CN109231673B - A/O combined micro-electric field-Fe/C reinforced dephosphorization device and application thereof - Google Patents
A/O combined micro-electric field-Fe/C reinforced dephosphorization device and application thereof Download PDFInfo
- Publication number
- CN109231673B CN109231673B CN201811180181.5A CN201811180181A CN109231673B CN 109231673 B CN109231673 B CN 109231673B CN 201811180181 A CN201811180181 A CN 201811180181A CN 109231673 B CN109231673 B CN 109231673B
- Authority
- CN
- China
- Prior art keywords
- tank
- electric field
- micro
- sewage
- reaction zone
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- 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
- C02F1/001—Processes for the treatment of water whereby the filtration technique is of importance
-
- 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
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
-
- 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
- C02F1/66—Treatment of water, waste water, or sewage by neutralisation; pH adjustment
-
- 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
- C02F2001/007—Processes including a sedimentation step
-
- 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
- C02F2101/105—Phosphorus 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/30—Aerobic and anaerobic processes
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
- Removal Of Specific Substances (AREA)
Abstract
The invention discloses an A/O combined micro-electric field-Fe/C process reinforced phosphorus removal device and application thereof, wherein the device comprises an anaerobic acidification tank, an intermittent aeration tank and a micro-electric field-Fe/C reaction zone which are sequentially arranged, and also comprises an aeration system, wherein the intermittent aeration tank and the micro-electric field-Fe/C reaction zone are respectively connected with an aeration system through pipelines, the micro-electric field-Fe/C reaction zone comprises a main reaction zone, a disinfection tank and a sludge concentration tank which are sequentially arranged, and the intermittent aeration tank is connected to the upper part of the sludge concentration tank through a first backflow pipeline; the device is stable in operation and high in efficiency, phosphorus, nitrogen and organic matters in sewage can be effectively removed by using the device, and the quality of treated water can reach the first-level A standard of surface water.
Description
Technical Field
The invention relates to an environment-friendly device and the application field thereof, in particular to an A/O combined micro-electric field-Fe/C reinforced dephosphorization device and the application thereof.
Background
With the rapid development of the industry and the acceleration of the urban level in China, the demand for water resources is greatly increased, the exploitation potential of the available water resources is exceeded, and the so-called water shortage is formed. On the other hand, the water pollution makes the water resource which is originally available unavailable, and the water quality water shortage is formed, so that the degree of water resource shortage is further increased. Therefore, the problem of water resource shortage is solved, the water quantity is required to be opened and throttled, and meanwhile, the water pollution is also required to be controlled.
The nitrogen and phosphorus pollution in water pollution is getting more and more attention, and in order to effectively prevent the increasingly serious nitrogen and phosphorus pollution and the water eutrophication caused by the increasingly serious nitrogen and phosphorus pollution, the new pollutant emission standard of urban sewage treatment plants (GB 18918-2002) implemented in 7 months 1 of 2003 in China puts forward more strict requirements on the nitrogen and phosphorus standards of the water discharged from the urban sewage treatment plants. The pollution of nitrogen and phosphorus means that along with the increasing development and utilization activities of human beings on environmental resources, domestic sewage and industrial wastewater containing a large amount of nitrogen and phosphorus nutrients are discharged into rivers and lakes, the nutrient load of the receiving water body is increased, the direct consequence is that algae, other aquatic organisms and plants are propagated in a large amount, the water body is aged in a short time, and the water body quality is deteriorated and the structure of the water ecological environment is damaged, namely the water body is eutrophicated. From the relation of the algae demand for nitrogen and phosphorus in the water body, phosphorus is a key factor for causing eutrophication of the water body. It is believed that water eutrophication can occur when the total phosphorus in the water reaches 0.015 mg/L. From the source, phosphorus entering natural water contains both point source pollution (concentrated sewage discharge) and non-point source pollution (agricultural non-point source).
