CN208218641U - A kind of spiral-flow type excess sludge ozone minimizing device - Google Patents
A kind of spiral-flow type excess sludge ozone minimizing device Download PDFInfo
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- CN208218641U CN208218641U CN201721769321.3U CN201721769321U CN208218641U CN 208218641 U CN208218641 U CN 208218641U CN 201721769321 U CN201721769321 U CN 201721769321U CN 208218641 U CN208218641 U CN 208218641U
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- ozone
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- minimizing
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Abstract
The utility model discloses a kind of spiral-flow type excess sludge ozone minimizing devices, are related to sewage treatment field.The utility model is a kind of device that can reduce the generation of excess sludge in sewage disposal process.It includes ozone dosage system and spiral-flow type ozone minimizing reactor.Ozone dosage system enters spiral-flow type ozone minimizing reactor after mixing ozone gas with sludge using ejector.Spiral-flow type ozone minimizing reactor uses closed cylindrical reactor, the stainless steel mesh of inside setting load MnO, pressure gauge and safety valve is arranged in reactor head, spray equipment is arranged in reactor top, and partition and foam-removing layer are set in water outlet, prevent foam from carrying sludge secretly, the mixed liquor of ozone and sludge is from reactor bottom tangentially to enter, entry to mixed solution direction is used to be arranged with 25 degree of tangential angle, so that helically stream rises mixed liquor in the reactor, the minimizing for reacting realization sludge of ozone and excess sludge is utilized.
Description
Technical field
The utility model relates to sewage treatment field, a kind of particularly spiral-flow type excess sludge ozone minimizing device,
The device can reduce the generation of excess sludge in sewage disposal process.
Background technique
In recent years, China increases the construction of sewage treatment facility, and sewage treatment capacity is largely increased.It is same with this
When, the excess sludge generated in sewage disposal process also rises year by year, and the processing disposal difficulties of excess sludge increasingly show.It is remaining
Sludge refers generally to the sludge of secondary sedimentation tank of sewage treatment work bottom of pond discharge, due to its content of organic matter height, and usually contains and toxic has
Evil substance, if disposed without appropriate processing, it will pollute the environment.Currently, domestic and international common Treatment of Sludge
Method of disposal includes sanitary landfills, burning, ocean dumping and farmland utilization etc., but above several final process methods of disposal exist
Take up a large area, be also easy to produce the disadvantages of secondary pollution and higher cost.Therefore, sludge reduction can be used as Treatment of Sludge
The effective way of disposition.
Sludge reduction technology refers under the premise of guaranteeing wastewater treatment efficiency, take corresponding measure make to handle it is identical
The technology that the sludge quantity that the sewage of amount generates reduces.It is different from traditional specific resistance to filtration method, sludge reduction is from source
The generation of sludge is reduced on head rather than first generates post-processing.Quantitative reduction method common at present has metabolism uncoupling technology, life
Object predation and the stealthy growth of reinforcing.The metabolism common method of uncoupling technology has uncoupler, improves high concentration of substrate
With the technological parameter of sludge concentration ratio and OSA technique etc..The sludge reduction technology of microorganism predation, raw biology after utilization
Predation for sludge forms longer biological chain, and the predation by extending food chain or enhancing microfauna can be real
Existing mud decrement.Mud decrement also may be implemented in the technology for strengthening recessive growth, and process includes lysis and growth, and utilization is various
Lysis technology, keeps bacterium dead rapidly and is decomposed into matrix to be utilized by microorganism again, to reduce excess sludge
Yield.Common lysis technology includes various chemical lysis, physics lysis and biological lysis etc..Chemical lysis technology common are
Ozone lysis and acid, alkali effect etc..Ozone can destroy cell membrane and extracellular polymeric of difficult for biological degradation etc., make intracellular organic matter
Dissolution, while the macromolecular substances of not facile hydrolysis can also be aoxidized, it makes it easier to be utilized by microorganism, and ozone is a kind of
" green " oxidant will not generate secondary pollution, while it is fast for microorganism wall function and effect, minimizing device volume
It is smaller, it is easy to spread, it is applicable to the sludge treatment engineering of major, medium and small sewage treatment plant.
Utility model content
The utility model provides a kind of spiral-flow type ozone sludge minimizing device, and the sludge reduction device is hidden to strengthen
Property be grown to technical background, based on ozone for the broken of cell membrane, to achieve the purpose that discharge intracellular organic matter.After lysis
Sludge liquid is back to sewage disposal system, improves the biodegradability of system, reduces the yield of excess sludge, to realize dirt
Mud minimizing.
