CN108658232A - One kind putting forward target particle strengthening method to existing sewage disposal system dilatation - Google Patents
One kind putting forward target particle strengthening method to existing sewage disposal system dilatation Download PDFInfo
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- CN108658232A CN108658232A CN201810263743.6A CN201810263743A CN108658232A CN 108658232 A CN108658232 A CN 108658232A CN 201810263743 A CN201810263743 A CN 201810263743A CN 108658232 A CN108658232 A CN 108658232A
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- particle
- sewage disposal
- density
- disposal system
- dilatation
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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
- C02F3/30—Aerobic and anaerobic processes
-
- 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
- C02F3/08—Aerobic processes using moving contact bodies
- C02F3/085—Fluidized beds
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W10/00—Technologies for wastewater treatment
- Y02W10/10—Biological treatment of water, waste water, or sewage
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- Life Sciences & Earth Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biological Treatment Of Waste Water (AREA)
Abstract
The present invention provides one kind putting forward target particle strengthening method to existing sewage disposal system dilatation, including：Into the sewage disposal system, solid particle is added in the regional area of whole or described reaction zones of existing one or more bio-reaction zones；Particle is set to suspend to constitute suspended particulate system by gas flowing, the suspended particulate system includes the carrier granular as micropopulation, and the suspended particulate system is grown to principle to be conducive to micropopulation.The suspended particulate system, which is applied to sewage disposal, so that microorganism concn is greatly improved, and anti impulsion load enhancing, excess sludge production is small, and can more reduce energy consumption in such a way that the effect of gas makes particle suspend.Therefore this method that solid particle formation suspended particulate system is added effectively can carry out dilatation to existing sewage disposal system and carry mark, improve the processing capacity and effect of sewage.
Description
Cross reference to related applications
This application claims the priority for the following Chinese Patent Application No. submitted on March 28th, 2017 and by being cited in full text
Mode being cited in full text for following Chinese Patent Application No. is attached to the application：
201710190014.8 201710190231.7,201710190239.3,201710190261.8,
201710191017.3 201710191046.X, 201720306549.2,201720306550.5,201720307758.9,
201720308436.6 201720308438.5,201720308449.3.
Technical field
The present invention relates to one kind putting forward target particle strengthening method to existing sewage disposal system dilatation, is applied to existing dirt
Water treatment system.
Background technology
With the growth and expanding economy of population, the discharge capacity of China's town sewage and industrial wastewater increases increasingly, this
If a little sewage have little time to handle or handle direct emission not up to standard, cause seriously to pollute to water body, living environment to people and
Health brings hidden danger.Water pollution have become restrict national development an important factor for one of, therefore country to sewage at
The discharge standard for managing factory is also more stringent.More and more municipal sewage plants are that response national energy conservation and emission reduction is called, discharge
Standard is by original《Urban wastewater treatment firm pollutant emission standard》Level-one B standard in GB18918-2002 is promoted to level-one
A or higher standard.To cope with the quantity of wastewater effluent increased increasingly and reaching higher discharge standard, many sewage plants are original
Sewage disposal system cannot be satisfied existing requirement, therefore it is extremely urgent to propose mark dilatation to existing sewage disposal system.
Fluidization of solid technology is a kind of novel sewage treatment process, it is by traditional activated sludge process and biofilm
Chemical industry fluidization technology is organically combined and introduced, has the characteristics that high load capacity, high efficiency.Attached microbial on particle passes through stream
State means make particle be suspended in sewerage, due to particle have larger specific surface area can effectively improve it is micro- in system
The concentration of biology, to improve water treatment efficiency, sludge yield is low in whole system, and organic loading is high.
The present invention is based on the related earlier applications of aforementioned reference, and suspended particulate system therein is applied at existing sewage
In reason system, rectified and improved to reach dilatation putting forward target purpose on the basis of need not extend original cesspool.
Invention content
In view of this, the present invention provides a kind of existing sewage disposal system dilatations to put forward target particle strengthening method, it is described
Method is simple and fast, high-efficiency and economic.Apply it to existing sewage disposal system dilatation carry mark in reach good effect.
In order to achieve the above objectives, the invention discloses following technical solutions：
One kind putting forward target particle strengthening method to existing sewage disposal system dilatation, including：
Into the sewage disposal system, whole or described reaction zones of existing one or more bio-reaction zones
Solid particle is added in regional area；
Particle is set to suspend to constitute suspended particulate system by gas flowing, the suspended particulate system includes conduct
The carrier granular of micropopulation, the suspended particulate system are grown to principle to be conducive to micropopulation.
