CN109694159A - A kind of combination treatment method of sewage - Google Patents
A kind of combination treatment method of sewage Download PDFInfo
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- CN109694159A CN109694159A CN201811469019.5A CN201811469019A CN109694159A CN 109694159 A CN109694159 A CN 109694159A CN 201811469019 A CN201811469019 A CN 201811469019A CN 109694159 A CN109694159 A CN 109694159A
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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
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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
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/44—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis
- C02F1/444—Treatment of water, waste water, or sewage by dialysis, osmosis or reverse osmosis by ultrafiltration or microfiltration
-
- 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
- C02F1/48—Treatment of water, waste water, or sewage with magnetic or electric fields
- C02F1/488—Treatment of water, waste water, or sewage with magnetic or electric fields for separation of magnetic materials, e.g. magnetic flocculation
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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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1236—Particular type of activated sludge installations
- C02F3/1257—Oxidation ditches
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- 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)
- Biological Treatment Of Waste Water (AREA)
Abstract
The invention discloses a kind of combination treatment methods of sewage to reach the sewage drainage standard after mentioning mark by the sewage Jing Guo primary treatment successively by improvement oxidation ditch processing unit, magnetic flocculation precipitation process unit, immersion ultra filtration unit.It includes hanging on the intracorporal multiple high-performance bio modules in the aerobic part pond of oxidation ditch that oxidation ditch processing unit is improved in processing method of the present invention, and flow guide system is made to form local water circulation state around high-performance bio filler in conjunction with aerating system；High-performance bio filler is hung in load-carrying members main body, realizes efficiently concentrating water treatment micro-organism, improves biochemical treatment efficiency；Magnetic flocculation precipitation process unit accelerates floc settling velocity, is purified water body quickly, is discharged as clear as crystal；Immersion ultra filtration unit produces water by negative-pressure ward, has the characteristics that loading density is high, anti-fouling performance is good, backwash gas is evenly distributed, stable water outlet.
Description
Technical field
The present invention relates to water-treatment technology fields, specifically, being related to a kind of combination treatment method of sewage.
Background technique
With Urbanization in China and the accelerated development of industry, environmental issue, especially municipal sewage treatment are had become
The hot spot of various countries' research.It flows into rivers, lake or underground water however as a large amount of life with trade effluent, is caused to water body
Serious pollution, has an impact fishery water, domestic water etc..Municipal sewage pollution have become restrict national development it is important because
One of element, therefore country is also more stringent to the discharge standard of sewage treatment plant.
More and more municipal sewage plants are that response national energy conservation and emission reduction is called, and discharge standard is by original " cities and towns
Wastewater Treatment discharge standard " the level-one B standard in GB18918-2002 is promoted to level-one A or each place standard.
To reach higher discharge standard, many sewage treatment plants have been unable to satisfy existing due to design reasons, original processing unit
It is required that so the mark transformation that mentions to sewage treatment plant is necessary.
Summary of the invention
In view of this, the present invention aiming at the problem that discharge standard, provides after existing sewage treatment plant is unable to satisfy and mentions mark
It is a kind of not influence original system operation, the combined sewage water processing method that occupied area is small, operation and maintenance are convenient, outlet effect is stable.
In order to solve the above-mentioned technical problem, the invention discloses a kind of combination treatment methods of sewage, will pass through at primary
The sewage of reason successively by improvement oxidation ditch processing unit, magnetic flocculation precipitation process unit, that is, reaches the sewage discharge after mentioning mark
Standard.
Further, improvement oxidation ditch processing unit includes hanging on the intracorporal multiple efficient lifes in the aerobic part pond of oxidation ditch
Object module.
Further, high-performance bio module packet is using load-carrying members main body made of SS304 stainless steel, load-carrying members main body
The top side that meets water be provided with flow guide system, the bottom of load-carrying members main body is equipped with two or more aerating systems, load-bearing
Main structure body hangs inside is by high-performance bio filler.
Further, the angle that meets water of flow guide system installation is 150 °.
Further, each aerating system is connected by aeration branch pipe with aeration supervisor.
