CN217972910U - Chondroitin sulfate waste water treatment system - Google Patents
Chondroitin sulfate waste water treatment system Download PDFInfo
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- CN217972910U CN217972910U CN202222016278.0U CN202222016278U CN217972910U CN 217972910 U CN217972910 U CN 217972910U CN 202222016278 U CN202222016278 U CN 202222016278U CN 217972910 U CN217972910 U CN 217972910U
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Abstract
The utility model discloses a chondroitin sulfate production wastewater treatment system, which comprises a pretreatment unit, a strengthening biological treatment unit and a sludge dewatering treatment unit which are connected in sequence, wherein the pretreatment unit comprises a grid tank, a primary sedimentation tank, an aeration adjusting tank and an air floatation machine which are connected in sequence through pipelines; the enhanced biological treatment unit comprises a hydrolysis acidification tank, an IC anaerobic reactor, a facultative tank, an aerobic tank and a secondary sedimentation tank which are connected in sequence; the sludge dewatering treatment unit comprises a sludge concentration tank, a sludge flocculation dosing device, a sludge screw pump and a sludge dewatering machine. The utility model discloses a materialization treatment process and biochemical treatment process combine together, furthest's interests microorganism self metabolism, and the running cost is low, and the treatment effect is good, can realize the effective processing to chondroitin sulfate production sewage.
Description
Technical Field
The utility model relates to a sewage treatment system, concretely relates to chondroitin sulfate waste water treatment system belongs to environmental protection technical field.
Background
Chondroitin sulfate is an important health product, is also a biochemical raw material, and is obtained from animal cartilage through processes of alkali cooking, alcohol extraction and the like. From the analysis in the production process, the main pollutants in the wastewater are animal cartilage residues (protein, fat and the like) and substances such as ethanol and the like added in the production process, and a large amount of polluted wastewater is generated in the production process.
Chondroitin sulfate can produce a large amount of waste water in process of production, compares with other waste water, and chondroitin sulfate waste water has following three apparent characteristics: 1. the wastewater discharge and the water quality change are large in fluctuation, and the COD content is high: for example, the cod concentration (unit: mg/l) in the water body can fluctuate within the range of thousands to tens of thousands; 2. high ammonia nitrogen content: the wastewater contains a large amount of protein, and if the wastewater is discharged into a natural water body, organic nitrogen in the protein is mineralized into inorganic nitrogen through an anoxic reaction, so that the water body is seriously affected, and the water body is black and smelly and eutrophicated; 3. the grease is high: the water contains animal fat, and the fat can cause the water body to be anoxic after being discharged into the water body, thereby influencing the respiration of water body organisms.
Lipid substances in the chondroitin sulfate wastewater can be biodegraded, but the aerobic and anaerobic biological treatment of the wastewater caused by the direct entering of the wastewater into a biochemical treatment unit causes a plurality of problems, the floating loss and toxicity of sludge are removed, the load of a reactor is also limited, and the wastewater is determined to be added with a pretreatment process for removing fat and the like in the wastewater during treatment.
From the organic load of the wastewater, the COD concentration of the wastewater inlet water is higher and exceeds the aerobic biochemical inlet water load, so an anaerobic treatment process is needed, the biochemical property of the sewage is improved while the inlet water load is reduced, and the subsequent biochemical treatment is facilitated. In addition, because the ammonia nitrogen content in the wastewater is high, the ammonia nitrogen removal must be considered in the wastewater treatment, so the nitrogen removal process needs to be considered when selecting the process.
Therefore, in order to solve the above problems, it is necessary to provide a processing method with low cost and good overall processing effect.
SUMMERY OF THE UTILITY MODEL
In view of this, the utility model provides a chondroitin sulfate waste water treatment system adopts materialization processing technology and biochemical treatment process to combine together to reach the effective improvement to chondroitin sulfate waste water.
