CN219136571U

CN219136571U - Breeding wastewater treatment system

Info

Publication number: CN219136571U
Application number: CN202222926472.2U
Authority: CN
Inventors: 周营; 史金才; 黎小辉; 简子兴; 林跃
Original assignee: Guangdong Yikangsheng Environmental Protection Technology Co ltd
Current assignee: Guangdong Yikangsheng Environmental Protection Technology Co ltd
Priority date: 2022-11-03
Filing date: 2022-11-03
Publication date: 2023-06-06
Anticipated expiration: 2032-11-03

Abstract

The utility model provides a cultivation wastewater treatment system, belongs to the technical field of cultivation wastewater treatment, and solves the problems of high consumption of an oxidant, high chemical sludge yield and high system operation cost. The method comprises the steps of introducing the culture wastewater subjected to biochemical treatment and precipitation clarification into a first reaction tank, adding a coagulation solution to remove most suspended matters and colloid, solving the problems of large dosage of oxidant and large chemical sludge yield required next, introducing the solution subjected to precipitation into a second reaction tank, adding high-precision bleaching powder and lime solution, introducing the solution into a third reaction tank after mixing, adding PAM solution, introducing the solution into a delay reaction tank for reaction after mixing, thereby oxidizing and removing part COD (chemical oxygen demand) which is difficult to degrade in the wastewater, decoloring and dephosphorizing, and playing a role of disinfection.

Description

Breeding wastewater treatment system

Technical Field

The utility model relates to the technical field of cultivation wastewater treatment, in particular to a cultivation wastewater treatment system.

Background

In recent years, under the development of the livestock and poultry industry, the amount of the cultivation wastewater generated in the large-scale cultivation farm is larger and larger, and with the increasingly strict emission standard and the regional centralization of the cultivation farm, more and more cultivation wastewater can be emitted after reaching the standard. After being treated by the biochemical combination processes of anaerobic treatment, aerobic treatment and the like, the culture wastewater still contains high-concentration pollutants and suspended matters, and the discharge requirement can be met by advanced treatment. At present, after biochemical effluent is settled and clarified, a process of oxidizing before coagulating is generally adopted, and because a large amount of suspended matters, colloid and the like still exist in the biochemical effluent, the consumption of an oxidant and the yield of chemical sludge are higher, and the price of the oxidant in Fenton oxidation is relatively higher, so that the running cost of the whole system is high.

Disclosure of Invention

The utility model aims to provide a cultivation wastewater treatment system which aims to solve the problems of the background technology. In order to achieve the above purpose, the present utility model provides the following technical solutions: including pipeline, water pump and through the pipeline communicates in proper order first reaction tank, first sedimentation tank, second reaction tank, third reaction tank, time delay reaction tank, second sedimentation tank and clean water basin, every on the pipeline communicate have the water pump, first reaction tank the second reaction tank the third reaction tank with install rabbling mechanism in the middle of the top of time delay reaction tank respectively, the top of first reaction tank is equipped with a coagulating solution feeder hopper, the top of second reaction tank is equipped with high-precision bleaching powder feeder hopper and lime solution feeder hopper, the top of third reaction tank is equipped with a PAM solution feeder hopper, first reaction tank and wastewater pipe intercommunication.

Further, the top of first reaction tank is equipped with the apron, install on the apron rabbling mechanism with the feeder hopper, rabbling mechanism is including mounting bracket, motor and stirring leaf, the mounting bracket is fixed in the apron middle part, the motor rigid coupling in the top center of mounting bracket, the output of motor is connected with the dwang, the dwang pierces the apron, the end-to-end connection of dwang has the stirring leaf.

Further, the first sedimentation tank and the second sedimentation tank have the same structure.

Further, the inner bottom of the first sedimentation tank is provided with two sedimentation grooves, the bottoms of the two sedimentation grooves are respectively provided with a suction pipe, the suction pipes penetrate through the side wall of the first sedimentation tank, one end of each suction pipe, which is far away from each sedimentation groove, is connected with a slurry pump, and the slurry pump is connected with the sludge tank through a sludge pipe.