Further, magnetic flocculation precipitation process unit includes that mixed reaction pond and the magnetic flocculation being connected to mixed reaction pond are heavy
Shallow lake pond, mixed reaction pond include the liquid alkaline mixing pit being sequentially communicated, PAC mixing pit, magnetic powder mixing pit and PAM mixing pit, and PAM is mixed
The water outlet for closing pond is connected with the water inlet of magnetic flocculation sedimentation basin, the base sludge of magnetic flocculation sedimentation basin export respectively with magnetic powder
Recovery system and magnetic powder mixing bottom of pond portion are connected, magnetic powder recovery system also respectively with magnetic powder mixing pit and sludge treating system phase
Connection.
Further, magnetic powder recovery system includes the magnetic powder clipper with the base sludge outlet of flocculation sedimentation tank,
Magnetic separator is connected on magnetic powder clipper, magnetic separator is connected with magnetic powder mixing pit and sludge treating system respectively.
Further, by immersion hyperfiltration treatment unit more preferably after magnetic flocculation precipitation process unit.
The sewage drainage standard mentioned after marking refers to local discharge standard and class III, IV class water of class that each place is put into effect
The discharge standard of body.
Compared with prior art, the present invention can be obtained including following technical effect:
1) it improves oxidation ditch processing unit: being contained by the dissolved oxygen of control biomembrane number of blocks, biomembrane block density, sewage
Amount effectively enhances biochemical section to the removal effect of COD, BOD, ammonia nitrogen, TN, also can effectively reduce after mentioning mark the dosage of carbon source and
The excess sludge production of system.Bottom exposure device is set in high-performance bio module and is also easy to produce sludgd deposition in oxidation ditch process to improve
The drawbacks of.Deflector is set in high-performance bio module, make install module the streamflow regime for being partially formed circulation so that sewage with
High-performance bio module comes into full contact with reaction.High-performance bio module is installed using hang, guarantees that installation does not influence oxidation ditch
It operates normally.
2) magnetic flocculation precipitation unit: this element floc settling velocity is accelerated to obtain water body quickly (up to 20~40m/h)
Purification is discharged as clear as crystal.Magnetic powder recovery system, which increases sand-catching apparatus, makes the rate of recovery increase to 99% or more.The transformation of sedimentation basin
So that system impact resistance becomes strong, system operation is more stable.
3) immersion ultra filtration unit: for only receive the treatment plant of sanitary sewage by improved active sludge processing unit,
After the transformation of magnetic flocculation precipitation unit, effluent index can achieve the emission request after mentioning mark substantially, but receive trade effluent
In water treatment plant, influent quality is complex, and unstable, and to guarantee system stable water outlet, it is recommended to increase immersion ultrafiltration lists
Member.
Certainly, it implements any of the products of the present invention it is not absolutely required to while reaching all the above technical effect.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes a part of the invention, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the floor map that oxidation ditch processing unit is improved in processing method of the present invention；
Fig. 2 is the 1-1 sectional view of Fig. 1；
Fig. 3 is the 2-2 sectional view of Fig. 1；
Fig. 4 is improvement oxidation ditch processing unit removal of carbon and nitrogen schematic diagram in processing method of the present invention；
Fig. 5 is to improve biofilm packing in oxidation ditch processing unit in processing method of the present invention to use aspect graph；
Fig. 6 is that biofilm packing biofilm effect picture in oxidation ditch processing unit is improved in processing method of the present invention；
Fig. 7 is the structure chart of magnetic flocculation precipitation unit in processing method of the present invention；
Fig. 8 is Central Plains of embodiment of the present invention process flow chart；
Fig. 9 is that the improved process flow chart of mark is mentioned in the embodiment of the present invention.
In figure, 1. load-carrying members main bodys, 2. flow guide systems, 3. aerating systems, 4. high-performance bio fillers, 5. aeration branch pipes,
6. aeration supervisor, 7. liquid alkaline mixing pits, 8.PAC mixing pit, 9. magnetic powder mixing pits, 10.PAM mixing pit, 11. magnetic flocculation precipitating
Pond, 12. magnetic powder clippers, 13. magnetic separators.
Specific embodiment
Carry out the embodiment that the present invention will be described in detail below in conjunction with embodiment, whereby to the present invention how application technology hand
Section solves technical problem and reaches the realization process of technical effect to fully understand and implement.
The invention discloses a kind of combination treatment methods of sewage, by the sanitary sewage Jing Guo primary treatment successively by changing
Good oxidation ditch processing unit, magnetic flocculation precipitation unit, that is, reach sewage drainage standard.
To keep above-mentioned purpose of the invention, characteristic advantages more obvious and easy to understand, with reference to the accompanying drawings and detailed description
The present invention is described in further detail.
