CN217578598U - AO + hydroxyl radical aqueous solution all-in-one - Google Patents
AO + hydroxyl radical aqueous solution all-in-one Download PDFInfo
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- CN217578598U CN217578598U CN202220223996.2U CN202220223996U CN217578598U CN 217578598 U CN217578598 U CN 217578598U CN 202220223996 U CN202220223996 U CN 202220223996U CN 217578598 U CN217578598 U CN 217578598U
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Abstract
The utility model provides an AO + hydroxyl radical aqueous solution all-in-one belongs to sewage treatment device technical field. The all-in-one machine comprises a water inlet (1), a water outlet (2), a grating device (3), an anaerobic hydrolysis acidification pool (4), a biological trickling filter (5), a sedimentation pool (6), a hydroxyl radical treatment pool (7) and a reclaimed water pool (8); the water inlet (1) is connected with the grating device (3), and the water outlet (2) is connected with the middle water pool (8); the anaerobic hydrolysis acidification tank (4) is connected with the biological trickling filter (5), and the sedimentation tank (6) is connected with the hydroxyl radical treatment tank (7). The utility model discloses go out the effectual N and the P element that remain the plant needs of water after the processing, turn into inorganic nitrogen with organic nitrogen, make things convenient for the plant to absorb and the effectual COD that has reduced.
Description
Technical Field
The utility model belongs to the technical field of sewage treatment device, especially, relate to a AO + hydroxyl free radical aqueous solution all-in-one.
Background
The resource utilization of sewage refers to that the sewage reaches a specific water quality standard after harmless treatment, is used as reclaimed water to replace conventional water resources, is used for industrial production, resident life, ecological water replenishing, agricultural irrigation and the like, and extracts other resources and energy sources from the sewage.
The hydroxyl radical (. OH) has extremely high oxidation potential (2.80 eV), so that the hydroxyl radical has extremely strong oxidation capacity, can generate rapid chain reaction with most organic pollutants, and can not selectively oxidize harmful substances into CO2, H2O or mineral salts, thereby having no secondary pollution. Many researchers at home and abroad carry out research on the organic wastewater treatment by OH. The ways for generating OH are more, and the Fenton method, the oxidation flocculation method, the ozone method, the ultrasonic degradation method and the photocatalysis method are mainly adopted. In recent years, the electrochemical method for generating OH has been greatly developed to treat organic wastewater, and the method has great effect on degradation and decoloration.
The inventor finds that the Chinese utility model CN215161801U provides a water treatment system designed based on a filtration and purification technology and a hydroxyl radical disinfection technology, which can effectively remove impurities and harmful organisms in tap water or well water, improve water quality, provide a hydroxyl radical aqueous solution and purified drinking water, and meet the use requirements of different occasions.
However, in most cases, the rural domestic sewage is rich in harmful substances, which is not beneficial to purifying into drinking water, and certainly not directly used for other irrigation purposes. However, rural domestic sewage contains a lot of nutrients such as nitrogen and phosphorus, and how to treat the rural domestic sewage and retain the nutrients required by plants to a large extent, so that the treated sewage is used for farmland irrigation or greening irrigation, and the technical problem concerned by technical personnel in the field is solved.
SUMMERY OF THE UTILITY MODEL
In order to solve the technical problem, the utility model provides a AO + hydroxyl radical aqueous solution all-in-one, the all-in-one includes water inlet and delivery port, the all-in-one still includes grid device, anaerobic hydrolysis acidification pond, bio-trickling filter, sedimentation tank, hydroxyl radical treatment pond and pond.
Through the technical scheme of the utility model, can realize the integrated process flow of "grid-anaerobic hydrolytic acidification-biological trickling filter-sediment-hydroxyl free radical treatment-pond in the middle of the country-agricultural irrigation" to get rid of COD after handling rural domestic sewage through AO + hydroxyl free radical aqueous solution all-in-one, with harmful substance oxidation to CO2, H2O or mineral salt, turn into organic nitrogen, P inorganic matter, the required nutrient composition of plant is remain to great degree, the sewage after the processing is as field irrigation or afforestation irrigation use.
In the utility model, AO is the abbreviation of Anaerobic Oxic, AO process is also called Anaerobic aerobic process, A (Anaerobic) is Anaerobic section for removing nitrogen and phosphorus; o (Oxic) is an aerobic section for removing organic matter from water. Its advantages are degradation of organic pollutant, and certain function of removing N and P, and use of anaerobic hydrolysis as pretreatment of activated sludge. The integration of AO + hydroxyl radical aqueous solution is the process of combining the two.