Further, two the tuber pipes have been placed respectively to the bottom of sedimentation groove, the tuber pipe pierces through the lateral wall of first sedimentation tank, just the tuber pipe is kept away from the one end of sedimentation groove is connected with the air-blower, sedimentation groove bottom the mouth of pipe of tuber pipe is aimed at the mouth of pipe of straw.

Further, 6 side air inlets are arranged at one end, close to the precipitation groove, of the air pipe.

Further, one of the air pipes is provided with a side air pipe, and an air outlet of the side air pipe is aligned to the joint of the two sedimentation grooves.

Further, an F-shaped isolation filter plate is arranged in the first sedimentation tank, and the F-shaped isolation filter plate is located above the sedimentation groove.

Further, be equipped with the inner panel on the F type keeps apart the filter, the inner panel both sides are equipped with filter vat and catch basin respectively, be equipped with a plurality of infiltration holes on the bottom plate of filter vat, quartz sand layer, activated carbon layer and KDF filter layer have been placed in proper order by supreme down to the filter vat, the mouth of pipe of pipeline is arranged in catch basin tank bottom top.

Further, the pipeline comprises a water outlet pipe and a water inlet pipe, two ends of the water pump are respectively communicated with the water outlet pipe and the water inlet pipe, and a pH meter is arranged on the water outlet pipe of the second reaction tank.

Compared with the prior art, the utility model has the beneficial effects that: the system adopts a combination process of two coagulation and strong oxidation; feeding the culture wastewater after biochemical treatment precipitation and clarification into a first reaction tank, adding a coagulation solution into the first reaction tank, fully mixing the solution through a stirring mechanism, feeding the mixed solution into the first precipitation tank by a water pump for precipitation, further removing most suspended matters and colloid, and removing part of COD, total phosphorus and chromaticity in the wastewater to complete a first coagulation process, wherein the process reduces the dosage of high-precision bleaching powder and lime solution in the next oxidant and the chemical sludge yield to a great extent due to the reduction of a great part of precipitation; adding the precipitated water into high-precision bleaching powder and lime solution, fully mixing the mixed solution, adding PAM solution after mixing, stirring and coagulating, introducing the breeding wastewater into a delay reaction tank for full reaction, oxidizing and removing COD (chemical oxygen demand) of the undegraded part in the wastewater, decoloring and dephosphorizing, and performing the functions of disinfection and sterilization to complete the oxidation process of the breeding wastewater; finally, introducing the oxidized cultivation wastewater into a second sedimentation tank for sedimentation, thus completing a second coagulation process; after precipitation treatment, effluent can reach the standard and be discharged from a clean water tank, so that the system adopts high-precision bleaching powder and lime solution with relatively low cost while Fenton oxidant is not used, and the system reduces the running cost of the system while ensuring that wastewater reaches the standard.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of the overall structure of the utility model;

FIG. 2 is an enlarged schematic view of a portion of the utility model;

FIG. 3 is a schematic cross-sectional view of a first reaction tank and a first sedimentation tank of the utility model;

FIG. 4 is a schematic cross-sectional view of a first settling tank of the utility model;

FIG. 5 is an enlarged schematic view of FIG. 4 at A;

FIG. 6 is a schematic view of an F-type isolation filter plate of the present utility model;

the names of the components marked in the figures are as follows:

a first reaction tank; 101. a water outlet pipe; 1011. a pH meter; 102. a water inlet pipe; 11. a wastewater pipe; 121. a mixing feed hopper; 122. a PAM solution feed hopper; 123. a high-precision bleaching powder feed hopper; 124. a lime solution feed hopper; 13. a stirring mechanism; 131. a mounting frame; 132. a motor; 133. a rotating lever; 134. stirring the leaves; 14. a cover plate; 2. a first sedimentation tank; 21. an air duct; 211. a side air port; 212. a side air pipe; 22. a suction pipe; 23. a precipitation groove; 24. f-type isolation filter plates; 241. a KDF filter layer; 242. a quartz sand layer; 243. an inner plate; 244. an activated carbon layer; 245. a filter tank; 246. a water storage tank; 3. a second reaction tank; 4. a third reaction tank; 5. a time delay reaction tank; 6. a second sedimentation tank; 7. a clean water tank; 8. a sludge pool; 81. a slurry pump; 82. a sludge pipe; 9. a blower; 10. and (3) a water pump.