As shown in Figure 1, Figure 2 and Figure 3, improvement oxidation ditch processing unit is intracorporal including hanging on the aerobic part pond of oxidation ditch
Multiple high-performance bio modules.
High-performance bio module packet is using load-carrying members main body 1 made of SS304 stainless steel, the top of load-carrying members main body 1
The side that meets water is provided with flow guide system 2 (deflector), and what flow guide system 2 was installed meet water, and angle is 150 ° that (this angle can effectively prevent water
Stream is flowed through from high-performance bio module top, loses the effect of high-performance bio module, and be conducive to water flow and enter high-performance bio module
Part recycle stream is formed under the action of bottom is aerated afterwards.Be conducive to microorganism in sewage and biomembrane frame to come into full contact with), load-bearing
The bottom of main structure body 1 is equipped with two or more aerating systems 3, and each aerating system 3 is led by aeration branch pipe 5 and aeration
Pipe 6 is connected, and 1 hangs inside of load-carrying members main body has high-performance bio filler 4.
Flow guide system 2 is combined with aerating system 3 makes 4 surrounding of high-performance bio filler form local water circulation state；Efficiently
Biologic packing material 4 is hung in load-carrying members main body 1, rope shape filler diameter 80mm, and clipping room realizes efficiently concentrating away from 100mm
Water treatment micro-organism improves biochemical treatment efficiency；High-performance bio filler denitrifying load is 0.1-0.5kgTN/ (m3/d)。
Improvement oxidation ditch processing unit is with oxygen mainly for the removal for mentioning COD, BOD, ammonia nitrogen, TN index in mark transformation
Change ditch and high-performance bio module is coupled as the biochemical processing process of core.Refer to and high-performance bio mould is installed in oxidation ditch processing unit
Block, with the biological treatment efficiency of enhanced oxidation ditch.High-performance bio filler in high-performance bio module, have hydrophilic one's own physical property,
Large specific surface area, easy to be filmed, bio-carrier intensity are high, corrosion-resistant, removal of carbon and nitrogen effect is good.Meet water side setting flow guide system, bottom
Portion sets aerating system.High-performance bio module mounting location is oxidation ditch aerobic section, and mounting means is suspension type, and installation number depends on
Inlet and outlet water water quality before and after Yu Tibiao.
It is mounted on the aerobic portion of oxidation ditch by way of suspension, on the one hand increases the biomass of oxidation ditch, on the other hand
Improve the advantage for making processing system have biofilm on the basis of traditional activated sludge process.
The advantage of high-performance bio module device:
1, the large specific surface area of filler provides sufficient bond area for water treatment micro-organism, substantially increases unit
Microorganism concn in space.To improve unit volume processing capacity, enhance system anti impulsion load ability.
2, biological attachment is grown, and generation time is long, and high-quality flora is abundant.Due to apposition growth, hydraulic detention time and life
The object residence time can realize independent control, and the microorganism on biomembrane will not be lost with water flow, and sludge retention time (SRT) is theoretical
On can be considered endless, this is growth generation time is longer, growth rate is slower microorganism, as nitrifier, denitrifying bacterium,
PolyP bacteria and anaerobic ammonia oxidizing bacteria etc. provide the possibility of growth and enrichment, realize dephosphorization denitrogenation wound for biomembrane packing technique
Condition is made.
3, sludge yield is low and water outlet settleability is good.The SRT longer of the technology provides item for higher organism existence procreation
Part.Since protozoan and metazoa are usually food with microorganism, to can be effectively controlled biofilm thickness, it is dirty to reduce activity
The generation of mud reduces sludge yield.Meanwhile biomembrane extracellular polymeric (EPS) content it is higher can to avoid the expansion of der Pilz,
Sludge settling property is good, is easy to be separated by solid-liquid separation.
4, biomembrane plays protective effect to microorganism, can be effectively reduced flow shear and venomous injurant is verified
The influence of microbial activity.Activated sludge based on suspension microorganism thallus is significantly stronger than to the adaptability of different water bodys
Method.
5, biological membranous layer forms dissolved oxygen gradient, provides condition for synchronization, short-cut nitrification and denitrification.
