CN210656560U - Phenol-containing sewage treatment device - Google Patents
Phenol-containing sewage treatment device Download PDFInfo
- Publication number
- CN210656560U CN210656560U CN201920549755.5U CN201920549755U CN210656560U CN 210656560 U CN210656560 U CN 210656560U CN 201920549755 U CN201920549755 U CN 201920549755U CN 210656560 U CN210656560 U CN 210656560U
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- tank
- phenol
- pipeline
- acid
- sewage
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- Expired - Fee Related
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- 239000010865 sewage Substances 0.000 title claims abstract description 35
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol Chemical compound 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- 238000004062 sedimentation Methods 0.000 claims abstract description 20
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O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 abstract description 3
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- 238000005039 chemical industry Methods 0.000 abstract description 2
- 238000011109 contamination Methods 0.000 abstract description 2
- 238000003795 desorption Methods 0.000 abstract description 2
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- 238000006396 nitration reaction Methods 0.000 abstract description 2
- 239000005416 organic matter Substances 0.000 abstract description 2
- 239000003153 chemical reaction reagent Substances 0.000 description 4
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- 238000005374 membrane filtration Methods 0.000 description 2
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- 239000006227 byproduct Substances 0.000 description 1
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Abstract
The utility model discloses a contain phenol sewage treatment plant belongs to chemical industry sewage treatment plant technical field, including solid impurity filter grid, acid-base equalizing basin, catch basin, coagulation reaction sedimentation tank and blow the tower of taking off. The utility model discloses the granule that is difficult to deposit in making sewage can polymerize and form the colloid mutually, then combine to form bigger flocculating constituent with the impurity in the water, then get into liquid gas phase and blow off tower desorption aquatic dissolved gas and certain volatile substance, go out a small amount of amino acids impurity through denitrification pond and nitration pond after the three-phase separation, carry out heavy water separation and sterilization process through nanofiltration device and disinfection pond at last, the treatment effeciency is high, safety ring protects no secondary pollution, the organic matter that contains phenol sewage treatment device and can not decompose biodegradable in the mud into filth materials such as carbon dioxide, and do not in time disinfect behind nanofiltration reaction and just directly discharge, lead to water bacterial contamination's technical problem easily.
Description
Technical Field
The utility model belongs to the technical field of chemical industry sewage treatment plant, concretely relates to contain phenol sewage treatment plant.
Background
The phenol compounds are important chemical raw materials or intermediates, and are byproducts produced by a plurality of industrial and mining enterprises. The phenol-containing sewage is directly discharged, is harmful to human, aquatic organisms and agriculture, is one of toxic and harmful sewage which is mainly solved in the water pollution control in China, and can be discharged only after phenol removal is carried out to meet the environmental protection requirement. The microorganism treatment of sewage can utilize aerobic bacteria or anaerobic bacteria. In the biochemical treatment of phenol, basically, aerobic bacteria are used, and the biochemical treatment of phenol by aerobic bacteria is to decompose organic matters in sewage and oxidize the organic matters into inorganic matters by using the own metabolic process of aerobic microbial groups, so that the sewage is purified. The phenol-containing sewage treatment device in the prior art can not decompose biodegradable organic matters in sludge into pollutant substances such as carbon dioxide and the like, and can be directly discharged without timely disinfection after nanofiltration reaction, thereby easily causing bacterial pollution of water.
Disclosure of Invention
(1) Technical scheme
In order to overcome the defects of the prior art, the utility model provides a phenol-containing sewage treatment device, which comprises a solid impurity filtering grid, an acid-base adjusting tank, a water collecting tank, a coagulation sedimentation tank and a blowing-off tower, wherein phenol-containing sewage passes through the solid impurity filtering grid and then enters the acid-base adjusting tank, the acid-base adjusting tank is connected with the coagulation sedimentation tank through a pipeline, the coagulation sedimentation tank is connected with the blowing-off tower through a pipeline, the blowing-off tower sequentially passes through a pipeline to be connected with a secondary sedimentation tank, a nitrification tank, a denitrification tank and an up-flow anaerobic sludge bed reactor in series, the up-flow anaerobic sludge bed reactor is connected with a medicament reaction kettle through a pipeline, a liquid outlet at the upper end of the medicament reaction kettle is connected with an oxidation tank through a pipeline, a liquid outlet of the oxidation tank is sequentially connected with a membrane bioreactor and a nanofiltration device through a pipeline, and a liquid outlet, and a reclaimed water reuse connecting pipe and an outer discharge pipe are arranged on the disinfection tank.
