CN106746426A - A kind of dehydration quantitative reduction method for storing sludge - Google Patents
A kind of dehydration quantitative reduction method for storing sludge Download PDFInfo
- Publication number
- CN106746426A CN106746426A CN201710020985.8A CN201710020985A CN106746426A CN 106746426 A CN106746426 A CN 106746426A CN 201710020985 A CN201710020985 A CN 201710020985A CN 106746426 A CN106746426 A CN 106746426A
- Authority
- CN
- China
- Prior art keywords
- sludge
- dehydration
- straw
- reduction method
- storage
- Prior art date
- 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.)
- Pending
Links
Classifications
-
- 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
-
- 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Molecular Biology (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Treatment Of Sludge (AREA)
Abstract
A kind of dehydration quantitative reduction method for storing sludge, it is related to a kind of dehydration quantitative reduction method of sludge.The present invention will improve the ratio of storage sludge and conditioner, increase the treating capacity of storage sludge, improve dehydration rate.Dehydration quantitative reduction method：First, storage sludge is mixed with straw, is then transferred to biological dewatered reactor organisms desiccation reaction.It is 8~10 that sludge is stored in the inventive method with the weight ratio of straw:1, ratio is more than 6, and material initial water content is up to more than 70%.The water content that sludge is stored after present invention dehydration minimizing is down to less than 60%, and water content reduction by more than 10% is more efficiently to reduce storage sludge volume.
Description
Technical field
The present invention relates to a kind of dehydration quantitative reduction method of sludge.
Background technology
With the enhancing of the fast-developing and sewage treatment capacity of urbanization, association sludge yield is also continuously increased simultaneously,
By in by the end of September, 2015 according to national statistics office data, national cities and towns are accumulative to build up sewage treatment plant 3830, sewage disposal energy
Power has reached 1.62 hundred million m3/ d, the sludge of association has broken through 30,000,000 t/ (moisture content 80% is counted).Therefore cause to store sludge
Yield increases year by year, and bulk deposition is littoral in urban river.In these sludge containing substantial amounts of organic matter and abundant nitrogen,
The nutrients such as phosphorus, potassium, while also containing nuisances such as heavy metal, pathogens, it is untreated to produce severe contamination to water body,
The healthy of nearby residents is even threatened, while being also the waste to resource.
Water in storage sludge is generally to combine water, can't substantially be reduced because of long-term stacking, remain within 70~
80% or so, its is bulky, and transport and treatment disposal are difficult, and easily cause secondary pollution.Therefore storage sludge is carried out
Dehydration decrement can reduce sludge volume, effectively solve problems.
The water content that will can be stored in sludge using biological dewatered reaction at present at most reduces by 8%, but requires material (storage
Depositing sludge must not with the weight ratio of conditioner>6) initial water content is no more than 65%.
The content of the invention
The present invention will improve the ratio of storage sludge and conditioner, increase the treating capacity of storage sludge, improve dehydration rate.
The dehydration quantitative reduction method for storing sludge is carried out according to the following steps：
First, sludge will be stored and straw will press 8~10:Then 1 weight be transferred to biological dewatered reactor than uniform mixing；
2nd, biological dewatered reaction：Using the intermittent aeration ventilation in bottom, 30min is an aeration ventilation cycle, each week
10min is opened in phase, 20min is closed；Aeration rate of venting is 1.2~1.6L/min of per kilogram wet stock；Biological dewatered reaction 21 ± 2
My god, that is, complete the dehydration minimizing of storage sludge；
Wherein, straw is not crushed or sheared in step one.
The present invention is processed from the storage sludge that moisture content is 85%, and moisture percentage in sewage sludge drop is stored after dehydration minimizing
To less than 60%.
It is 8~10 that the inventive method stores sludge with the weight ratio of straw:1, ratio is more than 6, and material initial aqueous
Amount is up to more than 70%.The water content that sludge is stored after present invention dehydration minimizing is down to less than 60%, water content reduction by 10%
More than, it is more efficiently to reduce storage sludge volume.
Specific embodiment
Technical solution of the present invention is not limited to act specific embodiment set forth below, also including between each specific embodiment
Any combination.