Synchronous, short-cut nitrification and denitrification advantage:
(1) usage amount to DO, energy saving can be reduced in the nitrification stage；
(2) carbon source usage amount is reduced in the denitrification stage, reduces operating cost；
The present invention improves oxidation ditch processing unit denitrogenation principle and feature:
The efficient denitrification filler has good biological selectivity, and the nitrifier of denitrification process is especially participated in obligate bacterium
There is good immobilization role with denitrifying bacterium.After the completion of Biofilm Colonization, organic and inorganic in high efficiency packing meets material
Uniform biomembrane will be will form in matter, form dissolution oxygen gradient, biomembrane outer layer is aerobic bacteria, and centre is anoxic bacteria, internal layer
For anaerobic bacteria, the A2/O technique in N number of microcosmic meaning can be formed, short distance and synchronous nitration and denitrification effect occurs, thus denitrogenation
Except the effect of carbon is greatly enhanced, the removal effect of total nitrogen will reach 85%-90%.
1 two kinds of nitration denitrification processes of table compare
Such as table 1, short distance nitration refers to NH3 -Nitrite anions is generated, not reproduction nitrate anion；And it is directly generated by nitrite anions
N2, referred to as short-cut denitrification.Short-cut nitrification and denitrification refers to NH3 ---NO2 ---N2, it can a kind of work of Cong Shuizhong ammonia nitrogen removal
Skill.
Synchronous nitration and denitrification refers in the case where aerobic, and nitrification and denitrification has occurred in bioreactor simultaneously
Process.The present invention improves the advantages of oxidation ditch unit combines activated sludge process and biofilter, can be formed in reactor
Liquid, solid, gas three-phase coexistence system, in order to which simultaneous nitrification-denitrification creates good environment.
Biologic packing material technical basis biological catalytic oxidation principle is formed about local anaerobic layer in filler, and
Water body side forms local aerobic layer because of the effect of dissolved oxygen.The biomembrane of large area can make to form larger area in pond body
Synchronous nitration and denitrification.By the water circulation inside control membrane module, make to form completely new pond body microenvironment in pond body, it can
Increase the removal rate of ammonia nitrogen in the case where not increasing regurgitant volume.
The present invention improves oxidation ditch processing unit and removes carbon principle and feature:
Efficient denitrification filler is also fairly obvious to the removal effect of COD.The aerobic-anaerobic microbe such as acid-producing bacteria of filler attachment, can
Largely to hydrolyze the organic substance being retained down by biomembrane, it is dissolved matter by insoluble hydrolysis of organic matter, will divides greatly
Son is difficult to biodegradable substance and is converted into the substance being readily biodegradable.And pass through the association of suspended sludge and biomembrane sludge
Same-action reduces water outlet COD value further.Biofilm packing biological membrane equipment bottom is equipped with aeration tube, by embracing
It works, it can be achieved that act on the positioning oxygen supply of unit biological membrane equipment, by adjusting oxygen-supplying amount, can effectively enhance biology
The growth of film, and acted on by aeration stirring, accelerate the update of biology, keeps the good removal of carbon and nitrogen of biomembrane
Effect.Removal of carbon and nitrogen schematic diagram is as indicated at 4.
The high-performance bio filler is made of reinforced wire and the soft silk of biofilm, and the soft silk of biofilm is chemical fibre and inorganic chemical fiber
Hydrophilic, close biological treatment is done on composite, surface.The biologic packing material easy to be filmed, large specific surface area, bio-carrier enhanced strength,
It is corrosion-resistant, removal of carbon and nitrogen effect is good.It, will shape in the organic and inorganic compounding material of high efficiency packing after the completion of Biofilm Colonization
At uniform biomembrane, dissolution oxygen gradient is formed, biomembrane outer layer is aerobic bacteria, and centre is anoxic bacteria, and internal layer is anaerobic bacteria, can
Form the A in N number of microcosmic meaning2Short distance and synchronous nitration and denitrification effect occur for/O technique, so that the effect of removal of carbon and nitrogen obtains
To greatly improving.It is as shown in Figure 5 using form.After coming into operation, in sewage suspended sludge can rapid implantation on the soft silk of biofilm,
Biofilm structure is quickly formed, as shown in Figure 6.
Magnetic flocculation precipitation process cellular construction is as shown in Figure 7:
Magnetic flocculation precipitation process unit includes mixed reaction pond and the magnetic flocculation sedimentation basin 11 being connected to mixed reaction pond, is mixed
Closing reaction tank includes the liquid alkaline mixing pit 7 being sequentially communicated, PAC mixing pit 8, magnetic powder mixing pit 9 and PAM mixing pit 10, PAM mixing
The water outlet in pond 10 is connected with the water inlet of magnetic flocculation sedimentation basin 11, the outlet of the base sludge of magnetic flocculation sedimentation basin 11 respectively with
Magnetic powder recovery system is connected with 9 bottom of magnetic powder mixing pit, magnetic powder recovery system also respectively with magnetic powder mixing pit 9 and Treatment of Sludge
System is connected.