At present, no effective control means is available for the non-point source pollution, the control of the non-point source pollution becomes a key technical measure for relieving the eutrophication of the water body, and the phosphorus in the sewage is required to be effectively removed. For this reason, world-wide countries have increasingly stringent requirements on the emission standards of phosphorus in domestic sewage treatment: the current sewage discharge standard in China requires 1.0mg/L of the first-level A discharge standard established before 12 months and 31 days in 2005, 1.5mg/L of the first-level B discharge standard, 0.5 mg/L of the first-level A discharge standard established after 1 month and 1 day in 2006, and 1.0mg/L of the first-level B discharge standard for the treatment targets of the TP of the sewage treatment plants.
In recent years, the construction of new ecological rural areas is steadily advancing due to the rapid development of rural living standards. The discharge standard of rural domestic sewage is also improved, the traditional rural domestic sewage treatment facilities mainly adopt biological methods, the higher discharge standard is difficult to reach, the occupied area of the infrastructure facilities is large, the management difficulty is high, the sewage is not timely cleaned, and the like often cause water mud discharge, and the standard-reaching discharge of total phosphorus is difficult to control. Therefore, the treatment device with low management difficulty, better economic cost and higher efficiency is an urgent need for improving the traditional rural domestic sewage treatment facilities.
It can be seen that there is a need for improvements and improvements in the art.
Disclosure of Invention
In view of the shortcomings of the prior art, the invention aims to provide an A/O combined micro-electric field-Fe/C reinforced dephosphorization device and application thereof, and aims to solve the technical problems that the sewage treatment method in the prior art is large in occupied area and management difficulty and the water discharged after treatment does not reach the standard.
In order to achieve the above purpose, the invention adopts the following technical scheme:
the utility model provides a phosphorus removal device is reinforceed to A/O allies oneself with little electric field-Fe/C technology, includes anaerobic acidification pond, intermittent type formula aeration tank and little electric field-Fe/C reaction zone that sets gradually, still includes aeration system, intermittent type formula aeration tank and little electric field-Fe/C reaction zone are connected with aeration system pipeline respectively, little electric field-Fe/C reaction zone is including main reaction zone, disinfection pond and the mud concentration pond that sets gradually, intermittent type formula aeration tank passes through first backflow pipeline connection in the upper portion of mud concentration pond.
In the A/O combined micro-electric field-Fe/C process reinforced dephosphorization device, the device also comprises a primary sedimentation tank arranged between the anaerobic acidification tank and the intermittent aeration tank, and the bottom of the primary sedimentation tank is connected with the sludge concentration tank through a pipeline.
In the A/O combined micro-electric field-Fe/C process reinforced dephosphorization device, the device also comprises a secondary sedimentation tank arranged between the intermittent aeration tank and the micro-electric field-Fe/C reaction zone, wherein the bottom of the secondary sedimentation tank is connected with the anaerobic acidification tank through a second backflow pipeline and is connected with the sludge concentration tank through a sludge recovery pipeline.
In the A/O combined micro-electric field-Fe/C process reinforced dephosphorization device, two intermittent aeration tanks are arranged, and the two intermittent aeration tanks are in a serial structure.
In the A/O combined micro-electric field-Fe/C process reinforced dephosphorization device, the device further comprises a coarse grid well arranged in front of the anaerobic acidification tank and a fine grid well arranged between the anaerobic acidification tank and the primary sedimentation tank, and the coarse grid well is connected with the anaerobic acidification tank through a pipeline and a lifting pump.
In the A/O combined micro-electric field-Fe/C process reinforced dephosphorization device, the main reaction zone comprises a plurality of filler zones and an adjusting zone arranged between two adjacent filler zones.
In the A/O combined micro-electric field-Fe/C process reinforced dephosphorization device, a plurality of graphite electrodes and iron-carbon filler columns are arranged in a filler region, the graphite electrodes are connected to the iron-carbon filler columns and are connected with a stabilized voltage supply through wires, the iron-carbon filler columns are arranged in parallel, one ends of the iron-carbon filler columns are fixed on the pool wall of the filler region, and the fixed ends of the adjacent iron-carbon filler columns are staggered with each other to form a baffling structure.
In the A/O combined micro-electric field-Fe/C process reinforced dephosphorization device, a stirrer is also arranged in the anaerobic acidification tank.
