Shanghai Songjiang Vibration Absorber Co., Ltd. official website introduces the operation steps for marine polar world life support equipment. Songjiang Group provides high-quality rubber expansion joints for numerous marine polar world life support system circulation pumps, with a 5-year warranty. The life support system is the core of the entire marine polar world.
How to Build a Marine Polar World Life Support System?
Rubber expansion joints are mainly used at the inlet and outlet of the life support system circulation pump. They can effectively eliminate the vibration of the circulation pump, thereby protecting the pipeline from damage and improving the long-term use of the entire circulation system.
When marine creatures transition from the natural world to the exhibition pools and tanks of the polar marine world, their first challenge is survival. Creating an environment as close to nature as possible, where organisms can survive, grow, and even reproduce, gradually adapting to their new home in the polar marine world and meeting the demands of spectators, is the goal of the polar marine world. Natural landscaping, appropriate lighting, and water quality maintenance are basic requirements for maintaining marine life. Among these, the life support water system (hereinafter referred to as the life support system) is the core and key of water quality maintenance in the entire polar marine world, directly related to the survival and health of animals. The effectiveness of its treatment, daily operation, and maintenance costs directly determine the success or failure of the operation and management of the marine world.
- Filtration System In water treatment, filtration usually refers to the technique of using granular materials such as quartz sand to trap and remove particulate impurities in the water. Gravity filters and sand filters are generally used in the life support system. The advantage of gravity filters is stable and reliable operation, low energy consumption, good water quality, but they have limitations in terms of site layout, high initial investment, poor insulation, and require extensive maintenance. They are usually installed in circulation pools with high water quality requirements, such as marine world exhibits and seabed ecosystems. Sand filters are standardized products, with the advantages of flexible installation, simple operation, low initial investment, and good insulation. They are widely used in marine animal systems.
“Liansheng Water Environment Engineering Co., Ltd.”, known as the “Water Environment Leader”, is a core enterprise under the Liansheng Group, established in 1989. It has now established multiple business units in fields such as marine technology, culture and tourism, sports, and high-end hotels. Over the years, Liansheng has accumulated extensive experience from building numerous marine aquarium projects and has compiled an expert database based on technology. This database allows for professional program design based on factors such as water body size, medium, species and quantity of breeding, and functional use for each system, covering process flow, equipment selection, circulation mode, and cycle.
Liansheng Group not only has strong engineering and technical capabilities but also is a company capable of researching, developing, and manufacturing water treatment equipment for life support systems in the industry. The company has established well-equipped industrial production bases covering more than 40,000 square meters in Guangzhou and Zhongshan. The “LASWIM” brand series of life support system water treatment equipment produced by the company extensively adopts designs and technologies from the United States and Europe, conforming to international standards and requirements, and is highly favored by users.
- Dissolved Air Flotation and Disinfection System Dissolved air flotation technology involves injecting air into the water to adsorb surface-active substances in the water onto tiny bubbles, which rise to the surface to form foam and separate from the water, thereby removing dissolved and suspended substances from the water. Due to its high efficiency in removing proteins, it is often referred to as protein separation technology. The life support system uses a counter-current protein separator, where the removal of surface-active substances in the water depends on factors such as bubble size, contact time between bubbles and waste water, and the rate of airflow ascent.
Ozone (O3) has strong oxidation capabilities and can not only kill viruses and bacteria in water but also de-colorize, deodorize, and decompose organic substances, thereby reducing the biochemical oxygen demand (BOD) and chemical oxygen demand (COD) in contaminated water. Closed-loop water treatment typically combines dissolved air flotation and ozone disinfection. A jet pump extracts water from the bottom of the protein separator, where it is thoroughly mixed with ozone, ensuring effective contact between water and ozone. Additionally, the formed fine bubbles adsorb suspended matter and dissolved organic matter in the water, carrying them to the surface to form foam for removal. The treated water still contains a certain amount of ozone, which flows into the return water pool to continue reacting with pollutants in the water, reducing residual ozone damage to aquatic organisms.
Ultraviolet disinfection technology is based on modern preventive medicine and photodynamics, using specially designed, efficient, high-intensity, and long-life UVC ultraviolet radiation to irradiate flowing water, destroying or altering the DNA (deoxyribonucleic acid) structures of various cells, viruses, parasites, algae, and other pathogens in the water, causing immediate death or inability to reproduce, achieving the purpose of sterilization.
- Biochemical Filtration System In a closed-loop aquaculture water body, the main problem is the accumulation of toxic waste such as ammonia nitrogen and nitrite. Biological filtration involves cultivating biofilm on a certain carrier to decompose substances such as ammonia nitrogen in the water.
- Temperature Control System Different marine animals have different temperature requirements, and even animals of the same species but different breeds have different temperature requirements. The life support system typically includes plate heat exchangers, which use temperature-sensitive devices to control the supply of hot and cold sources, thereby controlling water temperature.
- Activated Carbon Adsorption Activated carbon is a non-polar adsorbent that can adsorb and remove toxic substances such as organic matter, heavy metal ions, and pigments from water. Activated carbon is inexpensive and has a significant effect on improving the quality and transparency of filtered water, especially during the initial stage of tank water breeding or when opening a business.
- Summary of Experience in Design, Operation, and Management of Life Support Systems Marine organisms are highly sensitive to residual ozone in water. Experiments have shown that the toxicity of residual ozone is due to its ability to deactivate one or more enzymes in the organism’s body. Even at very low concentrations in water, residual ozone can cause damage to the retina and skin of marine organisms. However, ozone is highly unstable in water. Water disinfection with ozone requires only a few minutes of retention time or aeration to disperse residual ozone to a safe level. Therefore, in the design, we usually set up a guide wall in the return water pool to aerate and disperse ozone, increasing the residence time of water.
The flow direction of water in the display tank directly affects the display effect and water quality of the entire tank. First, factors such as the size and shape of the entire display tank and the removal of suspended matter (animal feces, bait residues, and animal hair, etc.) need to be considered in water flow design. Poor water flow design often leads to the accumulation of various suspended matter in a corner of the tank, generating harmful substances such as hydrogen sulfide. Therefore, the size of the tank’s aggregation and sewage discharge capacity is critical to the entire display effect and is the focus of water flow direction design. The water inlet pipe needs to consider how to use the effect of water flow to achieve aggregation. The overflow outlet is mainly used to remove foam and oil pollution from the water surface, as well as some small density suspended matter. Overflow outlets and sewage pipes must be set in places where pollutants are prone to accumulate for easy removal.
Regular cleaning and maintenance play an important role in water quality maintenance in life support systems. Regular siphoning of the pond bottom can remove organic waste from the water system before it is decomposed by bacteria, thereby reducing the organic load of the life support system. Regular backwashing of the filter removes organic waste accumulated in the filter from the water system, also reducing the organic load of the life support system. Strengthening water quality monitoring allows effective monitoring to understand the content of pollutants and the balance of nutrient elements in the breeding water body at any time and make relevant adjustments in a timely manner.
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