The bio-reaction zone includes any of or a combination of aerobic area, anaerobic zone, anoxic zone, aerobic zone.
One kind of the present invention putting forward target particle strengthening method to existing sewage disposal system dilatation and has the following advantages：It is not necessarily to
It is extended, method is simple and fast, treatment effeciency is high, energy consumption is small, be easily installed manipulation, universality is strong etc. especially may be adapted to
Take up an area the town sewage plant that can not be extended of saturation, therefore this carries mark particle strengthening for existing sewage disposal system dilatation
Method has boundless application prospect.
Description of the drawings
Fig. 1 puies forward target schematic device using particle strengthening method for the present invention to existing sewage disposal system dilatation.
Specific implementation mode
Target particle strengthening method is carried to existing sewage disposal system dilatation in order to be better understood from this, with reference to implementation
Example is illustrated this method.
In one embodiment, the invention discloses one kind carrying target particle strengthening side to existing sewage disposal system dilatation
Method, including：
Into the sewage disposal system, whole or described reaction zones of existing one or more bio-reaction zones
Solid particle is added in regional area；
Particle is set to suspend by gas flowing, the suspended particulate system includes the carrier as micropopulation
Grain, the suspended particulate system are grown to principle to be conducive to micropopulation.
The bio-reaction zone includes any of or a combination of aerobic area, anaerobic zone, anoxic zone, aerobic zone.
For the embodiment, into the sewage disposal system, existing one or more bio-reaction zones it is complete
Solid particle is added in the regional area of portion or the reaction zone and forms it into particle suspension system under the use of gas,
The carrier that this suspended particulate is grown as micropopulation, the larger specific surface area of particle can adhere to for microorganism provides enough skies
Between, since microorganism grows and falls off on the surface of suspended particulate medium, constantly updates, microorganism in system can be effectively improved
Concentration, to be easy to organic pollution carry out metabolic degradation reaction, and/or to ammonia nitrogen carry out nitration denitrification reaction,
And/or release phosphorus is carried out to phosphorus and absorbs the reaction of phosphorus, to improve sewage treating efficiency.
The characteristics of suspended particulate system, is as follows：(1) higher organic volumetric loading, hydraulic detention time is short, required reaction
Device it is small；(2) mass-transfer performance is good, when especially gas procedure being taken to fluidize, can make it have higher treatment effeciency；
(3) flowing of gas-liquid-solid three-phase can promote the update of biomembrane, ensure that the strong microorganism of activity occupies particle surface to have
Stronger processing capacity；(4) energy consumption can more be reduced in such a way that gas acts on so that particle suspends.In conclusion
Suspended particulate system can not only improve its treatment effeciency in the treatment of waste water, and can also save energy.
This use particle strengthening progress dilatation, which carries calibration method, to be directed in aerobic area, anaerobic zone, anoxic zone, aerobic zone
It is any or combinations thereof.To which the complicated sewage disposal system of reply more flexibly be adjusted.
When selecting carrier granular to consider grain size in suspended particulate system, the general a diameter of 0.5- for selecting carrier granular
12mm, a diameter of 2-5mm of preferred carrier particle.If carrier granular grain size is excessive, particle of the same race need to overcome the drag force of bigger and
Need more energy that can just carrier granular be made to be suspended in system, and selected particle diameter is excessive, then the ratio table of particle
Area is smaller, is unfavorable for gas-liquid-solid three-phase and comes into full contact with mass transfer.
It selects light particle as particulate vector in suspended particulate system, considers that first choice density is more than or equal to when density factor
The density of liquid phase 50% and less than the light particle of the density of liquid phase, preferential selection is light more than the density of liquid phase 80%
Particle.If the density of light particle is too low, the light particle and the Liquid density difference are excessive under equal volume, need the dynamic of bigger
Power can just overcome the buoyancy of light particle itself, and energy consumption is excessive, and the density of light particle and the density of liquid phase are closer, it is easier
It suspends in the liquid phase.
Light particle carrier, which in systems suspends, to be realized in：Light particle is added in a liquid, it is close due to light particle
For degree less than the density of liquid, light particle floats on the upper layer of liquid when standing, and gas is passed through into system, with the increasing of gas velocity,
Reduction and gas of the light particle of ullage due to gas-liquid mixed density to the effect of liquid and caused by the influence that disturbs
Start to suspend to lower motion.