The technical solution adopted in the utility model is as follows:
The utility model is used for excess sludge ozone minimizing device, including ozone generator, two ozone toss areas.
Two ozone toss areas are charging toss area and reactor internal-circulation ozone toss area.
Ozone generator uses air source ozone generator, and in the ozonated air of generation, ozone concentration is 30~
60mg/L。
It feeds toss area to carry out using ejector dosing method, the ozonated air that ozone generator preparation generates passes through
Ozone gas Pipeline transport is to ejector inlet end.Reactor internal-circulation ozone toss area is carried out using ejector dosing method,
Ozone is prepared by ozone generator, passes through ozone gas Pipeline transport to ejector inlet end.
The ozone minimizing reactor uses closed cylindrical reactor, and minimizing height for reactor diameter ratio is 1:
0.5~1:0.3.
The stainless steel mesh of several load MnO, 100~120 mesh of mesh size, stainless steel mesh are set in minimizing reaction
The height of layer is about total reactor height 30%, and screen layer height below is about total reactor height 25%, more than screen layer
Height be about total reactor height 45%, when in reactor stainless steel mesh be it is multiple when, sieve 200~300mm of spacing, instead
Answer setting pressure gauge and safety valve at the top of device.
Reactor lower part is entry to mixed solution, and for the mixing efficiency for improving air-liquid in mixed liquor, entry to mixed solution direction is adopted
It is arranged with 25 degree of tangential angle, so that helically stream rises mixed liquor in the reactor.Water outlet is in reactor head, direction
It is arranged using with tangential vertical angle, the external pressure reducing valve of water outlet, by adjusting pressure reducing valve, control inside reactor gas point
Pressure is 0.06~0.08Mpa.
Spray equipment is arranged in the utility model top, prevents foam from carrying sludge secretly, and partition and foam removal is arranged in water outlet
Layer further prevents foam entrainment sludge to enter water outlet.The foam-removing layer is organic fibrous fillers interlayer, plays destruction bubble
Effect.
PH value is advisable in ozone minimizing reactor described in the utility model for 6-8, and the air pressure in pressor response tank is
0.05~0.08Mpa.45~60min of mixed liquor residence time is controlled, ozone dosage is 0.05~0.20gO3/gMLVSS。
The beneficial effect of the utility model is:
Ozone enters decrement reaction column by ejector, and the great turbulence level that ejector is formed strengthens air-liquid mixing, and is formed
Mass transfer of the ozone in sludge liquid is strengthened compared with high ozone partial pressure, improves ozone utilization rate.
Entry to mixed solution direction is used to be arranged with 25 degree of tangential angle, so that mixed liquor helically flows in the reactor
It rises, improves the mixing efficiency of air-liquid in mixed liquor.
It is reduced in reaction column and is equipped with spray equipment, it will be apparent that reduce the foam generated during decrement, prevent minimizing
The foam blocking generated in the process.
Detailed description of the invention
A kind of structural schematic diagram of spiral-flow type excess sludge ozone minimizing device of Fig. 1 the utility model
Fig. 2 the utility model ozone minimizing reactor feed mouth, inner circulating tube line mouth and water outlet schematic diagram attached drawing mark
Number explanation: 1 feed pump, 2 ejectors, 3 ozone generators, 4 ozone pipelines, 5 ozone minimizing reactors, 6pH electrode, 7 stainless
Steel screen layer, 8 foam-removing layers, 9 spray heads, 10 pressure gauges, 11 safety valves, 12 water outlet partitions, 13 water outlets, 14 pressure reducing valves, 15
Internal circulation pump, 16 reflux ejectors, 17 charging pump intakes, 18 inner circulating tube line entrances, 19 feeding line ozone gas valves, 20
Reflux pipeline ozone gas valve
Specific embodiment
It, below will be to reality in order to illustrate more clearly of the present utility model embodiment or technical solution in the prior art
It applies example or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description
Only some embodiments of the present invention, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it is also possible to obtain other drawings based on these drawings.
