CN203033825U - Pure-oxygen aeration device - Google Patents
Pure-oxygen aeration device Download PDFInfo
- Publication number
- CN203033825U CN203033825U CN2012207044153U CN201220704415U CN203033825U CN 203033825 U CN203033825 U CN 203033825U CN 2012207044153 U CN2012207044153 U CN 2012207044153U CN 201220704415 U CN201220704415 U CN 201220704415U CN 203033825 U CN203033825 U CN 203033825U
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- Prior art keywords
- aeration
- tank
- sludge
- oxygen
- aeration device
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 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
-
- 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
- Y02W10/30—Wastewater or sewage treatment systems using renewable energies
- Y02W10/37—Wastewater or sewage treatment systems using renewable energies using solar energy
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- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
Abstract
The utility model relates to a pure-oxygen aeration device which comprises an aeration tank, an aeration sedimentation tank, a liquid oxygen storage tank, a gasifier, a pressure balance device and a water injector. The upper portion of the aeration tank is connected with the upper portion of the aeration sedimentation tank by a pipeline, and the bottom of the aeration tank is connected with the bottom of the aeration sedimentation tank by a sludge return pipeline; the water injector is arranged on the sludge return pipeline; and the liquid oxygen storage tank, the gasifier, the pressure balance device and the water injector are sequentially connected with one another. The pure-oxygen aeration device has the various advantages of simple structure, convenience in operation, capability of becoming effective fast and the like. Besides, by the aid of the pure-oxygen aeration device, a normal state of expanded sludge can be recovered within 2-5 days. In addition, the quality of yielded water cannot be deteriorated in an implementation procedure, and the quantity of the sludge cannot be increased in the implementation procedure.
Description
Technical field
The utility model relates to a kind of equipment that solves sludge bulking, and concrete pure oxygen aeration device belongs to the environmental protection equipment technical field.
Background technology
Activated sludge process is still the method for the widespread usage of disposing of sewage so far.But activated sludge process in use, and the sludge bulking problem is a big technical barrier of puzzlement operational management always.When sludge bulking was serious, sludge settling property extreme difference, second pond were difficult to realize the purpose of solid-liquid separation, caused out water suspension and COD significantly to rise, a large amount of sludge loss, and biochemical system can't normally move.
After sludge bulking takes place, common practices is: (1) added inorganic coagulant to improve sludge settling property before aeration tank mixed solution water outlet enters aerated precipitation tank, but this method is cured the symptoms, not the disease, and sludge quantity increases severely, the coagulating agent that adds also can cause a large amount of inorganic salt to enter in the active sludge of biochemistry pool, and sludge activity is reduced; (2) directly add oxidizing bactericide to the aeration tank, as chlorine, clorox etc., the shortcoming of this mode is to kill the hyphomycetic while, and useful zoogloea also is killed, and biochemical system is subjected to havoc.During adding, the processing efficiency of system seriously descends.On the other hand, the chlorine that adds is toxic and harmful, and inconvenience is used in operation.(3) by strengthening spoil disposal, backflow, oxygen supply control, the filamentous bacterium ratio is gradually reduced.This method needs the abundant technical controller of the deep and practical experience of knowwhy, and (generally being 3 ~ 5 mud ages, about 20 ~ 40 days) just can recover to need the long improvement time.
Therefore, for solving the problems of the technologies described above, necessaryly provide a kind of structure improved pure oxygen aeration device that has, to overcome described defective of the prior art.
The utility model content
The purpose of this utility model is to provide a kind of pure oxygen aeration device of simple in structure, easy to operate and instant effect.
For achieving the above object, the technical scheme that the utility model is taked is: a kind of pure oxygen aeration device, and it comprises aeration tank, aerated precipitation tank, liquid oxygen storage tank, gasifier, pressure equaliser and water sprayer; Wherein, the top of described aeration tank and aerated precipitation tank is by a pipe connection, and the bottom connects by a sludge return pipe; Described water sprayer is arranged on the sludge return pipe; Described liquid oxygen storage tank, gasifier, pressure equaliser and water sprayer are connected successively.