Specific embodiment one：The dehydration quantitative reduction method of present embodiment storage sludge is carried out according to the following steps：
First, sludge will be stored and straw will press 8~10:Then 1 weight be transferred to biological dewatered reactor than uniform mixing；
2nd, biological dewatered reaction：Using the intermittent aeration ventilation in bottom, 30min is an aeration ventilation cycle, each week
10min is opened in phase, 20min is closed；Aeration rate of venting is 1.2~1.6L/min of per kilogram wet stock；Biological dewatered reaction 21 ± 2
My god, that is, complete the dehydration minimizing of storage sludge；
Wherein, straw length is 10 ± 2cm in step one.
In the biological dewatered course of reaction of present embodiment step 2 every turning in 3 days once.
Specific embodiment two：Present embodiment is with the difference of specific embodiment one：Outside biological dewatered reactor
With the thick polyester fiber plastic wraps of 15cm.Other steps and parameter are identical with implementation method one.
Present embodiment more effectively can be incubated to biological dewatered reactor.
Specific embodiment three：Present embodiment is with the difference of specific embodiment one or two：Rice in step one
Careless moisture content is that 15%, sample volatile solid content is 88%.Other steps and parameter are identical with implementation method one or two.
Specific embodiment four：Present embodiment is with the difference of specific embodiment one, two or three：Step by step in rapid one
Straw prescind to 10 ± 2cm, then surface sprinkling ammonium bicarbonate soln places into constant temperature storage in 35 DEG C of environment in sealing container
10d is deposited, re-dry mixes with storage sludge afterwards；The wherein every kilogram consumption of straw dry ammonium hydrogen carbonate is 90g, sprays carbon
The water content of straw is 50%+2% after sour hydrogen ammonium salt solution.Other steps and parameter are identical with implementation method one, two or three.
Present embodiment can increase by 2~4 percentage points of dehydrating amount, accelerate dehydration, shorten 2 biological dewatered reaction week~
3 days.
Embodiment 1
Store the dehydration minimizing of sludge：
First, sludge will be stored and straw will press 8:Then 1 weight be transferred to biological dewatered reactor than uniform mixing；
2nd, biological dewatered reaction：Using the intermittent aeration ventilation in bottom, 30min is an aeration ventilation cycle, each week
10min is opened in phase, 20min is closed；Aeration rate of venting is per kilogram wet stock 1.2L/min；Every turning in 3 days once, reactor
Periphery completes the dehydration minimizing of storage sludge with 15cm thick polyester fiber plastic wraps, biological dewatered reaction 21 days；
Wherein, straw length is 10cm in step one.
The moisture content that sludge is stored in the present embodiment is 85%, pH value is 6.9, sample volatile solid content is 70%,
C/N is 4；Straw moisture content is 15%.
The present embodiment straw comes from Heilungkiang.
Embodiment 2
Store the dehydration minimizing of sludge：
First, sludge will be stored and straw will press 10:Then 1 weight be transferred to biological dewatered reactor than uniform mixing；
2nd, biological dewatered reaction：Using the intermittent aeration ventilation in bottom, 30min is an aeration ventilation cycle, each week
10min is opened in phase, 20min is closed；Aeration rate of venting is per kilogram wet stock 1.6L/min；Every turning in 3 days once, reactor
Periphery completes the dehydration minimizing of storage sludge with 15cm thick polyester fiber plastic wraps, biological dewatered reaction 21 days；
Wherein, straw length is 8cm in step one.
The moisture content that sludge is stored in the present embodiment is 85%, pH value is 6.9, sample volatile solid content is 70%,
C/N is 4；Straw moisture content is 15%.
The present embodiment straw comes from Zhejiang.
Embodiment 3
Store the dehydration minimizing of sludge：
First, sludge will be stored and straw will press 9:Then 1 weight be transferred to biological dewatered reactor than uniform mixing；
2nd, biological dewatered reaction：Using the intermittent aeration ventilation in bottom, 30min is an aeration ventilation cycle, each week
10min is opened in phase, 20min is closed；Aeration rate of venting is per kilogram wet stock 1.4L/min；Every turning in 3 days once, reactor
Periphery completes the dehydration minimizing of storage sludge with 15cm thick polyester fiber plastic wraps, biological dewatered reaction 21 days；
Wherein, straw length is 10cm in step one.