Mud mixed liquid feed pump 1 is opened, excess sludge is pumped into ozone minimizing device from sewage disposal system.It opens smelly
Oxygen Generator 3, control ozone concentration are 30~60mg/L, and sludge liquid passes through ejector 2, form turbulent flow and are formed in air inlet
Negative pressure, ozone gas enter ejector by ozone pipeline 4, anti-tangentially to enter ozone minimizing by feeding pump intake 17
Device 5 is answered, the mixed liquor flow-rate ratio in control ozone gas and pipeline is 2:1.Setting load MnO in the middle part of ozone minimizing reactor 5
Stainless steel mesh screen layer 7, sieve layer height is about the 30% of reaction column height.Pressure gauge 10 and peace is arranged in reactor head
Full valve 11.In implementation process, the pressure reducing valve 14 of reactor water outlet 13 is adjusted, controls the partial pressure of inside reactor ozonated air
0.06~0.08Mpa, by pH electrode 6, controlling pH in reactor is 6-8.
After starting drain after water outlet 13, illustrate that liquid level alreadys exceed water outlet partition 12 in reactor, there is certain height
Degree opens internal circulation pump 15, when mixed liquor is by reflux ejector 16, opens ozone gas pipeline valve 20, starting spray
First 9, the foam generated by spray process and foam-removing layer 8, elimination reaction.
Embodiment 1
It is derived from the activated sludge of certain sewage treatment plant, MLVSS 4000mg/L is introduced to decrement reaction by entering water pump
Device, excess sludge inlet amount are 2m3/ h opens ozone generator, ozone concentration 40mg/L, air inlet of the ozone through ejector
Enter decrement reaction column after being thoroughly mixed into water inlet pipe line and sludge liquid, the stainless steel mesh in reactor enhances minimizing
Process after starting drain, opens internal circulation pump, and the mixed liquor flow-rate ratio in inner loop pipeline in ozone gas and pipeline is 1:1, from
And controlling ozone dosage is 0.1gO3/gMLSS.When reaction time reaches 60min, measuring its MLVSS is 850mg/L, remaining dirty
Mud reduction rate reaches 78%, and continuous operational system 30 days, reduced training was obvious.
Claims (1)
1. a kind of spiral-flow type excess sludge ozone minimizing device, it is characterized in that minimizing device mainly includes ozone dosage system
With spiral-flow type ozone minimizing reactor, ozone dosage system includes in ozone generator (3) and charging toss area and reactor
Two ozone toss areas of circulation ozone toss area, feed toss area and reactor internal-circulation ozone toss area is all made of ejector throwing
Add mode carries out, and is located at ejector (2,16), and the ozone gas that ozone generator (3) preparation generates passes through ozone gas
Pipeline (4) is transported to ejector (2,16) inlet end, carries out ozone gas using ejector (2,16) and sludge mixing adds；Instead
Answer device using closed cylindrical reactor (5), the ratio between height diameter is 1:0.5~1:0.3, and pressure gauge is arranged in reactor head
(10) and safety valve (11), in the middle part of reactor (5) setting load MnO stainless steel mesh (7), 100~120 mesh of mesh size,
Sieve 200~300mm of spacing, the height of stainless steel mesh layer are about total reactor height 30%, and screen layer height below is about
For total reactor height 25%, height more than screen layer is about total reactor height 45%, and reactor (5) lower part is mixed liquor
Entrance (17,18), entry to mixed solution direction is used to be arranged with 25 ° of tangential angle, and after mixed liquor enters reactor, eddy flow rises,
Spray equipment (9) are arranged in reactor (5) top, prevent foam from carrying sludge secretly, and in water outlet (13) setting partition (12) and remove
Foam layer (8), further prevents foam to carry secretly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721769321.3U CN208218641U (en) | 2017-12-18 | 2017-12-18 | A kind of spiral-flow type excess sludge ozone minimizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721769321.3U CN208218641U (en) | 2017-12-18 | 2017-12-18 | A kind of spiral-flow type excess sludge ozone minimizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208218641U true CN208218641U (en) | 2018-12-11 |
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ID=64532803
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721769321.3U Expired - Fee Related CN208218641U (en) | 2017-12-18 | 2017-12-18 | A kind of spiral-flow type excess sludge ozone minimizing device |
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| Country | Link |
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| CN (1) | CN208218641U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110902995A (en) * | 2019-10-31 | 2020-03-24 | 江苏鼎弘环境科技有限公司 | Biochemical excess sludge and wastewater composite oxidation treatment device and treatment method thereof |
-
2017
- 2017-12-18 CN CN201721769321.3U patent/CN208218641U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110902995A (en) * | 2019-10-31 | 2020-03-24 | 江苏鼎弘环境科技有限公司 | Biochemical excess sludge and wastewater composite oxidation treatment device and treatment method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20181211 Termination date: 20201218 |
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| CF01 | Termination of patent right due to non-payment of annual fee |