CN1314201A - Sludge desulfation method for fume - Google Patents
Sludge desulfation method for fume Download PDFInfo
- Publication number
- CN1314201A CN1314201A CN 00115007 CN00115007A CN1314201A CN 1314201 A CN1314201 A CN 1314201A CN 00115007 CN00115007 CN 00115007 CN 00115007 A CN00115007 A CN 00115007A CN 1314201 A CN1314201 A CN 1314201A
- Authority
- CN
- China
- Prior art keywords
- sludge
- flue gas
- tower
- reaction tower
- washing
- 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.)
- Granted
Links
Images
Landscapes
- Treating Waste Gases (AREA)
Abstract
The sludge desulfating process of fume includes the following steps: the water washing and cooling of fume in washing tower, the reaction of washed fume with biological sludge in reaction tower with the fume volume introducer every minute being 5-30 times that of the sludge; and the neutralization treatment of reacted biological slduge with lime or flyash. The present invention uses biological sludge containing sulfate, oxidizing bacteria and other thiobacillus to eliminate SO2 in fume, and has a desulfating rate up to 80%, low cost and simple process.
Description
The present invention is a kind of method of the flue gas utilization biological bacterium that Industrial Boiler produced being carried out the desulfurizing and purifying processing.
At present, kind surplus the fume desulphurization method of various countries' research has 100, the desulfurization of most employing chemical agent, its shortcoming is that the chemical consumption amount is bigger, equipment corrosion, quick abrasion, day-to-day operation expense and running maintenance expense height.Though the accidental report of research that utilizes biological bacterium that flue gas is carried out desulfurization, the case of succeeding in developing is few, it is reported, the Paques company of the U.S. has adopted such bioanalysis desulfur technology route: (1) introduces the washing of sluicing washer with flue gas; (2) sulphite with water-soluble sulfur dioxide and formation thereof is reduced into hydrogen sulfide with SRB; (3) hydrogen sulfide that produces is become elementary sulfur with the oxide sulfate bacterial oxidation, flow process is comparatively complicated, the difficult control of operating process.
The sludge desulfation method that the purpose of this invention is to provide a kind of flue gas utilizes the oxidation of the oxide sulfate bacterium that contains in the biological sludge and other Thiobacillus to slough sulphur in the flue gas.
Technical method of the present invention is: a kind of sludge desulfation method of flue gas is characterized in that comprising the following step:
(1) flue gas is fed scrubbing tower washing, cooling, the flue gas after the washing enters next step, and the water after the washing discharges after with the lime neutralisation treatment;
(2) flue gas after will washing feeds reaction tower, biological sludge is housed in the reaction tower, discharge from reaction tower flue gas and biological sludge reaction back, this biological sludge is any in the handled thing of the liquid sludge that produces of municipal sewage plant and human and animal excreta, biogas pond slag, river and bottom mud in lake or two or more the mixture in them, and the ratio of the volume of biological sludge is that 5-30 is than 1 in the flue gas volume that per minute feeds and the reaction tower;
(3) will react the biological sludge that lost efficacy the back and discharge reaction tower, add lime or flyash neutralisation treatment.
Main points of the present invention are to utilize biological sludge to make sulfur in smoke dissolving, be detained and generated sulfuric acid by the oxide sulfate bacterium in the biological sludge and the institute's oxidation of other Thiobacillus, be to improve treatment effect, add the acclimation sludge of 1-10% (volume ratio) in can the biological sludge in reaction tower.
After flue gas is discharged by reaction tower, preferably again flue gas is introduced washing deodorization tower, after deodorization, discharged.
Be further described below in conjunction with embodiments of the invention and accompanying drawing thereof.
Accompanying drawing is the process chart of the embodiment of the invention.
See shown in the accompanying drawing, a kind of sludge desulfation method of flue gas, the steps include: that (1) is with power plant, material filling type scrubbing tower (tower 1) is drawn and fed to the flue gas that Industrial Boiler produces with resistant to elevated temperatures air-introduced machine 1 in smoke duster rear end or chimney, water filling is washed in tower simultaneously, cooling, in the material filling type scrubbing tower (tower 1) is common structure, be provided with splash board 3, porous aggregate 4 and hand hole 5, flue gas after the washing enters next step from flue 2, water after the washing is discharged from outlet pipe 6, with discharging after the lime neutralisation treatment, this material filling type scrubbing tower (tower 1) can replace to board-like or the aeration type scrubbing tower; (2) flue gas after will washing is with air compressor machine 7 pressurizations, the lifting device 9 that exposes to the sun by reaction tower (tower 2) enters reaction tower (tower 2), be filled with liquid biological sludge 8 in the reaction tower (tower 2), this biological sludge 8 is any in the handled thing of the liquid sludge that produces of municipal sewage plant and human and animal excreta, biogas pond slag, river and bottom mud in lake, or two or more the mixture in them; For improving treatment effect, the acclimation sludge that can in the biological sludge in the reaction tower (tower 2), add 1-10% (volume ratio), contain oxide sulfate bacterium and other Thiobacillus in these mud, sulfur in smoke forms sulfuric acid through the oxidation of dissolving, delay and oxide sulfate bacterium wherein and other Thiobacillus of biological sludge 8, thus sulfur in smoke is transformed; In the flue gas volume that per minute feeds reaction tower (tower 2) and the reaction tower (tower 2) ratio (hereinafter to be referred as gas mud volume ratio) of biological sludge volume for 5-30 than 1, specifically the exhaust gas volumn of feeding is decided on the concentration of sulfur dioxide in flue gas; Discharge from reaction tower (tower 2) flue gas and biological sludge 8 reaction backs, can directly arrange to atmosphere, also can flue gas be introduced washing deodorization tower (tower 3) again, discharges after deodorization, and deodorization tower (tower 3) is identical with the structure of scrubbing tower (tower 1); (3) after after a while, the biological sludge 8 in the reaction tower (tower 2) lost efficacy gradually, and the biological sludge 8 that lost efficacy from discharge orifice 10 discharge reaction towers (tower 2), is added lime or flyash neutralisation treatment, gave landfill at last.
