CN211255412U - Ammonia water and hydrogen peroxide wastewater treatment device - Google Patents
Ammonia water and hydrogen peroxide wastewater treatment device Download PDFInfo
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- CN211255412U CN211255412U CN201922264042.7U CN201922264042U CN211255412U CN 211255412 U CN211255412 U CN 211255412U CN 201922264042 U CN201922264042 U CN 201922264042U CN 211255412 U CN211255412 U CN 211255412U
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- hydrogen peroxide
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- fluorine
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- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 title claims abstract description 71
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 title claims abstract description 34
- 235000011114 ammonium hydroxide Nutrition 0.000 title claims abstract description 34
- 238000004065 wastewater treatment Methods 0.000 title claims abstract description 24
- QGZKDVFQNNGYKY-UHFFFAOYSA-N ammonia Natural products N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims abstract description 14
- 239000007789 gas Substances 0.000 claims abstract description 11
- 238000001179 sorption measurement Methods 0.000 claims abstract description 9
- 239000002351 wastewater Substances 0.000 claims description 27
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims description 22
- 229910052731 fluorine Inorganic materials 0.000 claims description 22
- 239000011737 fluorine Substances 0.000 claims description 22
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 10
- 229910052799 carbon Inorganic materials 0.000 claims description 10
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 7
- 239000003513 alkali Substances 0.000 claims description 7
- 229910052791 calcium Inorganic materials 0.000 claims description 7
- 239000011575 calcium Substances 0.000 claims description 7
- 238000010992 reflux Methods 0.000 claims description 6
- 238000005516 engineering process Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 17
- 238000006243 chemical reaction Methods 0.000 abstract description 9
- 238000007789 sealing Methods 0.000 abstract description 8
- 239000010865 sewage Substances 0.000 abstract description 8
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 abstract description 6
- 238000000354 decomposition reaction Methods 0.000 abstract description 6
- 238000006479 redox reaction Methods 0.000 abstract description 4
- 230000015556 catabolic process Effects 0.000 abstract 1
- 238000006731 degradation reaction Methods 0.000 abstract 1
- 235000013547 stew Nutrition 0.000 abstract 1
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 10
- 239000010802 sludge Substances 0.000 description 6
- 229910052757 nitrogen Inorganic materials 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229910001868 water Inorganic materials 0.000 description 5
- 206010021143 Hypoxia Diseases 0.000 description 4
- 239000003795 chemical substances by application Substances 0.000 description 4
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229910021529 ammonia Inorganic materials 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 241000894006 Bacteria Species 0.000 description 2
- 230000003139 buffering effect Effects 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 239000004568 cement Substances 0.000 description 2
- 239000013043 chemical agent Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000001546 nitrifying effect Effects 0.000 description 2
- 150000003839 salts Chemical class 0.000 description 2
- 210000002268 wool Anatomy 0.000 description 2
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 230000002378 acidificating effect Effects 0.000 description 1
- 238000007792 addition Methods 0.000 description 1
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 1
- 229910021418 black silicon Inorganic materials 0.000 description 1
- 239000011449 brick Substances 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006115 defluorination reaction Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000005188 flotation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 235000015097 nutrients Nutrition 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000012946 outsourcing Methods 0.000 description 1
- 230000033116 oxidation-reduction process Effects 0.000 description 1
- 239000001301 oxygen Substances 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- AJPJDKMHJJGVTQ-UHFFFAOYSA-M sodium dihydrogen phosphate Chemical compound [Na+].OP(O)([O-])=O AJPJDKMHJJGVTQ-UHFFFAOYSA-M 0.000 description 1
- 229910000162 sodium phosphate Inorganic materials 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 235000011149 sulphuric acid Nutrition 0.000 description 1
- 239000001117 sulphuric acid Substances 0.000 description 1
- 230000001988 toxicity Effects 0.000 description 1
- 231100000419 toxicity Toxicity 0.000 description 1
- 239000003053 toxin Substances 0.000 description 1
- 231100000765 toxin Toxicity 0.000 description 1
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- Water Treatment By Sorption (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
The utility model provides an ammonia water and hydrogen peroxide solution effluent treatment plant belongs to sewage treatment technical field. The device comprises at least two buffer tanks connected with workshop process machines, wherein a sealing cover plate is arranged at the top of each buffer tank and connected with an alkaline gas adsorption tower, the buffer tanks are connected with a wastewater treatment station, ammonia water and hydrogen peroxide from the workshop process machines are collected and then are discharged into one of the buffer tanks, standing reaction is carried out, and gas generated by reaction is discharged into the air after being treated by the alkaline gas adsorption tower. The utility model discloses a buffer pool reaction tank that stews 20 days of time, utilize decomposition and the redox reaction of hydrogen peroxide and aqueous ammonia, degradable ammonia nitrogen more than 90%, hydrogen peroxide degradation more than 99.99%.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment, a aqueous ammonia and hydrogen peroxide solution effluent treatment plant is related to.