Detailed Description

In order to further describe the technical means and effects adopted by the present utility model for achieving the intended purpose, the following detailed description will refer to the specific implementation, structure, characteristics and effects according to the present utility model with reference to the accompanying drawings and preferred embodiments.

< b > examples: referring to FIG. 1, a system for treating aquaculture wastewater comprises a pipeline, a water pump 10, and a first reaction tank 1, a first sedimentation tank 2, a second reaction tank 3, a third reaction tank 4, a time delay reaction tank 5, a second sedimentation tank 6 and a clean water tank 7 which are sequentially communicated through the pipeline, wherein the first reaction tank 1 is communicated with a wastewater pipe 11, so that aquaculture wastewater after biochemical treatment precipitation clarification is introduced into the first reaction tank 1 through the wastewater pipe 11, a coagulation solution feed hopper 121 is arranged at the top of the first reaction tank 1, the coagulation solution feed hopper 121 can be added with a coagulation solution, the coagulation solution comprises polymeric ferric sulfate and PAM solution, and when aquaculture wastewater enters the first reaction tank 1, the coagulation solution of polymeric ferric sulfate and a small amount of PAM solution is added into the first reaction tank 1 through the coagulation feed hopper 121 to coagulate the aquaculture wastewater; each pipeline is communicated with a water pump 10, and stirring mechanisms 13 are respectively arranged in the middle of the tops of the first reaction tank 1, the second reaction tank 3, the third reaction tank 4 and the time delay reaction tank 5; the stirring mechanism 13 is started to fully mix the solutions in the first reaction tank 1, the second reaction tank 3, the third reaction tank 4 and the delay reaction tank 5 and transfer the solutions through the water pump 10, for example, after the solution in the first reaction tank 1 is fully mixed through the stirring mechanism 13, the water pump 10 is started to introduce the mixed solution into the first sedimentation tank 2 for sedimentation, so that most suspended matters and colloid are sedimented at the bottom of a sedimentation groove, part of COD, total phosphorus and chromaticity in waste water can be removed, and the process greatly reduces the dosage of high-precision bleaching powder and lime solution in the next oxidant and the chemical sludge yield due to the reduction of a great part of sedimentation; the top of the second reaction tank 3 is provided with a high-precision bleaching powder feed hopper 123 and a lime solution feed hopper 124, after the water after the precipitation and filtration of the first precipitation tank 2 is introduced into the second reaction tank 3, proper amounts of high-precision bleaching powder and lime solution are respectively added into the high-precision bleaching powder feed hopper 123 and the lime solution feed hopper 124 in the second reaction tank 3, and the mixed solution is fully mixed through a stirring mechanism 13, so that the high-precision bleaching powder and the lime solution remove phosphorus in wastewater and refractory organic matters in oxidized wastewater, and in addition, the two feed hoppers are designed to enable the high-precision bleaching powder and the lime solution to respectively react with the precipitated wastewater for a period of time independently, and then are stirred and mixed, so that the solution is reacted more fully, and the reaction quality is improved; the top of the third reaction tank 4 is provided with a PAM solution feed hopper 122, when the mixed solution is introduced into the third reaction tank 4, PAM solution is added into the PAM solution feed hopper 122 and fully mixed by a stirring mechanism 13, so that the culture wastewater is fully coagulated, and then the coagulated culture wastewater is introduced into the delay reaction tank 5 by a water pump 10 for full reaction, at the moment, the deep oxidation is performed, the COD (chemical oxygen demand) of the refractory part of the wastewater, the decoloration and dephosphorization are fully removed, and the disinfection and sterilization effects are achieved; the Fenton oxidant is not used in the process, and meanwhile, the high-precision bleaching powder and lime solution with relatively low cost are adopted, so that the system can ensure that the wastewater reaches the standard, and meanwhile, the running cost of the system is reduced; finally, the oxidized cultivation wastewater is led into a second sedimentation tank 6 to be precipitated through a water pump 10, and the water after sedimentation and filtration can be led into a clean water tank 7 through the water pump 10;