The utility model has the following concrete technical scheme:
an AO + hydroxyl radical aqueous solution all-in-one machine comprises a water inlet and a water outlet,
the all-in-one machine also comprises a grating device, an anaerobic hydrolysis acidification pool, a biological trickling filter, a sedimentation pool, a hydroxyl radical treatment pool and a reclaimed water pool;
the water inlet is connected with the grating device, and the water outlet is connected with the middle water pool;
the anaerobic hydrolysis acidification tank is connected with the biological trickling filtration tank, and the sedimentation tank is connected with the hydroxyl radical treatment tank.
The grating device is a multilayer grating layer, and the multilayer grating layer comprises horizontal grating plates and inclined grating plates.
The anaerobic hydrolysis acidification tank comprises a reaction zone, and the reaction zone is provided with a water inlet pipe and a water distribution pipe.
The reaction zone is provided with at least one water inlet pipe and a plurality of water distribution sub-pipes;
each water distribution sub-pipe is provided with a plurality of water distribution holes.
The biological trickling filter is connected with a reaction area of the anaerobic hydrolysis acidification pool;
the bottom of the biological trickling filter is connected with a biological nutrient solution storage tank.
The lower end of the sedimentation tank is connected with the biological trickling filter, and the upper end of the sedimentation tank is connected with the hydroxyl radical treatment tank.
The hydroxyl radical treatment pool comprises a hydroxyl radical aqueous solution generating device and a hydroxyl radical aqueous solution storage tank;
the hydroxyl radical aqueous solution generating device is connected with the hydroxyl radical aqueous solution storage tank.
The hydroxyl radical treatment pool also comprises a water mixer;
the water mixer is connected with the upper end of the sedimentation tank and is connected to the hydroxyl radical aqueous solution storage tank through an electromagnetic valve.
The hydroxyl radical treatment pool also comprises an ozone generating device.
The upper part of the biological trickling filter is provided with a biological filler layer.
The utility model discloses an advantage includes at least:
1. the treated water can be used for farmland irrigation or greening irrigation;
2. the treated effluent effectively retains N and P required by plants;
3. the hydroxyl radical aqueous solution all-in-one machine can kill harmful pests and bacteria in water;
4. organic nitrogen is converted into inorganic nitrogen, so that the absorption by plants is facilitated;
5. effectively reduces COD.
Further advantages of the present invention will be apparent from the detailed description of the preferred embodiments in conjunction with the drawings attached hereto.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a block diagram of the AO + hydroxyl radical aqueous solution all-in-one machine according to an embodiment of the present invention;
FIG. 2 (a) -FIG. 2 (b) are schematic diagrams of the structure of the grid device used in the AO + hydroxyl radical aqueous solution all-in-one machine shown in FIG. 1;
FIG. 3 is a schematic diagram of the anaerobic hydrolysis acidification tank used in the AO + hydroxyl radical aqueous solution all-in-one machine of FIG. 1;
FIG. 4 is a schematic view of a connection structure of an anaerobic hydrolysis acidification tank and a biological trickling filter used in the AO + hydroxyl radical aqueous solution all-in-one machine shown in FIG. 1;
FIG. 5 is a schematic diagram of the structural combination of the hydroxyl radical treatment cell used in the AO + hydroxyl radical aqueous solution all-in-one machine shown in FIG. 1.
Detailed Description
The following description of the present invention will be made with reference to the accompanying drawings.
Referring to fig. 1, it is a block structure diagram of an AO + hydroxyl radical aqueous solution all-in-one machine according to an embodiment of the present invention.
In fig. 1, the all-in-one machine comprises a water inlet 1 and a water outlet 2, and is characterized in that:
the all-in-one machine also comprises a grating device 3, an anaerobic hydrolysis acidification pool 4, a biological trickling filter 5, a sedimentation pool 6, a hydroxyl radical treatment pool 7 and a reclaimed water pool 8;
the water inlet 1 is connected with the grating device 3, and the water outlet 2 is connected with the middle water pool 8;
the anaerobic hydrolysis acidification tank 4 is connected with the biological trickling filter 5, and the sedimentation tank 6 is connected with the hydroxyl radical treatment tank 7.
It will be appreciated that the intermediate water tank is the final treated intermediate water storage tank, and the quality level of the intermediate water is higher than that of sewage, but lower than that of drinking water, and can be used for agricultural irrigation.
Specifically, the water inlet, the grating device, the anaerobic hydrolysis acidification tank, the biological trickling filter, the sedimentation tank, the hydroxyl radical treatment tank, the reclaimed water tank and the water outlet are sequentially connected in structural connection so as to complete grating-anaerobic hydrolysis acidification-biological trickling filter-sedimentation-hydroxyl radical treatmentThe integrated process flow of the reclaimed water pool and agricultural irrigation is realized, so that the rural domestic sewage is treated by the AO + hydroxyl radical aqueous solution all-in-one machine to remove COD, and harmful substances are oxidized into CO 2 、H 2 O or mineral salt, organic nitrogen and P are converted into inorganic matters, nutrient components required by plants are reserved to a large extent, and the treated sewage is used for farmland irrigation or greening irrigation.