Background
In the conventional process for producing black silicon wool making from battery plates, the most important characteristic is that 28% of NH4OH and 31% of H2O2 are used as wool making agents in the process, and the using amount is large, so that the process wastewater contains high-concentration ammonia water and hydrogen peroxide wastewater.
At present, the adopted process method in the wastewater treatment process is generally as follows: the ammonia water and hydrogen peroxide wastewater is discharged to an HF wastewater adjusting tank, mixed, then passes through a defluorination reaction tank, is catalyzed by hydrogen peroxide, and is subjected to biological denitrification through a wastewater biochemical system (ANO process), so that the wastewater reaches the standard and is finally discharged.
The common defects of the existing wastewater treatment process are as follows: NH is generated after the hydrogen peroxide and ammonia water wastewater is discharged into an HF wastewater adjusting tank3the-N is immediately stabilized into salts and has short retention time, the concentration of the hydrogen peroxide is diluted, and all ammonia nitrogen finally needs biochemical treatment, which brings the following result that ① the hydrogen peroxide wastewater is acidic in the water quality of the HF wastewater conditioning tank to cause H2O2The decomposition is slow, a medicament and a catalyst are added for decomposition, otherwise, hydrogen peroxide enters a biochemical system to consume a carbon source and kill nitrifying and denitrifying bacteria, ② ammonia water can be stably transformed into salt in an acid regulating tank, all ammonia nitrogen needs to be nitrified and denitrified by the biochemical system, the biochemical system needs to be expanded, extra methanol needs to be purchased as the carbon source due to the fact that solar wastewater does not contain organic wastewater, C: N needs to be more than 4 to stably deaminate nitrogen, ③ the biological denitrifying bacteria have strong requirements on water temperature, ORP (oxidation reduction potential), unit water sludge quantity MLVSS, water toxin, nutrient proportion of wastewater and the like, and therefore the system is stable in operationThe method has the problems that ④ biological NH3-N nitrogen removal requires nitrification and denitrification, sludge is produced uniformly, the sludge production amount is large, sludge discharge is required regularly, biochemical sludge is generated, chemical ammonia removal is required in biochemical pretreatment when the concentration of ⑤ ammonia water is high, chemical agents are consumed, the reflux amount of nitrifying liquid is 300% for ensuring that the total nitrogen of effluent reaches the standard in biochemical treatment, the reflux amount of sludge is 50-100%, and the energy consumption is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims at the above problem, provide a device of aqueous ammonia and hydrogen peroxide solution waste water treatment.
In order to achieve the above purpose, the utility model adopts the following technical proposal:
the utility model provides an ammonia water and hydrogen peroxide solution waste water treatment's device, includes two at least buffer pools of connecting workshop technology board, buffer pool top be equipped with sealed apron, sealed apron is connected with alkaline gas adsorption tower, the waste water treatment station is connected to the buffer pool.
Further, the waste water treatment station including the fluorine-containing waste water equalizing basin of connecting the buffer pool, fluorine-containing waste water equalizing basin connects fluorine-containing processing system, and fluorine-containing processing system connects biochemical pretreatment system, and biochemical pretreatment system connects biochemical treatment oxygen deficiency pond, and biochemical treatment oxygen deficiency pond connects biochemical treatment aerobic pond, and biochemical treatment aerobic pond connects total row of mouth.
Furthermore, the bottom of the biochemical treatment aerobic tank is connected with a biochemical treatment anoxic tank through a reflux pump, the fluorine-containing treatment system is connected with a calcium source dispenser and a pH value regulator, the biochemical treatment anoxic tank is connected with a carbon source dispenser, and the biochemical treatment aerobic tank is connected with an alkali dispenser.
Compared with the prior art, the utility model has the advantages of:
through the standing reaction of the buffer tank, the ammonia nitrogen can be degraded by more than 90 percent and the hydrogen peroxide can be degraded by more than 99.99 percent by utilizing the decomposition and redox reaction of the hydrogen peroxide and the ammonia water.
Additional advantages, objects, and features of the invention will be set forth in part in the description which follows and in part will become apparent to those having ordinary skill in the art upon examination of the following or may be learned from practice of the invention.
Drawings
FIG. 1 is a schematic diagram of an apparatus for treating wastewater containing ammonia water and hydrogen peroxide.
