Fish and vegetable symbiosis system

Abstract

The invention discloses a fish and vegetable symbiosis system comprising a culture region and a planting region and also comprising a sedimentation tank, a sewage separation region and a treatment andpurification region; the culture region comprises fish ponds; the treatment and purification region comprises a recovery tank and a purification tank; one side of each fish pond communicates with thepurification tank, the other side of each fish pond communicates with the sedimentation tank, and a driving part for pushing water in the purification tank into the fish ponds is arranged between each fish pond and the purification tank; the sedimentation tank is adjacent to the recovery tank, and an overflow wall is arranged between the sedimentation tank and a recovery and treatment tank; and the sewage separation region communicates with the planting region and the purification tank. Due to the design of the culture region, the planting region, the sedimentation tank, the sewage separationregion and the treatment and purification region, the fish and vegetable symbiosis system capable of realizing water recycle is formed to be beneficial to the emission reduction and the reasonable utilization of a water resource; and the design of the driving part is beneficial to the driving of water circulation in the fish and vegetable symbiosis system and the improvement of reasonable utilization of the water resource.

Description

technical field [0001] The invention relates to the technical field of ecological breeding, more specifically, it relates to a fish and vegetable symbiosis system. Background technique [0002] Aquaculture fishery, also known as aquaculture, refers to the cultivation of fish or various seafood for consumption in artificially opened fish farms on the shore. A large amount of high-concentration sewage containing fish excrement will be produced in the process of fish farming. If it is directly discharged into the water body or stored in an inappropriate place, it will be washed into the water body by rainwater, which may cause serious deterioration of surface water or groundwater quality. [0003] At present, the main treatment methods for fish farming water are: water purifying agent treatment, anaerobic treatment and aerobic treatment. However, the treatment of water purifiers takes a long time, and most of the water purifiers are secondary pollution sources after use; anaer...

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Problems solved by technology

However, the treatment of water purifiers takes a long time, and most of the water purifiers are secondary pollution sources after use; anaerobic treatment is characterized by less land occupation, low energy demand, and can also generate biogas, but the treatment cost is high and the treatment operation is complicated; The basic principle of aerobic treatment is to use microorganisms to decompose organic matter under aerobic conditions. It is characterized by moderate operating costs, but it occupies a large area, and it is easy to produce foul odors during the treatment process.

[0004] Most of the current farming and fish farming systems are separate cultivation of agriculture and fishery. The agricultural system has its irrigation and drainage facilities and fertilization process, while the fish farming system adopts an isolated fish pond design. Traditional agricultural cultivation requires long-term water supply, fertilization and irrigation. Therefore, it consumes a considerable amount of water supply, while traditional fish farming must regularly inject some new water and discharge waste water with concentrated impurities.

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