CN106145350A - A kind of mud micropowder that adds maintains aerobic particle mud stable and the method for strengthened denitrification - Google Patents
A kind of mud micropowder that adds maintains aerobic particle mud stable and the method for strengthened denitrification Download PDFInfo
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- CN106145350A CN106145350A CN201610643025.2A CN201610643025A CN106145350A CN 106145350 A CN106145350 A CN 106145350A CN 201610643025 A CN201610643025 A CN 201610643025A CN 106145350 A CN106145350 A CN 106145350A
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- mud
- aerobic particle
- reactor
- micropowder
- particle mud
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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
- C02F3/302—Nitrification and denitrification 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
- 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
- C02F3/00—Biological treatment of water, waste water, or sewage
- C02F3/02—Aerobic processes
- C02F3/12—Activated sludge processes
- C02F3/1205—Particular type of activated sludge processes
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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
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- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Microbiology (AREA)
- Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
Abstract
A kind of mud micropowder that adds maintains aerobic particle mud stable and the method for denitrogenation, and including taking sewage treatment plant residual mud, drying and crushing obtains mud micropowder to 100 800 mesh；Take and start to occur the reactor of the aerobic particle mud of filamentary discharges containing granulating；Mud micropowder is put into when reactor each cycle of operation aeration terminates or denitrification starts in reactor by the dosage of 500 1000mg/L, after running 13 days, aerobic particle mud filamentary discharges in reactor substantially weakens and disappears, aerobic particle mud face shaping presents smooth mellow and full, and nitrogen removal rate reaches 80%.The present invention is simple, economical, efficient, strengthens biological denitrificaion performance under low concentration flow condition simultaneously.
Description
Technical field
The present invention relates to a kind of mud micropowder that adds maintains aerobic particle mud stable and the method for strengthened denitrification.
Technical background
Aerobic Granular Sludge Technology compares ordinary activated sludge owing to having good settling property, high sludge concentration, energy
Enough bear the characteristics such as high organic loading, load impact and noxious substance, just become all circles' research and the focus of report.Learn both at home and abroad
Person has gone out aerobic particle mud according to different reactors, experimental technique, research purpose etc. in respective laboratory cultures, and studies
Proposing various Formation Mechanism of Granular Sludge also, filamentous bacteria hypothesis and nuclei of condensation mechanism etc. become research emphasis.
Nuclei of condensation mechanism be exactly the formation of aerobic particle mud first have to nuclei of condensation come for microorganism gathering and
Growth provides place, and these nuclei of condensation can be the particle that quality is bigger in water, can be the anaerobism or aerobic of inoculation
Granule sludge, it is also possible to be the biomembrane formed on reactor wall, it might even be possible to be silk bigger in seed sludge or mixed liquor
Shape bacterium.Research shows, aerobic particle mud section shows have substantial amounts of filamentous bacteria as skeletal support inside it, but these silks
Shape bacterium under particular circumstances or the condition such as ambient temperature, humidity, influent quality, operating condition change after easy random growth,
Run out of aerobic particle mud surface so that the index high progression such as aerobic particle mud settling property, produce mud flco.
Biological denitrificaion is that building site organic nitrogen in water body is converted into nitrogen by the nitrification and denitrification effect utilizing microorganism
Process.In aerobic particle mud, microbial population enriches, and has a large amount of nitrobacteria and denitrifying bacteria, it is possible to carry out biological de-
Nitrogen, but when in water inlet carbon source less or time carbon-nitrogen ratio is relatively low, hinder Denitrification, biological denitrificaion is inefficient.
Summary of the invention
For the cycle length overcoming current aerobic particle mud to cultivate, easily there is the problems such as filamentary discharges, strengthen simultaneously
Biological denitrificaion performance under low concentration flow condition, the present invention provides a kind of simple, economical, utilizes mud micropowder to maintain efficiently
Oxygen granule sludge is stablized and the method for strengthened denitrification.
In order to solve the technical scheme that foregoing problems provides following:
A kind of mud micropowder that adds maintains aerobic particle mud stable and the method for strengthened denitrification, and described method includes as follows
Step:
(1) taking sewage treatment plant residual mud, drying and crushing obtains mud micropowder to 100-800 mesh；
(2) take and start to occur the reactor of the aerobic particle mud of filamentary discharges containing granulating；
(3) dosage that the mud micropowder in step (1) is pressed 500-1000mg/L exposes at each cycle of operation of reactor
Put into when depressed bundle or denitrification start in reactor, the aerobic particle mud filamentary discharges after running 1-3 days, in reactor
Substantially weakening and disappear, aerobic particle mud face shaping presents smooth mellow and full, and nitrogen removal rate reaches 70-85%.
The technology of the present invention is contemplated that: containing substantial amounts of graininess in the mud micropowder that sewage treatment plant residual mud is made
COD, difficult degradation COD, solubility COD and inorganic particle, the COD utilizing solubility degradable provides carbon for denitrification process
Source, beneficially biological denitrificaion；Utilizing graininess COD and inorganic particle, the formation for aerobic particle mud provides nucleus；Difficult degradation
COD major part is poisonous and harmful substance, utilizes difficult degradation COD to suppress hyphomycetic unordered breeding so that it is silk shrinks and returns
Inside aerobic particle mud, provide stable skeleton for aerobic particle mud；Utilize the inorganic particle hydraulic action when aeration
The filamentous bacteria on down cut aerobic particle mud surface, forces it to return inside aerobic particle mud from physical action.The most also
The waste sludge of sewage treatment plant is carried out recycling, obtains certain economic benefit.
The invention have the advantages that
(1) utilize the rest COD in mud micropowder, provide carbon source, enhanced biological nitrogen removal for microorganism denitrification process.
(2) utilize nuclei of condensation mechanism, utilize graininess COD in mud micropowder and inorganic particle for aerobic particle mud
Secondary you provided nucleus just now, promoted aerobic sludge granulation.
(3) poisonous and hazardous difficult degradation COD and inorganic particle in mud micropowder is utilized to suppress silk chemically and physically
Shape bacterium, in the unordered breeding on aerobic particle mud surface, forces it to return inside aerobic particle mud and maintains aerobic as skeleton
Stablizing of grain mud.
(4) changing waste into resources, low cost.
(3) simple to operate, technique is simple,.
Detailed description of the invention
Below in conjunction with specific embodiment, the present invention is described further, but protection scope of the present invention is not limited in
This.
Example 1
A kind of mud micropowder that adds maintains aerobic particle mud stable and the method for strengthened denitrification, comprises the steps:
(1) taking sewage treatment plant residual mud, drying and crushing obtains mud micropowder to 100-800 mesh；
(2) take and start to occur the reactor of the aerobic particle mud of filamentary discharges containing granulating；Use reality
Sanitary sewage for water inlet, reactor cycle of operation is 8 hours: intake 5 minutes, aeration 3 hours, stirring 4 hours, precipitate 5 minutes,
Water outlet 20 minutes, its aerobic particle mud SVI is 60ml/g；
(3) the mud micropowder in step (1) is terminated at reactor each cycle of operation aeration by the dosage of 500mg/L
Time put in reactor, after running 3 days, the aerobic particle mud filamentary discharges in reactor substantially weakens and disappears, aerobic
Granule sludge face shaping presents smooth mellow and full, and nitrogen removal rate reaches 70%.
Example 2
A kind of mud micropowder that adds maintains aerobic particle mud stable and the method for strengthened denitrification, comprises the steps:
(1) taking sewage treatment plant residual mud, drying and crushing obtains mud micropowder to 100-800 mesh；
(2) take and start to occur the reactor of the aerobic particle mud of filamentary discharges containing granulating；Use reality
Sanitary sewage for water inlet, reactor cycle of operation is 8 hours: intake 5 minutes, aeration 3 hours, stirring 4 hours, precipitate 5 minutes,
Water outlet 20 minutes, its aerobic particle mud SVI is 60ml/g；
(3) the mud micropowder in step (1) is terminated at reactor each cycle of operation aeration by the dosage of 800mg/L
Time put in reactor, after running 2 days, the aerobic particle mud filamentary discharges in reactor substantially weakens and disappears, aerobic
Granule sludge face shaping presents smooth mellow and full, and nitrogen removal rate reaches 80%.
