Marine product low-temperature temporary rearing water defoaming system

Abstract

The invention discloses a marine product low-temperature temporary rearing water defoaming system which comprises a cylindrical sleeve type structure which is formed by combining a cathode chamber, a desalting chamber, an anode chamber and a seaweed chamber from inside to outside and is coaxial, a water inlet is formed in the upper end of each cylindrical sleeve type structure, and a water outlet is formed in the lower end of each cylindrical sleeve type structure; and a cation exchange film and an anion exchange film are arranged between the cathode chamber and the desalination chamber, a proton exchange film is arranged between the anode chamber and the seaweed chamber, a pair of anodes are arranged in the anode chamber, a cathode is arranged in the cathode chamber, and the anodes and the cathode are communicated and fixed through wires to form a closed circuit under the condition that marine product low-temperature temporary culture water is added. According to the method, a physical method, a biological method and a biochemical method are coupled to play a synergistic effect, the seaweed enteromorpha and the salt-tolerant electrogenesis microorganism particles are combined, nitrogen and phosphorus, DOM, COD and the like in the marine product low-temperature temporary culture water can be directly absorbed and degraded under the conditions of illumination and weak light, foam generation in the marine product low-temperature temporary culture water is inhibited, and meanwhile, the effects of electricity generation and desalination are achieved.

Description

technical field [0001] The invention belongs to the field of sea water quality purification, and in particular relates to a foam removal system for low-temperature temporary culture of seafood. Background technique [0002] In recent years, people's demand for seafood has been increasing, but there are many problems in the process of temporary maintenance of seafood: such as the accumulation of excreta from the metabolism of seafood, unreasonable water circulation, poor filter effect and foam generation, etc. , resulting in poor water for temporary breeding, endangering the survival rate and quality of seafood, and even causing food safety problems. The quality of seafood is closely related to the environment of the temporary breeding water. The continuous accumulation of organic nitrogen (residual bait, metabolites) in the temporary breeding water will seriously exceed the standard of nitrogen content in the water, and will also increase the concentration of nitrite, DOM an...

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Problems solved by technology

[0002] In recent years, people's demand for seafood has been increasing, but there are many problems in the process of temporary maintenance of seafood: such as the accumulation of excreta from the metabolism of seafood, unreasonable water circulation, poor filter effect and foam generation, etc. , resulting in poor temporary water, endangering the survival rate and quality of seafood, and even causing food safety problems

[0003] At present, conventional water treatment methods are mainly used to remove foam in seawater at home and abroad, including physical methods, chemical methods and biological methods; physical methods include precipitation, filtration adsorption and foam separation, etc., filtration adsorption is to remove organic pollution in water through adsorbents Materials to remove foam, such as plastic filter balls, filter cotton, activated carbon, and hydrogel, etc., but the filter effect is poor, the adsorption material is expensive, and the preparation is complicated; foam separation is to use the interface properties of surfactants and the adsorption of bubbles to remove water. Suspended particles are used to purify water quality, but the energy consumption is high, the cost is high, and the operation safety is lacking; the chemical method mainly uses technologies such as ozone oxidation, ultraviolet disinfection and flocculation to eliminate water body germs and decompose pollutants, and improve water quality to inhibit the generation of foam in temporary water. However, it is easy to produce secondary pollution and has a strong toxic effect, so it cannot be used for the foam treatment of temporary water; the biological method has biodegradation method, which uses microorganisms with degradative ability to degrade pollutants in water, but the removal efficiency is low and the degradation If it is not thorough, it will cause secondary pollutants

It can be seen that the existing methods have disadvantages such as low processing efficiency, inability to effectively prevent foam generation or completely eliminate foam, susceptible to the influence of temperature and chemical filter materials, and food safety hazards, and it is difficult to adapt to the removal of foam in seafood low-temperature temporary storage water needs

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