

In any case, these systems work based on heat exchangers. An excellent automation system must achieve the lowest temperature variation possible. Our aquatic life support systems usually include titanium plate heat exchangers, which perform best thanks to their high performance and reliability.

04 

Protein separation

Protein skimmers, also called foam fractionators, complete the action of biological filters by removing dissolved organic matter. 

A high-pressure air intake produces tiny bubbles thanks to an air pump and a venturi valve.

aquatic life support system protein skimmer
Protein Skimmers

Ascending towards the top of the skimmer, the bubbles form a foam able to bring to the surface the unwanted compounds (amino acids, fatty acids, carbohydrates, enzymes, for instance). The foam is then separated mechanically and pushed away in a collection reservoir connected to a drain pipe.

05 

Sterilisation

The final level of water quality control is removing bacteria and parasites. This is better achieved by flashing the water with ultraviolet lighting.

Aquatic life support system fish tank rack system
UV light

UV light can stop bacteria from multiplying thanks to its mutation effect. This way, you can keep your aquatic animals away from disease spreading.

The different components of the aquatic life support system work hand in hand with our fish tank monitoring software. Its added benefits are to record all the potential variations in the water chemistry and send alerts if something out of scope happens.

Our user-friendly interface makes it easy for your teams to use, so you can worry less and focus more on your research. We care about quality and details; we won’t leave before your installation works as planned, and your team is trained to use it. 

LXA_datatech fish tank monitoring on all devices

Benefits of asking Luxaqua to design and install an aquatic life support system at your research facility:

  • Full custom design to meet 100% of research protocols requirements
  • Energy efficient system to decrease running costs
  • Best materials and components to increase reliability
  • In-house developed software with a user-friendly interface to save time
  • On-site project management to guarantee delays
Aquatic life support system illustration

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fish tank rack system for aquatic research facility

CONSULTING & TECHNOLOGY
FOR AQUATIC RESEARCH CENTRES

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