CN-224226847-U - Microalgae cultivation wastewater treatment system based on concentrated and diluted diversion

CN224226847UCN 224226847 UCN224226847 UCN 224226847UCN-224226847-U

Abstract

The utility model relates to a microalgae cultivation wastewater treatment system based on thick and thin split flow, which comprises a solid-liquid separation device and an anaerobic fermentation device, wherein the solid-liquid separation device comprises a thick liquid sedimentation tank and a thin liquid sedimentation tank, the thick liquid sedimentation tank and the thin liquid sedimentation tank are separated by a partition plate, the top side edge of the partition plate is lower than the edge heights of the thick liquid sedimentation tank and the thin liquid sedimentation tank, the upper side of the thick liquid sedimentation tank is provided with a impurity removal filter device, the impurity removal filter device is provided with a shell, the inner wall of the shell is provided with two chains, a plurality of screen meshes are connected between the two chains, the inner wall of the shell is provided with a waste discharge hopper, the chains are obliquely arranged, the upper chain segments of the chains are conveyed from bottom to top, the waste discharge hopper is positioned below the discharge end of the upper chain segment, the shell is provided with a feed inlet above the feed end of the upper chain segment, and the bottom wall of the shell is provided with a liquid outlet. The utility model has simple whole process flow and lower energy consumption, can realize the recycling and high-value utilization of livestock and poultry breeding wastewater to the greatest extent, and reduces the sewage treatment cost.

Inventors

ZHOU YING
LIAO JINSONG
LI HUALIANG
WU SIHAO
GAO ZHIWEI
FANG FULING

Assignees

广东益康生环保科技有限公司

Dates

Publication Date: 20260512
Application Date: 20250605

Claims (6)

1. The microalgae cultivation wastewater treatment system based on the dense and thin split flow is characterized by comprising a solid-liquid separation device and an anaerobic fermentation device, wherein the solid-liquid separation device comprises a concentrated solution sedimentation tank and a thin solution sedimentation tank, the concentrated solution sedimentation tank and the thin solution sedimentation tank are separated by a partition plate, the top side edge of the partition plate is lower than the edge height of the concentrated solution sedimentation tank and the thin solution sedimentation tank, the upper side of the concentrated solution sedimentation tank is provided with a impurity removal filter device, the impurity removal filter device is provided with a shell, the inner wall of the shell is provided with two chains, a plurality of screen meshes are connected between the two chains, the inner wall of the shell is provided with a waste discharge hopper, the chains are obliquely arranged, an upper chain segment of the chains is conveyed from bottom to top, the waste discharge hopper is positioned below a discharge end of the upper chain segment, a feed inlet is arranged above the feed end of the upper chain segment of the shell, a liquid outlet is formed in the bottom wall of the shell, the thin solution sedimentation tank is arranged above the thick solution sedimentation tank, a plurality of aeration discs are connected through pipelines, the rear side of the thin solution sedimentation tank is fixedly connected with an aeration pump, the front side of the concentrated solution sedimentation tank is provided with an aeration pump, the front side of the concentrated solution pump is provided with a liquid suction pump, and the concentrated solution suction pipe is connected with the concentrated solution suction pump, and the concentrated solution is connected with the concentrated solution suction pump through the suction pipe.
2. The microalgae cultivation wastewater treatment system based on the concentration and dilution diversion of claim 1, wherein a thin liquid outlet pipe is arranged at the edge of the opening of the thin liquid sedimentation tank, and is connected with a thin liquid outlet pump.
3. The microalgae cultivation wastewater treatment system based on thick and thin split flow according to claim 1, wherein the anaerobic fermentation device comprises a tank body, a thick liquid inlet is formed in the lower portion of the side wall of the tank body, a biogas slurry outlet and a biogas outlet are formed in the upper portion of the side wall of the tank body, a stirring shaft is rotatably connected to the top wall and the bottom wall of the tank body, a stirring motor is arranged on the top wall of the tank body and used for driving the stirring shaft to rotate, and a plurality of stirring paddles are fixedly sleeved on the stirring shaft.
4. The microalgae cultivation wastewater treatment system based on the thick and thin split flow of claim 3, wherein the stirring paddles are axially arranged, each stirring paddle is provided with four paddles, and the four paddles are uniformly distributed along the circumferential direction.
5. The microalgae cultivation wastewater treatment system based on thick and thin split flow according to claim 1, wherein the middle part of the bottom wall of the tank body is provided with an upward protruding cone part, a lower bearing is arranged in the top of the cone part, the stirring shaft is rotatably connected with the lower bearing, the edge of the bottom wall of the tank body is provided with a discharge hole, the discharge hole is in a fan shape, the lower side of the discharge hole is fixedly connected with a spiral mud discharging mechanism, the inner cavity of a shell of the spiral mud discharging mechanism is communicated with the inner cavity of the tank body, the spiral mud discharging mechanism is provided with a spiral blade rod, and one end of the shell of the spiral mud discharging mechanism is provided with a discharge hole.
6. The microalgae cultivation wastewater treatment system based on thick and thin split flow according to claim 5, wherein the lower end of the stirring shaft is fixedly connected with a stirring frame, the stirring frame is provided with three stirring frames, top side frame strips of the three stirring frames are fixedly connected through a circular ring, and inner side frame strips of the stirring frames are gradually inclined downwards from inside to outside.