An application of an A/O combined micro-electric field-Fe/C process reinforced dephosphorization device, comprising:
s001, filtering large particles and part of suspended matters from the sewage through a coarse grid well;
s002, mixing the filtered sewage with a pH regulator, and then lifting the mixture to anaerobic acidification Chi Suanhua by a lifting pump;
s003, the acidified sewage enters a primary sedimentation tank for preliminary sedimentation after passing through a fine grid well, the precipitated sludge is conveyed to a sludge concentration tank for recycling, the sewage enters an intermittent aeration tank for biological denitrification and dephosphorization, the aeration time is 1-2h, the intermittent time is 2-4h, and the total residence time is 4-6h;
s004, the sewage treated in the step S003 enters a secondary sedimentation tank to further collect sludge, part of the collected sludge flows back to an anaerobic acidification tank, and the rest of the sludge is conveyed to a sludge concentration tank to be recovered;
s005 the precipitated sewage enters a micro-electric field-Fe/C reaction zone to deeply remove phosphorus, and the current density in the micro-electric field is set to be 10-15mA/cm 2 The micropore aeration is more than or equal to 10L/min, and the sewage retention time is 40-180min;
s006, sewage subjected to electrochemical deep dephosphorization enters a disinfection tank, is disinfected and discharged, and the collected sludge is conveyed to a sludge concentration tank for dehydration and recovery.
In the application of the A/O combined micro-electric field-Fe/C process reinforced dephosphorization device, the iron-carbon ratio of the iron-carbon filling column in the micro-electric field-Fe/C reaction zone is more than or equal to 3.
The beneficial effects are that:
the invention provides an A/O combined micro-electric field-Fe/C process reinforced phosphorus removal device and application thereof, wherein most of total phosphorus and other pollution indexes are effectively reduced by an anaerobic acidification tank and an intermittent aeration tank, and the reinforced phosphorus removal of a micro-electric field-Fe/C reaction area is matched, so that the defect of the phosphorus removal capability of the A/O is overcome, the treated sewage reaches the first grade A standard, the sludge concentration tank can timely recycle the sludge, the purpose of recycling the resource is achieved, the device is stable in operation, the operation cost of the anaerobic acidification tank and the intermittent aeration tank is low, the operation cost of sewage treatment can be reduced when the sewage is treated firstly, and the economic benefit of enterprises is improved.
Drawings
FIG. 1 is a schematic structural diagram of the A/O combined micro-electric field-Fe/C process enhanced dephosphorization device provided by the invention.
Detailed Description
The invention provides an A/O combined micro-electric field-Fe/C process reinforced dephosphorization device and application thereof, and in order to make the purposes, technical schemes and effects of the invention clearer and more definite, the invention is further described in detail below by referring to the accompanying drawings and examples. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention.
Referring to fig. 1, the invention provides an a/O combined micro-electric field-Fe/C process enhanced dephosphorization apparatus, which comprises an anaerobic acidification tank 1, an intermittent aeration tank 2 and a micro-electric field-Fe/C reaction zone 3 which are sequentially arranged, and further comprises an aeration system 4, wherein the intermittent aeration tank 2 and the micro-electric field-Fe/C reaction zone 3 are respectively connected with the aeration system 4 through pipelines, the micro-electric field-Fe/C reaction zone 3 comprises a main reaction zone 31, a disinfection tank 32 and a sludge concentration tank 33 which are sequentially arranged, and the intermittent aeration tank 2 is connected to the upper part of the sludge concentration tank 33 through a first backflow pipeline 5. The anaerobic acidification tank and the intermittent aeration tank in the device form an A/O system, the operation energy consumption is low, most of total phosphorus and other pollution indexes in sewage can be effectively reduced, the anaerobic acidification tank and the intermittent aeration tank are combined with a micro-electric field-Fe/C reaction zone for use, the total phosphorus and other pollutants in the water can be greatly reduced, the aeration system is respectively connected with the intermittent aeration tank and the micro-electric field-Fe/C reaction zone for providing an oxygen source, and meanwhile, the hardening of iron carbon filling materials in the micro-electric field-Fe/C reaction zone is prevented, and the performance of materials is effectively improved. The sewage on the upper layer in the sludge concentration zone is mixed with sewage in the primary sedimentation tank, the secondary sedimentation tank and the main reaction zone, and then flows back to the intermittent aeration tank again for further treatment, so that the quality of the effluent is ensured to be stable; the micro-electric field-Fe/C reaction zone is used together with the iron-carbon filler through the micro-electric field, so that the limitation of the PH range on the iron-carbon filler is avoided, the internal electrolysis effect of the iron-carbon is enhanced, the micro-electrolysis efficiency is enhanced, the electrolysis time is shortened, and the electric field efficiency and the area of the current action area are also improved by the iron-carbon seasoning.