referring to fig. 1 and 3, a cover plate 14 is arranged at the top of the first reaction tank 1, a stirring mechanism 13 and a feed hopper 12 are mounted on the cover plate 14, the stirring mechanism 13 comprises a mounting frame 131, a motor 132 and a stirring blade 134, the mounting frame 131 is fixed in the middle of the cover plate 14, the motor 132 is fixedly connected to the top center of the mounting frame 131, the output end of the motor 132 is connected with a rotating rod 133, the rotating rod 133 penetrates through the cover plate 14, and the tail end of the rotating rod 133 is connected with the stirring blade 134; after the mixed solution is poured into the first reaction tank 1, the motor 132 is started, and the motor 132 drives the stirring blade 134 to rotate, so that the polymeric ferric sulfate and a small amount of PAM solution are fully mixed with the culture wastewater, the subsequent precipitation quality is improved, and as much suspended matters and colloidal precipitates as possible are precipitated from the solution. The first sedimentation tank 2 and the second sedimentation tank 6 have the same structure; the design firstly brings convenience for the installation of the system, and secondly improves the quality of clean water through twice precipitation.

Referring to fig. 3 and 4, two sedimentation grooves 23 are provided at the inner bottom of the first sedimentation tank 2, a suction pipe 22 is respectively disposed at the bottoms of the two sedimentation grooves 23, the suction pipe 22 penetrates through the side wall of the first sedimentation tank 2, one end of the suction pipe 22, which is far away from the sedimentation grooves 23, is connected with a slurry pump 81, the slurry pump 81 is connected with the sludge tank 8 through a sludge pipe 82, and the sedimentation grooves 23 are designed to better collect the sedimented substances, so as to facilitate the discharge of the sedimented substances, and when the slurry pump 81 is started, the sedimented substances sequentially enter the sludge tank 8 through the suction pipe 22, the slurry pump 81 and the sludge pipe 82, so that the sedimentation grooves 23 are emptied, and the next sedimentation is better performed.

The bottoms of the two sedimentation grooves 23 are respectively provided with an air pipe 21, the air pipes 21 penetrate through the side wall of the first sedimentation tank 2, one end of each air pipe 21 far away from each sedimentation groove 23 is connected with the air blower 9, and the pipe orifice of each air pipe 21 at the bottom of each sedimentation groove 23 is aligned with the pipe orifice of the corresponding suction pipe 22; when the suction pipe 22 is blocked, the blower 9 is started to enable air to be introduced into the air pipe 21, and then the pipe opening of the air pipe 21 blows air to the pipe opening of the suction pipe 22, so that objects blocked by the suction pipe 22 are blown away, and the system can work better.

6 side air ports 211 are formed in one end, close to the sedimentation groove 23, of the air pipe 21; the design of the side air port 211 can play an auxiliary role in the process of eliminating the blockage of the suction pipe 22, and further shorten the blockage time of the suction pipe 22.

An F-shaped isolation filter plate 24 is arranged in the first sedimentation tank 2, and the F-shaped isolation filter plate 24 is positioned above the sedimentation groove 23; the F-shaped isolation filter plate 24 is designed to divide the coagulated cultivation wastewater into a precipitation area and a clear water area, and the filtering process is completed.

