CN111606506A - Domestic sewage treatment equipment for enhancing denitrification through ultraviolet and hydrogen peroxide - Google Patents
Domestic sewage treatment equipment for enhancing denitrification through ultraviolet and hydrogen peroxide Download PDFInfo
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- CN111606506A CN111606506A CN202010428284.XA CN202010428284A CN111606506A CN 111606506 A CN111606506 A CN 111606506A CN 202010428284 A CN202010428284 A CN 202010428284A CN 111606506 A CN111606506 A CN 111606506A
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- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 title claims abstract description 98
- 239000010865 sewage Substances 0.000 title claims abstract description 71
- 230000002708 enhancing effect Effects 0.000 title claims abstract description 7
- 239000010802 sludge Substances 0.000 claims abstract description 39
- 238000004659 sterilization and disinfection Methods 0.000 claims abstract description 38
- 238000004062 sedimentation Methods 0.000 claims abstract description 34
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 33
- 238000005189 flocculation Methods 0.000 claims abstract description 23
- 230000016615 flocculation Effects 0.000 claims abstract description 23
- 206010021143 Hypoxia Diseases 0.000 claims abstract description 7
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 claims description 18
- 238000003756 stirring Methods 0.000 claims description 12
- 239000007788 liquid Substances 0.000 claims description 10
- 229910052757 nitrogen Inorganic materials 0.000 claims description 9
- 238000010992 reflux Methods 0.000 claims description 7
- 238000005276 aerator Methods 0.000 claims description 6
- 239000008394 flocculating agent Substances 0.000 claims description 4
- 239000006228 supernatant Substances 0.000 claims description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 abstract description 4
- 239000001301 oxygen Substances 0.000 abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 abstract description 4
- 239000007800 oxidant agent Substances 0.000 abstract description 3
- 230000001590 oxidative effect Effects 0.000 abstract description 3
- 238000001556 precipitation Methods 0.000 abstract 3
- 238000000034 method Methods 0.000 description 18
- 230000008569 process Effects 0.000 description 13
- 230000000694 effects Effects 0.000 description 7
- 239000000126 substance Substances 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 3
- 230000001546 nitrifying effect Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 241000108664 Nitrobacteria Species 0.000 description 2
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 2
- 238000005273 aeration Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 239000000945 filler Substances 0.000 description 2
- 230000000813 microbial effect Effects 0.000 description 2
- 244000005700 microbiome Species 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 239000011574 phosphorus Substances 0.000 description 2
- 150000003254 radicals Chemical class 0.000 description 2
- 230000001580 bacterial effect Effects 0.000 description 1
- 230000015556 catabolic process Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 238000006864 oxidative decomposition reaction Methods 0.000 description 1
- 238000006213 oxygenation reaction Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002957 persistent organic pollutant Substances 0.000 description 1
- 230000001376 precipitating effect Effects 0.000 description 1
- 230000035484 reaction time Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 241000894007 species Species 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Images
Classifications
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- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F9/00—Multistage treatment of water, waste water or sewage
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/30—Treatment of water, waste water, or sewage by irradiation
- C02F1/32—Treatment of water, waste water, or sewage by irradiation with ultraviolet light
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/52—Treatment of water, waste water, or sewage by flocculation or precipitation of suspended impurities
- C02F1/5281—Installations for water purification using chemical agents
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/72—Treatment of water, waste water, or sewage by oxidation
- C02F1/722—Oxidation by peroxides
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/10—Inorganic compounds
- C02F2101/16—Nitrogen compounds, e.g. ammonia
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2101/00—Nature of the contaminant
- C02F2101/30—Organic compounds
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/04—Disinfection
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2303/00—Specific treatment goals
- C02F2303/14—Maintenance of water treatment installations
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F2305/00—Use of specific compounds during water treatment
- C02F2305/02—Specific form of oxidant
- C02F2305/023—Reactive oxygen species, singlet oxygen, OH radical
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
- C02F3/308—Biological phosphorus removal
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F7/00—Aeration of stretches of water
Abstract
The invention discloses a domestic sewage treatment device for enhancing denitrification through ultraviolet and hydrogen peroxide, and belongs to the technical field of sewage treatment devices. It includes sewage equalizing basin, oxygen deficiency pond, good oxygen pond, sludge sedimentation pond, flocculation and precipitation pond, the sewage equalizing basin passes through the intake pump and connects oxygen deficiency bottom of the pool portion, and oxygen deficiency pond overflow inserts good oxygen bottom of the pool portion, and good oxygen pond overflow inserts sludge sedimentation bottom of the pool portion, and sludge sedimentation pond overflow inserts flocculation and precipitation pond, flocculation and precipitation pond overflow has connect ultraviolet hydrogen peroxide solution disinfection pond. The hydrogen peroxide is used as a strong oxidant and can oxidize various organic matters and inorganic matters in the sewage, and the biochemical property of the sewage can be improved when the effluent flows back to the sewage adjusting tank, so that the enhanced denitrification performance is achieved after the effluent enters a biochemical system; hydrogen peroxide is added on the basis of ultraviolet, and the two phases are matched, so that the disinfection strength of tail water discharge is increased, and the hydrogen peroxide can remove a dirt film attached to the pipe wall to ensure the normal operation of ultraviolet disinfection.