Further, the device also comprises a primary sedimentation tank 6 arranged between the anaerobic acidification tank 1 and the intermittent aeration tank 2, and the bottom of the primary sedimentation tank 6 is connected with a sludge concentration tank 33 through a pipeline. And the sludge generated after the anaerobic reaction is conveyed to a sludge concentration tank, so that the difficulty of subsequent sewage treatment is reduced.
Further, the device also comprises a secondary sedimentation tank 7 arranged between the intermittent aeration tank 2 and the micro electric field-Fe/C reaction zone 3, wherein the bottom of the secondary sedimentation tank 7 is connected with the anaerobic acidification tank 1 through a second return pipe 8 and is connected with a sludge concentration tank 33 through a sludge recovery pipe 9. The anaerobic acidification tank hydrolyzes suspended pollutants such as starch, fiber, carbohydrate and the like and soluble organic matters in the sewage into organic acid, so that macromolecular organic matters are decomposed into micromolecular organic matters, insoluble organic matters are converted into soluble organic matters, and when the sewage subjected to anoxic treatment enters the intermittent aeration tank for aerobic treatment, the biodegradability and the oxygen efficiency of the sewage can be improved. The secondary sedimentation tank is connected with the anaerobic acidification tank through a second backflow pipeline, so that part of sludge in the secondary sedimentation tank flows back to the anaerobic acidification tank, and the decomposition effect of organic matters of sewage in the anaerobic biochemical tank is improved. The secondary sedimentation tank can discharge sludge sediment formed in the anaerobic-aerobic sublimation treatment stage, so that the water quality of subsequent micro-electric field treatment is improved, and the purification effect of sewage is improved.
Further, the number of the intermittent aeration tanks 2 is two, the two intermittent aeration tanks 2 are in a serial structure, and work in a staggered mode, so that sufficient reaction time and dissolved oxygen are ensured.
Further, the device also comprises a coarse grille well 10 arranged in front of the anaerobic acidification tank 1 and a fine grille well 11 arranged between the anaerobic acidification tank 1 and the primary sedimentation tank 6, wherein the coarse grille well 10 is connected with the anaerobic acidification tank 1 through a pipeline and a lifting pump 12. In one embodiment, the coarse grid has a pore size of 50-100mm, which allows removal of large particulate matter and part of the suspended matter entering the device, avoiding clogging the lift pump; the aperture of the fine grid is 1.5-10mm, and small molecular substances in the sewage are further removed.
Specifically, the main reaction zone 31 includes a plurality of packing zones 311 and a conditioning zone 312 disposed between two adjacent packing zones 311. The sewage in the secondary sedimentation tank enters the filling area, the aeration system is connected with the filling area to provide an oxygen source and prevent the filling from hardening, in one implementation mode, a backflushing system is further arranged in the main reaction area and connected above the main reaction area, the main reaction area is inflated through the air pump, the generated sludge is flushed to the bottom of the main reaction area by utilizing the sewage staying in the main reaction area, and the sludge is conveyed into the sludge concentration tank through the sludge recovery pipeline.
More specifically, a plurality of graphite electrodes (not shown in the figure) and iron carbon packing columns 311a are arranged in the packing region 311, the graphite electrodes are connected to the iron carbon packing columns 311a and are connected with the regulated power supply 13 through wires, the iron carbon packing columns 311a are arranged in parallel, one ends of the iron carbon packing columns 311a are fixed on the pool wall of the packing region 311, and the fixed ends of the adjacent iron carbon packing columns 311a are staggered with each other to form a baffling structure. Generally, the graphite electrode is not in direct contact with sewage, and is generally sealed by metal with good conductivity, so that the sewage is prevented from corroding the electrode, and the service life of the electrode is prevented from being influenced. The iron-carbon-iron-carbon filler column is arranged in a baffling mode, so that the flow of sewage can be prolonged, and the purifying effect can be improved; preferably, the iron-carbon ratio of the iron-carbon packing column is not less than 3.