In order to solve the technical problem, the utility model discloses a technical scheme be: a chondroitin sulfate production wastewater treatment system comprises a pretreatment unit, an enhanced biological treatment unit and a sludge dehydration treatment unit which are connected in sequence, wherein the pretreatment unit comprises a grating tank, a primary sedimentation tank, an aeration regulating tank and an air floatation machine which are connected in sequence through pipelines; the enhanced biological treatment unit comprises a hydrolysis acidification tank, an IC anaerobic reactor, a facultative tank, an aerobic tank and a secondary sedimentation tank which are connected in sequence; the sludge dewatering treatment unit comprises a sludge concentration tank, a sludge flocculation dosing device, a sludge screw pump and a sludge dewatering machine; the grid pond is arranged at the foremost end of the system, is in common wall with the primary sedimentation pond and is connected with the primary sedimentation pond through a pipeline, and a rotary grid is arranged in the grid pond; the primary sedimentation tank is a vertical flow sedimentation tank, the center of the primary sedimentation tank is provided with a guide cylinder, the periphery of the primary sedimentation tank is provided with an overflow weir, the overflow weir and the aeration regulation tank share the same wall, and the primary sedimentation tank is connected through overflow holes; the aeration adjusting tank is provided with a floating ball liquid level meter and a sewage lifting pump, and the bottom of the aeration adjusting tank is provided with a perforating aeration system which is connected with an air blower through a pipeline; the sewage lifting pump of the aeration adjusting tank is connected with a water inlet of the air floating machine through a pipeline, the air floating machine adopts a high-efficiency dissolved air floating machine, the front end of the air floating machine is provided with two reaction areas, the two reaction areas are connected through overflowing holes, the first reaction area is connected with a PAC dosing device through a pipeline, the second reaction area is connected with a PAM dosing device through a pipeline, and stirring devices are arranged in the two reaction areas; a pipeline mixer is arranged on a connecting pipeline of the aeration adjusting tank and the air floatation machine and is connected with an alkali dosing device; a soft filler, a submersible stirrer and a sewage lifting pump are arranged in the hydrolysis acidification tank; the sewage lift pump of the hydrolysis acidification tank is connected with the water inlet of the IC anaerobic reactor through a pipeline, the water outlet of the IC anaerobic reactor is connected with the facultative tank through a pipeline, and a water distribution device, a sludge discharge device and an upper and lower three-phase separator are arranged in the IC anaerobic reactor; the facultative tank, the aerobic tank and the secondary sedimentation tank are sequentially arranged adjacently and share the tank wall, overflowing holes are formed in the tank wall and are sequentially connected, soft fillers and a tubular aeration system are arranged in the facultative tank, and the tubular aeration system is connected with an air blower through a pipeline; the interior of the aerobic tank is provided with a soft filler and a mixed liquid reflux pump, and the bottom of the aerobic tank is provided with a microporous tubular aerator with a non-return device, and the microporous tubular aerator is connected with a roots blower through a pipeline; an inclined tube filler is arranged in the secondary sedimentation tank, and an overflow weir is arranged around the top of the secondary sedimentation tank; the primary sedimentation tank and the secondary sedimentation tank are provided with sludge pumps; one end of the sludge screw pump is communicated with the sludge concentration tank through a pipeline, the section of pipeline is also connected with a sludge flocculation dosing device through a dosing pipeline, and the other end of the sludge screw pump is communicated with the sludge dewatering machine; the sludge concentration tank is connected with sludge discharge pipelines of the primary sedimentation tank, the air flotation machine, the IC anaerobic reactor and the secondary sedimentation tank, and the upper-layer wastewater is connected with the aeration regulating tank through a water return pipe.
Further, the alkali dosing device, the PAC dosing device, the PAM dosing device and the sludge flocculation dosing device are single-barrel two-pump type skid-mounted devices, and a stirrer is mounted at the top of the barrel.
Furthermore, an online pH meter is arranged on a connecting pipeline between the aeration adjusting tank and the air floatation machine.
Furthermore, an internal circulation system and an internal circulation system lift pump are installed in the IC anaerobic reactor.
Furthermore, the facultative tank tubular aeration system and the blower connecting pipeline are provided with electromagnetic valves.
Further, the secondary sedimentation tank sludge pump is connected with the hydrolysis acidification tank, the facultative tank and the aerobic tank through pipelines.
The utility model has the advantages that: the combination of the physicochemical treatment process and the biochemical treatment process is adopted, the self-metabolism of microorganisms is benefited to the maximum extent, the operation cost is low, the treatment effect is good, and the effective treatment of the chondroitin sulfate production sewage can be realized.
Drawings
Fig. 1 is a flow chart of the present invention.
In the figure: 1. a grating pool, 1.1, a rotary grating, 2, a primary sedimentation pool, 2.1, a primary sedimentation pool guide cylinder, 2.2, a primary sedimentation pool overflow weir, 2.3, a primary sedimentation pool sludge pump 3, an aeration adjusting pool, 3.1, a floating ball level meter, 3.2, an aeration adjusting pool perforation aeration system, 3.3, an aeration adjusting pool sewage lifting pump, 3.4, a pipeline mixer, 3.5, an alkali dosing device, 4, an air flotation machine, 4.1, a PAC dosing device, 4.2, a PAM dosing device, 5, a hydrolysis acidification pool, 5.1, a submersible mixer, 5.2, soft filler of the hydrolysis acidification pool, 5.3, a wastewater lifting pump of the hydrolysis acidification pool, 6, an IC anaerobic reactor, 6.1, a water distribution device, 6.2, a three-phase separator, 6.3, an internal circulation system lift pump, 7, a facultative tank, 7.1, facultative tank soft filler, 7.2, a facultative tank tubular aeration system, 8, an aerobic tank, 8.1, aerobic tank soft filler, 8.2, a microporous tubular aerator, 8.3, a mixed liquid reflux pump, 9, a secondary sedimentation tank, 9.1, inclined tube filler, 9.2 a secondary sedimentation tank overflow weir, 9.3, a secondary sedimentation tank sludge pump, 10, a sludge concentration tank, 11, a sludge screw pump, 12, a sludge conditioning and dosing device, 13, a sludge dewatering machine, 14 and a Roots blower.