Description
Technical Field
The invention relates to a domestic sewage treatment device for enhancing denitrification through ultraviolet rays and hydrogen peroxide, and belongs to the technical field of sewage treatment devices.
Background
At present, the most widely used method for treating domestic sewage in villages and towns is an activated sludge method and a derivative improvement process thereof. The method can remove soluble and colloidal biochemical organic matters, suspended solids and other substances which can be adsorbed by activated sludge from the sewage, and can also remove a part of phosphorus and nitrogen, thereby having good effect on denitrification and dephosphorization required in domestic sewage treatment.
The activated sludge process mixes, stirs and aerates sewage and activated sludge to decompose organic pollutants in the sewage, and then separates biosolids from the treated sewage and returns part of the biosolids to an aeration tank as required. Therefore, the activity of the microorganisms also necessarily affects the treatment effect of the process on the sewage, wherein the temperature is relatively common and can vary with time and seasons. In the first-grade A sewage discharge standard, when the temperature is lower than 12 ℃, the ammonia nitrogen discharge standard is increased from 5mg/L to 8mg/L, but the total nitrogen discharge standard is not changed, which also invisibly increases the denitrification effect of the sewage treatment process. Therefore, there is a need for improved processes to enhance the removal of total nitrogen from wastewater by rational means.
Therefore, the domestic sewage treatment equipment for enhancing denitrification through ultraviolet rays and hydrogen peroxide is designed, hydrogen peroxide is added on the basis of original ultraviolet disinfection, a large-capacity ultraviolet hydrogen peroxide disinfection tank is additionally arranged to ensure the reaction time of hydrogen peroxide, and simultaneously, effluent water flows back to the sewage adjusting tank, so that the sewage treatment effect is enhanced, and the removal efficiency of the system on total nitrogen is improved.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: provides a domestic sewage treatment device for strengthening denitrification through ultraviolet and hydrogen peroxide, which improves the denitrification efficiency of the current domestic sewage treatment device.
The technical problem to be solved by the invention is realized by adopting the following technical scheme:
a domestic sewage treatment device for enhancing denitrification through ultraviolet and hydrogen peroxide comprises a sewage adjusting tank, an anoxic tank, an aerobic tank, a sludge sedimentation tank and a flocculation sedimentation tank, wherein the sewage adjusting tank is connected with the bottom of the anoxic tank through a water inlet pump;
the flocculation sedimentation tank comprises a stirring and dosing area and a flocculation sedimentation area, wherein the stirring and dosing area is provided with a flocculating agent dosing pump and a stirrer, the stirring and dosing area overflows to the flocculation sedimentation area, and the flocculation sedimentation area overflows to the ultraviolet hydrogen peroxide disinfection tank;
the ultraviolet hydrogen peroxide disinfection tank is provided with an ultraviolet lamp and a hydrogen peroxide dosing pump, the ultraviolet hydrogen peroxide disinfection tank is provided with a water outlet pipe, the upper part of the ultraviolet hydrogen peroxide disinfection tank is connected with a water outlet backflow pipe, and the water outlet backflow pipe is connected to a sewage adjusting tank;
the sludge sedimentation tank bottom is equipped with mud outer calandria, and mud outer calandria side has connect the mud back flow, and the mud back flow inserts the oxygen deficiency pond, is equipped with the mud backwash pump on the mud back flow, and the mud sedimentation tank supernatant has connect and nitrifies the liquid backwash pump, nitrifies liquid backwash pump outlet end and inserts the oxygen deficiency pond.
As a preferable example, the bottom parts of the anoxic tank and the aerobic tank are provided with aerators which are connected with a blower.
As a preferable example, an effluent reflux pump is arranged on an effluent reflux pipe between the ultraviolet hydrogen peroxide disinfection tank and the sewage adjusting tank.