Example 1
A kind of mud micropowder that adds maintains aerobic particle mud stable and the method for strengthened denitrification, comprises the steps:
(1) taking sewage treatment plant residual mud, drying and crushing obtains mud micropowder to 100-800 mesh；
(2) take and start to occur the reactor of the aerobic particle mud of filamentary discharges containing granulating；Use reality
Sanitary sewage for water inlet, reactor cycle of operation is 8 hours: intake 5 minutes, aeration 3 hours, stirring 4 hours, precipitate 5 minutes,
Water outlet 20 minutes, its aerobic particle mud SVI is 60ml/g；
(3) dosage that the mud micropowder in step (1) is pressed 1000mg/L is tied at reactor each cycle of operation aeration
Putting in reactor during bundle, after running 3 days, the aerobic particle mud filamentary discharges in reactor substantially weakens and disappears, good
Oxygen granule sludge face shaping presents smooth mellow and full, and nitrogen removal rate reaches 85%.
Although an embodiment of the present invention has been shown and described, it will be understood by those skilled in the art that: not
Embodiment can be carried out multiple change in the case of departing from the principle of the present invention and objective, revise, replace and modification, the present invention
Scope limited by claim and equivalent thereof.
Claims (1)
1. one kind is added mud micropowder and maintains aerobic particle mud stable and the method for strengthened denitrification, it is characterised in that: described side
Method comprises the steps:
(1) taking sewage treatment plant residual mud, drying and crushing obtains mud micropowder to 100-800 mesh；
(2) take and start to occur the reactor of the aerobic particle mud of filamentary discharges containing granulating；
(3) dosage that the mud micropowder in step (1) is pressed 500-1000mg/L is tied at reactor each cycle of operation aeration
Putting in reactor when bundle or denitrification start, after running 1-3 days, the aerobic particle mud filamentary discharges in reactor is obvious
Weakening and disappear, aerobic particle mud face shaping presents smooth mellow and full, and nitrogen removal rate reaches 70-85%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201610643025.2A CN106145350A (en) | 2016-08-05 | 2016-08-05 | A kind of mud micropowder that adds maintains aerobic particle mud stable and the method for strengthened denitrification |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610643025.2A CN106145350A (en) | 2016-08-05 | 2016-08-05 | A kind of mud micropowder that adds maintains aerobic particle mud stable and the method for strengthened denitrification |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108217924A (en) * | 2018-01-08 | 2018-06-29 | 浙江工业大学 | A kind of quick control activated sludge bulking and the method for promoting aerobic granular |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1944285A (en) * | 2006-10-20 | 2007-04-11 | 山东大学 | Use of rare-earth element in cultivating aerobic particle mud and controlling mud expansion |
| CN102674541A (en) * | 2012-05-22 | 2012-09-19 | 北京师范大学 | Method for remedying filamentous expanded aerobic granular sludge |
-
2016
- 2016-08-05 CN CN201610643025.2A patent/CN106145350A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1944285A (en) * | 2006-10-20 | 2007-04-11 | 山东大学 | Use of rare-earth element in cultivating aerobic particle mud and controlling mud expansion |
| CN102674541A (en) * | 2012-05-22 | 2012-09-19 | 北京师范大学 | Method for remedying filamentous expanded aerobic granular sludge |
Non-Patent Citations (1)
| Title |
|---|
| 谢锴: "原生动物和丝状菌对好氧颗粒污泥结构特性的影响", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108217924A (en) * | 2018-01-08 | 2018-06-29 | 浙江工业大学 | A kind of quick control activated sludge bulking and the method for promoting aerobic granular |
| CN108217924B (en) * | 2018-01-08 | 2020-12-01 | 浙江工业大学 | Method for rapidly controlling activated sludge expansion and promoting aerobic granulation |
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