Description

Microalgae cultivation wastewater treatment system based on concentrated and diluted diversion Technical Field The utility model relates to a culture wastewater treatment system, in particular to a microalgae culture wastewater treatment system based on concentrated and diluted diversion. Background The livestock breeding wastewater is organic wastewater with complex components, and the high content of organic compounds and high content of ammonia and phosphorus are main water quality characteristics. In addition, the wastewater is dark black, has strong pungent odor, and contains a large amount of suspended matters, which also brings difficulty to the treatment thereof. In the organic waste matter source pollution in rural areas of China, 35.0% -40.0% of the organic waste matter source pollution is derived from livestock and poultry manure, and the annual livestock and poultry manure production amount accounts for more than 40.0% of the total amount of agricultural organic waste. The cultivation wastewater contains a large amount of organic matters, and the direct discharge can bring serious pollution and is also a waste of resources. At present, livestock and poultry breeding wastewater is treated in modes of standard treatment and discharge, agricultural irrigation and the like, so that the treatment process is complex, large construction cost is required to be input, and the later operation cost is high, so that a plurality of breeding enterprises are overwhelmed, and the long-term development of the livestock and poultry breeding industry is restricted. Disclosure of utility model The utility model aims to provide a microalgae cultivation wastewater treatment system based on concentrated and diluted diversion, which has simple overall process flow and lower energy consumption, can realize the recycling and high-value utilization of livestock and poultry cultivation wastewater to the greatest extent, reduces the wastewater treatment cost, and can realize certain economic output. In order to achieve the above purpose, the present utility model provides the following technical solutions: The utility model provides a little algae cultivation effluent disposal system based on dense and thin reposition of redundant personnel, including solid-liquid separation device and anaerobic fermentation device, solid-liquid separation device includes concentrate sedimentation tank and thin solution sedimentation tank, pass through the baffle separation between concentrate sedimentation tank and the thin solution sedimentation tank, the top side limit height of baffle is less than the marginal height of concentrate sedimentation tank and thin solution sedimentation tank, the upside of concentrate sedimentation tank is equipped with edulcoration filter equipment, edulcoration filter equipment is equipped with the casing, the casing inner wall is equipped with two chains, be connected with a plurality of sieve piece between two chains, the casing inner wall is equipped with the exhaust bucket, the chain slope sets up, the upper segment of chain is carried from bottom to top, the exhaust bucket is located the discharge end below of upper segment, the casing is equipped with the feed inlet above the feed end of upper segment, the casing diapire is equipped with the liquid outlet, thick solution sedimentation tank top is located to the liquid outlet, the thin solution sedimentation tank bottom wall is connected with a plurality of aeration dish, a plurality of aeration dish rear side fixedly connected with the aeration pump, the front side of concentrate sedimentation tank is equipped with the deep pump, the deep pump is connected with the deep pump in the deep pump drawing liquid pipe, the deep pump drawing liquid pipe is connected with the deep pump. Specifically, a thin liquid outlet pipe is arranged at the edge of the opening of the thin liquid sedimentation tank, and the thin liquid outlet pipe is connected with a thin liquid outlet pump. Specifically, anaerobic fermentation device includes the jar body, and thick liquid inlet is located jar body lateral wall lower part, and jar body lateral wall upper portion is equipped with biogas slurry outlet and biogas outlet, and jar body roof and diapire rotationally are connected with the (mixing) shaft, and jar body roof is equipped with agitator motor, and agitator motor is used for driving the (mixing) shaft rotation, and the (mixing) shaft fixedly overlaps and is equipped with a plurality of stirring rake. Specifically, a plurality of paddles are arranged along the axial direction, each paddle is provided with four paddles, and the four paddles are uniformly distributed along the circumferential direction. Specifically, the diapire middle part of the jar body is equipped with bellied cone up, is equipped with the lower bearing in the top of cone, and the (mixing) shaft is rotationally connected with the lower bearing, and the diapire edge of the jar body is equipped with th