On the basis of FIG. 1, refer to FIG. 2 (a) -FIG. 2 (b), which are schematic structural diagrams of the grid device used in the AO + hydroxyl radical aqueous solution all-in-one machine shown in FIG. 1.
The grating device 3 is a multi-layer grating layer 31, and the multi-layer grating layer 31 includes a horizontal grating plate 311 and an inclined grating plate 312.
Fig. 2 (a) shows that the multi-layered grid layer includes horizontal grid plates 311 and inclined grid plates 312, and fig. 2 (b) shows the multi-layered grid layer 31 constituted by the horizontal grid plates 311 and the inclined grid plates 312 as a whole.
Based on the structures of the figures 2 (a) -2 (b), in the AO process, the sewage is lifted to an anaerobic hydrolysis acidification tank after being removed with larger impurities by a plurality of layers of grid layers.
Meanwhile, the combination use of the inclined grating plate and the horizontal grating plate can realize solid-liquid separation to the greatest extent.
Reference is next made to fig. 3. FIG. 3 is a schematic diagram of the structure of an anaerobic hydrolysis acidification tank used in the AO + hydroxyl radical aqueous solution all-in-one machine shown in FIG. 1.
In fig. 3, the anaerobic hydrolysis acidification tank 4 comprises a reaction zone 41, and the reaction zone 41 is provided with a water inlet pipe 42 and a water distribution pipe 43. The reaction zone 41 is provided with at least one water inlet pipe 42 and a plurality of water distribution sub-pipes 431-43N;
a plurality of water distribution holes 311-31N are formed in each of the water distribution sub-pipes 431-43N.
The plurality of water distribution sub-pipes and the water distribution holes are uniformly arranged, so that the reaction area of the reaction zone can be increased, and the oxygen hydrolysis acidification treatment effect of the oxygen hydrolysis acidification tank is improved.
The working principle and other partial structures of the anaerobic hydrolysis acidification tank can be seen in the prior art CN201110061553.4. It is noted that the anaerobic hydrolysis acidification tank in the prior art also comprises a sludge-water separation zone besides the reaction zone. However, in the present invention, solid-liquid separation has been performed at the front inlet by using the structures of fig. 2 (a) -2 (b), so that the oxygen hydrolysis acidification tank of the present invention does not need to be provided with a mud-water separation zone, and other structures and principles are similar.
FIG. 4 is a schematic diagram showing a connection structure of an anaerobic hydrolysis acidification tank and a biological trickling filter used in the AO + hydroxyl radical aqueous solution all-in-one machine shown in FIG. 1;
in fig. 4, the bio-trickling filter 5 is connected with the reaction zone 41 of the anaerobic hydrolytic acidification tank 4; the bottom of the biological trickling filter 5 is connected with a biological nutrient solution storage tank 51. The upper part of the biological trickling filter 5 is provided with a biological filler layer 52.
The sewage treated by the biological trickling filter 5 enters a sedimentation tank (not shown in the figure), is precipitated by the sedimentation tank, and the supernatant is treated by the hydroxyl radical aqueous solution all-in-one machine.
Other types of construction of a bio-trickling filter can be found in CN109821399A.
Finally, referring to fig. 5, fig. 5 shows a schematic structural combination diagram of a hydroxyl radical treatment tank used in the AO + hydroxyl radical aqueous solution all-in-one machine shown in fig. 1.
In fig. 5, the hydroxyl radical treatment tank 7 includes a hydroxyl radical aqueous solution generating device 71 and a hydroxyl radical aqueous solution storage tank 72; the hydroxyl radical aqueous solution generating device 71 is connected to the hydroxyl radical aqueous solution storage tank 72. The hydroxyl radical treatment tank 7 further comprises a water mixer 73; the water mixer 73 is connected to the upper end of a sedimentation basin (not shown) and is connected to the hydroxyl radical aqueous solution storage tank 72 through a solenoid valve 74.
Further, the hydroxyl radical treatment tank 7 further includes an ozone generating device 75.
The formation of hydroxyl radical aqueous solution can be carried out based on above-mentioned structure, and its principle belongs to prior art, and the department except the utility model discloses the prior art that the background art mentioned can also refer to CN104709964A, the utility model discloses do not do specific expansion to this.
