An integrated device for aquaculture wastewater treatment and its application

A technology of aquaculture wastewater and integrated devices, which is applied in the field of agricultural resources and the environment, and can solve the problems of not achieving complete sterilization

Active Publication Date: 2020-07-24
CHINA AGRI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, this method still does not achieve complete sterilization, and it is still necessary to supplement chemical reagents to strengthen the fermentation effect and increase the concentration of active ingredients in liquid fertilizers.

Method used

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  • An integrated device for aquaculture wastewater treatment and its application
  • An integrated device for aquaculture wastewater treatment and its application
  • An integrated device for aquaculture wastewater treatment and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0082] Embodiment 1, integrated device for aquaculture wastewater treatment

[0083] Such as figure 1 As shown, the integrated device for aquaculture wastewater treatment of the present invention includes: U-shaped tubular hydrothermal reactor 1, high temperature resistant pipe 2, folded plate anaerobic biological flocculation push flow tank 3, inclined plate aeration crystallization tank 4, dynamic ultrafiltration Membrane reaction tank 5, aeration-nanofiltration dual-function membrane reaction tank 6, water collection and sedimentation tank 7 and aquaculture wastewater storage tank 8.

[0084] Such as image 3 As shown, when the reaction starts, the aquaculture wastewater is first introduced into the aquaculture wastewater storage tank 8, and the pressure valve 36 between the heating inner bag and the normal pressure cooling inner bag 9 in the U-shaped tubular hydrothermal reactor 1 is closed, and the wastewater is reused. The lifting pump 21 pumps the aquaculture wastewat...

Embodiment 2

[0091] Embodiment 2. Use of an integrated device for aquaculture wastewater treatment--aquaculture wastewater resources, energy recovery and treatment

[0092] Pour the aquaculture wastewater with a pH of 6.4, a COD value of about 6400mg / L, a TS of about 7700mg / L, an ammonia nitrogen concentration of about 675mg / L, a total phosphorus concentration of about 137mg / L, and a solid content of 9% into the aquaculture wastewater In the liquid storage pool 8, the heating temperature of the U-shaped tubular hydrothermal reactor 1 is controlled by the above-mentioned embodiment to 110°C, and the reaction pressure is 2.0Mpa. After heating for 30 minutes, open the pressure valve between the heating liner and the normal-pressure cooling liner 9 36. The sample is automatically flowed into the normal-pressure cooling inner tank 9 by using the U-shaped tube principle. The ammonia delivery pipe 10 is opened, and the gas containing ammonia is passed into the pre-aeration sedimentation chamber 2...

Embodiment 3

[0093] Example 3, the use of an integrated device for aquaculture wastewater treatment--aquaculture wastewater resources, energy recovery and treatment

[0094]Pour the aquaculture wastewater with a pH of 6.2, a COD value of about 10900mg / L, a TS of about 11850mg / L, an ammonia nitrogen concentration of about 758mg / L, a total phosphorus concentration of about 163mg / L, and a solid content of 9% into the aquaculture wastewater In the liquid storage pool 8, the heating temperature of the U-shaped tube hydrothermal reactor 1 is controlled to 120° C., and the reaction pressure is 2.5 Mpa. After heating for 50 minutes, waste water automatically flows into the normal-pressure cooling inner tank 9 by using the principle of the U-shaped tube. The cooling liner opens the ammonia delivery pipe 10, and the gas containing ammonia is passed into the pre-aeration sedimentation chamber 26 of the inclined plate aeration crystallization tank 4, and the ammonia nitrogen concentration increases by ...

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Abstract

The invention discloses an integrated device for treating aquaculture wastewater and application of the integrated device. The integrated device comprises an aquaculture wastewater liquid storage tank, a U-shaped tubular hydrothermal reactor, a folded plate anaerobic bioflocculation plug flow tank, a sloping plate aeration crystallizing pond, a dynamic ultrafiltration membrane reaction pool, an aeration-nanofiltration bifunctional membrane reaction pool and a water collecting and settling pond, wherein a sample inlet of the U-shaped tubular hydrothermal reactor is connected with a sample output of the aquaculture wastewater liquid storage tank; a sample outlet of the U-shaped tubular hydrothermal reactor is connected with a sample inlet of the folded plate anaerobic bioflocculation plug flow tank; a sample outlet of the folded plate anaerobic bioflocculation plug flow tank is connected with a sample inlet of the sloping plate aeration crystallizing pond; a sample outlet of the sloping plate aeration crystallizing pond is connected with a sample inlet of the dynamic ultrafiltration membrane reaction pool; a sample outlet of the dynamic ultrafiltration membrane reaction pool is connected with a sample inlet of the aeration-nanofiltration bifunctional membrane reaction pool; a sample outlet of the aeration-nanofiltration bifunctional membrane reaction pool is connected with the water collecting and settling pond. According to the integrated device disclosed by the invention, safe, recycling and energy utilization treatment of the aquaculture wastewater can be simultaneously realized.

Description

technical field [0001] The invention relates to an integrated device for treating aquaculture wastewater and its application, belonging to the technical field of agricultural resources and environment. Background technique [0002] In recent years, the transformation of my country's breeding mode from free-range to intensive has accelerated the development of animal husbandry, but it has also produced various environmental problems, especially the contradiction between excessive discharge of breeding wastewater and limited land that cannot be absorbed The resulting non-point source pollution and water eutrophication pollution. On the other hand, aquaculture wastewater is rich in energy elements and nutrients such as carbon, oxygen, nitrogen, and phosphorus, and is a renewable resource. Therefore, the treatment mode of resource recycling and energy substitution of aquaculture wastewater has become one of the modes of environmental sustainable development. [0003] However, a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/14C02F103/20
CPCC02F1/02C02F1/442C02F1/444C02F1/5263C02F1/58C02F1/66C02F3/284C02F3/30C02F7/00C02F9/00C02F2001/007C02F2103/20C02F2303/04Y02E50/30
Inventor 张涛方慈江荣风
Owner CHINA AGRI UNIV
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