It selects weight particle as particulate vector in suspended particulate system, considers that first choice density is less than or equal to when density factor
The heavy particle of the 150% of the density of liquid phase, heavy particle of the preferential selection less than the density of liquid phase 120%.If weight particle
Density is excessive, and the heavy particle and the Liquid density difference are excessive under equal volume, needs the power of bigger that can just overcome weight
The grain gravity of itself, energy consumption is excessive, and the density of weight particle and the density of liquid phase are closer, easier to be hanged in the liquid phase
It is floating.
Weight particulate vector, which in systems suspends, to be realized in：Particle again is added in a liquid, due to weighing the close of particle
For degree more than the density of liquid, weight particle is sunken to the lower part of liquid when standing, and gas is passed through into system, with the increasing of gas velocity,
When the drag force that gas acts on carrier granular is more than the gravity of itself, particle is moved upwards and is hanged under the influence of gas
It is floating.
Select hybrid particles as particulate vector in suspended particulate system, the hybrid particles are light particle and weight particle
Mixing.The density of the hybrid particles is between the 50%-150% of water body density, and preferably the density of hybrid particles is in water body
Between the 80%-120% of density.If the density of hybrid particles and place fluid density difference are excessive, the power ability of bigger is needed
Overcome the gravity or buoyancy of particle itself, energy consumption is excessive, and the density of particle and the density of liquid phase are closer, easier described
It suspends in liquid phase.
Not only included light particle for hybrid particles, in system but also included weight particle, as long as therefore appropriate of selection
Service speed intersection when grain and suitable operating gas velocity, that is, light particle and weight particle suspended state, can make mixing
Grain is in suspended state in systems.Again since light, weight particle is moved from the both ends of system to center position and is suspended, gently, again
The concentration gradient that particle is formed on the axial direction of system can carry out complementation and more easily reach uniform distribution.
Further, the size of the carrier granular can it is uniform also can be non-uniform, the density of the carrier granular can
With it is uniform also can be non-uniform.Selection carrier granular not only needs to consider density, the grain size of particle, but also also needs to consider particle
Material, shape, surface property etc. influence factor.The light particle can be plastic grain (such as：Polyethylene, polypropylene, hair
Polystyrene of bubble etc.) can also be hollow glass marble etc.；Weight particle can be plastic grain, volcanic rock, zeolite etc.
Deng.Light, weight particle the shape is varied, can be spherical, elliposoidal, column shape can also be irregular polygon
Etc..Particle should preferentially select large specific surface area when selecting, similar spherical, density and the particle that liquid is close, drain is good, both
It is easy to fluidize energy saving and there is higher mass-transfer efficiency.
In another embodiment, the carrier granular can also include one or more micropores, in advance or handle
During sewage in micropore enriched microorganism.Further, the particle can also while including micropore, including one
It is a or multiple with microporous connectivity cavity, cavity inside preconcentration microorganism, and in sewage disposal process by micropore with
Waste water, mass transfer.The microorganism can be carried in advance by particle before treated sewage, rich when can also be treated sewage
Collection, carrying are from sewage existing for itself.
In another embodiment, in the carrier granular reaction zone at entery and delivery port and between bio-reaction zone
Fixed or packaged type component is set, for preventing particle to be lost in.This component can be partition board, hydraulic barrier or silk screen and
Other can stop the setting that particle is lost in.In another embodiment, it is arranged on the periphery of the local granule stiffened region and fixes
Formula or packaged type component, prevent particle to be lost in.This component can be partition board, hydraulic barrier or silk screen and other can stop
The setting that grain is lost in.
In another embodiment, in order to carry mark to existing sewage disposal system dilatation, increase in the biochemical reaction zone
If or improvement aerating system, the aerating system use continuously or intermittently intake method.On the one hand being passed through for gas is system
The progress that certain dissolved oxygen meets biochemical reaction is provided, on the one hand providing certain power for carrier granular keeps it equal in systems
Even suspension.Aerating system is the key that whole device, and aerator can select disc type diaphragm aerator, tube aerator, micropore
Type leather hose etc..The oxygen demand and particle two items of suspension of biochemical reaction are considered while met when selection aerator
Part.If oxygen demand is big, the aerator of minute bubbles is selected；The aerator of the small optional air pocket of oxygen demand.
In another embodiment, in order to carry mark to existing sewage disposal system dilatation, to its water inlet system, go out water system
The one or more of system, gas handling system, sludge drainage system etc. are added or are improved, and the suspended particulate system is especially matched with
System, to be more preferably adapted to improved particle strengthening sewage disposal system.
