Water quality regulation and control system for penaeus vannamei culture higher-place pond

Abstract

The invention discloses a penaeus vannamei culture higher-place pond water quality regulation and control system which comprises a higher-place pond, a sedimentation pond, an aeration nitrification pond, a denitrification filter pond and an ozone disinfection pond which are sequentially connected through a pipeline, a biofilm formation combined filler is arranged in the higher-place pond, a water-soluble carbon supplementing assembly is arranged below the biofilm formation combined filler, and a water-soluble carbon supplementing assembly is arranged below the water-soluble carbon supplementing assembly. A defoaming weir is arranged on the inner wall of the upper side of the higher-place pond and located above the biofilm culturing filler, a defoaming block is arranged in the defoaming weir, a water inlet pipe is arranged on the upper portion of the higher-place pond, a water inlet area, a settling area and a water outlet area which are communicated with one another are arranged in the settling pond, a round pipe settling assembly is arranged in the settling area, and a water outlet pipe is arranged in the water outlet area. And the ozone disinfection tank is connected with the higher-place tank through a pipeline. The device is small in occupied area, stable in operation, large in treatment capacity, low in regulation and control cost, low in water resource requirement and good in water quality regulation and control effect.

Description

technical field [0001] The invention relates to the technical field of prawn culture, in particular to a water quality control system of a high-level pond for culturing Penaeus vannamei. Background technique [0002] Penaeus vannamei has the characteristics of wide temperature and salt, fast growth and so on. It is one of the three species with the highest production of farmed shrimp in the world. In recent years, with the continuous improvement and progress of high-level pond culture technology of Penaeus vannamei, the economic benefits of Penaeus vannamei culture have gradually improved, and the culture of Penaeus vannamei has developed rapidly. However, the feces and residual bait produced in the culture of Penaeus vannamei can cause deterioration of water quality, inhibit the growth of Penaeus vannamei, and even cause disease and death. Therefore, it is an inevitable choice to ensure the sustainable development of P. vannamei aquaculture to control the aquaculture water...

AI Technical Summary

Problems solved by technology

In the present invention, aiming at the characteristics of the elevated pond culture of Penaeus vannamei, a water quality control system for the cultured elevated pond of Penaeus vannamei has been designed, which includes an elevated pond, a sedimentation pond, an aeration nitrification pond, a denitrification filter pond and an ozone disinfection pond. The water body in the pool can be reused after being regulated, which can not only improve the water quality of the high level pool, but also reduce the demand for water resources and reduce the generation of tail water for farming; the invention improves the design of the high level pool, increasing the biological Film-hanging composite packing, water-soluble carbon supplementary components and defoaming weir; biological film-hanging composite packing is a conventional packing in this field, which is hung in the water body to grow beneficial microorganisms, which can clarify water quality, increase dissolved oxygen, and at the same time It can provide a habitat for shrimps; because the water body of the high level pool contains more algae, which grow at all levels of the water body, blue-green algae and green algae mainly live on the upper water surface, and spirulina, diatoms and other algae live in the middle and lower layers, normal conditions Under normal circumstances, various algae are in a state of mutual restraint and co-existence balance, but when the residual bait and feces in the water body are fermented, the ammonia nitrogen will increase, resulting in an imbalance of carbon and nitrogen. At this time, the algae in the middle and lower layers will be due to Unable to obtain enough carbon source, the growth and reproduction are restricted, thus becoming inferior algae, and the cyanobacteria and green algae growing on the upper water surface can absorb carbon dioxide in the air and obtain a large amount of carbon source through photosynthetic transformation , therefore, in the case of sufficient nitrogen source, a large amount of protein can be obtained to show explosive growth and become dominant algae, which seriously affects the survival and growth of shrimp. A water-soluble carbon supplement component is added. The water-soluble carbon supplement component is used to supplement the carbon source to the middle and lower algae in the water body of the high level pool to adjust the carbon-nitrogen ratio, so as to maintain the ecological balance of the water body. The bottom of the sedimentation tank can be installed with conventional aeration unit; the sedimentation tank is used to remove most of the granular suspended solids. Compared with conventional filtration machines such as microfilters, the processing capacity is large, the use cost is low, and no blockage will occur; the water body in the ozone disinfection tank in the present invention uses ozone Carrying out disinfection and sterilization is not only easy to operate, but also can increase the oxygen content in the water body. The water body in the ozone disinfection pool is sterilized and then transported to the high-level pool for water replenishment, which can reduce the demand for water; the surface layer of the water body in the high-level pool The foam can overflow into the defoaming weir and be removed by the defoaming block, which is beneficial to improve the water quality. The water in the defoaming weir can be sent to the ozone disinfection tank through the pipeline for reuse

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