Further, a stirrer 14 is also arranged in the anaerobic acidification tank 1. The stirring paddle of the stirrer is arranged at the lower part of the anaerobic acidification tank, so that the returned sludge can be better dispersed into sewage, and degradation of organic matters which are difficult to degrade in the anaerobic process is improved by using the returned sludge.
It is worth to say that all be equipped with the flowmeter and the valve on the pipeline in this device for the control and the control of pipeline flow.
An application of an A/O combined micro-electric field-Fe/C process reinforced dephosphorization device, comprising:
the sewage passes through the coarse grille well 10 to filter out large particles and part of suspended matters such as leafs, plastic foam and the like;
mixing the filtered sewage with a pH regulator, and then lifting the mixture to an anaerobic acidification tank 1 by a lifting pump 12 for acidification, wherein the sewage stays in the anaerobic acidification tank 1 for 4.5-10 hours generally, and most of organic matters are acidified and degraded after the sewage is hydrolyzed and acidified;
the acidified sewage is filtered by a fine grid well 11 to remove fine impurities such as bone residues, scraps and the like in a kitchen, and then enters a primary sedimentation tank 6 for preliminary sedimentation, the precipitated sludge is conveyed to a sludge concentration tank 33 for recycling, the sewage enters an intermittent aeration tank 2 for biological denitrification and dephosphorization, the gas-water ratio in the intermittent aeration tank 2 is 5-10:1 for 1-2h per aeration, aeration is stopped for 2-4h, and the total residence time is 4-6h;
the sewage after aeration treatment enters a secondary sedimentation tank 7 to further collect sludge, part of the collected sludge is returned to the anaerobic acidification tank 1, and the rest is conveyed to a sludge concentration tank 33 for recovery, wherein the return ratio is 0.5+/-0.2;
the sewage after precipitation in the secondary sedimentation tank 7 enters the micro-electric field-Fe/C reaction zone 3 for deep dephosphorization, the sewage firstly enters the regulating zone 312 of the main reaction zone 31, then enters the baffled iron-carbon filler zone 311, and the current density in the micro-electric field is set to be 10-15mA/cm 2 The micropore aeration amount is more than or equal to 10L/min, the sewage residence time is 40-180min, the iron-carbon filler is rapidly converted into ferric ions under the strengthening effect of a micro electric field and aeration, and the total reaction formula of the iron-carbon internal electrolysis is as follows:
，E 0 （Fe 3+ /Fe）= -1.21V；
because Fe/C has a redox potential difference of 1.21V, under the strengthening action of a micro electric field, the electron transfer speed is increased, and iron ions are formed to be rapidly complexed with phosphate in wastewater to form ferric phosphate precipitates.
Coprecipitation produces basic ferric phosphate:
；
；
further, the sewage treated in the micro electric field-Fe/C reaction zone 3 enters the disinfection tank 32, is disinfected by disinfectant sodium hypochlorite and is discharged to a river through the water outlet weir 321 above the disinfection tank 32, and the collected sludge is conveyed to a sludge concentration tank for dehydration and recovery. The treated sewage can reach the first grade A standard of surface water, and completely meets the national requirement on the phosphorus content of domestic sewage after treatment.
It will be understood that equivalents and modifications will occur to those skilled in the art in light of the present invention and their spirit, and all such modifications and substitutions are intended to be included within the scope of the present invention as defined in the following claims.
