一种新型池塘循环水养殖系统
By introducing high-density rearing areas, solid particulate matter interception areas, and water purification areas into the pond aquaculture system, combined with aerators and multi-stage treatment equipment, the problem of low sewage collection and discharge efficiency has been solved, achieving efficient water purification and zero discharge, while reducing energy consumption and labor costs.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- YANGZHOU WUHUSIDANG AQUATIC TECHNOLOGY CO LTD
- Filing Date
- 2025-08-07
- Publication Date
- 2026-07-17
AI Technical Summary
In traditional pond aquaculture systems, the sewage collection and discharge equipment has low sewage suction efficiency, which leads to the inability to discharge fish feces in a timely manner. This results in poor purification effect in the purification zone, water quality that fails to meet aquaculture standards, and high energy consumption and labor costs.
A novel recirculating aquaculture system for ponds is designed, comprising a high-density rearing area, a solid particulate matter interception area, a water purification area, and a solid-liquid separation and wastewater treatment area. The system forms a circulating flow through a water-blocking wall and utilizes equipment such as an aerator, a wastewater collection and discharge device, a vertical flow sedimentation tank, a microfilter, and a biological filter to achieve efficient collection and purification of aquaculture wastewater for multi-stage treatment.
It achieves efficient collection and removal of sedimented particulate matter, suspended particulate matter, and surface oil, saving energy and protecting the environment, reducing aquaculture costs, improving water purification efficiency, and achieving zero discharge.
Smart Images
Figure CN224504392U_ABST
Abstract
Claims
1. A new type of pond recirculating aquaculture system characterized in that, include: A pond (100) is provided with a water-blocking wall (101) and a water-pushing device (102) inside. The water-blocking wall (101) divides the pond (100) into interconnected areas, and the water-pushing device (102) drives the pond water to circulate around the water-blocking wall (101). Arranged sequentially along the direction of water circulation: The high-density breeding area (200) is provided with at least one breeding tank (210), the breeding tank (210) is equipped with a bottom sewage collection and discharge device (2106) and a side sewage discharge device (2107), as well as an oxygenation water pump (2104) and a pure oxygen oxygenation inlet (2105) set on the side of the breeding tank (210) for oxygenating the breeding tank (210) and promoting water flow; the sewage collection and discharge device (2106) is connected to the vertical flow sedimentation tank (301) above water through the bottom sewage discharge pipe (21062); The solid particulate matter interception zone (300) includes a vertical flow sedimentation tank (301), a microfiltration machine (302), and a pusher or pumper (303) connected in sequence, for treating sewage from the sewage collection and discharge device (2106). The pusher or pumper (303) transports the treated water to the water purification zone (400). The entire solid particulate matter interception zone (300) is equipped with a brush array (305). The bottom of the solid particulate matter interception zone (300) is an inverted cone shape, and a sewage collection well (306) is provided at the lowest point of the inverted cone bottom. The side sewage discharge (2107) is connected to the front end of the solid particulate matter interception zone (300) through a pipe. The bottom sewage discharge (3011) of the vertical flow sedimentation tank (301), the backwash sewage discharge (3021) of the microfiltration machine (302), and the sewage collection well (306) are connected to a vacuum sewage pumping device (501) through a first sewage discharge pipe (304). The water purification zone (400) is equipped with aquatic organisms and aquatic plants for purifying water. It receives the effluent from the solid particulate matter interception zone (300) and performs ecological purification. The purified water is then returned to the high-density aquaculture zone (200). Set on the bank of the pond: The solid-liquid separation and effluent treatment area (500) includes a vacuum sewage pumping device (501), an onshore vertical flow sedimentation tank (502), a biochemical filter tank (503), and an ultraviolet sterilizer (507) connected in sequence. It is used to receive and treat the pollutants intercepted from the solid particulate matter interception area (300), and the treated water is discharged back to the water purification area (400). The instrumentation and control area (600) includes a high-pressure oxygenation fan and its piping system (601), a pure oxygen generator or liquid oxygen device (602), a high dissolved oxygen water preparation device (603), a water quality parameter monitoring and alarm system (604), an automatic feeder (605), and a system control device (606). The high-pressure oxygenation fan and its piping system (601) are connected to an oxygenation water pusher (2104) and a water pusher (102). The pure oxygen generator or liquid oxygen device (602) is connected to the high dissolved oxygen water preparation device (603), and the outlet of the high dissolved oxygen water preparation device (603) is connected to the pure oxygen oxygenation inlet (2105). The sensors of the water quality parameter monitoring and alarm system (604) are installed in the aquaculture tank (210) to monitor water quality indicators. The feeding port of the automatic feeder (605) is located in the area directly above the aquaculture tank (210). The system control device (606) controls the air output of the high-pressure aeration fan and the amount of high dissolved oxygen water prepared according to water quality indicators, and controls the feeding at regular intervals.
2. The novel pond recirculating aquaculture system according to claim 1, characterized in that: The surface area of the high-density captive breeding area (200) accounts for 5%-15% of the surface area of the entire pond (100).
3. A new type of pond recirculating aquaculture system according to claim 1, characterized in that: The aquaculture tank (210) includes an upper opening (2101), a bottom (2102), and a side enclosure (2103). A fixed or floating walkway (220) is provided around the aquaculture tank (210). The upper opening (2101) of the aquaculture tank (210) is circular, square, or octagonal in shape, and the bottom (2102) of the aquaculture tank is conical. The sewage collection and discharge device (2106) is located at the center of the bottom (2102) of the aquaculture tank. The sewage collection and discharge device (2106) consists of a sewage collection bucket (21061), a bottom sewage pipe (21062), and a bottom fish barrier net (21063).
4. A novel recirculating aquaculture system in a pond according to claim 3, characterized in that: The oxygenating water pusher (2104) is installed on the side enclosure (2103) of the aquaculture tank. The oxygenating water pusher (2104) is equipped with an external water inlet (21041), an internal water inlet (21042), and an outlet (21043). Each inlet and outlet is equipped with a fish barrier net (21044).
5. A new type of pond recirculating aquaculture system according to claim 3, characterized in that: The side drain (2107) is installed on the side enclosure (2103) of the aquaculture tank. The side drain (2107) is equipped with a side drain fish barrier net (21071) and a plate mechanism (21072) for adjusting the side drainage volume.
6. A new type of pond recirculating aquaculture system according to claim 1, characterized in that: The mesh size of the microfiltration machine (302) in the solid particulate matter interception zone (300) is 150-200 mesh.
7. A new type of pond recirculating aquaculture system according to claim 1, characterized in that: The water purification zone (400) includes filter-feeding fish (401), omnivorous fish (402), benthic filter-omnivorous animals (403), grass carp (404) and mandarin fish (405) used to control the number of organisms, water hyacinth (406) planted on the water surface of the pond (100) and water spinach (407) planted on the floating bed.
8. A novel pond recirculating aquaculture system according to claim 1, characterized in that: The vacuum sewage pumping device (501), the onshore vertical flow sedimentation tank (502), and the biochemical filter tank (503) in the solid-liquid separation and tailwater treatment area (500) are all equipped with bottom sewage discharge. The thick sewage that settles to the bottom is transported to the sewage collection tank (505) and the fermentation tank (506) through the second sewage discharge pipe (504).