The moisture content that sludge is stored in the present embodiment is 85%, pH value is 6.9, sample volatile solid content is 70%,
C/N is 4；Straw moisture content is 15%.
The present embodiment straw comes from Sichuan.
Embodiment 4
Store the dehydration minimizing of sludge：
First, sludge will be stored and straw will press 3:Then 1 weight be transferred to biological dewatered reactor than uniform mixing；
2nd, biological dewatered reaction：Using the intermittent aeration ventilation in bottom, 15min is an aeration ventilation cycle, each week
10min is opened in phase, 5min is closed；Aeration ventilation is 100L/h；Every turning in 3 days once, reactor periphery is gathered with 15cm is thick
Ester fiber plastic wraps, biological dewatered reaction 21 days completes the dehydration minimizing of storage sludge；
Wherein, straw uniformly mixes with storage sludge after crushed in step one, and straw is 2~3cm of particle diameter.
The moisture content that sludge is stored in the present embodiment is 85%, pH value is 6.9, sample volatile solid content is 70%,
C/N is 4；Straw moisture content is 15%, and sample volatile solid content is 88%.
Embodiment 5
Store the dehydration minimizing of sludge：
First, sludge will be stored and straw will press 6:Then 1 weight be transferred to biological dewatered reactor than uniform mixing；
2nd, biological dewatered reaction：Using the intermittent aeration ventilation in bottom, 15min is an aeration ventilation cycle, each week
10min is opened in phase, 5min is closed；Aeration ventilation is 100L/h；Every turning in 3 days once, reactor periphery is gathered with 15cm is thick
Ester fiber plastic wraps, biological dewatered reaction 21 days completes the dehydration minimizing of storage sludge；
Wherein, straw uniformly mixes with storage sludge after crushed in step one, and straw is 2~3cm of particle diameter.
The moisture content that sludge is stored in the present embodiment is 85%, pH value is 6.9, sample volatile solid content is 70%,
C/N is 4；Straw moisture content is 15%, and sample volatile solid content is 88%.
Embodiment 5
Store the dehydration minimizing of sludge：
First, sludge will be stored and straw will press 6:Then 1 weight be transferred to biological dewatered reactor than uniform mixing；
2nd, biological dewatered reaction：Using the intermittent aeration ventilation in bottom, 15min is an aeration ventilation cycle, each week
10min is opened in phase, 5min is closed；Aeration ventilation is 100L/h；Every turning in 3 days once, reactor periphery is gathered with 15cm is thick
Ester fiber plastic wraps, biological dewatered reaction 21 days completes the dehydration minimizing of storage sludge；
Wherein, straw uniformly mixes with storage sludge after crushed in step one, and straw is 2~3cm of particle diameter.
The moisture content that sludge is stored in the present embodiment is 85%, pH value is 6.9, sample volatile solid content is 70%,
C/N is 4；Straw moisture content is 15%, and sample volatile solid content is 88%.
Embodiment 6
Store the dehydration minimizing of sludge：
First, sludge will be stored and maize straw will press 8:Then 1 weight be transferred to biological dewatered reactor than uniform mixing；
2nd, biological dewatered reaction：Using the intermittent aeration ventilation in bottom, 30min is an aeration ventilation cycle, each week
10min is opened in phase, 20min is closed；Aeration rate of venting is per kilogram wet stock 1.2L/min；Every turning in 3 days once, reactor
Periphery completes the dehydration minimizing of storage sludge with 15cm thick polyester fiber plastic wraps, biological dewatered reaction 21 days；
Wherein, maize straw is not crushed or sheared in step one.
The moisture content that sludge is stored in the present embodiment is 85%, pH value is 6.9, sample volatile solid content is 70%,
C/N is 4；Maize straw moisture content is 15%.
Embodiment 7
Store the dehydration minimizing of sludge：
First, sludge will be stored and wheat stalk will press 8:Then 1 weight be transferred to biological dewatered reactor than uniform mixing；
2nd, biological dewatered reaction：Using the intermittent aeration ventilation in bottom, 30min is an aeration ventilation cycle, each week
10min is opened in phase, 20min is closed；Aeration rate of venting is per kilogram wet stock 1.2L/min；Every turning in 3 days once, reactor
Periphery completes the dehydration minimizing of storage sludge with 15cm thick polyester fiber plastic wraps, biological dewatered reaction 21 days；
Wherein, wheat stalk is not crushed or sheared in step one.
The moisture content that sludge is stored in the present embodiment is 85%, pH value is 6.9, sample volatile solid content is 70%,
C/N is 4；Wheat stalk moisture content is 15%.
Sludge maximum temperature, the degradation rate of organic matter, storage sludge during minimizing is dehydrated are stored in embodiment 1-7
Minimum moisture content, and starting material moisture content is as shown in table 1 with final storage moisture percentage in sewage sludge.
Table 1
The inventive method (embodiment 1~3) can drop the moisture content of storing sludge material of the initial aqueous rate more than 75%
To less than 60%；And the maximum temperature of biological heap body reaches more than 55 DEG C, with the effect for significantly reducing storage sludge volume.
Change the straw in the inventive method into maize straw (embodiment 6) or wheat stalk (embodiment 7) biology heap body
Maximum temperature be no more than 30 DEG C, storage moisture percentage in sewage sludge reduction is less than 3%；Analysis speculate this with straw on it is distinctive micro-
Biological bacterium colony is relevant.
The moisture content of existing method (in embodiment 4 and 5) storage sludge material meets or exceeds 65%, the temperature of biological heap body
Not there is significant change then in degree and moisture content.
Claims (5)
1. it is a kind of store sludge dehydration quantitative reduction method, it is characterised in that storage sludge dehydration quantitative reduction method press following step
Suddenly carry out：
First, sludge will be stored and straw will press 8~10:Then 1 weight be transferred to biological dewatered reactor than uniform mixing；
2nd, biological dewatered reaction：Using the intermittent aeration ventilation in bottom, 30min is an aeration ventilation cycle, in each cycle
Open 10min, close 20min；Aeration rate of venting is 1.2~1.6L/min of per kilogram wet stock；Biological dewatered reaction 21 ± 2 days,
Complete the dehydration minimizing of storage sludge；
Wherein, straw length is 10 ± 2cm in step one.
2. it is according to claim 1 it is a kind of store sludge dehydration quantitative reduction method, it is characterised in that biological dewatered reaction
Device external application 15cm thick polyester fiber plastic wraps.
3. it is according to claim 1 it is a kind of store sludge dehydration quantitative reduction method, it is characterised in that the rice in step one
Careless moisture content is that 15%, sample volatile solid content is 88%.
4. it is according to claim 1 it is a kind of store sludge dehydration quantitative reduction method, it is characterised in that the rice in step one
Grass is prescinded to 10 ± 2cm, then surface sprinkling ammonium bicarbonate soln, places into sealing container storage at a constant temperature in 35 DEG C of environment
10d, afterwards re-dry with storage sludge mix.