Detailed Description
The following further describes the embodiments of the present invention with reference to the drawings. A chondroitin sulfate production wastewater treatment system comprises a pretreatment unit, an enhanced biological treatment unit and a sludge dehydration treatment unit which are connected in sequence, wherein the pretreatment unit comprises a grating tank 1, a primary sedimentation tank 2, an aeration regulating tank 3 and an air floatation machine 4 which are connected in sequence through pipelines; the enhanced biological treatment unit comprises a hydrolysis acidification tank 5, an IC anaerobic reactor 6, a facultative tank 7, an aerobic tank 8 and a secondary sedimentation tank 9 which are connected in sequence; the sludge dewatering treatment unit comprises a sludge concentration tank 10, a sludge screw pump 11, a sludge flocculation dosing device 12 and a sludge dewatering machine 13; chondroitin sulfate production wastewater flows in from one side of a grid tank 1 and flows through a rotary grid 1.1, after large floating matters are filtered, the chondroitin sulfate production wastewater automatically flows into a primary sedimentation tank 2, solid particles with large specific gravity in the primary sedimentation tank 2 are precipitated in a bottom mud bucket, supernatant automatically flows into an aeration regulating tank 3, the wastewater is subjected to water quantity regulation and water quality homogenization through the stirring action of a perforation aeration system 3.2 in the aeration regulating tank 3, then the wastewater is pumped to an air flotation machine 4 through a sewage lifting pump 3.3 through a pipeline, a pipeline mixer 3.4 is arranged on the pipeline, water flows in the pipeline and reacts with alkali added by an alkali adding device 3.5 to regulate the pH value to about 8, oil stain, protein, SS (suspended substances) and the like in the wastewater in the air flotation machine 4 are mixed and react with added PAC and PAM to generate floc, the floc is combined with micro bubbles generated by air flotation to form scum, the scum is scraped, the effluent automatically flows into a hydrolysis acidification tank 5, the wastewater is pre-acidified by using anoxic bacteria in the tank, the wastewater is pumped to an IC (6), and the wastewater is subjected to degrade macromolecular organic matters into small molecules and finally converted into carbon dioxide and the like through the action of anaerobic bacteria. The effluent automatically flows into a facultative tank 7, macromolecular organic matters in the sewage are further degraded, and the effluent automatically flows into a contact oxidation tank 8 after the biodegradability of the sewage is improved. The wastewater utilizes the metabolism of aerobic microorganisms to remove most organic pollutants, and effluent automatically flows into a secondary sedimentation tank 9 after total nitrogen is removed through nitrification and denitrification. The sludge in the sewage in the secondary sedimentation tank 9 is settled in a sludge hopper at the bottom of the tank under the action of gravity, and the supernatant is automatically discharged through a pipeline. The primary sedimentation tank 2, the air flotation machine 4, the IC anaerobic reactor 6 and the secondary sedimentation tank 9 discharge the sludge to a sludge concentration tank 10 through pipelines respectively. Sludge in the sludge concentration tank 10 is subjected to filter pressing and dehydration from a sludge screw pump 11 to a sludge dehydrator 13, the dehydrated sludge is transported outside for harmless treatment, and filtrate enters the aeration regulating tank 3 through a return pipe, so that secondary pollution is avoided.
It will be apparent to those skilled in the art that modifications and variations can be made in the above-described embodiments, or some features of the invention may be substituted by equivalents, without departing from the spirit or scope of the invention.