The F-shaped isolation filter plate 24 is provided with an inner plate 243, both sides of the inner plate 243 are respectively provided with a filter tank 245 and a water storage tank 246, a bottom plate of the filter tank 245 is provided with a plurality of water seepage holes, the filter tank 245 is sequentially provided with a quartz sand layer 242, an activated carbon layer 244 and a KDF filter layer 241 from bottom to top, and the design of the quartz sand layer 242 and the activated carbon layer 244 can further filter out suspended matters and other particle impurities in the mixed liquid, further reduce the turbidity of the mixed liquid, and the KDF filter layer 241 can filter out heavy metal ions in the mixed liquid, so that the water quality is further improved; the pipe orifice of the water outlet pipe 101 is arranged above the bottom of the water storage tank 246, so that the water treated when entering the next process is filtered water, and the cultivation wastewater can be treated for multiple times.

The pipeline comprises a water outlet pipe 101 and a water inlet pipe 102, two ends of the water pump 10 are respectively communicated with the water outlet pipe 101 and the water inlet pipe 102, a pH meter 1011 is arranged on the water outlet pipe 101 of the second reaction tank 3, and a pH meter 1011 is arranged on the water outlet pipe 101 of the second reaction tank 3; the design of the pH meter can detect the pH value in the mixed solution in real time, so that the system can control the pH value of the effluent to be in a proper range while ensuring the removal of pollutants.

Referring to fig. 4 and 5, a side air duct 212 is disposed on one of the air ducts 21, and an air outlet of the side air duct 212 is aligned with a joint of the two sedimentation grooves 23; this design of side air duct 212, when the air-blower starts, can blow to the junction of two sedimentation grooves 23, and then make the material that the junction deposits blow to two sedimentation grooves 23 in, prevent because the time is too long, the material that the junction deposits takes place to consolidate, when the precipitation material after the rigid coupling is connected with F type isolation filter 24 above the sedimentation groove 23, can cause the influence to the capacity of this sedimentation tank, and then reduced the scrubbing efficiency of aquaculture waste water.

< b > principle of operation: feeding the culture wastewater after biochemical treatment precipitation clarification into a first reaction tank 1, then adding a proper amount of mixed solution of polymeric ferric sulfate and a small amount of PAM solution into the first reaction tank 1 through a coagulation feed hopper 121, then starting a motor 132, driving a stirring blade 134 to rotate by the motor 132, further fully mixing the polymeric ferric sulfate, the small amount of PAM solution and the culture wastewater after precipitation, starting a water pump 10 after mixing, feeding the mixed solution into a first precipitation tank 2 for precipitation, thereby most suspended matters and colloid are precipitated at the bottom of a precipitation groove 23, and removing partial COD, total phosphorus and chromaticity in the wastewater, thereby completing a first coagulation process; after the precipitation is finished, the water after the precipitation and filtration is introduced into the second reaction tank 3 through the water pump 10, a proper amount of high-precision bleaching powder and lime solution are respectively added into the high-precision bleaching powder feed hopper 123 and the lime solution feed hopper 124 in the second reaction tank 3, then the mixed solution is fully mixed through the stirring mechanism 13, the mixed solution is introduced into the third reaction tank 4, the PAM solution is added into the PAM solution feed hopper 122 in the third reaction tank 4, the PAM solution is fully mixed through the stirring blade 134, the cultured wastewater is fully coagulated, the coagulated wastewater is introduced into the delay reaction tank 5 through the water pump 10 to fully react, finally the oxidized wastewater is introduced into the second sedimentation tank 6 through the water pump 10 to be precipitated, and the water after the precipitation and filtration is introduced into the clean water tank 7 through the water pump 10 after the precipitation treatment. Therefore, the system adopts high-precision bleaching powder and lime solution with relatively low cost while not using Fenton oxidant, so that the system reduces the running cost of the system while ensuring that the wastewater reaches the standard, and simultaneously reduces the consumption of the oxidant and the chemical sludge yield by the design of a first coagulation process.

It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "upper," "lower," "left," "right," "front," "back," and the like are used herein for illustrative purposes only.