In another embodiment, it carries mark to the progress dilatation of certain urban wastewater treatment firm to be transformed, at the sewage being specifically transformed
Reason system is as shown in Figure 1.The length of the cesspool is respectively 21 × 6 × 3m, wherein 6 meters of the anaerobism head of district, the aerobic head of district 12
Rice precipitates 3 meters of the head of district.The aeration setting of the anaerobic zone, aerobic zone is transformed, the exposure of macropore is installed in anaerobic zone bottom
Gas head installs pore type leather hose in aerobic zone bottom.The heavy particle of 20% volume fraction, weight are added to the anaerobic zone of the system
A diameter of 3mm of particle, density 1100kg/m3；To the aerobic zone of the system be added 20% light particle, light particle it is straight
Diameter is 3.5mm, density 930kg/m3；High efficiency packing is added to the settling zone and is used for mud-water separation.In inlet, go out liquid
Setting hydraulic barrier or silk screen are for preventing carrier granular from being lost at mouthful.
Improved waste water processes：Sewage is discharged into anaerobic zone through inlet tube, in weight particle attachment in anaerobic zone
Metabolic degradation reaction and anti-nitration reaction are carried out under the action of anaerobic bacteria, the water of preliminary treatment passes through in anaerobic zone and aerobic zone
Between the pipeline that circulates flow to aerobic zone under the action of liquid level difference, the effect of the aerobic bacteria in aerobic zone accompanying by light particle
Lower further progress metabolic degradation and nitration reaction；Further, under liquid level difference effect, flow that treated in aerobic zone
Enter to settling zone, the effect of high efficiency packing, makes muddy water further be detached in settling zone, treated on top clarified solution
Overflow pipe discharge through top after up to standard.The sludge of settling zone deposition passes back into the inlet of anaerobic zone under gas stripping
Place.
For the embodiment, device is increased to 1600 ton days by 800 ton day for the treatment of capacity of original daily sewage,
Within the runtime, average COD of intaking is 280g/m3, average NH4- N is 48g/m3, total nitrogen 65g/m3, total phosphorus 1.9g/m3.Through
After crossing 2.5 hours hydraulic detention times, 92%COD is can remove, 90% total nitrogen and 89% total phosphorus, water outlet reach《Town sewage
Treatment plant's pollutant emission standard》Level-one A standards in GB18918-2002.
The above, only presently preferred embodiments of the present invention, are not intended to limit the invention, and each embodiment, which is all made of, passs
Into mode describe, the same or similar parts between the embodiments can be referred to each other, and each embodiment stresses
It is difference from other examples.It is every made to the above embodiment according to the technical essence of the invention any subtle to repair
Change, equivalent replacement and improvement should be included within the protection domain of technical solution of the present invention.
Claims (10)
1. one kind putting forward target particle strengthening method to existing sewage disposal system dilatation, including：
Into the sewage disposal system, the part of whole or described reaction zones of existing one or more bio-reaction zones
Solid particle is added in region；
Particle is set to suspend by gas flowing to constitute suspended particulate system, the suspended particulate system includes as micro- life
The carrier granular of object group, the suspended particulate system are grown to principle to be conducive to micropopulation；
The bio-reaction zone includes any of or a combination of aerobic area, anaerobic zone, anoxic zone, aerobic zone.
2. one kind according to claim 1 puies forward target particle strengthening method to existing sewage disposal system dilatation, it is preferred that
It is characterized in that a diameter of 0.5-12mm of the carrier granular, a diameter of 2-5mm of preferred carrier particle.
3. one kind according to claim 1 puies forward target particle strengthening method, feature to existing sewage disposal system dilatation
It is, the suspended particulate is light particle, and the light particle density is more than or equal to the 50% of place water body density and is less than place
The density of water body, the preferably described light particle density are more than or equal to the 80% of place water body density.
4. one kind according to claim 1 puies forward target particle strengthening method, feature to existing sewage disposal system dilatation
It is, the suspended particulate is attached most importance to particle, and the heavy grain density is more than the density of place water body and is less than or equal to place water body
The 150% of density, the preferably described heavy grain density are less than or equal to the 120% of place water body density.
5. one kind according to claim 1 puies forward target particle strengthening method, feature to existing sewage disposal system dilatation
It is, the suspended particulate system is hybrid particles, and the hybrid particles are the mixing of light particle and weight particle；The mixing
Granule density is between the 50%-150% of water body density, and preferably hybrid particles density is between the 80%-120% of water body density.
6. one kind according to claim 1 puies forward target particle strengthening method, feature to existing sewage disposal system dilatation
It is, fixed or packaged type structure is set in the carrier granular reaction zone at entery and delivery port and between bio-reaction zone
Part prevents particle to be lost in.