Claims (6)
1. The utility model provides a chondroitin sulfate waste water treatment system, includes the pretreatment unit, strengthens biological treatment unit and the sludge dewatering processing unit that connect in order, its characterized in that: the pretreatment unit comprises a grating tank, a primary sedimentation tank, an aeration adjusting tank and an air floatation machine which are sequentially connected through pipelines; the enhanced biological treatment unit comprises a hydrolysis acidification tank, an IC anaerobic reactor, a facultative tank, an aerobic tank and a secondary sedimentation tank which are connected in sequence; the sludge dewatering treatment unit comprises a sludge concentration tank, a sludge flocculation dosing device, a sludge screw pump and a sludge dewatering machine; the grid pond is arranged at the foremost end of the system, is in common wall with the primary sedimentation pond and is connected with the primary sedimentation pond through a pipeline, and a rotary grid is arranged in the grid pond; the primary sedimentation tank is a vertical flow sedimentation tank, the center of the primary sedimentation tank is provided with a guide cylinder, the periphery of the primary sedimentation tank is provided with an overflow weir, the overflow weir and the aeration regulation tank share the same wall, and the primary sedimentation tank is connected through overflow holes; the aeration adjusting tank is provided with a floating ball liquid level meter and an aeration adjusting tank sewage lifting pump, and the bottom of the aeration adjusting tank is provided with a perforating aeration system which is connected with a blower through a pipeline; the sewage lifting pump of the aeration adjusting tank is connected with a water inlet of the air floating machine through a pipeline, the air floating machine adopts a high-efficiency dissolved air floating machine, the front end of the air floating machine is provided with two reaction areas, the two reaction areas are connected through overflowing holes, the first reaction area is connected with a PAC dosing device through a pipeline, the second reaction area is connected with a PAM dosing device through a pipeline, and stirring devices are arranged in the two reaction areas; a pipeline mixer is arranged on a connecting pipeline of the aeration adjusting tank and the air floatation machine and is connected with an alkali dosing device; the hydrolysis acidification tank is internally provided with a soft filler, a submersible stirrer and a hydrolysis acidification tank sewage lift pump; the sewage lifting pump of the hydrolysis acidification tank is connected with the water inlet of the IC anaerobic reactor through a pipeline, the water outlet of the IC anaerobic reactor is connected with the facultative tank through a pipeline, and a water distribution device, a sludge discharge device and an upper and a lower three-phase separators are arranged in the IC anaerobic reactor; the facultative tank, the aerobic tank and the secondary sedimentation tank are sequentially arranged adjacently and share the tank wall, overflowing holes are formed in the tank wall and are sequentially connected, soft fillers and a facultative tank tubular aeration system are arranged in the facultative tank, and the facultative tank tubular aeration system is connected with an air blower through a pipeline; the interior of the aerobic tank is provided with a soft filler and a mixed liquid reflux pump, and the bottom of the aerobic tank is provided with a microporous tubular aerator with a non-return device, and the microporous tubular aerator is connected with a roots blower through a pipeline; an inclined tube filler is arranged in the secondary sedimentation tank, and an overflow weir is arranged around the top of the secondary sedimentation tank; the primary sedimentation tank and the secondary sedimentation tank are provided with secondary sedimentation tank sludge pumps; one end of the sludge screw pump is communicated with the sludge concentration tank through a pipeline, the section of pipeline is also connected with a sludge flocculation dosing device through a dosing pipeline, and the other end of the sludge screw pump is communicated with the sludge dewatering machine; the sludge concentration tank is connected with sludge discharge pipelines of the primary sedimentation tank, the air flotation machine, the IC anaerobic reactor and the secondary sedimentation tank, and the upper-layer wastewater is connected with the aeration regulating tank through a water return pipe.
2. The chondroitin sulfate production wastewater treatment system of claim 1, wherein the alkali dosing device, the PAC dosing device, the PAM dosing device and the sludge flocculation dosing device are single-barrel two-pump skid-mounted devices, and a stirrer is mounted at the top of each barrel.
3. The chondroitin sulfate production wastewater treatment system of claim 1, wherein an online pH meter is installed on a connecting pipeline between the aeration adjusting tank and the air floatation machine.
4. The chondroitin sulfate production wastewater treatment system of claim 1, wherein an internal circulation system and an internal circulation system lift pump are installed in the IC anaerobic reactor.
5. The chondroitin sulfate production wastewater treatment system of claim 1, wherein the facultative tank tubular aeration system and the blower connecting pipeline are provided with electromagnetic valves.
6. The chondroitin sulfate production wastewater treatment system of claim 1, wherein the secondary sedimentation tank sludge pump is connected with the hydrolysis acidification tank, the facultative tank and the aerobic tank through pipelines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222016278.0U CN217972910U (en) | 2022-08-02 | 2022-08-02 | Chondroitin sulfate waste water treatment system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222016278.0U CN217972910U (en) | 2022-08-02 | 2022-08-02 | Chondroitin sulfate waste water treatment system |
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| CN217972910U true CN217972910U (en) | 2022-12-06 |
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| CN202222016278.0U Active CN217972910U (en) | 2022-08-02 | 2022-08-02 | Chondroitin sulfate waste water treatment system |
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- 2022-08-02 CN CN202222016278.0U patent/CN217972910U/en active Active
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