CN105621830A - Hydrodynamic cavitation system for increasing carbon source and reducing source sludge and working process thereof - Google Patents
Hydrodynamic cavitation system for increasing carbon source and reducing source sludge and working process thereof Download PDFInfo
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- CN105621830A CN105621830A CN201610119951.XA CN201610119951A CN105621830A CN 105621830 A CN105621830 A CN 105621830A CN 201610119951 A CN201610119951 A CN 201610119951A CN 105621830 A CN105621830 A CN 105621830A
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- Prior art keywords
- sludge
- mud
- hydrodynamic cavitation
- pond
- carbon source
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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
- C02F11/00—Treatment of sludge; Devices therefor
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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
- C02F11/00—Treatment of sludge; Devices therefor
- C02F11/02—Biological treatment
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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
- C02F2303/00—Specific treatment goals
- C02F2303/06—Sludge reduction, e.g. by lysis
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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
- Y02W10/20—Sludge processing
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- Life Sciences & Earth Sciences (AREA)
- Water Supply & Treatment (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Molecular Biology (AREA)
- Health & Medical Sciences (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
- Treatment Of Sludge (AREA)
- Jet Pumps And Other Pumps (AREA)
Abstract
The invention discloses a hydrodynamic cavitation system for increasing the carbon source and reducing source sludge and a working process thereof and belongs to the technical field of sewage treatment. A hydrodynamic cavitation device and a sludge return pump are arranged in a sludge reduction pond. The hydrodynamic cavitation device is connected with an ejector through a diffusion tube by means of a reducing nozzle, the reducing nozzle is provided with a negative pressure cavity connected with an annular air suction tube, and air, water and sludge mixing liquid is formed at an outlet of the reducing nozzle. Hydrodynamic cavitation is conducted on the air, water and sludge mixing liquid at the position of the outlet of the reducing nozzle and at the position of an outlet of a spray tube of an ejector by means of the hydrodynamic cavitation device, macromolecule activated sludge is converted into micromolecule substances extremely prone to biodegradation, micromolecules obtained through conversion are mainly composed of carbohydrate, 60-90% of macromolecule activated sludge can be converted into micromolecules extremely prone to biodegradation, micromolecule substances obtained through conversion serve as the carbon source to increase the content of BOD in source sewage, and in this way, biodegradability of source sewage is effectively improved and sludge treatment expense and manual carbon source increasing cost are reduced.
Description
Technical field
The present invention relates to a kind of the Hydrodynamic cavitation system and the working process thereof that increase carbon source/Sources decreasing mud, belong to technical field of sewage.
Background technology
After the every 10000 tons of sewage disposals of current urban wastewater treatment firm, sludge output (in water ratio 80%) is about 5-8 ton, and containing objectionable impuritiess such as pathogenic agent, heavy metal and permanent organism in mud, these materials also need to process further. Current sludge treating block main both at home and abroad has the technology such as concentrated, burning, landfill, anaerobic digestion, sludge degradation, these all belong to the Technology it processed after mud produces, and these processing modes are brought is huge facility investment and high working cost, meanwhile, secondary pollution and security risk are difficult to avoid.
Sludge treatment is most economical, the method for benefit picks up from source, reduces the generation of excess sludge in sewage treatment process.
Summary of the invention
In order to overcome problems of the prior art, the present invention provides a kind of Hydrodynamic cavitation device increasing carbon source/Sources decreasing mud, this Hydrodynamic cavitation device is by gas, water, mud mixed solution is in variable-diameter spray head outlet and injector outside nozzle generation Hydrodynamic cavitation phenomenon, macromole active sludge is converted into the small-molecule substance of very easily biological degradation, small molecules after conversion is formed primarily of carbohydrate, 60%-90% macromole active sludge can be changed into the small molecules of very easily biological degradation, small-molecule substance after conversion increases the BOD content in the sewage of source as carbon source, the biodegradability of so effective raising source sewage, reduce sludge treatment expense and reduce the artificial cost increasing carbon source.