In the figure: the system comprises a workshop process machine table 1, a buffer tank 2, a sealing cover plate 3, an alkaline gas adsorption tower 4, a wastewater treatment station 5, a fluorine-containing wastewater adjusting tank 6, a fluorine-containing treatment system 7, a biochemical pretreatment system 8, a delivery pump 9, a biochemical treatment anoxic tank 10, a biochemical treatment aerobic tank 11, a main discharge port 12, a reflux pump 13, a calcium source dispenser 14, a pH value regulator 15, a carbon source dispenser 16 and an alkali dispenser 17.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings.
The utility model provides an ammonia water and hydrogen peroxide solution waste water treatment's device, includes two at least buffer pool 2 of connecting workshop technology board 1, 2 tops of buffer pool be equipped with sealed apron 3, sealed apron 3 is connected with alkaline gas adsorption tower 4, waste water treatment station 5 is connected to buffer pool 2.
The buffer pool 2 can be excavated on site, bricks and cement are added to form a rectangular pool, and the inner wall of the pool, namely the surface of the cement, is coated with epoxy resin to play a role in corrosion resistance. Or directly adopting a plastic cylinder with large size and large volume sold on the market, and selecting the type according to the amount of the treated wastewater. The size and the shape of the sealing end cover 3 are matched with those of the buffer pool 2, a rubber ring is arranged in the sealing cover plate 3, a sealing groove matched with the sealing ring is arranged at the top of the buffer pool 2 for sealing, and the sealing cover plate is made of plastics.
The wastewater treatment station 5 is a prior art, and for example, chinese patents CN201720545666.4 and CN201220318328.4 both disclose wastewater treatment systems containing fluorine, either of which can be used to treat wastewater containing fluorine. In this embodiment, waste water treatment station 5 is including the fluorine-containing waste water equalizing basin 6 of connecting buffering pond 2, buffering pond 2 passes through delivery pump 9 and connects fluorine-containing waste water equalizing basin 6, fluorine-containing waste water equalizing basin 6 is the pond or the plastics storage tank of digging, fluorine-containing processing system 7 is connected to fluorine-containing waste water equalizing basin 6, biochemical pretreatment system 8 is connected to fluorine-containing processing system 7, biochemical treatment oxygen deficiency pond 10 is connected to biochemical pretreatment system 8, biochemical treatment oxygen deficiency pond 10 connects biochemical treatment aerobic pond 11, total row of mouth 12 is connected to biochemical treatment aerobic pond 11.
In this embodiment, the AAO method is used to treat wastewater, the biochemical pretreatment system 8 is an oil separation tank and an air flotation tank which are arranged in series, or a commercially available biochemical pretreatment system can be directly selected, and the biochemical treatment tank 9 is also the prior art, for example, a sewage biochemical treatment tank disclosed in chinese patent No. cn201820390309.x, or a co-constructed sewage biochemical treatment tank CN201620155824.0 can be used,
the bottom of the biochemical treatment aerobic pool 11 is connected with a biochemical treatment anoxic pool 10 through a reflux pump 13, the fluorine-containing treatment system 7 is connected with a calcium source dispenser 14 and a pH value regulator 15, the biochemical treatment anoxic pool 10 is connected with a carbon source dispenser 16, and the biochemical treatment aerobic pool 11 is connected with an alkali dispenser 17.
The calcium source dispenser 14, the pH value regulator 15, the carbon source dispenser 16 and the alkali dispenser 17 in this embodiment may all adopt a structure of a storage tank and a pump, and the calcium source dispenser, the pH value regulator 15, the carbon source dispenser 16 and the alkali dispenser 17 are respectively connected to a system or a pool by conveying the calcium source dispenser, the pH value regulator, the carbon source dispenser and the alkali dispenser.
The buffer pool 2 of this embodiment is used for storing the mixed sewage of aqueous ammonia and hydrogen peroxide, after mixing, the mixture is stood for a period of time and then is discharged into the fluorine-containing wastewater adjusting pool 6, at the in-process of stewing, aqueous ammonia and hydrogen peroxide react and generate nitrogen and water, hydrogen peroxide decomposes and generates oxygen under the alkaline environment of aqueous ammonia, the ammonia that the aqueous ammonia volatilizes is adsorbed through the alkaline gas adsorption tower 4, the air is discharged into the atmosphere after being qualified, the alkaline gas adsorption tower 4 can directly adopt the products sold in the market, adsorb with sulphuric acid. Through the standing reaction of the buffer tank 2 for 20-27 days, the ammonia nitrogen can be degraded by more than 90 percent by utilizing the decomposition and redox reaction of hydrogen peroxide and ammonia water, the hydrogen peroxide can be degraded by more than 99.99 percent without the daily operation consumption of adding additional chemical agents, catalysts and the like, and the ammonia water and the hydrogen peroxide are subjected to the redox reaction under the alkaline condition to generate N2In advance, denitrification is carried outThe ammonia nitrogen concentration entering the biochemical treatment is reduced, and the operating cost of the outsourcing carbon source is reduced.