Magnetic powder recovery system includes the magnetic powder clipper 12 with the base sludge outlet of magnetic flocculation sedimentation basin 11, magnetic powder
Magnetic separator 13 is connected on clipper 12, magnetic separator 13 is connected with magnetic powder mixing pit 9 and sludge treating system respectively.
Magnetic flocculation sedimentation basin in the magnetic flocculation precipitation process unit is intake using intermediate guide shell, and guide shell is divided into instead
Plate is penetrated to prevent water stream from having rushed bed mud, arrangement inclined tube area is in sedimentation basin to reinforce sedimentation effect.
Sewage after improveing oxidation ditch processing unit processes, which enters mixed reaction pond by water inlet, flocculate instead
It answers, subsequently into magnetic flocculation sedimentation basin 11,11 supernatant overflow of magnetic flocculation sedimentation basin water outlet is deposited on the magnetic mud mixed liquor of bottom
A part is back to magnetic powder mixing pit 9, and another part is promoted to magnetic powder recovery system through residual sludge pump, remaining dirty after separation
Mud gravity is discharged into sludge treating system, and magnetic powder enters magnetic powder mixing pit 9.
Magnetic flocculation precipitation process unit introduces magnetic load in the present invention, and the wadding body and load for generating flocculation are effective
In conjunction with, flocculating effect is strengthened, meanwhile, the specific gravity of wadding body increases (magnetic kind specific gravity 4.2-5.0), so that floc settling velocity adds
Fastly, water body is quickly purified.
Magnetic flocculation precipitation unit has the following characteristics that in the present invention
1. settling velocity is fast, wadding body standing sedimentation speed >=40m/h.
2. surface loading height [up to 20~40m3/(m2H)], occupied area is small.
3. effectively optimization added amount of chemical reduces added amount of chemical and is up to 15%.
4. sludge concentration is high, 3% or more is reached as high as.
5. Treatment of Sludge is simple: using mechanical dehydration, added amount of chemical is few, and Operation and Maintenance is simple, free from extraneous odour.
6. when intake SS≤400mg/L when, aqueous suspension≤5mg/L out, total phosphorus≤0.5mg/L.
7. when intake SS≤400mg/L when, water inlet SS fluctuation do not influence outlet effect.
8. modified magnetic kind can be recycled, the rate of recovery is high.
For sewage treatment plants after biochemistry transformation, increasing magnetic flocculation system, effluent index can achieve substantially
Emission request after mentioning mark, but in the water treatment plant for receiving trade effluent, index of intaking is generally higher and unstable, to guarantee
System stable water outlet general recommendations increases filtering cloth filtering pool unit.When water demand in water treatment plant's consideration, increase immersion ultrafiltration,
Make to be discharged more preferable and more stable.
Immersion ultrafiltration (SMF) technique is a kind of novel membrane technology.It is ultralow pressure doughnut membrane technology and continuous film mistake
Filter technology combines and the novel film filtration treatment technique of one kind that derives from.It uses open hollow fiber film component,
Film is placed directly among the membrane cisterna full of pending water, by the negative-pressure ward and atmospheric pressure of pump, water is made to penetrate film surface,
It is extracted out on the inside of from hollow-fibre membrane, achievees the purpose that filtration, purification.
Ultrafiltration membrane feature:
The pore size filter of submerged ultrafiltration is generally less than 0.2 μm, and water outlet SS, which can ensure that, reaches 5mg/L, is discharged turbid
Degree can reach 0.1NTU or less.Compared to conventional filtration form, submerged ultrafiltration treatment process has following features:
1, high resistant to pollution Kynoar (PVDF) membrane material, anti-oxidant, anti-pollution, membrane flux easy to clean is big, out
Water is stablized, long service life.
2, equipment control is simple, and system can automatically continuously be run, long-range to control.
3, the double washing methods of unique online air water, excellent membrane flux recovery rate.
4, system structure is simple and compact, is suitable for large-scale engineering of water treatment.
