A self-purifying circulating aquaculture system
A technology for recirculating aquaculture and aquaculture ponds, applied in the field of recirculating aquaculture, which can solve the problems of limited water quality improvement ability, complicated management and operation, and high operating costs, and achieve the effects of promoting air conduction effect, increasing oxygen concentration, and low construction and operation costs
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Embodiment 1
[0028] like figure 1 and figure 2 As shown, a self-cleaning circulating aquaculture system includes a breeding pond 1, a diversion wall 2, a breeding pond vent pipe 3, a valve 4; a fish blocking net 5, a submersible pump 6, a Y-shaped filter 7, and an artificial wetland inlet pipe 8. Horizontal subsurface flow constructed wetland 9, constructed wetland emptying pipe 10, constructed wetland outlet pipe 11, water supply pipe 12, air guide pipe 13, first packing layer 14, second packing layer 15, third packing layer 16, vegetation layer 17 .
[0029] Furthermore, the breeding pond 1 and the diversion wall 2 are reinforced concrete structures, and the area of the breeding pond 1 is 600 m 2 , the effective water depth is 2m, grass carp is cultured in the pond, and the density of grass carp culture is 0.8 fish / m 2 .
[0030] Further, the vent pipe 3 of the breeding pond, the water inlet pipe 8 of the constructed wetland, the vent pipe 10 of the constructed wetland, the water ...
Embodiment 2
[0044] The effective water depth of breeding pond 1 is 1.8m, and crucian carp is cultured in the pond, and the breeding density of crucian carp is 0.8 fish / m 2 . The fishing net 5 is a 12-mesh nylon net; the air guide pipe 13 is a DN32 UPVC pipe, and the arrangement density is 9 pieces / m 2 ;The specification of the first packing layer 14 is length×width×height=2m×6m×0.8m; the specification of the second packing layer 15 is length×width×height=6m×6m×0.8m; the specification of the third packing layer 16 is length× Width × height = 2m × 6m × 0.8m; vegetation layer 16 is planted with canna, and the planting density is 16 plants / m 2 .
[0045] Other components of the self-cleaning recirculating aquaculture system are consistent with Embodiment 1.
[0046] Application of a self-purifying circulating aquaculture system in culturing crucian carp.
[0047] Since this example has been in operation for 6 months, it has only replenished water without changing water with the outside wo...
Embodiment 3
[0050] Spoonnose sturgeon are cultured in the breeding pond 1, and the breeding density is 0.3 fish / m 2 ; The air guide pipe 13 is a UPVC pipe of DN32, and the arrangement density is 12 pieces / m 2 ; The second packing layer 15 particle diameter is the gravel packing of 20 ~ 25mm; Vegetation layer 16 planting plants are iris, and the planting density is 16 plants / m 2 .
[0051] Other components of the self-cleaning recirculating aquaculture system are consistent with Embodiment 1.
[0052] Application of a self-cleaning recirculating aquaculture system in the breeding of sturgeon.
[0053] Since this example has been in operation for 6 months, it has only replenished water without changing water with the outside world, and has not taken other aeration and oxygenation measures. Good, the following table adopts the water quality monitoring result of the breeding pond of the present embodiment:
[0054] water quality pH COD cr
[0055] Remarks: Spoon-kissed stu...
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Abstract
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