The technical solution used in the present invention: a kind of Hydrodynamic cavitation system increasing carbon source/Sources decreasing mud, it comprises the anaerobic pond connected successively, anoxic pond, aeration tank, settling tank, sludge reflux pond and mud storage pond, it also comprises mud decrement pond, mud decrement pond is provided with Hydrodynamic cavitation device and sludge reflux pump, the storage of described mud is provided with sludge pump in pond, sludge pump is by being connected with Hydrodynamic cavitation device for mud pipeline, sludge reflux pump is connected with anaerobic pond by transmission pipeline, the bottom in mud storage pond is connected with sludge dewatering machine room through excess sludge pipeline, it is connected with anaerobic pond through returned sluge pipeline, described Hydrodynamic cavitation device adopts variable-diameter spray head to connect injector through diffuser tube, and variable-diameter spray head is provided with the negative pressure chamber being connected with annular air tail pipe, from entering out, diameter 300mm turns into exit diameter 50mm to the diameter of described variable-diameter spray head, and reducing length is 600mm, described injector distance mud decrement pond bottom surface 2000mm, injector is made up of the stainless steel tube at 10 diameters to be 32mm sinuousness be 45 degree of angles.
The working process of a kind of Hydrodynamic cavitation system increasing carbon source/Sources decreasing mud: the variable-diameter spray head supplying mud Cemented filling to Hydrodynamic cavitation device is passed through in mud storage pond through sludge pump, gas is formed in variable-diameter spray head exit, water, the mixed solution of mud, macromole active sludge is excited into the small-molecule substance of very easily biological degradation by the hydrodynamic cavitation effect utilizing variable-diameter spray head to export, the mixed solution of a cavitation forms two cavitations through diffuser tube to the spout place of injector, the macromole active sludge not intensified completely carries out being excited into the small-molecule substance of very easily biological degradation further, by there being the macromole active sludge of 60-90% to be excited into the small-molecule substance of very easily biological degradation after two Hydrodynamic cavitations, it is transported in anaerobic pond as the BOD content in the sewage of carbon source increase source by sludge reflux pump again, reach and reduce mud and increase carbon source in the sewage of source.
The useful effect of the present invention is: the Hydrodynamic cavitation system that this kind increases carbon source/Sources decreasing mud comprises the anaerobic pond, anoxic pond, aeration tank, settling tank, sludge reflux pond, mud storage pond and the mud decrement pond that connect successively, is provided with Hydrodynamic cavitation device and sludge reflux pump in mud decrement pond. Hydrodynamic cavitation device adopts variable-diameter spray head to connect injector through diffuser tube, and variable-diameter spray head is provided with the negative pressure chamber being connected with annular air tail pipe, variable-diameter spray head exit forms gas, water, the mixed solution of mud, macromole active sludge is excited into the small-molecule substance of very easily biological degradation by the hydrodynamic cavitation utilizing variable-diameter spray head to export, the mixed solution of a cavitation forms two cavitations through diffuser tube to the spout place of injector, the macromole active sludge not intensified completely carries out being excited into the small-molecule substance of very easily biological degradation further, by there being the macromole active sludge of 60-90% to be excited into the small-molecule substance of very easily biological degradation after two Hydrodynamic cavitations, it is transported in anaerobic pond as the BOD content in the sewage of carbon source increase source by sludge reflux pump again, reach and reduce mud and increase carbon source in the sewage of source. small-molecule substance after conversion increases the BOD content in the sewage of source as carbon source, effectively raises the biodegradability of source sewage like this, decreases sludge treatment expense and reduces the artificial cost increasing carbon source.
Accompanying drawing explanation
Fig. 1 is the principle of work figure of a kind of Hydrodynamic cavitation system increasing carbon source/Sources decreasing mud.
Fig. 2 is the schematic diagram of Hydrodynamic cavitation device.
In figure: 1, anaerobic pond, 2, anoxic pond, 3, aeration tank, 4, settling tank, 5, sludge reflux pond, 6, mud storage pond, 7, sludge pump, 8, mud decrement pond, 9, Hydrodynamic cavitation device, 9a, variable-diameter spray head, 9b, annular air tail pipe, 9c, negative pressure chamber, 9d, diffuser tube, 9e, injector, 10, sludge reflux pump, 11, sludge dewatering machine room, 12, wastewater influent pipeline, 13, transmission pipeline, 14, for mud pipeline, 15, excess sludge pipeline, 16, returned sluge pipeline, 17, outlet conduit.
Embodiment
Below in conjunction with the drawings and the specific embodiments, the present invention will be described:
Fig. 1 shows the principle of work figure of a kind of Hydrodynamic cavitation system increasing carbon source/Sources decreasing mud. in figure, the Hydrodynamic cavitation system that this kind increases carbon source/Sources decreasing mud comprises the anaerobic pond 1 connected successively, anoxic pond 2, aeration tank 3, settling tank 4, sludge reflux pond 5, mud storage pond 6 and mud decrement pond 8, mud decrement pond 8 is provided with Hydrodynamic cavitation device 9 and sludge reflux pump 10, mud storage is provided with sludge pump 7 in pond 6, sludge pump 7 is by being connected with Hydrodynamic cavitation device 9 for mud pipeline 14, sludge reflux pump 10 is connected with anaerobic pond 1 by transmission pipeline 13, the bottom in mud storage pond 6 is connected with sludge dewatering machine room 11 through excess sludge pipeline 15, it is connected with anaerobic pond 1 through returned sluge pipeline 16.
Fig. 2 shows the schematic diagram of Hydrodynamic cavitation device. Hydrodynamic cavitation device 9 adopts variable-diameter spray head 9a to connect injector 9e, variable-diameter spray head 9a through diffuser tube 9d and is provided with the mixed solution that the 9c variable-diameter spray head 9a exit, negative pressure chamber being connected with annular air tail pipe 9b forms gas, water, mud. From entering out, diameter 300mm turns into exit diameter 50mm to the diameter of variable-diameter spray head 9a, and reducing length is 600mm. Injector 9e distance mud decrement pond bottom surface 2000mm, injector is made up of the stainless steel tube at 10 diameters to be 32mm sinuousness be 45 degree of angles.
Adopting above-mentioned technical scheme, the basic working process of a kind of Hydrodynamic cavitation system increasing carbon source/Sources decreasing mud is as follows:
The variable-diameter spray head 9a being transported to Hydrodynamic cavitation device 9 for mud pipeline 14 is passed through in mud storage pond 6 through sludge pump 7, gas is formed in variable-diameter spray head 9a exit, water, the mixed solution of mud, macromole active sludge is excited into the small-molecule substance of very easily biological degradation by the hydrodynamic cavitation effect utilizing variable-diameter spray head 9a to export, the mixed solution of a cavitation forms two cavitations through the spout place of diffuser tube 9d to injector 9e, the macromole active sludge not intensified completely carries out being excited into the small-molecule substance of very easily biological degradation further, by there being the macromole active sludge of 60%-90% to be excited into the small-molecule substance of very easily biological degradation after two Hydrodynamic cavitations, it is transported in anaerobic pond 1 by sludge reflux pump 10 again and increases the BOD content in the sewage of source as carbon source, reach and reduce mud and increase carbon source in the sewage of source.
Claims (2)
1. one kind increases the Hydrodynamic cavitation system of carbon source/Sources decreasing mud, it comprises the anaerobic pond (1) connected successively, anoxic pond (2), aeration tank (3), settling tank (4), sludge reflux pond (5) and mud storage pond (6), it is characterized in that: it also comprises mud decrement pond (8), mud decrement pond (8) are provided with Hydrodynamic cavitation device (9) and sludge reflux pump (10), described mud storage pond (6) is provided with sludge pump (7), sludge pump (7) is by being connected with Hydrodynamic cavitation device (9) for mud pipeline (14), sludge reflux pump (10) is connected with anaerobic pond (1) by transmission pipeline (13), the bottom of mud storage pond (6) is connected with sludge dewatering machine room (11) through excess sludge pipeline (15), it is connected with anaerobic pond (1) through returned sluge pipeline (16), described Hydrodynamic cavitation device (9) adopts variable-diameter spray head (9a) to connect injector (9e) through diffuser tube (9d), and variable-diameter spray head (9a) is provided with the negative pressure chamber (9c) being connected with annular air tail pipe (9b), from entering out, diameter 300mm turns into exit diameter 50mm to the diameter of described variable-diameter spray head (9a), and reducing length is 600mm, described injector (9e) distance mud decrement pond bottom surface 2000mm, injector is made up of the stainless steel tube at 10 diameters to be 32mm sinuousness be 45 degree of angles.
2. the working process of a kind of Hydrodynamic cavitation system increasing carbon source/Sources decreasing mud according to claim 1, it is characterized in that: described mud storage pond (6) passes through the variable-diameter spray head (9a) being transported to Hydrodynamic cavitation device (9) for mud pipeline (14) through sludge pump (7), gas is formed in variable-diameter spray head (9a) exit, water, the mixed solution of mud, macromole active sludge is excited into the small-molecule substance of very easily biological degradation by the hydrodynamic cavitation effect utilizing variable-diameter spray head (9a) to export, the mixed solution of a cavitation forms two cavitations through diffuser tube (9d) to the spout place of injector (9e), the macromole active sludge not intensified completely carries out being excited into the small-molecule substance of very easily biological degradation further, by there being the macromole active sludge of 60%-90% to be excited into the small-molecule substance of very easily biological degradation after two Hydrodynamic cavitations, it is transported in anaerobic pond (1) by sludge reflux pump (10) again and increases the BOD content in the sewage of source as carbon source, reach and reduce mud and increase carbon source in the sewage of source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610119951.XA CN105621830A (en) | 2016-03-03 | 2016-03-03 | Hydrodynamic cavitation system for increasing carbon source and reducing source sludge and working process thereof |
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| CN201610119951.XA CN105621830A (en) | 2016-03-03 | 2016-03-03 | Hydrodynamic cavitation system for increasing carbon source and reducing source sludge and working process thereof |
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| CN105621830A true CN105621830A (en) | 2016-06-01 |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106268229A (en) * | 2016-08-16 | 2017-01-04 | 南京格洛特环境工程股份有限公司 | A kind of technique of Hydrodynamic cavitation intensive treatment volatile organic waste gas |
| WO2018201304A1 (en) * | 2017-05-02 | 2018-11-08 | 东莞源控环保科技有限公司 | Wastewater treatment system and method for effective volume reduction of organic sludge |
| WO2018201302A1 (en) * | 2017-05-02 | 2018-11-08 | 东莞源控环保科技有限公司 | Denitrification treatment system and method for urban wastewater |
| CN110194573A (en) * | 2019-06-06 | 2019-09-03 | 第一环保（深圳）股份有限公司 | A kind of sludge Sources decreasing method and apparatus based on Hydrodynamic cavitation mechanism |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106268229A (en) * | 2016-08-16 | 2017-01-04 | 南京格洛特环境工程股份有限公司 | A kind of technique of Hydrodynamic cavitation intensive treatment volatile organic waste gas |
| WO2018201304A1 (en) * | 2017-05-02 | 2018-11-08 | 东莞源控环保科技有限公司 | Wastewater treatment system and method for effective volume reduction of organic sludge |
| WO2018201302A1 (en) * | 2017-05-02 | 2018-11-08 | 东莞源控环保科技有限公司 | Denitrification treatment system and method for urban wastewater |
| CN110194573A (en) * | 2019-06-06 | 2019-09-03 | 第一环保（深圳）股份有限公司 | A kind of sludge Sources decreasing method and apparatus based on Hydrodynamic cavitation mechanism |
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Application publication date: 20160601 |