7. one kind according to claim 1 puies forward target particle strengthening method, feature to existing sewage disposal system dilatation
It is, fixed or packaged type component is set on the periphery of the local granule stiffened region, particle is prevented to be lost in.
8. one kind according to claim 1 puies forward target particle strengthening method, feature to existing sewage disposal system dilatation
It is, aerating system is added or improved in the biochemical reaction zone, the aerating system is using continuously or intermittently intake method.
9. one kind according to claim 1 puies forward target particle strengthening method, feature to existing sewage disposal system dilatation
Be, further include the water inlet system to the sewage disposal system, outlet system, gas handling system, one kind in sludge drainage system or
It is a variety of to be added or improved.
10. one kind according to claim 1 puies forward target particle strengthening method, feature to existing sewage disposal system dilatation
It is：
The carrier granular further includes one or more micropores, and micro- life is enriched in advance or in micropore during treated sewage
Object and the particle also optionally include one or more cavitys with microporous connectivity, cavity inside preconcentration microorganism,
And pass through micropore and waste water, mass transfer in sewage disposal process；Wherein, the microorganism is pre- by particle before treated sewage
It is enriched with, carried from sewage itself when first carry or treated sewage.
Applications Claiming Priority (24)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2017101902317 | 2017-03-28 | ||
| CN201710190239 | 2017-03-28 | ||
| CN2017203084385 | 2017-03-28 | ||
| CN2017101902618 | 2017-03-28 | ||
| CN201720308438 | 2017-03-28 | ||
| CN201720306549 | 2017-03-28 | ||
| CN2017101902393 | 2017-03-28 | ||
| CN201710190014 | 2017-03-28 | ||
| CN201710190231 | 2017-03-28 | ||
| CN2017203077589 | 2017-03-28 | ||
| CN201720307758 | 2017-03-28 | ||
| CN2017101900148 | 2017-03-28 | ||
| CN2017203065492 | 2017-03-28 | ||
| CN2017101910173 | 2017-03-28 | ||
| CN201720308449 | 2017-03-28 | ||
| CN2017203084366 | 2017-03-28 | ||
| CN201710191046X | 2017-03-28 | ||
| CN201710191046 | 2017-03-28 | ||
| CN201710190261 | 2017-03-28 | ||
| CN201720306550 | 2017-03-28 | ||
| CN201720308436 | 2017-03-28 | ||
| CN2017203084493 | 2017-03-28 | ||
| CN2017203065505 | 2017-03-28 | ||
| CN201710191017 | 2017-03-28 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108658232A true CN108658232A (en) | 2018-10-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810263743.6A Pending CN108658232A (en) | 2017-03-28 | 2018-03-28 | One kind putting forward target particle strengthening method to existing sewage disposal system dilatation |
| CN201820431358.3U Active CN208617624U (en) | 2017-03-28 | 2018-03-28 | The particle strengthening sewage-treatment plant of packaged type |
| CN201820431398.8U Active CN209143828U (en) | 2017-03-28 | 2018-03-28 | A kind of particle strengthening water purifying device being placed in river or lake |
Family Applications After (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820431358.3U Active CN208617624U (en) | 2017-03-28 | 2018-03-28 | The particle strengthening sewage-treatment plant of packaged type |
| CN201820431398.8U Active CN209143828U (en) | 2017-03-28 | 2018-03-28 | A kind of particle strengthening water purifying device being placed in river or lake |
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| CN (3) | CN108658232A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115140833A (en) * | 2022-07-26 | 2022-10-04 | 同济大学 | Intelligent novel suspension carrier based on microcontroller |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103547535A (en) * | 2011-04-04 | 2014-01-29 | 威立雅水务解决方案与技术支持公司 | Improved biological waste water purification reactor and method |
| CN104193005A (en) * | 2014-09-03 | 2014-12-10 | 中国科学院广州能源研究所 | Small fluidized bed sewage treatment system and operating method thereof |
-
2018
- 2018-03-28 CN CN201810263743.6A patent/CN108658232A/en active Pending
- 2018-03-28 CN CN201820431358.3U patent/CN208617624U/en active Active
- 2018-03-28 CN CN201820431398.8U patent/CN209143828U/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103547535A (en) * | 2011-04-04 | 2014-01-29 | 威立雅水务解决方案与技术支持公司 | Improved biological waste water purification reactor and method |
| CN104193005A (en) * | 2014-09-03 | 2014-12-10 | 中国科学院广州能源研究所 | Small fluidized bed sewage treatment system and operating method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN208617624U (en) | 2019-03-19 |
| CN209143828U (en) | 2019-07-23 |
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Application publication date: 20181016 |