CN-119430548-B - Tail water purification system for pearl mussel cultivation

CN119430548BCN 119430548 BCN119430548 BCN 119430548BCN-119430548-B

Abstract

The water treatment device comprises a plurality of microorganism treatment tanks serving as a first-stage treatment cultivation tail water stage and an aquatic plant purification tank serving as a second-stage treatment cultivation tail water stage, wherein cultivation tail water enters different microorganism treatment tanks through a plurality of tail water inlet pipes, activated sludge and an aeration mechanism for purifying water quality are arranged at the bottom of each microorganism treatment tank, and the aquatic plant purification tanks are communicated with the plurality of microorganism treatment tanks through pipelines. The microbial treatment tank is arranged on the activated sludge layer through the cover of the interlayer cover, aeration efficiency is improved by reducing space, so that the water quality purification efficiency of microorganisms is improved, meanwhile, nitrogen and phosphorus substances after microbial treatment can be recovered through the adsorbent filled in the interlayer cover and used as nitrogen and phosphorus fertilizer for recycling, and in addition, the water quality after the stage of first-stage treatment of the cultivation tail water is further adsorbed and treated by the aquatic plants, so that the recovery and reutilization after water quality purification can be met.

Inventors

HU BEIJUAN
ZHAO DAXIAN
LAI XINXIN
WANG HUIPING
QIU HUIMIN
HU TENGFEI
YU GUILAN
GONG HAIBO
HUANG BIN
JIAN SHAOQING

Assignees

南昌大学

Dates

Publication Date: 20260512
Application Date: 20241125

Claims (6)

1. A tail water purifying system for culturing pearl mussels is characterized by comprising a plurality of microorganism treatment tanks (100) used as a stage for treating the culturing tail water at one stage and an aquatic plant purifying tank (300) used as a stage for treating the culturing tail water at two stages; Wherein, the culture tail water enters different microorganism treatment tanks (100) through a plurality of tail water inlet pipes (101), and the bottom of the microorganism treatment tank (100) is provided with activated sludge (600) and an aeration mechanism for purifying water quality; The aquatic plant purifying tank (300) is communicated with a plurality of microorganism treating tanks (100) through pipelines, and an adsorption layer (302) for further purifying water quality and a substrate layer (301) for cultivating aquatic plants are arranged in the aquatic plant purifying tank (300); wherein an interlayer cover (500) which is covered above the activated sludge (600) layer is arranged in the microorganism treatment tank (100), and a lifting mechanism for adjusting the installation depth of the interlayer cover (500) is also arranged above the microorganism treatment tank (100); Wherein, the jacket of the interlayer cover (500) is filled with an adsorption filling agent (501) for adsorbing nitrogen and phosphorus substances, and the inner wall of the interlayer cover (500) is provided with adsorption holes (5011) which are convenient for contacting with water; a supporting frame (503) is also arranged in the interlayer cover (500), and aeration insertion cones (506) for inserting activated sludge are uniformly arranged on the supporting frame (503) at intervals; The aeration insertion cone (506) is of a hollow cone structure and is communicated with an aeration mechanism positioned outside the interlayer cover (500) through an aeration pipe, an aeration slit is formed in the peripheral wall of the aeration insertion cone (506), and a material guide pipe (505) for taking out the adsorption filling agent (501) is arranged on the peripheral wall of the interlayer cover (500).
2. The tail water purification system for cultivating pearl mussels according to claim 1, wherein the microorganism treatment tank has a cylindrical structure, and a tail water inlet pipe (101) and a primary drain pipe (102) are provided on the outer peripheral wall thereof.
3. The tail water purification system for culturing pearl mussels according to claim 2, wherein the aeration mechanism comprises an aeration pump (700) positioned at the top of the microorganism treatment tank (100), an external air pipe (701) communicated with the aeration pump (700), and an internal air pipe (702) arranged on the supporting frame (503) and used for communicating the external air pipe (701) with the aeration insertion cone (506); wherein the built-in air pipe (702) is coiled on the supporting frame (503).
4. The tail water purification system for cultivating pearl mussels according to claim 3, wherein the lifting mechanism comprises an opening and closing transmission seat (400) arranged at the top of the microbial treatment tank (100) through a frame body, a screw rod (401) arranged on the opening and closing transmission seat (400), and a screw rod motor (402) arranged on the opening and closing transmission seat (400) and used for adjusting the lifting of the screw rod (401), wherein the lower end of the screw rod (401) is in transmission connection with the top of the interlayer cover (500).
5. The tail water purification system for pearl mussel cultivation according to claim 4, wherein a plurality of guide rods (502) are vertically installed on the interlayer cover (500), and shaft sleeves matched with the guide rods (502) are arranged on the frame body.
6. The tail water purification system for cultivating pearl mussels according to claim 1, wherein an aeration tank (305) is arranged in the aquatic plant purification tank (300), a supporting layer (303) is arranged right above the aeration tank (305) in the aquatic plant purification tank (300), an adsorption layer (302) and a substrate layer (301) are arranged on the supporting layer (303), aquatic plants are planted on the substrate layer (301), a plurality of porous adsorption mesh belts (304) are arranged at the bottom of the supporting layer (303), aeration holes which are right opposite to the bottom of the porous adsorption mesh belts (304) are formed in the aeration tank (305), and the aeration tank (305) is communicated with an air pump (307) above the aquatic plant purification tank (300) through an air pipe (306).