Claims (6)
1. The A/O combined micro-electric field-Fe/C process reinforced dephosphorization device is characterized by comprising an anaerobic acidification tank, an intermittent aeration tank and a micro-electric field-Fe/C reaction zone which are sequentially arranged, and further comprising an aeration system, wherein the intermittent aeration tank and the micro-electric field-Fe/C reaction zone are respectively connected with an aeration system through pipelines, the micro-electric field-Fe/C reaction zone comprises a main reaction zone, a disinfection tank and a sludge concentration tank which are sequentially arranged, and the intermittent aeration tank is connected to the upper part of the sludge concentration tank through a first backflow pipeline; the device also comprises a primary sedimentation tank arranged between the anaerobic acidification tank and the intermittent aeration tank, wherein the bottom of the primary sedimentation tank is connected with the sludge concentration tank through a pipeline; the device also comprises a secondary sedimentation tank arranged between the intermittent aeration tank and the micro-electric field-Fe/C reaction zone, wherein the bottom of the secondary sedimentation tank is connected with the anaerobic acidification tank through a second backflow pipeline and is connected with the sludge concentration tank through a sludge recovery pipeline; the main reaction zone comprises a plurality of filling zones and a regulating zone arranged between two adjacent filling zones; the graphite electrode is connected to the iron carbon filling column and connected with the stabilized power supply through wires, the iron carbon filling column is arranged in parallel, one end of the iron carbon filling column is fixed on the tank wall of the filling region, and the fixed ends of the adjacent iron carbon filling columns are staggered with each other to form a baffling structure.
2. The enhanced dephosphorization device of the A/O combined micro-electric field-Fe/C process according to claim 1, wherein two intermittent aeration tanks are connected in series.
3. The a/O combined micro electric field-Fe/C process enhanced dephosphorization apparatus according to claim 1, further comprising a coarse grid well disposed in front of the anaerobic acidification tank and a fine grid well disposed between the anaerobic acidification tank and the primary sedimentation tank, the coarse grid well being connected to the anaerobic acidification tank by a pipe and a lift pump.
4. The a/O combined micro-electric field-Fe/C process enhanced dephosphorization apparatus according to claim 1, wherein a stirrer is further provided in the anaerobic acidification tank.
5. Use of an a/O combined micro-electric field-Fe/C process enhanced dephosphorization apparatus as claimed in any one of claims 1 to 4, characterized in that it comprises:
s001, filtering large particles and part of suspended matters from the sewage through a coarse grid well;
s002, mixing the filtered sewage with a pH regulator, and then lifting the mixture to anaerobic acidification Chi Suanhua by a lifting pump;
s003, the acidified sewage enters a primary sedimentation tank for preliminary sedimentation after passing through a fine grid well, the precipitated sludge is conveyed to a sludge concentration tank for recycling, the sewage enters an intermittent aeration tank for biological denitrification and dephosphorization, the aeration time is 1-2h, the intermittent time is 2-4h, and the total residence time is 4-6h;
s004, the sewage treated in the step S003 enters a secondary sedimentation tank to further collect sludge, part of the collected sludge flows back to an anaerobic acidification tank, and the rest of the sludge is conveyed to a sludge concentration tank to be recovered;
s005 the precipitated sewage enters a micro-electric field-Fe/C reaction zone to deeply remove phosphorus, and the current density in the micro-electric field is set to be 10-15mA/cm 2 The micropore aeration is more than or equal to 10L/min, and the sewage retention time is 40-180min;
s006, sewage subjected to electrochemical deep dephosphorization enters a disinfection tank, is disinfected and discharged, and the collected sludge is conveyed to a sludge concentration tank for dehydration and recovery.