Further, a heat preservation and heating system is arranged on the upflow anaerobic sludge blanket reactor, and a gas phase separation pipe on the upflow anaerobic sludge blanket reactor is connected with the denitrification tank.
Further, the bottom of the secondary sedimentation tank is connected with a sludge concentration tank, and the sludge concentration tank connects the bottom sludge with a filter press through a conveying auger.
Furthermore, the upper part of the sludge concentration tank is connected with the acid-base adjusting tank through a pipeline, and water suction pumps are arranged on the pipelines of the sludge concentration tank and the acid-base adjusting tank.
Furthermore, a return pipe is arranged between the nitrification tank and the denitrification tank, and an electric ball valve is arranged on the return pipe.
The utility model discloses a theory of operation: removing large-particle solid impurities from high-concentration phenol-containing sewage through a solid impurity filtering grid, conveying the sewage to an acid-base adjusting tank, adjusting the pH of the sewage to be 7-8, then feeding the sewage into a coagulation reaction sedimentation tank, enabling particles which are difficult to precipitate in the water to be mutually polymerized to form colloid, then combining the colloid with impurities in a water body to form a larger flocculating constituent, then feeding a liquid-gas phase into a stripping tower to remove dissolved gas and certain volatile substances in the water, adding a proper amount of reaction reagent aiming at different phenol-containing sewage into a medicament reaction kettle, feeding the mixture into an up-flow anaerobic sludge bed reactor to perform three-phase separation, removing a small amount of amino acid impurities through a denitrification tank and a nitrification tank after the three-phase separation, finally precipitating through a secondary sedimentation tank, feeding the mixture into a membrane bioreactor to perform membrane filtration, and performing heavy water separation and sterilization treatment through a nanofiltration device and a disinfection tank, thereby achieving the emission standard.
(2) Advantageous effects
The utility model has the advantages that: compared with the prior art, the utility model discloses the granule that is difficult to deposit in making sewage can polymerize and form the colloid mutually, then combine to form bigger flocculating constituent with the impurity in the water, then get into liquid gas phase and blow off tower desorption aquatic dissolved gas and certain volatile substance, go out a small amount of amino acids impurity through denitrification pond and nitration pond after the three-phase separation, carry out heavy water separation and sterilization process through nanofiltration device and disinfection pond at last, the treatment effeciency is high, safety and environmental protection do not have secondary pollution, but solved prior art's phenol-containing sewage treatment plant can not decompose into filth materials such as carbon dioxide with biodegradable's organic matter in the mud, and not in time just directly discharge the disinfection after nanofiltration reaction, lead to water bacterial contamination's technical problem easily.
Drawings
FIG. 1 is a schematic view of a phenol-containing wastewater treatment apparatus.
Detailed Description
The present invention will be further described with reference to the following examples.
Example one
Referring to fig. 1, the present embodiment provides a phenol-containing sewage treatment apparatus, which includes a solid impurity filtering grid 1, an acid-base adjusting tank 2, a water collecting tank 3, a coagulation sedimentation tank 4 and an air stripping tower 5, wherein phenol-containing sewage enters the acid-base adjusting tank 2 after passing through the solid impurity filtering grid 1, the acid-base adjusting tank 2 is connected to the coagulation sedimentation tank 4 through a pipeline, and the coagulation sedimentation tank 4 is connected to the air stripping tower 5 through a pipeline, and is characterized in that the air stripping tower 5 sequentially passes through a secondary sedimentation tank 10, a nitrification tank 9, a denitrification tank 8 and an upflow anaerobic sludge bed reactor 7 connected in series through a pipeline, the upflow anaerobic sludge bed reactor 7 is connected to a reagent reaction kettle 6 through a pipeline, a liquid outlet at the upper end of the reagent reaction kettle 6 is connected to an oxidation tank 11 through a pipeline, and a liquid outlet of the oxidation tank 11 is sequentially connected to a membrane bioreactor 12 and a nanofiltration device 13 through a pipeline, a liquid outlet pipeline of the nanofiltration device 13 is connected with a disinfection tank 14, and a reclaimed water recycling connecting pipe and an outer discharge pipe are arranged on the disinfection tank 14.