The utility model discloses a theory of operation is:
ammonia water and hydrogen peroxide from a workshop process machine 1 are collected and then discharged into one of the buffer tanks 2, standing for reaction is carried out, and gas generated by the reaction is discharged into the air after being treated by an alkaline gas adsorption tower 4.
The ammonia water and the hydrogen peroxide which enter one of the buffer tanks 2 are subjected to concentration detection in advance, and are discharged into the buffer tank after being measured, so that the molar ratio of the ammonia water and the hydrogen peroxide which are discharged into the buffer tank 2 is between 1.9 and 2.1:3, and the ammonia water and the hydrogen peroxide are fully reacted in the range. And (3) metering and discharging redundant ammonia water or hydrogen peroxide into another buffer tank 2, and also enabling the molar ratio of the ammonia water and the hydrogen peroxide discharged into the buffer tank 2 to be 1.9-2.1: 3. The standing reaction time is at least 20 days, the reaction is kept standing for 20 days, the content of the converted ammonia into nitrogen is more than 90 percent, and the decomposition rate of the hydrogen peroxide is more than 99.99 percent. The standing time is preferably 20 to 27 days.
The method of the embodiment greatly reduces the cost of biological pretreatment and saves H2O2Treatment agent (Na)2SO3) Cost, and saving ammonia water pretreatment agent (MgCl)2、NaH2PO4) Cost, reduced biochemical treatment load, and reduced biochemical denitrification agent (CH)3OH) cost, and also reduces the energy consumption of biochemical operation, simultaneously, the toxicity index of the biochemical influent hydrogen peroxide is effectively controlled, the surrounding air environment of the wastewater treatment station is improved and purified, the effluent index of the wastewater treatment station is effectively controlled, the treatment cost and the operation energy consumption of the wastewater treatment station are greatly reduced, and the workshop production and the efficient cost benefit are ensured.
After the sewage generated by the reaction of the ammonia water and the hydrogen peroxide enters the wastewater treatment station 5, the sewage can be treated by adopting a conventional sewage treatment method, and details are not repeated here.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (3)
1. The utility model provides an apparatus for aqueous ammonia and hydrogen peroxide solution waste water treatment, includes buffer pool (2) of two at least connection workshop technology machines (1), its characterized in that, buffer pool (2) top be equipped with sealed apron (3), sealed apron (3) are connected with alkaline gas adsorption tower (4), waste water treatment station (5) is connected in buffer pool (2).
2. The ammonia water and hydrogen peroxide wastewater treatment device according to claim 1, wherein the wastewater treatment station (5) comprises a fluorine-containing wastewater adjusting tank (6) connected with the buffer tank (2), the fluorine-containing wastewater adjusting tank (6) is connected with a fluorine-containing treatment system (7), the fluorine-containing treatment system (7) is connected with a biochemical pretreatment system (8), the biochemical pretreatment system (8) is connected with a biochemical treatment anoxic tank (10), the biochemical treatment anoxic tank (10) is connected with a biochemical treatment aerobic tank (11), and the biochemical treatment aerobic tank (11) is connected with a general discharge port (12).
3. The ammonia water and hydrogen peroxide wastewater treatment device according to claim 2, wherein the bottom of the biochemical treatment aerobic tank (11) is connected with the biochemical treatment anoxic tank (10) through a reflux pump (13), the fluorine-containing treatment system (7) is connected with a calcium source dispenser (14) and a pH value regulator (15), the biochemical treatment anoxic tank (10) is connected with a carbon source dispenser (16), and the biochemical treatment aerobic tank (11) is connected with an alkali dispenser (17).
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| CN201922264042.7U CN211255412U (en) | 2019-12-16 | 2019-12-16 | Ammonia water and hydrogen peroxide wastewater treatment device |
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| CN201922264042.7U CN211255412U (en) | 2019-12-16 | 2019-12-16 | Ammonia water and hydrogen peroxide wastewater treatment device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110835154A (en) * | 2019-12-16 | 2020-02-25 | 天合光能股份有限公司 | Ammonia water and hydrogen peroxide wastewater treatment device and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110835154A (en) * | 2019-12-16 | 2020-02-25 | 天合光能股份有限公司 | Ammonia water and hydrogen peroxide wastewater treatment device and method |
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