The scheme is improved on the basis of an AO water treatment process, wherein the AO water treatment process (AO is an abbreviation of anaerobic Oxic) is also called an anaerobic-aerobic process, and A (anaerobic) is an anaerobic section and is used for removing nitrogen and phosphorus; o (oxic) is an aerobic section for removing organic matter from water. It mainly comprises an adjusting tank, an anoxic tank, an aerobic tank, a sedimentation tank and a disinfection tank:
a regulating pool: domestic sewage is treated by a grid and then enters a regulating tank for regulating and homogenizing water quantity and water quality, the balance and stability of the water quantity and the water quality of a subsequent biochemical treatment system are ensured, and a pre-aeration system is arranged for oxygenation and stirring to prevent suspended particles in the sewage from precipitating and smelling, and also plays a certain role in degrading organic matters in the sewage, so that the impact resistance and the treatment effect of the whole system are improved;
an anoxic tank: the sewage is further mixed, the high-efficiency biological elastic filler in the pool is fully utilized as a bacterial carrier, indissolvable organic matters in the sewage are converted into soluble organic matters by facultative microorganisms, macromolecular organic matters are hydrolyzed into micromolecular organic matters so as to be beneficial to further oxidative decomposition of a subsequent aerobic pool, and partial nitrification and denitrification can be carried out under the action of nitrobacteria through the returned nitrocarbon nitrogen to remove ammonia nitrogen;
an oxidation pond: the pool is a core part of the sewage treatment and is divided into two sections, wherein the former section is under higher organic load, and various organic substances in the sewage are removed through the biochemical degradation and adsorption action of a large number of microbial communities of different species attached to the filler under the joint participation, so that the content of the organic substances in the sewage is greatly reduced; under the condition of lower organic load, the later stage degrades ammonia nitrogen in the sewage under the condition of sufficient oxygen content through the action of nitrobacteria, and simultaneously reduces the COD value in the sewage to a lower level, so that the sewage is purified;
a sedimentation tank: carrying out solid-liquid separation to remove suspended sludge peeled off from the biochemical tank so as to really purify the sewage;
a disinfection tank: the effluent flows into a disinfection tank for disinfection, so that the effluent quality meets the requirement of sanitary index and is discharged out in a qualified mode.
The invention has the beneficial effects that:
(1) the hydrogen peroxide is used as a strong oxidant and can oxidize various organic matters and inorganic matters in the sewage, and the biochemical property of the sewage can be improved when the effluent flows back to the sewage adjusting tank, so that the enhanced denitrification performance is achieved after the effluent enters a biochemical system;
(2) hydrogen peroxide is added on the basis of ultraviolet, and the two phases are matched, so that the disinfection strength of tail water discharge is increased, and free radicals generated by the hydrogen peroxide can oxidize various substances in sewage, thereby improving the biodegradability of the sewage;
(3) hydrogen peroxide is added into the ultraviolet disinfection tank, so that the tail water disinfection effect can be further enhanced, and simultaneously, a dirt film attached to the pipe wall can be removed, and the normal operation of ultraviolet disinfection is ensured.
Drawings
FIG. 1 is a schematic structural diagram of the present invention.
In the figure: the sewage treatment system comprises a sewage adjusting tank 1, an anoxic tank 2, an aerobic tank 3, a sludge sedimentation tank 4, a flocculation sedimentation tank 5, a water inlet pump 6, an ultraviolet hydrogen peroxide disinfection tank 7, a stirring dosing zone 8, a flocculation sedimentation zone 9, a flocculating agent dosing pump 10, a stirrer 11, an ultraviolet lamp 12, a hydrogen peroxide dosing pump 13, a water outlet pipe 14, a water outlet return pipe 15, a sludge outer discharge pipe 16, a sludge return pipe 17, a sludge return pump 18, a nitrifying liquid return pump 19, an aerator 20 and an air blower 21.
Detailed Description
In order to make the technical means, the original characteristics, the achieved purpose and the efficacy of the invention easy to understand, the invention is further described with reference to the specific drawings.