In this embodiment, a heat preservation and heating system 71 is arranged on the upflow anaerobic sludge bed reactor 7, a gas phase separation pipe on the upflow anaerobic sludge bed reactor 7 is connected with the denitrification tank 8, the bottom of the secondary sedimentation tank 10 is connected with a sludge concentration tank 15, the sludge concentration tank 15 connects bottom sludge with a filter press 16 through a conveying auger, the upper part of the sludge concentration tank 15 is connected with the acid-base adjusting tank 2 through a pipeline, water suction pumps are arranged on the pipelines of the sludge concentration tank 15 and the acid-base adjusting tank 2, a return pipe 81 is arranged between the nitrification tank 9 and the denitrification tank 8, and an electric ball valve is arranged on the return pipe. In the embodiment, large-particle solid impurities in high-concentration phenol-containing sewage are removed through a solid impurity filtering grid 1, the sewage is conveyed to an acid-base adjusting tank 2, the pH of the sewage is adjusted to be between 7 and 8, then the sewage enters a coagulation reaction sedimentation tank 4, particles which are difficult to precipitate in the water can be mutually polymerized to form colloid, then the colloid is combined with impurities in a water body to form a larger flocculating constituent, then a liquid-gas phase enters a stripping tower 5 to remove dissolved gas and certain volatile substances in the water, a medicament reaction kettle 6 is used for adding a proper amount of reaction reagent aiming at different phenol-containing sewage, then the sewage enters an up-flow anaerobic sludge bed reactor 7 to carry out three-phase separation, a small amount of amino acid impurities are removed through a denitrification tank 8 and a nitrification tank 9 after the three-phase separation, finally the sewage is precipitated through a secondary sedimentation tank 10 and then enters a membrane bioreactor 12 to carry out membrane filtration, and then heavy water separation and sterilization treatment are carried out, thereby achieving the emission standard.
The above-mentioned embodiments only represent the preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several changes, modifications and substitutions can be made, which are all within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (5)
1. A phenol-containing sewage treatment device comprises a solid impurity filtering grid (1), an acid-base adjusting tank (2), a water collecting tank (3), a coagulation reaction sedimentation tank (4) and a stripping tower (5), wherein phenol-containing sewage passes through the solid impurity filtering grid (1) and then enters the acid-base adjusting tank (2), the acid-base adjusting tank (2) is connected with the coagulation reaction sedimentation tank (4) through a pipeline, the coagulation reaction sedimentation tank (4) is connected with the stripping tower (5) through a pipeline, the phenol-containing sewage treatment device is characterized in that the stripping tower (5) is sequentially connected with a secondary sedimentation tank (10), a nitrification tank (9), a denitrification tank (8) and an up-flow anaerobic sludge bed reactor (7) through pipelines, the up-flow anaerobic sludge bed reactor (7) is connected with a medicament reaction kettle (6) through a pipeline, and an upper end liquid outlet of the medicament reaction kettle (6) is connected with an oxidation tank (11) through a pipeline, the liquid outlet of oxidation pond (11) pipe connection membrane bioreactor (12) and nanofiltration device (13) in proper order, the liquid outlet pipe connection disinfection pond (14) of nanofiltration device (13), be equipped with reuse of reclaimed water takeover and outer calandria on disinfection pond (14).
2. The phenol-containing wastewater treatment device according to claim 1, wherein: a heat preservation and heating system (71) is arranged on the upflow anaerobic sludge blanket reactor (7), and a gas phase separation pipe on the upflow anaerobic sludge blanket reactor (7) is connected with the denitrification tank (8).
3. The phenol-containing wastewater treatment device according to claim 1, wherein: the bottom of the secondary sedimentation tank (10) is connected with a sludge concentration tank (15), and the sludge concentration tank (15) connects sludge at the bottom with a filter press (16) through a conveying auger.
4. The apparatus according to claim 3, wherein: the upper part of the sludge concentration tank (15) is connected with the acid-base adjusting tank (2) through a pipeline, and a water suction pump is arranged on the pipeline of the sludge concentration tank (15) and the pipeline of the acid-base adjusting tank (2).
5. The phenol-containing wastewater treatment device according to claim 1, wherein: a return pipe (81) is arranged between the nitrification tank (9) and the denitrification tank (8), and an electric ball valve is arranged on the return pipe.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920549755.5U CN210656560U (en) | 2019-04-22 | 2019-04-22 | Phenol-containing sewage treatment device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920549755.5U CN210656560U (en) | 2019-04-22 | 2019-04-22 | Phenol-containing sewage treatment device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210656560U true CN210656560U (en) | 2020-06-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920549755.5U Expired - Fee Related CN210656560U (en) | 2019-04-22 | 2019-04-22 | Phenol-containing sewage treatment device |
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| Country | Link |
|---|---|
| CN (1) | CN210656560U (en) |
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2019
- 2019-04-22 CN CN201920549755.5U patent/CN210656560U/en not_active Expired - Fee Related
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