Good effect of the present invention is embodied in: above-mentioned various types of biological sludges are the refuse that should abandon originally, but it contains oxide sulfate bacterium and other Thiobacillus, the present invention utilizes this point to remove sulfur in smoke exactly, compare with other sulfur method, operating cost is low, flow process is simple, easy to operate, desulfuration efficiency can reach more than 80%.
Enumerating the experimental record data is below illustrated
Experiment one
Employing Shanghai Cao Yang sewage treatment plant solid content is 1.8% liquid sludge, behind the acclimation sludge of adding 10% (volume ratio), at air inlet sulfur dioxide concentration 13200mg/m
3The time, gas mud volume ratio is 15: 1, desulfurization degree reaches 88.0%; When at air inlet sulfur dioxide concentration 793mg/m
3The time, gas mud volume ratio is 15: 1, desulfurization degree reaches 97.0%; When at air inlet sulfur dioxide concentration 721mg/m
3The time, gas mud volume ratio is 20: 1, desulfurization degree reaches 97.3%.
Experiment two
Employing Shanghai Cao Yang sewage treatment plant solid content is 1.8% liquid sludge, adds the acclimation sludge of 1% (volume ratio), at air inlet sulfur dioxide concentration 2470mg/m
3The time, to handle by method of the present invention, gas mud volume ratio is 15: 1, desulfurization degree reaches 94.3%; When at air inlet sulfur dioxide concentration 470-850mg/m
3The time, gas mud volume ratio is 15: 1, sulfur dioxide in flue gas content after treatment is lower than 60mg/m
3
Experiment three
Adopt the natural pond slag of methane-generating pit solid content 2.3%, at air inlet sulfur dioxide concentration 2510mg/m
3The time, to handle by method of the present invention, gas mud volume ratio is 10: 1, desulfurization degree reaches 89.3%.
Claims (3)
1, a kind of sludge desulfation method of flue gas is characterized in that comprising the following step:
(1) flue gas is fed scrubbing tower washing, cooling, the flue gas after the washing enters next step, and the water after the washing discharges after with the lime neutralisation treatment;
(2) flue gas after will washing feeds reaction tower, biological sludge is housed in the reaction tower, discharge from reaction tower flue gas and biological sludge reaction back, this biological sludge is any in the handled thing of the liquid sludge that produces of municipal sewage plant and human and animal excreta, biogas pond slag, river and bottom mud in lake or two or more the mixture in them, and the ratio of the volume of biological sludge is that 5-30 is than 1 in the flue gas volume that per minute feeds and the reaction tower;
(3) will react the biological sludge that lost efficacy the back and discharge reaction tower, add lime or flyash neutralisation treatment.
2, the sludge desulfation method of flue gas according to claim 1 is characterized in that, adds the acclimation sludge of 1-10% (volume ratio) in the biological sludge in reaction tower.