5, it is particularly suitable for carrying out embrane method transformation, enlarging using original filter tank, saves project investment, improve treatment scale and water
Matter.
6, it is discharged using negative-pressure ward mode, the operation of system ultralow pressure saves 60% or more electric energy compared with pressure type film.
7, common industrial chemistry medicament can be used and carry out cleaning systems, save operating cost.
8, producing water water quality is excellent, and the water rate of recovery is high, effectively saving water resource.
It is as follows that immersion ultrafiltration produces water effect:
Embodiment
XX water factory mentions mark transformation project example (treating capacity: 60,000 ton/days)
Original process flow chart is as shown in figure 8, process flow chart is as shown in Figure 9 after proposing mark transformation.
Major alterations content:
(1) improved active sludge treatment process: increasing high-performance bio module, carbon source dosing system in oxidation ditch, due to
Oxidation ditch deposition seriously increases submersible water impeller again.
(2) increase magnetic flocculation settling system
(3) increase immersion ultrafiltration system
Each technique unit Inlet and outlet water and dosage parameter list after transformation:
Design influent quality:
| Project | COD | BOD5 | SS | TN | NH3-N | TP |
| It designs influent quality (mg/L) | 400 | 200 | 220 | 45 | 35 | 3.5 |
Design effluent quality:
Above description has shown and described several preferred embodiments of invention, but as previously described, it should be understood that invention is not
It is confined to form disclosed herein, should not be regarded as an exclusion of other examples, and can be used for various other combinations, modification
And environment, and can be carried out within that scope of the inventive concept describe herein by the above teachings or related fields of technology or knowledge
Change.And changes and modifications made by those skilled in the art do not depart from the spirit and scope of invention, then it all should be in the appended power of invention
In the protection scope that benefit requires.
Claims (8)
1. a kind of combination treatment method of sewage, which is characterized in that by the sewage Jing Guo primary treatment successively by improvement oxidation
Ditch processing unit, magnetic flocculation precipitation process unit, immersion ultra filtration unit reach the sewage drainage standard after mentioning mark.
2. the combination treatment method of sewage according to claim 1, which is characterized in that the improvement oxidation ditch processing unit
Including hanging on the intracorporal multiple high-performance bio modules in the aerobic part pond of oxidation ditch.
3. the combination treatment method of sewage according to claim 2, which is characterized in that the high-performance bio module packet uses
Load-carrying members main body made of SS304 stainless steel, the top of the load-carrying members main body side that meets water are provided with flow guide system, load-carrying members
The bottom of main body is equipped with two or more aerating systems, and load-carrying members body interior is hung by high-performance bio filler.
4. the combination treatment method of sewage according to claim 3, which is characterized in that the flow guide system installation meets water
Angle is 150 °.
5. the combination treatment method of sewage according to claim 3, which is characterized in that each aerating system passes through aeration branch
Pipe is connected with aeration supervisor.
6. the combination treatment method of sewage according to claim 1-5, which is characterized in that the magnetic flocculation precipitating
Processing unit includes mixed reaction pond and the magnetic flocculation sedimentation basin being connected to mixed reaction pond, and mixed reaction pond includes being sequentially communicated
Liquid alkaline mixing pit, PAC mixing pit, magnetic powder mixing pit and PAM mixing pit, the water outlet of PAM mixing pit and magnetic flocculation sedimentation basin
Water inlet be connected, the outlet of the base sludge of magnetic flocculation sedimentation basin mixes bottom of pond portion phase with magnetic powder recovery system and magnetic powder respectively
Connection, magnetic powder recovery system are also connected with magnetic powder mixing pit and sludge treating system respectively.
7. the combination treatment method of sewage according to claim 6, which is characterized in that the magnetic powder recovery system include with
The magnetic powder clipper of the base sludge outlet of flocculation sedimentation tank is connected with magnetic separator, magnetic separator on magnetic powder clipper
It is connected respectively with magnetic powder mixing pit and sludge treating system.
8. the combination treatment method of -5 or 7 described in any item sewage according to claim 1, which is characterized in that the magnetic flocculation
By immersion hyperfiltration treatment unit after precipitation process unit.
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| CN201811469019.5A CN109694159A (en) | 2018-12-04 | 2018-12-04 | A kind of combination treatment method of sewage |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022083801A3 (en) * | 2021-01-11 | 2022-06-02 | 凌志环保股份有限公司 | Fixed filler multi-bed-type oxidation ditch for treating rural domestic sewage |
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