CN209481424U - A kind of sewage plant Tailwater Depth is handled to the system of III class water quality standard of earth's surface - Google Patents
A kind of sewage plant Tailwater Depth is handled to the system of III class water quality standard of earth's surface Download PDFInfo
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- CN209481424U CN209481424U CN201822230215.9U CN201822230215U CN209481424U CN 209481424 U CN209481424 U CN 209481424U CN 201822230215 U CN201822230215 U CN 201822230215U CN 209481424 U CN209481424 U CN 209481424U
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Abstract
The utility model discloses a kind of sewage plant Tailwater Depths to handle to the system of III class water quality standard of earth's surface, including ultrafiltration apparatus, reverse osmosis unit, denitrification filter pool, nitrification filter tank, potassium permanganate composites, fibre turntable filter chamber, sludge concentration tank；Sewage plant tail water initially enters ultrafiltration apparatus, macromolecular colloid substance is removed by hyperfiltration membrane assembly, water purification flows into reverse osmosis unit, passes through inorganic ions, colloidal substance and the macromolecular solute in reverse osmosis membrane assembly trap water, producing water water quality is higher than III class water quality standard of earth's surface, qualified discharge；The concentrated water of ultrafiltration and reverse osmosis output is discharged into denitrification filter pool, enters nitrification filter tank later, carries out the removing of total nitrogen by nitrification and denitrifying effect, and further decrease COD content；Processed concentrated water enters the removal that potassium permanganate composites carry out total phosphorus, and water outlet enters fibre turntable filter chamber, further decreases concentration of suspension by filter-cloth filtering, promotes water quality, water outlet meets III class water quality standard of earth's surface, qualified discharge.
Description
Technical field
The utility model belongs to environmental technology field, is related to a kind of system of advanced treatment of wastewater, and in particular to a kind of dirt
Water factory's Tailwater Depth is handled to the system of III class water quality standard of earth's surface.
Background technique
With the development of human society, the yield of all kinds of waste water increases therewith.China's major part municipal sewage plant is general
Municipal wastewater is handled using traditional biochemical method, water outlet can reach level-one A or B mark substantially, but still contain a certain concentration in water outlet
Nutriment such as total nitrogen, ammonia nitrogen, total phosphorus, COD, excessive nitrogen P elements, which are emitted into natural water, will will lead to the rich battalion of water body
Feedingization generates larger threat to surrounding body environment and neighbouring resident.For the call of active response country, the people are ensured to full capacity
And the health and safety of ecological environment, realize the sustainable development of the mankind, municipal wastewater treatment plant has urgent tail water to propose mark requirement.
It is directed to the advanced treatment process of tail water produced by municipal sewage treatment plant at present, there is following several method: (1) biochemical method, it is such as artificial
Wetland, oxidation pond；(2) physical method, such as activated carbon adsorption, resin adsorption, membrane filtration process, (3) chemical method, as electrolysis nitrogen,
Redox, dosing dephosphorization.
Traditional biochemical method land occupation is larger, is not suitable for the system that there is stringent land used limitation at scene, and to low concentration in water
Nitrogen phosphorus ligands it is ineffective；Active carbon can adsorb organic pollutant, reduction COD in waste water, but large-scale use will meet
Face useless charcoal regeneration and handling problems；Resin adsorption denitrification effect is preferable, but there are the problems that a large amount of regeneration liquid wastes are urgently disposed, easily
Cause secondary pollution.Electrolysis nitrogen method nitric efficiency is affected by electric current factor, and energy consumption is larger, has no large scale industry at present
Change production instance, oxidation-reduction method denitrogenation can generate by-product and equally cause secondary pollution.
A part of COD, suspended matter, colloid etc. can be effectively removed using ultrafiltration membrance filter technique, using reverse osmosis membrane filtration
Technique can remove most dissolved salts, microorganism, organic matter, heavy metal ion, virus etc., while use above two film
Filtering technique carries out advanced treating to municipal wastewater plant tail water, and water outlet quality is higher than III class water quality standard of earth's surface, but there are still double films
Discharge the problem of concentrated water disposition.