3, the sludge desulfation method of flue gas according to claim 1 is characterized in that, after flue gas is discharged by reaction tower, flue gas is introduced washing deodorization tower again, discharges after deodorization.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001150073A CN1163297C (en) | 2000-03-21 | 2000-03-21 | Sludge desulfation method for fume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB001150073A CN1163297C (en) | 2000-03-21 | 2000-03-21 | Sludge desulfation method for fume |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1314201A true CN1314201A (en) | 2001-09-26 |
| CN1163297C CN1163297C (en) | 2004-08-25 |
Family
ID=4584478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB001150073A Expired - Fee Related CN1163297C (en) | 2000-03-21 | 2000-03-21 | Sludge desulfation method for fume |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1163297C (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320946C (en) * | 2004-06-29 | 2007-06-13 | 陶国龙 | Acid solution spray dry-process flue gas desulfurization and modulating intensification method |
| CN1331819C (en) * | 2006-07-06 | 2007-08-15 | 上海交通大学 | Process for manufacturing granular complex fertilizer from sludge and fly-ash by blending, granulation, and gas purification |
| CN100434402C (en) * | 2007-03-08 | 2008-11-19 | 上海交通大学 | Method for treating sulfur-heavy metal containing waste gas with by-product of compound fertilizer by humic acid |
| CN101837231A (en) * | 2010-04-23 | 2010-09-22 | 北京工业大学 | Sludge-based desulfurizer and preparation method thereof |
| CN101921080A (en) * | 2010-08-12 | 2010-12-22 | 山东东佳集团股份有限公司 | Method for utilizing sludge generated by adopting carbide slag or quick lime to process titanium dioxide wastewater |
| CN105921002A (en) * | 2016-05-31 | 2016-09-07 | 武汉钢铁股份有限公司 | Semi-dry desulfurization process calcium-based desulfurizing agent and preparation method thereof |
| CN110423059A (en) * | 2019-08-30 | 2019-11-08 | 郑州恒博环境科技股份有限公司 | A kind of thermal insulation material containing desulfurization sludge and its preparation |
-
2000
- 2000-03-21 CN CNB001150073A patent/CN1163297C/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1320946C (en) * | 2004-06-29 | 2007-06-13 | 陶国龙 | Acid solution spray dry-process flue gas desulfurization and modulating intensification method |
| CN1331819C (en) * | 2006-07-06 | 2007-08-15 | 上海交通大学 | Process for manufacturing granular complex fertilizer from sludge and fly-ash by blending, granulation, and gas purification |
| CN100434402C (en) * | 2007-03-08 | 2008-11-19 | 上海交通大学 | Method for treating sulfur-heavy metal containing waste gas with by-product of compound fertilizer by humic acid |
| CN101837231A (en) * | 2010-04-23 | 2010-09-22 | 北京工业大学 | Sludge-based desulfurizer and preparation method thereof |
| CN101921080A (en) * | 2010-08-12 | 2010-12-22 | 山东东佳集团股份有限公司 | Method for utilizing sludge generated by adopting carbide slag or quick lime to process titanium dioxide wastewater |
| CN105921002A (en) * | 2016-05-31 | 2016-09-07 | 武汉钢铁股份有限公司 | Semi-dry desulfurization process calcium-based desulfurizing agent and preparation method thereof |
| CN110423059A (en) * | 2019-08-30 | 2019-11-08 | 郑州恒博环境科技股份有限公司 | A kind of thermal insulation material containing desulfurization sludge and its preparation |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1163297C (en) | 2004-08-25 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| AU691097B2 (en) | Process for the treatment of gases | |
| CN101352647B (en) | Simultaneous desulfuration and denitration technique by wet flue gas method | |
| CN100393395C (en) | Desulfurization denitration dust collecting integral purifier for coal burning boiler fume gas | |
| CN100417431C (en) | Combined liquid phase catalytic oxidizing and microbial method for simultaneously removing SO2 and nitrogen oxide in smoke | |
| EP0808210A1 (en) | Process for purifying flue gas containing nitrogen oxides | |
| CN106731560B (en) | A kind of house refuse cooperates with power generation by waste combustion waste gas purification minimum discharge system with sludge | |
| CN1215897C (en) | Method ofr desulfurization of waste gas and coking waste water treatment and its equipment | |
| CN1736557A (en) | Waste gas control method by removing sulfur dioxide for resource utilization | |
| CN1045173C (en) | Aeration sea water type technology for removing sulphur from smoke and aeration device | |
| CN1163297C (en) | Sludge desulfation method for fume | |
| CN1194176A (en) | New technology for absorbing and eliminating sulfur dioxide in smoke chemically | |
| CN201832543U (en) | Dry type deodorizing and purifying device for waste gas of oxidization rubber mixing | |
| CN2710731Y (en) | Biological catalystic-oxidation equipment for removing sulphur | |
| CN102039078A (en) | Method for treating multi-component foul waste gas | |
| CN101327395A (en) | Sequencing batch limestone slurry wet desulfurization technique | |
| CN101653691A (en) | Mixed solution for simultaneously desulfurizing and denitrating and application method thereof | |
| EP1107819B1 (en) | Method for cleaning a waste gas | |
| CN101143293B (en) | Method for deodorant waste lye for absorbing treating smoke | |
| JPH0839090A (en) | Desulfurization equipment of anaerobic biological reaction gas | |
| JP2002079051A (en) | Method for deodorizing hydrogen sulfide containing gas | |
| CN101670223A (en) | Method and device for desulfurizing flue gas | |
| CN214131057U (en) | Thermophilic biological trickling filtration gas-liquid two-phase device for removing heavy metals in smoke | |
| CN213761216U (en) | High-efficient dry process desulphurization unit of glass kiln flue gas | |
| JP3413856B2 (en) | Method and apparatus for simultaneous treatment of digestive gas and odorous gas | |
| CN1108180C (en) | Process and system for desulfurizing fume by two-stage liquid column spray |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |