Aquiculture integrated water processing unit and flushing method thereof

Abstract

The invention relates to the technical field of aquiculture water processing and discloses an aquiculture integrated water processing unit, which comprises a hopper-shaped pool body (10); a hole plate (22) is arranged at the upper part of the pool body (10); a filter material (20) for light weight foaming grains is arranged on the lower part of the hole plate (22); a communicating hole (41) and aback-flushing air chamber (40) are arranged at the lower part of the conical surface of the pool body (10); an intake pipe (42) and an exhaust pipe (43) are respectively arranged above the pool body;and a screen (21) is arranged at the lower part of the cylinder of the pool body (10). A flushing method for the aquiculture integrated water processing unit is as follows: a discharge pipe (15) is opened and then is closed; the intake pipe (42) is opened for charging air; the water in the back-flushing air chamber (40) is pressed into the pool body (10); when the back-flushing air chamber (40) is filled with air, the intake pipe (42) is closed and the exhaust pipe (43) is opened instantly; then the air is exhausted and the water in the pool body (10) quickly enters the back-flushing air chamber (40); then the filter material (20) downwards expands and looses; and the intercepted suspension solids and aged biomembrane fall into the water and the filter material (20) is flushed. The filtermaterial has high water processing efficiency, good back-flushing effect and low energy consumption.

Description

technical field [0001] The invention relates to the technical field of aquaculture water treatment, in particular to a device for removing solid particles and soluble organic matter in an industrial circulating aquaculture system. Background technique [0002] There are many solid particles and soluble organic matter in aquaculture system, which mainly come from feed and fish metabolites. The main components of solid particles are fish feces and residual bait; the main components of soluble organic matter are nutrients such as COD and nitrogen and phosphorus, among which ammonia nitrogen has a direct impact on the growth and even survival of fish. Its removal method and effect directly affect many factors such as the configuration of the entire system, construction cost, power consumption, and operating cost, as well as fish growth and breeding costs. [0003] Common removal methods for solid particles in aquaculture systems mainly include: gravity separation: such as sedim...

AI Technical Summary

Problems solved by technology

[0006] However, during use, it was found that after a period of use of this kind of biological purification bed, with the increase of small particles of organic dirt trapped in the filter material layer, the water treatment efficiency gradually decreased, especially after the filter material layer began to clog, it could not be cleaned and removed , when the blockage is serious, it can only stop running. Manual shovel digging and high-pressure water washing are adopted. The working conditions are harsh, the intensity is high, the time is long, and it is unsustainable. The field is eager to solve this problem and change this state.

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