Due to ultrafiltration -- contain a large amount of nitrogen P elements, organic pollutant in the concentrated water of reverse osmosis double membrane processing method discharges,
If the disposal difficulties of concentrated water can not be efficiently solved, bi-membrane method is difficult to promote and apply in advanced treatment of wastewater field.
Utility model content
In order to solve the above technical problems, the utility model provides a kind of sewage plant Tailwater Depth and handles to earth's surface III
The system of class water quality standard.
The technical scheme adopted by the utility model is a kind of sewage plant Tailwater Depth is handled to III class water quality standard of earth's surface
System, it is characterised in that: including ultrafiltration apparatus, reverse osmosis unit, denitrification filter pool, nitrification filter tank, potassium permanganate composites, fiber
Turntable filter chamber, sludge concentration tank；
The level-one A or level-one B of municipal sewage plant discharge mark tail water, first by the promotion of intake pump, surpass into described
Device is filtered, macromolecular colloid substance is removed by built-in hyperfiltration membrane assembly, the water purification of the ultrafiltration apparatus output passes through high pressure
Pump is lifted into the reverse osmosis unit, passes through all kinds of ions, the colloidal substance in built-in reverse osmosis membrane assembly trap water
With macromolecular solute, producing water water quality is higher than III class water quality standard of earth's surface can in line lake and reservoir；The ultrafiltration apparatus and the reverse osmosis
The concentrated water of saturating device output is discharged into the denitrification filter pool, enters the nitrification filter tank later, passes through nitrification and denitrification
Effect the total nitrogen in concentrated water is removed, and further decrease COD content；Concentrated water that treated enters the high density
Sedimentation basin carries out the removal of total phosphorus, and the water outlet of the potassium permanganate composites flows into the fibre turntable filter chamber, passes through filter cloth
Filtering further decrease concentration of suspension in water, promote water quality, water outlet can meet III class water quality standard of earth's surface, and passing through suction pump will
Water extraction is produced, water mixing is produced with the reverse osmosis unit, realizes sewage plant Tailwater Depth and handle to III class water quality standard of earth's surface.
The denitrification filter pool, the nitrification filter tank, the potassium permanganate composites, the fibre turntable filter chamber
Necessary regular spoil disposal, excess sludge drain into the sludge concentration tank, and sludge is extracted through screw pump to plate and frame filter press, dehydration
Outward transport is handled afterwards.
The utility model has the characteristics that and the utility model has the advantages that using ultrafiltration membrane (0.001-0.1 microns of membrane aperture), reverse osmosis
The bi-membrane method that permeable membrane (0.0001-0.001 microns of membrane aperture) combines carries out advanced treating to sewage plant tail water, in certain pressure
Push under power, respectively by the filtration of above two membrane module, effectively remove most dissolved salts in water,
Microorganism, organic matter, nutrient (N, P), heavy metal ion, virus etc., effluent quality are higher than III class water quality standard of earth's surface；For
The concentrated water of double membrane process discharges, using the group technology of " denitrification filter pool+nitrification filter tank+potassium permanganate composites+turntable filter chamber "
It is handled, effectively eliminates the nitrogen P elements in concentrated water, while reducing water outlet COD and turbidity, water outlet meets earth's surface III
Class water quality standard, can be with reverse osmosis produced water mixing.Compared with prior art, bi-membrane method used by the utility model can be removed quickly
Water pollutant reaches even higher than III class water quality standard of earth's surface, bi-membrane method treatment process mature simple, high degree of automation, fortune
Row is convenient for management, producing water water quality is high.Meanwhile perfectly solving the nitrogen phosphorus member being enriched in concentrated water again to a series of processing of concentrated water
The removing problem of element, organic pollutant, outlet of the entire process system without any pollutant do not cause secondary pollution.
Whole system has many advantages, such as that stable effluent quality, occupied area are small, it is low to go out aqueous suspension, it is high to produce water quality, out
Water can stably reach or be higher than " water environment quality standard " (GB3838-2002) III class water quality standard.
Detailed description of the invention
Fig. 1: the system construction drawing of the utility model embodiment；
Fig. 2: the work flow diagram of the utility model embodiment.
In figure, 1. ultrafiltration apparatus, 2. reverse osmosis units, 3. denitrification filter pools, 4. nitrification filter tanks, 5. potassium permanganate composites,
6. fibre turntable filter chamber, 7. sludge concentration tanks, 8. intake pumps, 9. high-pressure pumps, 10. blowers, 11. aerators, 12. suction pumps,
13. screw pump, 14. plate and frame filter press.
Specific embodiment
Understand for the ease of those of ordinary skill in the art and implements the utility model, it is practical new to this with reference to the accompanying drawing
Type is described in further detail, it should be understood that and implementation example described herein is only used for describing and explaining the present invention,
It is not used to limit the utility model.
Referring to Fig.1, a kind of sewage plant Tailwater Depth provided by the utility model is handled to the system of III class water quality standard of earth's surface,
Including ultrafiltration apparatus 1, reverse osmosis unit 2, denitrification filter pool 3, nitrification filter tank 4, potassium permanganate composites 5, fibre turntable filter chamber 6,
Sludge concentration tank 7；
The level-one A or level-one B of municipal sewage plant discharge mark tail water, pass through the promotion of intake pump 8 first, into ultrafiltration apparatus
1, macromolecular colloid substance is removed by built-in hyperfiltration membrane assembly, the water purification of 1 output of ultrafiltration apparatus passes through the promotion of high-pressure pump 9
Into reverse osmosis unit 2, by all kinds of ions, colloidal substance and the macromolecular solute in built-in reverse osmosis membrane assembly trap water,
Producing water water quality is higher than III class water quality standard of earth's surface can in line lake and reservoir；The concentrated water of 2 output of ultrafiltration apparatus 1 and reverse osmosis unit is discharged into anti-nitre
Change filter tank 3, enter nitrification filter tank 4 later, the total nitrogen in concentrated water is removed by nitrification and denitrifying effect, goes forward side by side one
Step reduces COD content；Concentrated water that treated enters the removal that potassium permanganate composites 5 carry out total phosphorus, the water outlet of potassium permanganate composites 5
Fibre turntable filter chamber 6 is flowed into, concentration of suspension in water is further decreased by the filtering of filter cloth, promotes water quality, water outlet can meet
III class water quality standard of earth's surface will produce water extraction by suction pump 12, and produce water mixing with reverse osmosis unit 2, realize sewage plant tail water
Advanced treating is to III class water quality standard of earth's surface.
Denitrification filter pool 3, nitrification filter tank 4, potassium permanganate composites 5, the necessary regular spoil disposal of fibre turntable filter chamber 6, it is remaining dirty
Mud drains into sludge concentration tank 7, and sludge is extracted through screw pump 13 to plate and frame filter press 14, and outward transport is handled after dehydration.
Multiple groups inner pressed tubular membrane component is equipped in the ultrafiltration apparatus 1 of the present embodiment, film wire material is PVDF, putamina material
For PP, membrane support material is carbon steel anti-corrosion, and membrane aperture is 0.001-0.1 microns, intake pressure 0.30-0.45Mpa, operation pressure
It is reduced to 0.06-0.10Mpa, produces water SDI value < 2, producing water ratio 90%-95%, operational mode is cross-flow filtration.Ultrafiltration apparatus 1 needs
Regular backwash, chemical cleaning, backwash frequency are that every 10 ~ 15min is primary, and chemical cleaning frequency is 1 ~ 2 month primary.
Multi-stage reverse osmosis membrane module is equipped in the reverse osmosis unit 2 of the present embodiment, membrane material is cellulose acetate, putamina material
Matter is PP, and membrane support material is carbon steel anti-corrosion, and membrane aperture is 0.0001-0.001 microns, intake pressure 1.0-2.0Mpa, is taken off
Salt rate >=99%, producing water ratio 75%-85%.Reverse osmosis unit 2 determines whether according to the fouling condition of membrane module, transmembrane pressure difference
Need chemical cleaning.
Filling combination filtrate, packed height are 2.0-2.5 meters in the denitrification filter pool 3 of the present embodiment and nitrification filter tank 4,
Activated sludge concentration is 3000-4000mg/L, and 3 hydraulic loading of denitrification filter pool is 6.0-12.0m3/ (m2.h), the residence time is
20-30min；Nitrification 4 hydraulic loading of filter tank is 3.0-12.0m3/ (m2.h), residence time 30-45min；3 He of denitrification filter pool
Nitrification 4 bottom of filter tank is equipped with aerator 11, is supplied oxygen by blower 10, and dense by dissolved oxygen in valve regulated control pond
Degree.
Coagulating basin, flocculation basin, inclined-tube sedimentation tank are equipped in the potassium permanganate composites 5 of the present embodiment, in coagulating basin, flocculation basin
Successively dosing coagulant PFS, flocculant PAM.
It is equipped with the full immersion fibre turntable of multiple groups in the fibre turntable filter chamber 6 of the present embodiment, 2-3 meters of disk diameter, main body
Component material is 304 stainless steels, and filter cloth material is polyester, and filtering accuracy is 10-100 microns, rotary speed 1-3rpm, maximum
Hydraulic loss is 0.3 meter, out water suspension content < 5mg/L.
The system of the present embodiment can realize PLC Automatic Control.
The utility model uses the bi-membrane method that " ultrafiltrationmembrane process+reverse osmosis membrane " combines and carries out advanced treatment of wastewater,
And double films are carried out using the process form that " denitrification filter pool method+nitrification filter tank method+potassium permanganate composites+turntable filter chamber " combines
Method discharges the processing of concentrated water, and particular technique principle is as follows:
Sewage plant tail water is 0.001-0.1 microns by multiple groups membrane aperture by being lifted into ultrafiltration apparatus, ultrafiltration apparatus
Hyperfiltration membrane assembly composition, under pressure motive force, sewage flows through film surface, and the water and small molecule solute less than fenestra penetrate film,
Referred to as water purification；It is trapped greater than the solute of fenestra and solute group, is discharged with water flow, becomes concentrated water.The produced water purification of ultrafiltration apparatus
Reverse osmosis unit is lifted by high-pressure pump, and reverse osmosis unit is 0.0001-0.001 microns reverse osmosis by multiple groups membrane aperture
Membrane module composition applies pressure to the water of film side under pressure motive force, when pressure is more than its osmotic pressure, solvent meeting
Make inverse osmosis against the direction of naturally osmotic.To the solvent that the low-pressure side in film is penetrated, i.e. water purification, high-pressure side obtains
The solution of concentration, i.e. concentrated water.By reverse osmosis membrane can all kinds of ions, colloidal substance and macromolecular solute in trap water, water outlet
Water quality is higher than III class water quality standard of earth's surface can in line lake and reservoir；The concentrated water of ultrafiltration apparatus and reverse osmosis unit output contains higher concentration
Nitrogen P elements and pollutant, concentrated water are discharged into denitrification filter pool first, enter nitrification filter tank, the high-concentration activated sludge in pond later
Under the action of, while dissolved oxygen concentration is supplied oxygen and controlling using blower, by nitrification and denitrifying effect to the ammonia in concentrated water
Nitrogen, total nitrogen are removed, and further decrease COD content；Concentrated water that treated enters potassium permanganate composites, adds coagulation herein
Agent PFS, flocculant PAM, by chemical reaction so that the P elements in sewage form precipitating and enter in sludge, to realize dirt
The removal of total phosphorus in water, potassium permanganate composites water outlet flow into fibre turntable filter chamber, are further decreased by the filtering of compound filter cloth
Concentration of suspension in water promotes water quality, so as to complete a series of processing of bi-membrane method concentrated water, finally by suction pump by water purification
Extraction, with reverse osmosis produced water mixing, realizes sewage plant Tailwater Depth and handles to the process of III class water quality standard of earth's surface.
See Fig. 2, the workflow of the utility model, comprising the following steps:
Step 1: being intake using level-one A or level-one B the mark tail water of sewage plant discharge as system, first mentioning by intake pump 8
It rises, into ultrafiltration apparatus 1, macromolecular colloid substance is removed by built-in hyperfiltration membrane assembly, the water purification of 1 output of ultrafiltration apparatus is led to
That crosses high-pressure pump 9 is lifted into reverse osmosis unit 2；
The necessary periodically backwash, chemical cleaning of ultrafiltration apparatus (1), backwash frequency are that every 10 ~ 15min is primary, chemical cleaning frequency
Rate is 1 ~ 2 month primary；Reverse osmosis unit (2) determines the need for chemistry according to the fouling condition of membrane module, transmembrane pressure difference
Cleaning.
Step 2: in reverse osmosis unit 2, passing through all kinds of ions, the colloidal substance in built-in reverse osmosis membrane assembly trap water
With macromolecular solute, producing water water quality is higher than III class water quality standard of earth's surface can in line lake and reservoir；2 output of ultrafiltration apparatus 1 and reverse osmosis unit
Concentrated water be discharged into denitrification filter pool 3；
Step 3: the water outlet gravity flow of denitrification filter pool 3 enters nitrification filter tank 4, the content control of dissolved oxygen in denitrification filter pool 3
For 0.5 ~ 1.0mg/L, the content control for nitrifying dissolved oxygen in filter tank 4 is 2.0 ~ 4.0mg/L, passes through nitrification and denitrifying effect
Total nitrogen in concentrated water is removed, and further decreases COD content；
Step 4: concentrated water that treated enters potassium permanganate composites 5, and coagulant PFS dosage is 30-50mg/L, wads a quilt with cotton herein
Solidifying agent PAM is 1-5mg/L, and the sludge settling time is 1-2h, hydraulic loading 5-8m3/ (m2.h), carried out by coagulating sedimentation total
The removal of phosphorus, water outlet flow into fibre turntable filter chamber 6；
Step 5: in fibre turntable filter chamber 6, concentration of suspension in water being further decreased by the filtering of filter cloth, promotes water
Matter, water outlet can meet III class water quality standard of earth's surface, will produce water extraction by suction pump 12, and produce water mixing with reverse osmosis unit 2, realize
Sewage plant Tailwater Depth is handled to III class water quality standard of earth's surface.
Step 6: denitrification filter pool 3, nitrification filter tank 4, potassium permanganate composites 5, the necessary regular spoil disposal of fibre turntable filter chamber 6,
Excess sludge drains into sludge concentration tank 7, and sludge is extracted through screw pump 13 to plate and frame filter press 14, and outward transport is handled after dehydration.
It should be understood that the part that this specification does not elaborate belongs to the prior art.
It should be understood that the above-mentioned description for preferred embodiment is more detailed, can not therefore be considered to this
The limitation of utility model patent protection scope, those skilled in the art are not departing under the enlightenment of the utility model
Under ambit protected by the claims of this utility model, replacement or deformation can also be made, the utility model is each fallen within
Within protection scope, the utility model is claimed range and should be determined by the appended claims.
Claims (7)
1. a kind of sewage plant Tailwater Depth is handled to the system of III class water quality standard of earth's surface, it is characterised in that: including ultrafiltration apparatus
(1), reverse osmosis unit (2), denitrification filter pool (3), nitrification filter tank (4), potassium permanganate composites (5), fibre turntable filter chamber (6),
Sludge concentration tank (7)；
The ultrafiltration apparatus (1) is connected to by pipeline with intake pool；The ultrafiltration apparatus (1) is filtered by pipeline and the denitrification
Pond (3) connection, as concentrated water conveyance conduit；The ultrafiltration apparatus (1) is connected by another pipeline and the reverse osmosis unit (2)
It is logical, as production water conveyance conduit；The reverse osmosis unit (2) is in communication with the outside by pipeline, as qualified discharge water delivery pipe
Road；The reverse osmosis unit (2) is connected to by another pipeline with the denitrification filter pool (3), as concentrated water conveyance conduit；It is described
Denitrification filter pool (3), nitrification filter tank (4), potassium permanganate composites (5), fibre turntable filter chamber (6) are sequentially communicated by pipeline；Institute
It states fibre turntable filter chamber (6) to be in communication with the outside by pipeline, as qualified discharge water conveyance conduit；
The denitrification filter pool (3), nitrification filter tank (4), potassium permanganate composites (5), fibre turntable filter chamber (6) bottom pass through respectively
Pipeline is connected to the sludge concentration tank (7).
2. sewage plant Tailwater Depth according to claim 1 is handled to the system of III class water quality standard of earth's surface, it is characterised in that:
Several groups inner pressed tubular membrane component is equipped in the ultrafiltration apparatus (1), film wire material is PVDF, and putamina material is PP, film branch
Frame material is carbon steel anti-corrosion, and membrane aperture is 0.001-0.1 microns, intake pressure 0.30-0.45Mpa, and operation pressure drop is 0.06-
0.10Mpa produces water SDI value < 2, and producing water ratio 90%-95%, operational mode is cross-flow filtration.
