Automatic filtering and sewage discharging system for high-position pond circulating water breeding

Abstract

The invention discloses an automatic filtering and sewage discharging system for high-position pond circulating water breeding. A high-position pond breeding unit is a breeding pond, a water inlet isarranged on one side of the breeding pond, the bottom of the breeding pond is bowl-shaped, a sewage outlet is arranged in the middle of the bottom of the breeding pond, and an anti-escape device is arranged above the sewage outlet, a movable nano oxygenation disc is placed at the bottom of the breeding pond, and multiple waterwheel oxygenators are mounted around the high-position pond breeding unit; a steel wire net support is paved at the bottom of a filtering unit, a space is reserved between the steel wire net support and the bottom of the breeding pond, the filtering unit comprises a filtering area, a first buffering area and a second buffering area, a water quality real-time monitoring device is arranged in the first buffering area, an incoming water filter net is arranged at a position where the first buffering area is communicated with the high-position pond breeding unit, and an outgoing water filter net is arranged at a position where the second buffering area is communicatedwith the high-position pond breeding unit. By the system, real-time monitoring of water quality during breeding and automatic filtering of solid waste like feed residue and fish dung can be realized,cleanliness of a breeding water body can be maintained, water changing frequency can be reduced, and water resources can be saved.

Description

technical field [0001] The invention relates to a self-filtering sewage discharge system for circulating aquaculture in high-level pools, and belongs to the technical field of aquaculture. Background technique [0002] The high-level pond culture mode is a new high-density intensive culture mode that has emerged in recent years. Compared with traditional pond culture, it has the characteristics of high safety factor, convenient sewage discharge, strong controllability, high breeding density, high output and high breeding success rate. However, due to the large amount of feeding in the high-level pond culture process, excessive fish residual bait and feces are produced, resulting in serious water pollution. Especially in the later stage of breeding, a large amount of residual bait and feces are discharged into the water, causing the content of ammonia nitrogen and nitrite in the water to double, which can easily lead to fish diseases. In most cases, farmers reduce the conte...

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Problems solved by technology

Although this patent can discharge the solid sediments out of the sewage tank, it cannot realize the self-filtration of the water body during the breeding process. increase, the water quality is very easy to deteriorate, and it is difficult to improve water quality through frequent water changes in shallow hills where water resources are scarce

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