Based on the utility model discloses an integrated structure, the sewage promotes to anaerobic hydrolysis acidification pool after the great impurity is got rid of through the grid in AO technology, and the macromolecule organic matter decomposes into the even quality of water of micromolecule organic matter, provides the advantage for later stage biochemical reaction.
Preferably, the water quality and the water quantity can be homogenized again through the distribution tank, mature biomembranes in the composite biofilter are utilized to the maximum extent, most of COD and S are removed, and part of NH is removed at the same time 3 And (4) converting substances such as-N, organic P and the like into inorganic substances, then precipitating in a sedimentation tank, and treating supernatant by a hydroxyl radical aqueous solution all-in-one machine to further remove COD (chemical oxygen demand) and simultaneously play a good role in disinfection and sterilization. And after the water quality of the effluent reaches the standard of Farmland irrigation Water quality Standard (GB 5804-2005), the effluent enters a Farmland irrigation or green irrigation planting system.
The utility model discloses can get rid of COD after rural domestic sewage handles through AO + hydroxyl free radical aqueous solution all-in-one, become harmful substance oxidation into CO 2 、H 2 O or mineral salt, organic nitrogen and P are converted into inorganic matters, nutrient components required by plants are reserved to a large extent, and the treated sewage is used for farmland irrigation or greening irrigation.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. The utility model provides an AO + hydroxyl radical aqueous solution all-in-one, the all-in-one includes water inlet (1) and delivery port (2), its characterized in that:
the all-in-one machine also comprises a grating device (3), an anaerobic hydrolysis acidification pool (4), a biological trickling filter (5), a sedimentation pool (6), a hydroxyl radical treatment pool (7) and a reclaimed water pool (8);
the water inlet (1) is connected with the grating device (3), and the water outlet (2) is connected with the intermediate water pool (8);
the anaerobic hydrolysis acidification tank (4) is connected with the biological trickling filter (5), and the sedimentation tank (6) is connected with the hydroxyl radical treatment tank (7).
2. The all-in-one machine of AO + hydroxyl radical aqueous solution of claim 1, wherein:
the grating device (3) is a multilayer grating layer (31), and the multilayer grating layer (31) comprises horizontal grating plates (311) and inclined grating plates (312).
3. The AO + hydroxyl radical aqueous solution all-in-one machine according to claim 1, wherein:
the anaerobic hydrolysis acidification tank (4) comprises a reaction zone (41), and the reaction zone (41) is provided with a water inlet pipe (42) and a water distribution pipe (43).
4. An AO + hydroxyl radical aqueous solution all-in-one machine as claimed in claim 3, wherein:
the reaction zone (41) is provided with at least one water inlet pipe (42) and a plurality of water distribution sub-pipes (431-43N);
each water distribution sub-pipe (431-43N) is provided with a plurality of water distribution holes (311-31N).
5. An AO + hydroxyl radical aqueous solution all-in-one machine as claimed in claim 3, wherein:
the biological trickling filter (5) is connected with a reaction zone (41) of the anaerobic hydrolysis acidification tank (4); the bottom of the biological trickling filter (5) is connected with a biological nutrient solution storage tank (51).
6. The all-in-one machine of AO + hydroxyl radical aqueous solution of claim 1, wherein:
the lower end of the sedimentation tank (6) is connected with the biological trickling filter (5), and the upper end is connected with the hydroxyl radical treatment tank (7).
7. An all-in-one machine of AO + hydroxyl radical aqueous solution according to any one of claims 1 to 6, wherein:
the hydroxyl radical treatment tank (7) comprises a hydroxyl radical aqueous solution generating device (71) and a hydroxyl radical aqueous solution storage tank (72);
the hydroxyl radical aqueous solution generating device (71) is connected with the hydroxyl radical aqueous solution storage tank (72).
8. The all-in-one machine of AO + hydroxyl radical aqueous solution of claim 7, wherein:
the hydroxyl radical treatment pool (7) also comprises a water mixer (73);
the water mixer (73) is connected with the upper end of the sedimentation tank (6) and is connected to the hydroxyl radical water solution storage tank (72) through a solenoid valve (74).
9. The AO + hydroxyl radical aqueous solution all-in-one machine of claim 7, wherein:
the hydroxyl radical treatment tank (7) also comprises an ozone generating device (75).
10. The AO + hydroxyl radical aqueous solution all-in-one machine of claim 5, wherein:
the upper part of the biological trickling filter (5) is provided with a biological filler layer (52).
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| Application Number | Priority Date | Filing Date | Title |
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| CN202220223996.2U CN217578598U (en) | 2022-01-22 | 2022-01-22 | AO + hydroxyl radical aqueous solution all-in-one |
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| CN202220223996.2U CN217578598U (en) | 2022-01-22 | 2022-01-22 | AO + hydroxyl radical aqueous solution all-in-one |
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