Pure oxygen aeration device of the present utility model further is set to: be provided with an oxygen valve between described pressure equaliser and water sprayer.
Pure oxygen aeration device of the present utility model further is set to: described sludge return pipe is provided with a mud reverse flow valve and a sludge reflux pump.
Pure oxygen aeration device of the present utility model also is set to: be provided with an outlet conduit in described aerated precipitation tank.
Compared with prior art, the utlity model has following beneficial effect:
(1) easy to use.Only need simple liquid oxygen storage tank and gasification installation, less investment can be used as the emergency unit of activated sludge process, to small sewage treatment plant, also can be designed to running gear.
(2) instant effect, and be difficult for recurrence.Can in a week, make the every index of mud recover normal.
(3) during using pure oxygen ruling by law reason sludge bulking problem, water quality treatment does not worsen, and progressively takes a turn for the better on the contrary.Show water outlet COD
CrValue constantly descends.Because pure oxygen is killing the hyphomycetic while unlike other oxygenant (as clorox), has also destroyed zoogloea.And the use clorox, methods such as chlorine are administered during the sludge bulking, and effluent quality worsens, and the use pure oxygen time, effluent quality progressively takes a turn for the better.
Description of drawings
Fig. 1 is the schematic diagram of pure oxygen aeration device of the present utility model.
Fig. 2 is the SVI(sludge volume index after certain printing and dyeing enterprise is used pure oxygen aeration device of the present utility model) variation of value.
Fig. 3 is the variation that certain photovoltaic solar enterprise uses SVI value behind the pure oxygen aeration device of the present utility model.
Embodiment
See also shown in the Figure of description 1, the utility model is a kind of pure oxygen aeration device, and it is made up of several parts such as aeration tank 1, aerated precipitation tank 2, liquid oxygen storage tank 3, gasifier 4, pressure equaliser 5 and water sprayers 6.
Wherein, the top of described aeration tank 1 and aerated precipitation tank 2 is connected by a pipeline 7, is further processed thereby aeration tank 1 upper water is entered aerated precipitation tank 2.The bottom of described aeration tank 1 and aerated precipitation tank 2 is connected by a sludge return pipe 8.Described sludge return pipe 8 is provided with a mud reverse flow valve 9 and a sludge reflux pump 10.Be provided with an outlet conduit 11 in described aerated precipitation tank 2, after mud-water separation, water outlet enters follow-up processing by outlet conduit 11.
Described water sprayer 6 is arranged on the sludge return pipe 8.Described liquid oxygen storage tank 3, gasifier 4, pressure equaliser 5 and water sprayer 6 are connected successively.Between described pressure equaliser 5 and water sprayer 6, be provided with an oxygen valve 12.Wherein, the effect of described liquid oxygen storage tank 3 is the oxygen of storing liquid.The effect of described gasifier 4 is that the oxygen conversion with liquid state is the oxygen of gaseous state.The effect of described pressure equaliser 5 is can be with oxygen with certain pressure ejection.
Pure oxygen aeration device of the present utility model utilizes the method for pure oxygen solution sludge bulking as follows: the water outlet of aeration tank 1 enters aerated precipitation tank 2 through pipeline 7, and after mud-water separation, water outlet enters follow-up processing by outlet conduit 11.When sludge bulking takes place when, liquid-oxygen transporter injects liquid oxygen storage tank 3 with liquid oxygen, gasifier 4 gasification backs are by a pressure equaliser 5, oxygen after will gasifying by oxygen valve 12 and water sprayer 6 injects returned sluge in the mode that negative pressure adds, wherein, this returned sluge is that the mud of aerated precipitation tank 2 is back to mud in the sludge pipe of aeration tank by mud reverse flow valve 9 and sludge reflux pump 10.
In order to verify the validity of this method, carried out relevant test in 2 different small business of family.
Example one: serious sludge bulking phenomenon has taken place in certain dyeing waste water biochemical treatment system, SVI is up to 600ml/g, settling ratio reached 98% in 30 minutes, add pure oxygen by this kind mode, the control aeration tank dissolved oxygen is at 2mg/L, the sludge bulking phenomenon disappears in three days, and SVI is in 150, and data are seen shown in Figure 2.And adding in three days of pure oxygen, effluent quality progressively takes a turn for the better.
Example two: certain photovoltaic solar Waste Water Treatment, adopt Wastewater Treated by Activated Sludge Process.Because operational management is not good at, and serious sludge bulking problem occurs.DO(dissolved oxygen in the aeration tank) be lower than 1mg/L, the supernatant liquor muddiness, muddy water is regardless of.Microscopy finds to have a large amount of thread funguss.Add pure oxygen according to this kind mode, the sludge bulking problem has obtained solution in five days, and the settling property of mud has had tangible change, and data are shown in Figure 3 as follows.
Above embodiment only is the preferred embodiment of this creation, not in order to limiting this creation, all in this creation spirit and principle within make any modification, be equal to replacement, improvement etc., all should be included within the protection domain of this creation.
Claims (4)
1. a pure oxygen aeration device is characterized in that: comprise aeration tank, aerated precipitation tank, liquid oxygen storage tank, gasifier, pressure equaliser and water sprayer; Wherein, the top of described aeration tank and aerated precipitation tank is by a pipe connection, and the bottom connects by a sludge return pipe; Described water sprayer is arranged on the sludge return pipe; Described liquid oxygen storage tank, gasifier, pressure equaliser and water sprayer are connected successively.
2. pure oxygen aeration device as claimed in claim 1 is characterized in that: be provided with an oxygen valve between described pressure equaliser and water sprayer.
3. pure oxygen aeration device as claimed in claim 2, it is characterized in that: described sludge return pipe is provided with a mud reverse flow valve and a sludge reflux pump.
4. pure oxygen aeration device as claimed in claim 3 is characterized in that: be provided with an outlet conduit in described aerated precipitation tank.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207044153U CN203033825U (en) | 2012-12-19 | 2012-12-19 | Pure-oxygen aeration device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012207044153U CN203033825U (en) | 2012-12-19 | 2012-12-19 | Pure-oxygen aeration device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203033825U true CN203033825U (en) | 2013-07-03 |
Family
ID=48685962
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012207044153U Expired - Fee Related CN203033825U (en) | 2012-12-19 | 2012-12-19 | Pure-oxygen aeration device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203033825U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108114512A (en) * | 2016-11-29 | 2018-06-05 | 中国石油化工股份有限公司 | A kind of method for inhibiting secondary settling tank sludge bulking |
| CN110655175A (en) * | 2019-10-12 | 2020-01-07 | 上海同瑞环保科技有限公司 | Method for treating black and odorous muddy water in drainage system by using pure oxygen |
-
2012
- 2012-12-19 CN CN2012207044153U patent/CN203033825U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108114512A (en) * | 2016-11-29 | 2018-06-05 | 中国石油化工股份有限公司 | A kind of method for inhibiting secondary settling tank sludge bulking |
| CN110655175A (en) * | 2019-10-12 | 2020-01-07 | 上海同瑞环保科技有限公司 | Method for treating black and odorous muddy water in drainage system by using pure oxygen |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: SHAOXING KEQIAO JIANGBIN WATER TREAT CO., LTD. Free format text: FORMER NAME: SHAOXING JIANGBIN WATER TREAT CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: Binhai Industrial Park 312072 Zhejiang city of Shaoxing province Keqiao District Hing RD and North Road eleven Patentee after: SHAOXING KEQIAO RIVERSIDE WATER TREATMENT Co.,Ltd. Address before: 312072, Binjiang, Shaoxing province Shaoxing Binhai Industrial Zone, South Road, Zhejiang intersection Patentee before: Shaoxing County Jiangbin Water Treatment Co.,Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130703 Termination date: 20211219 |