Description

Tail water purification system for pearl mussel cultivation Technical Field The invention relates to the technical field of cultivation tail water purification, in particular to a tail water purification system for cultivating pearl mussels. Background The tail water is rich in nutrient salts, namely the feed fed in the cultivation process is not completely ingested and can be settled to the bottom mud or dissolved in the water, so that the content of the nutrient salts such as ammonia nitrogen, nitrite, nitrate, phosphorus and the like in the water is increased. Drug residue for preventing and treating diseases, antibiotics, disinfectants and other drugs may cause drug residue in water. Biological metabolites such as aquatic animal excreta, carbon dioxide and ammonia generated by respiration, and biological metabolic byproducts such as dead and exfoliated tissues. Organic matters are accumulated, namely, feed residues, animal and plant carcasses and other organic matters are accumulated, so that the organic load of the water body is increased, and the water quality is deteriorated. Microorganism pollution, namely, under the condition of high-density cultivation, the number of microorganisms such as bacteria, viruses and the like in the water body is increased, and the spread of diseases can be possibly caused. However, in the prior art, tail water of pearl mussels can not be treated effectively, so that environmental pollution is reduced, and recycling of resources is realized. Disclosure of Invention The invention aims to provide a tail water purification system for pearl mussels, which solves the problems of water quality purification and waste utilization of tail water for pearl mussels. In order to solve the technical problems, the invention adopts the following technical scheme: the invention provides a tail water purifying system for culturing pearl mussels, which comprises a plurality of microorganism treatment tanks used as a stage for treating the culturing tail water at one stage and an aquatic plant purifying tank used as a stage for treating the culturing tail water at two stages; The culture tail water enters different microorganism treatment tanks through a plurality of tail water inlet pipes respectively, and the bottom of the microorganism treatment tank is provided with activated sludge and an aeration mechanism for purifying water quality; The aquatic plant purifying pond is communicated with the microorganism treating ponds through pipelines, and an adsorption layer for further purifying water quality and a substrate layer for cultivating aquatic plants are arranged in the aquatic plant purifying pond. Further, the microorganism treatment tank is of a cylindrical structure, and a tail water inlet pipe and a primary drain pipe are arranged on the peripheral wall of the microorganism treatment tank; Wherein an interlayer cover which is arranged above the activated sludge layer in a covering way is arranged in the microorganism treatment tank, and a lifting mechanism which is used for adjusting the installation depth of the interlayer cover is also arranged above the microorganism treatment tank. Still further, the jacket of the interlayer cover is filled with an adsorption filling agent for adsorbing nitrogen and phosphorus substances, and the inner wall of the interlayer cover is provided with adsorption holes which are convenient for contacting water; A supporting frame is also arranged in the interlayer cover, and aeration insertion cones for inserting activated sludge are uniformly arranged on the supporting frame at intervals; the aeration insertion cone is of a hollow cone structure and is communicated with an aeration mechanism positioned outside the interlayer cover through an aeration pipe, an aeration slit is formed in the peripheral wall of the aeration insertion cone, and a material guide pipe for taking out the adsorption filler is arranged on the peripheral wall of the interlayer cover. Still further, the aeration mechanism comprises an aeration pump positioned at the top of the microorganism treatment tank, an external air pipe communicated with the aeration pump, and an internal air pipe which is arranged on the supporting frame and is used for communicating the external air pipe with the aeration insertion cone; wherein the built-in air pipe is coiled on the supporting frame. Still further, the elevating system includes opening and closing the drive seat through the support body setting in microorganism treatment pond top, set up the screw rod on opening and closing the drive seat, set up on opening and closing the drive seat and be used for adjusting the screw rod is gone up and down the screw rod motor, wherein in the lower extreme transmission of screw rod is connected the top of intermediate layer cover. Still further, install a plurality of guide bars on the intermediate layer cover is vertical, be provided with on the support body with the axle sleeve of guide bar ad