6. The use of an a/O combined micro-electric field-Fe/C process enhanced dephosphorization apparatus according to claim 5, wherein the iron to carbon ratio of the iron carbon packing column in the micro-electric field-Fe/C reaction zone is not less than 3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811180181.5A CN109231673B (en) | 2018-10-10 | 2018-10-10 | A/O combined micro-electric field-Fe/C reinforced dephosphorization device and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811180181.5A CN109231673B (en) | 2018-10-10 | 2018-10-10 | A/O combined micro-electric field-Fe/C reinforced dephosphorization device and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109231673A CN109231673A (en) | 2019-01-18 |
| CN109231673B true CN109231673B (en) | 2023-09-08 |
Family
ID=65052510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811180181.5A Active CN109231673B (en) | 2018-10-10 | 2018-10-10 | A/O combined micro-electric field-Fe/C reinforced dephosphorization device and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109231673B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111499101B (en) * | 2020-04-27 | 2021-08-24 | 中南林业科技大学 | Organic sewage step purifier |
| CN116199338A (en) * | 2022-12-29 | 2023-06-02 | 浙江清华长三角研究院 | Advanced denitrification and dephosphorization module and method for rural domestic sewage household facility |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103910470A (en) * | 2014-04-04 | 2014-07-09 | 南京大学盐城环保技术与工程研究院 | System and method for treating comprehensive wastewater in chemical industrial parks |
| CN204779252U (en) * | 2015-06-26 | 2015-11-18 | 佛山市新泰隆环保设备制造有限公司 | Domestic sewage's device is handled to fe -C+A2O technology |
| CN209161759U (en) * | 2018-10-10 | 2019-07-26 | 佛山市新泰隆环保设备制造有限公司 | A kind of A/O joint electric microfield-Fe/C reinforced phosphor-removing device |
-
2018
- 2018-10-10 CN CN201811180181.5A patent/CN109231673B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103910470A (en) * | 2014-04-04 | 2014-07-09 | 南京大学盐城环保技术与工程研究院 | System and method for treating comprehensive wastewater in chemical industrial parks |
| CN204779252U (en) * | 2015-06-26 | 2015-11-18 | 佛山市新泰隆环保设备制造有限公司 | Domestic sewage's device is handled to fe -C+A2O technology |
| CN209161759U (en) * | 2018-10-10 | 2019-07-26 | 佛山市新泰隆环保设备制造有限公司 | A kind of A/O joint electric microfield-Fe/C reinforced phosphor-removing device |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109231673A (en) | 2019-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101708917B (en) | Device and method for integrally processing garbage percolate | |
| CN108996808B (en) | Biochemical combined treatment process and equipment for degradation-resistant concentrated water in steel industry | |
| WO2023065653A1 (en) | High-efficiency denitrification and dephosphorization process system for mariculture tail water treatment | |
| CN103979750B (en) | Reactor for sewage treatment and phosphorus recovery and method for recovering phosphorus by using same | |
| CN206486407U (en) | A kind of livestock breeding wastewater processing system | |
| CN114084998A (en) | Rubbish transfer station waste water and domestic sewage cooperative processing system | |
| CN113620541A (en) | System and method for cooperatively treating brewing wastewater and low-carbon domestic sewage | |
| CN210855718U (en) | Novel rural sewage treatment system | |
| CN109231673B (en) | A/O combined micro-electric field-Fe/C reinforced dephosphorization device and application thereof | |
| WO2020238021A1 (en) | Intensive modular combined aquaculture tail water treatment system | |
| CN113955899A (en) | Efficient paint production wastewater treatment system and process | |
| CN204185292U (en) | Three-dimensional tapered aeration sewage disposal aerobic reactor | |
| CN106517699B (en) | Efficient domestic garbage sewage system and process thereof | |
| CN209161759U (en) | A kind of A/O joint electric microfield-Fe/C reinforced phosphor-removing device | |
| CN105621819B (en) | One heavy metal species Tailings Dam percolate multiplexed combination ecological treatment system and method | |
| CN210261454U (en) | Mariculture tail water treatment system | |
| CN218811022U (en) | Integrated treatment device for deep denitrification of garbage penetration filtrate | |
| CN208071544U (en) | A kind of railway communication system production wastewater treatment system | |
| CN203866153U (en) | Improved reinforced A2/O denitrogenation and dephosphorization treating device for municipal sewage | |
| CN206255960U (en) | A kind of city domestic sewage processing system | |
| CN217103411U (en) | Mobile photoelectric complementary sewage deep purification system | |
| CN215592879U (en) | System for cooperatively treating brewing wastewater and low-carbon domestic sewage | |
| CN205856266U (en) | Large-scale integrated sewage treating apparatus | |
| CN210261455U (en) | Intensive modular combined aquaculture tail water treatment system | |
| CN210261261U (en) | Efficient nitrogen and phosphorus removal system for treating aquaculture tail water |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 528500 Yangmei West District, Cangjiang Industrial Park, Gaoming District, Foshan City, Guangdong Province Applicant after: Guangdong xintailong Environmental Protection Group Co.,Ltd. Address before: 528500 Yangmei West District, Cangjiang Industrial Park, Gaoming District, Foshan City, Guangdong Province Applicant before: FOSHAN XINTAILONG ENVIRONMENTAL PROTECTION EQUIPMENT MANUFACTURING CO.,LTD. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |