CN204022633U - A kind of residual sludge reduction treatment unit - Google Patents
A kind of residual sludge reduction treatment unit Download PDFInfo
- Publication number
- CN204022633U CN204022633U CN201420381072.0U CN201420381072U CN204022633U CN 204022633 U CN204022633 U CN 204022633U CN 201420381072 U CN201420381072 U CN 201420381072U CN 204022633 U CN204022633 U CN 204022633U
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- Prior art keywords
- reaction tank
- tank
- aeration
- treatment unit
- sludge reduction
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- 239000010802 sludge Substances 0.000 title claims abstract description 61
- 230000009467 reduction Effects 0.000 title claims abstract description 17
- 238000006243 chemical reaction Methods 0.000 claims abstract description 72
- 238000005273 aeration Methods 0.000 claims abstract description 46
- 239000000463 material Substances 0.000 claims abstract description 24
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 12
- 238000005276 aerator Methods 0.000 claims abstract description 11
- 238000001556 precipitation Methods 0.000 claims abstract description 7
- 230000000630 rising effect Effects 0.000 claims abstract description 6
- 238000013022 venting Methods 0.000 claims abstract description 5
- 239000000203 mixture Substances 0.000 claims description 16
- 238000005265 energy consumption Methods 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 17
- 230000008569 process Effects 0.000 description 15
- 239000010865 sewage Substances 0.000 description 11
- 238000005842 biochemical reaction Methods 0.000 description 8
- 230000029087 digestion Effects 0.000 description 8
- 230000007246 mechanism Effects 0.000 description 8
- 230000008901 benefit Effects 0.000 description 6
- 238000007599 discharging Methods 0.000 description 6
- 230000009471 action Effects 0.000 description 5
- 230000008676 import Effects 0.000 description 4
- 238000000197 pyrolysis Methods 0.000 description 4
- 239000000706 filtrate Substances 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000011946 reduction process Methods 0.000 description 3
- 238000000926 separation method Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000018044 dehydration Effects 0.000 description 2
- 238000006297 dehydration reaction Methods 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000005189 flocculation Methods 0.000 description 2
- 230000016615 flocculation Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000000737 periodic effect Effects 0.000 description 2
- 239000010801 sewage sludge Substances 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- XKMRRTOUMJRJIA-UHFFFAOYSA-N ammonia nh3 Chemical compound N.N XKMRRTOUMJRJIA-UHFFFAOYSA-N 0.000 description 1
- 239000003153 chemical reaction reagent Substances 0.000 description 1
- 239000002361 compost Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002244 precipitate Substances 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 239000011343 solid material Substances 0.000 description 1
- 230000001360 synchronised effect Effects 0.000 description 1
- 230000008719 thickening Effects 0.000 description 1
- 239000002351 wastewater Substances 0.000 description 1
Landscapes
- Treatment Of Sludge (AREA)
- Activated Sludge Processes (AREA)
Abstract
The utility model discloses a kind of residual sludge reduction treatment unit, this device is intermittent cycle upper reaches high concentration sludge bed treatment system, comprises and arranges reaction tank, aeration tank, aerator, return line and material pump.Described reaction tank upper end return line is connected with bottom, aeration tank, and top is provided with venting port, and upper end is provided with effluent weir and rising pipe, and lower end is provided with shore pipe, and inside is also provided with triphase separator; The outlet of described return line is arranged at central authorities of triphase separator top muddy water mixed precipitation district in reaction tank, and material pump feeding mouth, respectively with the discharge port of aeration tank with enter mud pipe and is connected, expects that pump discharge port is connected with reaction tank lower end with entering mud pipe.It is simple that the utility model device has structure, less investment, the features such as energy consumption is low, and sludge reduction is effective.
Description
Technical field
The utility model belongs to technical field of sewage, relates to a kind of residual sludge reduction treatment unit, particularly a kind of intermittent cycle upper reaches high concentration sludge bed treatment system.
Background technology
Along with the development in city and the continuous expansion of urban population, the quantity discharged of trade effluent and sanitary sewage is increasing, and in corresponding sewage treatment process, mud quantum of output also increases sharply.According to the firmly portion of building statistics, by by the end of March, 2014, national the planned city, county (not containing other organic town) is accumulative builds up sewage work 3622, sewage treatment capacity about 1.53 billion cubic meters/day, comparatively newly-increased about 430 ten thousand steres/day in the end of the year 2013.Activated sludge process is the most widely used biologic treating technique of current city domestic sewage process, a large amount of excess sludges can be produced in the process of Wastewater Treated by Activated Sludge Process sanitary sewage, in water ratio 80%, year mud total generation in the whole nation is more than 3,000 ten thousand tons, if do not carry out appropriate process to dispose, great harm will be caused to environment.The sludge problem that sewage work produces becomes increasingly conspicuous, and develops a kind of efficient, economic mud decrement gasifying device and seems particularly important.
The most frequently used process method of disposal of excess sludge is concentrated, anaerobic digestion, mechanical dehydration, mummification, compost, burning and landfill etc.The main function of excess sludge treatment unit makes mud realize minimizing by modes such as thickening, anaerobic digestion, pyrolysis.Chinese patent 201220501745.2(application number) disclose a kind of excess sludge supersonic dewatering device, this device comprises dehydration ultrasonic reactor, excess sludge feedwater piping, feedwater piping valve, filtrate outlet pipeline, thickened sludge outlet conduit, ultrasonic generator, wherein filtrate outlet pipeline port is provided with filtrate outlet pipeline valve, thickened sludge outlet conduit port is provided with thickened sludge outlet conduit valve, and excess sludge feedwater piping is provided with the pipeline adding flocculation agent.This dewatering unit needs to configure multiple powerful ultra-sonic generator, and price costly, consumes energy high, and needs interpolation flocculation agent to process, and easily introduces new impurity.Chinese patent 201110341054.0(application number) disclose a kind of system processing residual sludge decrement synchronous denitrification, this system comprises control device, main reactor, former water injecting mechanism, mud injecting mechanism and drainage mechanism and mud discharging mechanism, its Central Plains water injecting mechanism, mud injecting mechanism, drainage mechanism is connected with main reactor all respectively with mud discharging mechanism, the sidewall of main reactor is respectively equipped with the pH sensor and ORP sensor that are connected with control device, the temperature control unit for controlling described main reaction region internal temperature is provided with at the top of main reactor.This denitrification treatment system structure is more complicated, and cost is high, needs to use computer and sensor to carry out meticulous control to treating processes, demands strict technology, is unfavorable for large-scale promotion.Chinese patent 201220311040.4(application number) disclose a kind of residual sludge reduction pyrolysis installation, this device comprises pressure pump, heat exchanger and reactor, excess sludge is by pressure pump import access to plant, pressure pump outlet connects the import of the heat-absorbing chamber of heat exchanger, the outlet of the heat-absorbing chamber of heat exchanger connects the import of reactor, the outlet of reactor connects the import in heat exchanger heat release chamber, the mud after the outlet discharge minimizing pyrolysis in the heat release chamber of heat exchanger.This pyrolysis installation produces High Temperature High Pressure, requires high to reactor, and treating processes power consumption is higher.
These devices above, construct all more complicated, and treatment condition require higher, and belong to highly energy-consuming equipment, both improve processing cost, and are unfavorable for again the construction of conservation-minded society.Therefore, develop a kind of structure simple, technically reliable, the sludge reduction treatment unit that simple to operate, processing efficiency is high, less investment, power consumption are low, solve an excess sludge process difficult problem, have great economic benefit, social benefit and ecological benefits.
Summary of the invention
The purpose of this utility model is to overcome prior art deficiency, provide a kind of structure simple, consume energy low and reduce the device of the residual sludge reduction process of sewage sludge solid material content from source.
The utility model is achieved in that
A kind of residual sludge reduction treatment unit, for intermittent cycle upper reaches high concentration sludge bed treatment system, comprise reaction tank, aeration tank, aerator and material pump composition, the described reaction tank upper end feeding mouth of charge tube with bottom, aeration tank is connected, the discharge port of described aeration tank is connected with material pump feeding mouth with Y-tube by valve with return line, described material pump discharge port is connected with reaction tank lower end with entering mud pipe, another of described Y-tube connects mouth and enters mud pipe and be connected, and described aerator aeration tube is connected with aeration tank.
Further preferably, described reaction tank top is provided with venting port, and upper end is provided with effluent weir and rising pipe, and lower end is provided with shore pipe, and described reaction tank inside is also provided with triphase separator.
Further preferably, the feeding mouth of described charge tube is arranged at central authorities of muddy water mixed precipitation district, reaction tank upper end.
Further preferably, the described discharge port entering mud pipe is hydraucone, and hydraucone is arranged at reaction tank lower end central authorities, and hydraucone upwards.
Further preferably, the outlet side of described aeration tube is placed in the bottom center of aeration tank.
Principle of work of the present utility model is:
With the mode process excess sludge of intermittent operation, a treatment cycle comprises into discharging spoil disposal, biochemical reaction and sludge settling three steps.Excess sludge is passed through enter reaction tank into mud pipe through the lifting of material pump.Complete after mud, excess sludge circulates and upwards flows in the system be made up of reaction tank, return line, aeration tank, material pump, aerator in aeration tank to mud mixture aeration aerating, mud mixture hocket aerobic-hold concurrently oxygen-anaerobic biochemical reaction, organism in excess sludge is degraded to transform and removes, and macrobead mud precipitates in reaction tank.
After biochemical reaction completes, excess sludge is passed through enter reaction tank into mud pipe through the lifting of material pump, released from reaction tank top rising pipe by the isolated sewage of upper one-period minimizing lignin-sludge simultaneously and realize draining, the inorganic mud after digestion decrement is discharged from shore pipe and is realized spoil disposal.After upper one-period minimizing process water and inorganic mud discharging complete, by expecting the castering action of pump, make new mud mixture in reaction tank by reaction tank, return line, circulate in the recycle system of aeration tank and charge tube composition and carry out biochemical reaction and precipitation, in mud, organism is fully degraded, macrobead sludge settling after digestion decrement is bottom reaction tank, realize mud-water separation, the sewage be separated filters the subparticle suspended substance in recirculation water by the fixed bed sludge blanket at the bottom of reaction tank, be purified further, the mode of intermittent operation of realizing going round and beginning again carries out residual sludge reduction process.
Compared with prior art, tool has the following advantages the utility model:
1, after residual sludge reduction treatment unit can make excess sludge flow into reaction tank and a upper periodic reaction, the discharge of sewage sludge is carried out simultaneously, and do not need to add extra outer row's equipment, structure is simple, and investment reduction expense, simplify the operation flow process.
2, high concentration sludge bed system in intermittent cycle upper reaches can form the biochemical reaction that aerobic-anaerobic-anaerobism cycle alternation carries out, and thoroughly, ammonia nitrogen removal efficiency is high, and sludge reduction is effective in mud organic substance degraded.
3, intermittent cycle upper reaches high concentration sludge bed system volume is large, speed of response fast, and sludge treatment efficiency is high.
4, intermittent cycle upper reaches high concentration sludge bed system energy consumption is low, does not need to add chemical reagent, has good economic benefit and environmental benefit, the production and construction requirement of suitable extensive sludge treatment factory.
Accompanying drawing explanation
Fig. 1 is intermittent type residual sludge reduction treatment unit diagrammatic cross-section;
Identify in figure: 1-venting port, 2-rising pipe, 3-effluent weir, 4-triphase separator, 5-reaction tank, 6-shore pipe, 7-enters mud pipe, and 8-expects pump, 9-return line, 10-charge tube, 11-aerator, 12-aeration tube, 13-aeration tank.
Embodiment
Below in conjunction with specific embodiment, the utility model is further described.
The high concentration sludge bed treatment system reaction tank useful volume design considerations of intermittent cycle upper reaches is as follows:
V=QS
0/qt
In formula: the volume (m of V-reaction tank
3)
Q-reaction tank one-period enter mud amount (m
3)
S
0-enter mud organic concentration (kgVS/m
3)
Q-organic volumetric loading (kgVS/m
3d)
T-hydraulic detention time (d).
Embodiment
As shown in Figure 1, device of the present utility model comprises reaction tank 5, aeration tank 13, aerator 11 and material pump 8 and forms, the reaction tank 5 upper end feeding mouth of charge tube 10 with aeration tank 13 bottom center is connected, the discharge port of aeration tank 13 is connected with material pump 8 feeding mouth with Y-tube by valve with return line 9, material pump 8 discharge port is connected with reaction tank 5 lower end with entering mud pipe 7, another of Y-tube connects mouth and enters mud pipe and be connected, and aerator 11 aeration tube 12 is connected with aeration tank 13.
Reaction tank 5 top is provided with venting port 1, and upper end is provided with effluent weir and rising pipe 2, and lower end is provided with shore pipe 6, and inside is also provided with triphase separator 4.
The feeding mouth of charge tube 10 is arranged at central authorities of muddy water mixed precipitation district, reaction tank 5 upper end.
The discharge port entering mud pipe 7 is hydraucone, and hydraucone is arranged at reaction tank 5 lower end central authorities, and hydraucone upwards.
The outlet side of aeration tube 12 is placed in the bottom center of aeration tank 13.
During residual sludge reduction process, in the one-period of intermittent operation, excess sludge promotes through material pump 8 and enters inflow bottom reaction tank 5 from entering mud pipe 7, and enter when mud amount reaches the design reaction volume of reaction tank 5 and stop into mud, aeration tank 13 is also full of mud mixture simultaneously.Enter the reaction period, now do not enter mud and draining spoil disposal in reaction tank, utilize material pump 8 castering action, to make in reaction tank 5 mud mixture by reaction tank 5, return line 9, aeration tank 13, circulate in the recycle system that material pump 8 forms and upwards flow, flowing-path is for flow into bottom aeration tank from reaction tank 5 top through charge tube 10, mud mixture after aeration flows out from top, aeration tank 13, bottom reaction tank, reaction tank 5 is flowed back to through punishment in advance pump, mud mixture aeration aerating in aerator 11 pairs of aeration tanks 13 simultaneously, make Sludge Bed in reaction tank 5 be in fluidized state hocket aerobic-hold concurrently oxygen-anaerobic biochemical reaction.When excess sludge is through fully digestion, most organic is degraded removal, and sludge reduction completes, and enters the sludge settling phase.Mud, not draining, not spoil disposal and not aeration is not entered in precipitation phase reaction tank 5, in reaction tank 5, mud mixture utilizes material pump 8 castering action upwards to flow with the circulation of lower velocity of flow in the recycle system be made up of reaction tank 5, return line 9, aeration tank 13, material pump 8, macrobead sludge settling after digestion decrement, bottom reaction tank 5, realizes mud-water separation.A cycle of operation is completed through above three steps.
After first cycle of operation, back and forth will complete periodic running according to following three step cycle:
(1) discharging spoil disposal is entered: when entering discharging spoil disposal, the mud mixture of reaction tank 5 does not carry out circulating reaction and aeration, the mode that the mud materials pump 8 that need process advances with upper reaches enters reaction tank 5, discharged from the rising pipe 2 on reaction tank 5 top by a upper cycle of operation isolated sewage, the inorganic mud after digestion decrement is regularly discharged from the shore pipe 6 of reaction tank 5 bottom simultaneously;
(2) biochemical reaction: do not enter mud and draining spoil disposal in reaction period reaction tank 5, utilize material pump 8 castering action, to make in reaction tank 5 mud mixture by reaction tank 5, return line 9, aeration tank 13, circulate in the recycle system that material pump 8 forms, flowing-path is for flow into bottom aeration tank 13 from reaction tank 5 top through charge tube 10, mud mixture after aeration flows out from top, aeration tank 13, bottom reaction tank 5, reaction tank 5 is flowed back to through punishment in advance pump 8, mud mixture aeration aerating in aerator 11 pairs of aeration tanks 13 simultaneously, make Sludge Bed in reaction tank 5 be in fluidized state and carry out biochemical reaction,
(3) sludge settling: do not enter mud, not draining, not spoil disposal and not aeration in precipitation phase reaction tank 5, in reaction tank 5, mud mixture utilizes material pump 8 castering action to circulate with comparatively low flow velocity by step (2) described flowing-path in the recycle system be made up of reaction tank 5, return line 9, aeration tank 13, material pump 8 upwards to flow, macrobead sludge settling after digestion decrement, bottom reaction tank 5, realizes mud-water separation.
Claims (4)
1. a residual sludge reduction treatment unit, for intermittent cycle upper reaches high concentration sludge bed treatment system, it is characterized in that: comprise reaction tank (5), aeration tank (13), aerator (11) and material pump (8) composition, described reaction tank (5) upper end charge tube (10) is connected with aeration tank (13) bottom, the discharge port of described aeration tank (13) is connected with material pump (8) feeding mouth with Y-tube by valve with return line (9), described material pump (8) discharge port is connected with reaction tank (5) lower end with entering mud pipe (7), another of described Y-tube connects mouth and enters mud pipe and be connected, described aerator (11) aeration tube (12) is connected with aeration tank (13).
2. a kind of residual sludge reduction treatment unit according to claim 1, it is characterized in that: described reaction tank (5) top is provided with venting port (1), upper end is provided with effluent weir and rising pipe (2), lower end is provided with shore pipe (6), and described reaction tank (5) inside is also provided with triphase separator (4).
3. a kind of residual sludge reduction treatment unit according to claim 1, is characterized in that: the feeding mouth of described charge tube (10) is arranged at central authorities of muddy water mixed precipitation district, reaction tank (5) upper end.
4. a kind of residual sludge reduction treatment unit according to claim 1, is characterized in that: the described discharge port entering mud pipe (7) is hydraucone, and hydraucone is arranged at reaction tank (5) lower end central authorities, and hydraucone upwards.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420381072.0U CN204022633U (en) | 2014-07-11 | 2014-07-11 | A kind of residual sludge reduction treatment unit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420381072.0U CN204022633U (en) | 2014-07-11 | 2014-07-11 | A kind of residual sludge reduction treatment unit |
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| CN204022633U true CN204022633U (en) | 2014-12-17 |
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| CN201420381072.0U Expired - Lifetime CN204022633U (en) | 2014-07-11 | 2014-07-11 | A kind of residual sludge reduction treatment unit |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105399296A (en) * | 2015-11-23 | 2016-03-16 | 暨南大学 | Natural biological sludge concentration and drying tank suitable for low-flow sewage treatment system |
| CN107459130A (en) * | 2017-09-07 | 2017-12-12 | 陕西省环境科学研究院 | A kind of intermittent aerating circular form biochemical reactor and intermittent aerating round-robin method |
| CN110002584A (en) * | 2019-05-15 | 2019-07-12 | 东华大学 | Efficient integrated excess sludge anaerobic digester |
-
2014
- 2014-07-11 CN CN201420381072.0U patent/CN204022633U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105399296A (en) * | 2015-11-23 | 2016-03-16 | 暨南大学 | Natural biological sludge concentration and drying tank suitable for low-flow sewage treatment system |
| CN107459130A (en) * | 2017-09-07 | 2017-12-12 | 陕西省环境科学研究院 | A kind of intermittent aerating circular form biochemical reactor and intermittent aerating round-robin method |
| CN110002584A (en) * | 2019-05-15 | 2019-07-12 | 东华大学 | Efficient integrated excess sludge anaerobic digester |
| CN110002584B (en) * | 2019-05-15 | 2021-06-04 | 东华大学 | Efficient integrated excess sludge anaerobic digester |
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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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 530007 Nanning high tech Zone, high tech Road, No. 1, Guangxi University, science and Technology Park, building 5, building two Patentee after: GUANGXI YIJIANG ENVIRONMENTAL PROTECTION TECHNOLOGY CO.,LTD. Address before: 530007 Nanning high tech Zone, high tech Road, No. 1, Guangxi University, science and Technology Park, building 5, building two Patentee before: Guangxi Yijiang Environmental Protection Technology Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141217 |