5. a kind of dehydration quantitative reduction method for storing sludge according to claim 4, it is characterised in that every kilogram of straw is done
The consumption of material ammonium hydrogen carbonate is 90g, and the water content of straw is 50%+2% after sprinkling ammonium bicarbonate soln.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710020985.8A CN106746426A (en) | 2017-01-12 | 2017-01-12 | A kind of dehydration quantitative reduction method for storing sludge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710020985.8A CN106746426A (en) | 2017-01-12 | 2017-01-12 | A kind of dehydration quantitative reduction method for storing sludge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106746426A true CN106746426A (en) | 2017-05-31 |
Family
ID=58947736
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710020985.8A Pending CN106746426A (en) | 2017-01-12 | 2017-01-12 | A kind of dehydration quantitative reduction method for storing sludge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106746426A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114275988A (en) * | 2021-12-31 | 2022-04-05 | 北京农业职业学院 | Resource utilization method based on plant fiber agricultural wastes |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009126776A (en) * | 2007-11-26 | 2009-06-11 | Hiromichi Hara | Manufacturing method of fermented fertilizer and fermented fertilizer |
| CN102503068A (en) * | 2011-10-18 | 2012-06-20 | 广东省工程技术研究所 | Biological water reducing method for low-organic-content sludge |
| CN102887616A (en) * | 2011-07-22 | 2013-01-23 | 中国科学院城市环境研究所 | Low strength continuous aeration quick biological drying method |
| CN103467149A (en) * | 2013-09-17 | 2013-12-25 | 厦门绿标生物科技有限公司 | Method for processing sludge by using complex microbial agent |
-
2017
- 2017-01-12 CN CN201710020985.8A patent/CN106746426A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009126776A (en) * | 2007-11-26 | 2009-06-11 | Hiromichi Hara | Manufacturing method of fermented fertilizer and fermented fertilizer |
| CN102887616A (en) * | 2011-07-22 | 2013-01-23 | 中国科学院城市环境研究所 | Low strength continuous aeration quick biological drying method |
| CN102503068A (en) * | 2011-10-18 | 2012-06-20 | 广东省工程技术研究所 | Biological water reducing method for low-organic-content sludge |
| CN103467149A (en) * | 2013-09-17 | 2013-12-25 | 厦门绿标生物科技有限公司 | Method for processing sludge by using complex microbial agent |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114275988A (en) * | 2021-12-31 | 2022-04-05 | 北京农业职业学院 | Resource utilization method based on plant fiber agricultural wastes |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Zupančič et al. | Anaerobic treatment and biogas production from organic waste | |
| CN106495945B (en) | A kind of method that soil conditioner is quickly prepared using municipal sludge | |
| CN110451743B (en) | Method for recycling excess sludge of municipal sewage plant | |
| CN110217971A (en) | A kind of sludge base charcoal preparation method and application | |
| CN101913920A (en) | Composite conditioner for preparing sludge compost and application thereof | |
| CN104163553A (en) | Sludge treatment method | |
| CN101947534A (en) | Hydrolysis-aerobiosis two-section biological drying method for household garbage | |
| Temel | Evaluation of the influence of rice husk amendment on compost quality in the composting of sewage sludge | |
| CN103613418A (en) | Sludge aerobic composting method | |
| CN111011160A (en) | Nutrient soil for planting landscaping nursery stocks | |
| CN105367148A (en) | Efficient aerobic composting method of dehydrated sludge | |
| CN104496578A (en) | Technological process for improving saline land by using waterworks sludge composting fertilizer | |
| Kim et al. | Effect of organic compost manufactured with vegetable waste on nutrient supply and phytotoxicity | |
| CN206417986U (en) | A kind of high-temperature aerobic fermentation sludge treatment equipment | |
| Dong et al. | Manure treatment and recycling technologies | |
| CN101830626B (en) | High-efficiency full-closed sludge treatment system and method thereof | |
| CN106746426A (en) | A kind of dehydration quantitative reduction method for storing sludge | |
| CN105237051A (en) | Method for preparing organic fertilizer from sludge compost by taking beet pulp as conditioning agent | |
| US20060283220A1 (en) | System and process for high efficiency composting | |
| KR101183744B1 (en) | A method and apparatus for producing livestock manure wastewater discharge, rapid fermentation and liquid fertilization using livestock waste including livestock litter in a cylindrical or polygonal sealed fermenter with moisture control agent. | |
| CN105236668B (en) | A kind of biogas slurry pretreatment method of the biological deamination of magnesium monohydrogen phosphate auxiliary | |
| Purnomo et al. | Biogas production from oil palm empty fruit bunches of post mushroom cultivation media | |
| CN107151153A (en) | A kind of method that domestic sludge is made to compost | |
| CN115160081A (en) | Composting method suitable for low-temperature environment | |
| CN107903091A (en) | The pollution treatment of intermittent cyclic tank and the method for system fertilizer consumption organic solid waste pollutant |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170531 |
|
| RJ01 | Rejection of invention patent application after publication |