3. sewage plant Tailwater Depth according to claim 1 is handled to the system of III class water quality standard of earth's surface, it is characterised in that:
Multi-stage reverse osmosis membrane module is equipped in the reverse osmosis unit (2), membrane material is cellulose acetate, and putamina material is PP, film branch
Frame material is carbon steel anti-corrosion, and membrane aperture is 0.0001-0.001 microns, intake pressure 1.0-2.0Mpa, and salt rejection rate >=99% produces
Water rate is 75%-85%.
4. sewage plant Tailwater Depth according to claim 1 is handled to the system of III class water quality standard of earth's surface, it is characterised in that:
Filling combination filtrate, packed height are 2.0-2.5 meters in the denitrification filter pool (3) and the nitrification filter tank (4), and activity is dirty
Mud concentration is 3000-4000mg/L；Denitrification filter pool (3) hydraulic loading is 6.0-12.0m3/ (m2.h), the residence time is
20-30min；The nitrification filter tank (4) hydraulic loading is 3.0-12.0m3/ (m2.h), residence time 30-45min；It is described anti-
Nitrification filter tank (3) and nitrification filter tank (4) bottom are equipped with aerator (11), are supplied oxygen by blower (10), and pass through valve
Door adjusts dissolved oxygen concentration in control pond.
5. sewage plant Tailwater Depth according to claim 1 is handled to the system of III class water quality standard of earth's surface, it is characterised in that:
It is equipped with coagulating basin, flocculation basin, inclined-tube sedimentation tank in the potassium permanganate composites (5), is successively added in the coagulating basin, flocculation basin
There are coagulant PFS, flocculant PAM.
6. sewage plant Tailwater Depth according to claim 1 is handled to the system of III class water quality standard of earth's surface, it is characterised in that:
It is equipped with the full immersion fibre turntable of several groups in the fibre turntable filter chamber (6), 2-3 meters of disk diameter, main element material
For 304 stainless steels, filter cloth material is polyester, and filtering accuracy is 10-100 microns, rotary speed 1-3rpm, maximum hydraulic loss
It is 0.3 meter, water suspension content < 5mg/L out.
7. sewage plant Tailwater Depth described in -6 any one is handled to the system of III class water quality standard of earth's surface according to claim 1,
It is characterized by: the system is also configured with screw pump (13), plate and frame filter press (14)；The interior sludge of the sludge concentration tank (7)
It extracts through the screw pump (13) to the plate and frame filter press (14), outward transport is handled after dehydration.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201822230215.9U CN209481424U (en) | 2018-12-28 | 2018-12-28 | A kind of sewage plant Tailwater Depth is handled to the system of III class water quality standard of earth's surface |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109467285A (en) * | 2018-12-28 | 2019-03-15 | 湖北君集水处理有限公司 | A system and method for advanced treatment of tail water of sewage treatment plant to the surface class III water standard |
| CN117929375A (en) * | 2024-03-21 | 2024-04-26 | 武汉奥恒胜科技有限公司 | Water quality detection method and water quality detector based on image processing |
-
2018
- 2018-12-28 CN CN201822230215.9U patent/CN209481424U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109467285A (en) * | 2018-12-28 | 2019-03-15 | 湖北君集水处理有限公司 | A system and method for advanced treatment of tail water of sewage treatment plant to the surface class III water standard |
| CN117929375A (en) * | 2024-03-21 | 2024-04-26 | 武汉奥恒胜科技有限公司 | Water quality detection method and water quality detector based on image processing |
| CN117929375B (en) * | 2024-03-21 | 2024-06-04 | 武汉奥恒胜科技有限公司 | Water quality detection method and water quality detector based on image processing |
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Address after: 430074 No. 3 Huangjiahu University Town, Hongshan District, Wuhan City, Hubei Province Patentee after: Junji Environmental Technology Co.,Ltd. Address before: 430074 No. 3 Huangjiahu University Town, Hongshan District, Wuhan City, Hubei Province Patentee before: HUBEI JUNJI WATER TREATMENT Co.,Ltd. |