Claims

1. A cultivation wastewater treatment system, characterized in that: including pipeline, water pump (10) and pass through first reaction tank (1), first sedimentation tank (2), second reaction tank (3), third reaction tank (4), time delay reaction tank (5), second sedimentation tank (6) and clean water basin (7) that the pipeline communicates in proper order, every communicate on the pipeline have water pump (10), first reaction tank (1) second reaction tank (3) third reaction tank (4) with install rabbling mechanism (13) in the middle of the top of time delay reaction tank (5) respectively, the top of first reaction tank (1) is equipped with one and coagulates solution feeder hopper (121), the top of second reaction tank (3) is equipped with high-definition drift powder feeder hopper (123) and lime solution feeder hopper (124), the top of third reaction tank (4) is equipped with one PAM solution feeder hopper (122), first reaction tank (1) and waste water pipe (11) intercommunication.

2. The aquaculture wastewater treatment system of claim 1, wherein: the top of first reaction tank (1) is equipped with apron (14), install on apron (14) rabbling mechanism (13) with feeder hopper (12), rabbling mechanism (13) are including mounting bracket (131), motor (132) and stirring leaf (134), mounting bracket (131) are fixed in apron (14) middle part, motor (132) rigid coupling in the top center of mounting bracket (131), the output of motor (132) is connected with dwang (133), dwang (133) are penetrated apron (14), the end-to-end connection of dwang (133) has stirring leaf (134).

3. The aquaculture wastewater treatment system of claim 1, wherein: the structure of the first sedimentation tank (2) is the same as that of the second sedimentation tank (6), two sedimentation grooves (23) are formed in the inner bottoms of the first sedimentation tank (2), a suction pipe (22) is respectively arranged at the bottoms of the two sedimentation grooves (23), the suction pipe (22) penetrates through the side wall of the first sedimentation tank (2), one end, away from the sedimentation grooves (23), of the suction pipe (22) is connected with a mud pump (81), and the mud pump (81) is connected with a mud tank (8) through a mud pipe (82).

4. A aquaculture wastewater treatment system according to claim 3 wherein: two the bottom of sedimentation groove (23) has placed an tuber pipe (21) respectively, tuber pipe (21) are penetrated the lateral wall of first sedimentation tank (2), just tuber pipe (21) are kept away from the one end of sedimentation groove (23) is connected with air-blower (9), the mouth of pipe of tuber pipe (21) of sedimentation groove (23) bottom aligns the mouth of pipe of straw (22).

5. The aquaculture wastewater treatment system of claim 4 wherein: and 6 side air inlets (211) are formed in one end, close to the sedimentation groove (23), of the air pipe (21).

6. The aquaculture wastewater treatment system of claim 5, wherein: one of the air pipes (21) is provided with a side air pipe (212), and an air outlet of the side air pipe (212) is aligned to the joint of the two sedimentation grooves (23).

7. A aquaculture wastewater treatment system according to claim 3 wherein: an F-shaped isolation filter plate (24) is arranged in the first sedimentation tank (2), and the F-shaped isolation filter plate (24) is positioned above the sedimentation groove (23).

8. The aquaculture wastewater treatment system of claim 7, wherein: the filter plate is characterized in that an inner plate (243) is arranged on the F-shaped isolation filter plate (24), a filter tank (245) and a water storage tank (246) are respectively arranged on two sides of the inner plate (243), a plurality of water seepage holes are formed in the bottom plate of the filter tank (245), a quartz sand layer (242), an activated carbon layer (244) and a KDF filter layer (241) are sequentially arranged on the filter tank (245) from bottom to top, and a pipe orifice of the pipe is arranged above the bottom of the water storage tank (246).

9. The aquaculture wastewater treatment system of claim 1, wherein: the pipeline comprises a water outlet pipe (101) and a water inlet pipe (102), two ends of the water pump (10) are respectively communicated with the water outlet pipe (101) and the water inlet pipe (102), and a pH meter (1011) is arranged on the water outlet pipe (101) of the second reaction tank (3).