As shown in fig. 1, a domestic sewage treatment device for enhanced nitrogen removal by ultraviolet and hydrogen peroxide comprises a sewage adjusting tank 1, an anoxic tank 2, an aerobic tank 3, a sludge settling tank 4 and a flocculation settling tank 5, wherein the sewage adjusting tank 2 is connected with the bottom of the anoxic tank 2 through a water inlet pump 6, the anoxic tank 2 overflows and is connected with the bottom of the aerobic tank 3, the aerobic tank 3 overflows and is connected with the bottom of the sludge settling tank 4, the sludge settling tank 4 overflows and is connected with the flocculation settling tank 5, and the flocculation settling tank 5 overflows and is connected with an ultraviolet hydrogen peroxide disinfection tank 7;
the flocculation sedimentation tank 5 comprises a stirring and dosing area 8 and a flocculation sedimentation area 9, the stirring and dosing area 8 is provided with a flocculating agent dosing pump 10 and a stirrer 11, the stirring and dosing area 8 overflows to the flocculation sedimentation area 9, and the flocculation sedimentation area 9 overflows to the ultraviolet hydrogen peroxide disinfection tank 7;
the ultraviolet hydrogen peroxide disinfection tank 7 is provided with an ultraviolet lamp 12 and a hydrogen peroxide dosing pump 13, the ultraviolet hydrogen peroxide disinfection tank 7 is provided with a water outlet pipe 14, the upper part of the ultraviolet hydrogen peroxide disinfection tank 7 is connected with a water outlet return pipe 15, and the water outlet return pipe 15 is connected to the sewage adjusting tank 1;
the bottom of the sludge sedimentation tank 4 is provided with a sludge external drainage pipe 16, the side of the sludge external drainage pipe 16 is connected with a sludge return pipe 17, the sludge return pipe 17 is connected with the anoxic tank 2, the sludge return pipe 17 is provided with a sludge return pump 18, the supernatant of the sludge sedimentation tank 4 is connected with a nitrifying liquid return pump 19, and the water outlet end of the nitrifying liquid return pump 19 is connected with the anoxic tank 2. The sludge discharging pipe 16 is provided with a sludge pump to pump out the excess sludge.
The bottom of the anoxic tank 2 and the bottom of the aerobic tank 3 are both provided with an aerator 20, and the aerator 20 is connected with a blower 21.
An effluent reflux pump (not shown in the figure) is arranged on an effluent reflux pipe 15 between the ultraviolet hydrogen peroxide disinfection tank 7 and the sewage adjusting tank 1. The ultraviolet hydrogen peroxide disinfection tank 7 and the sewage adjusting tank 1 can also flow back through gravity, and a water outlet return pump is not required to be arranged on the water outlet return pipe 15.
The process for treating domestic sewage by using the equipment comprises the following steps:
(1) sewage enters an AO process (AO is an abbreviation of anaerobic Oxic process, an AO process method is also called an anaerobic-aerobic process method and comprises an Anoxic tank 2, an aerobic tank 3 and a sludge sedimentation tank 4) after passing through a sewage adjusting tank 1, effluent enters an ultraviolet hydrogen peroxide disinfection tank 7 after passing through a flocculation sedimentation tank 5, and the effluent is discharged after being disinfected;
(2) the bottom of the sludge sedimentation tank 4 is provided with a sludge external drainage pipe 16, most of sludge is discharged from the sludge external drainage pipe 16, and a small part of microbial sludge flows back to the anoxic tank 2 through a sludge return pipe 17 and a sludge return pump 18;
(3) the upper layer nitrified liquid in the sludge sedimentation tank 4 flows back to the anoxic tank 2 through a nitrified liquid reflux pump 19;
(4) the discharged water part of the ultraviolet hydrogen peroxide disinfection tank 7 after disinfection treatment flows back to the sewage adjusting tank 1.
The hydrogen peroxide is used as a strong oxidant and can oxidize various organic matters and inorganic matters in the sewage, and the biochemical property of the sewage can be improved when the effluent flows back to the sewage adjusting tank 1, so that the enhanced denitrification performance is achieved after the effluent enters a biochemical system;
add hydrogen peroxide solution on the basis of ultraviolet, double-phase cooperation has not only increaseed the disinfection dynamics that the tail water discharged, and the free radical that hydrogen peroxide solution produced can oxidize multiple material in the sewage in addition, improves the biodegradability of sewage, reforms transform into the expansion ultraviolet hydrogen peroxide solution disinfection pond 7 with original ultraviolet disinfection pond simultaneously, satisfies hydrogen peroxide solution oxidation time requirement to hydrogen peroxide solution can get rid of the adnexed dirt membrane of pipe wall, guarantees ultraviolet disinfection's normal clear.
The foregoing illustrates and describes the principles, general features, and advantages of the present invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, and that various changes and modifications may be made without departing from the spirit and scope of the invention as defined in the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (3)
1. A domestic sewage treatment device for enhancing denitrification through ultraviolet and hydrogen peroxide comprises a sewage adjusting tank, an anoxic tank, an aerobic tank, a sludge sedimentation tank and a flocculation sedimentation tank, wherein the sewage adjusting tank is connected with the bottom of the anoxic tank through a water inlet pump;
the flocculation sedimentation tank comprises a stirring and dosing area and a flocculation sedimentation area, wherein the stirring and dosing area is provided with a flocculating agent dosing pump and a stirrer, the stirring and dosing area overflows to the flocculation sedimentation area, and the flocculation sedimentation area overflows to the ultraviolet hydrogen peroxide disinfection tank;
the ultraviolet hydrogen peroxide disinfection tank is provided with an ultraviolet lamp and a hydrogen peroxide dosing pump, the ultraviolet hydrogen peroxide disinfection tank is provided with a water outlet pipe, the upper part of the ultraviolet hydrogen peroxide disinfection tank is connected with a water outlet backflow pipe, and the water outlet backflow pipe is connected to a sewage adjusting tank;
the sludge sedimentation tank bottom is equipped with mud outer calandria, and mud outer calandria side has connect the mud back flow, and the mud back flow inserts the oxygen deficiency pond, is equipped with the mud backwash pump on the mud back flow, and the mud sedimentation tank supernatant has connect and nitrifies the liquid backwash pump, nitrifies liquid backwash pump outlet end and inserts the oxygen deficiency pond.
2. The domestic sewage treatment apparatus for enhanced nitrogen removal by ultraviolet and hydrogen peroxide according to claim 1, wherein the bottom of each of the anoxic tank and the aerobic tank is provided with an aerator, and the aerator is connected with a blower.
3. The domestic sewage treatment equipment for enhanced nitrogen removal by ultraviolet and hydrogen peroxide according to claim 1, wherein a water outlet reflux pump is arranged on a water outlet reflux pipe between the ultraviolet hydrogen peroxide disinfection tank and the sewage adjusting tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010428284.XA CN111606506A (en) | 2020-05-20 | 2020-05-20 | Domestic sewage treatment equipment for enhancing denitrification through ultraviolet and hydrogen peroxide |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010428284.XA CN111606506A (en) | 2020-05-20 | 2020-05-20 | Domestic sewage treatment equipment for enhancing denitrification through ultraviolet and hydrogen peroxide |
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| CN111606506A true CN111606506A (en) | 2020-09-01 |
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|---|---|---|---|
| CN202010428284.XA Pending CN111606506A (en) | 2020-05-20 | 2020-05-20 | Domestic sewage treatment equipment for enhancing denitrification through ultraviolet and hydrogen peroxide |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113292185A (en) * | 2021-04-25 | 2021-08-24 | 南京中微纳米功能材料研究院有限公司 | Multifunctional green pre-oxidation sewage treatment equipment and application method |
Citations (4)
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|---|---|---|---|---|
| JP2010179272A (en) * | 2009-02-09 | 2010-08-19 | Iwasaki Electric Co Ltd | Wastewater treatment apparatus and wastewater treatment method |
| CN102452770A (en) * | 2010-11-04 | 2012-05-16 | 美舒环保科技（北京）有限公司 | Biochemical treatment/advanced oxidation treatment coupled sewage treatment technique |
| CN107311405A (en) * | 2017-08-18 | 2017-11-03 | 北京博大水务有限公司 | Urban sewage treatment system and technique |
| CN107915368A (en) * | 2016-10-11 | 2018-04-17 | 广州恒德环保科技有限公司 | A kind of domestic sewage processing method |
-
2020
- 2020-05-20 CN CN202010428284.XA patent/CN111606506A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010179272A (en) * | 2009-02-09 | 2010-08-19 | Iwasaki Electric Co Ltd | Wastewater treatment apparatus and wastewater treatment method |
| CN102452770A (en) * | 2010-11-04 | 2012-05-16 | 美舒环保科技（北京）有限公司 | Biochemical treatment/advanced oxidation treatment coupled sewage treatment technique |
| CN107915368A (en) * | 2016-10-11 | 2018-04-17 | 广州恒德环保科技有限公司 | A kind of domestic sewage processing method |
| CN107311405A (en) * | 2017-08-18 | 2017-11-03 | 北京博大水务有限公司 | Urban sewage treatment system and technique |
Non-Patent Citations (1)
| Title |
|---|
| 王学刚: "《水处理工程》", 31 January 2015, 中国环境科学出版社 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113292185A (en) * | 2021-04-25 | 2021-08-24 | 南京中微纳米功能材料研究院有限公司 | Multifunctional green pre-oxidation sewage treatment equipment and application method |
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Application publication date: 20200901 |