CN1883770A - Toxic harmful exhaust gas treatment method and device therefor - Google Patents
Toxic harmful exhaust gas treatment method and device therefor Download PDFInfo
- Publication number
- CN1883770A CN1883770A CN 200610087420 CN200610087420A CN1883770A CN 1883770 A CN1883770 A CN 1883770A CN 200610087420 CN200610087420 CN 200610087420 CN 200610087420 A CN200610087420 A CN 200610087420A CN 1883770 A CN1883770 A CN 1883770A
- Authority
- CN
- China
- Prior art keywords
- exhaust gas
- tower
- harmful exhaust
- toxic harmful
- processor
- 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 invention discloses a treatment method for toxic harmful exhaust gas, comprising biological treatment and chemical treatment as accident emergency treatment, and also discloses corresponding treatment device. In the method, the toxic harmful exhaust gas is conveyed to treatment units with different aims after gas source blockage and pipe negative pressure gas collection by using treatment polyphyly of toxic harmful gas, processed to up to effluent standard and discharged into atmospheric environment.
Description
Technical field
The present invention relates to a kind ofly comprise the improvement of toxic harmful exhaust gas and the processing method of accident emergency, and corresponding processing means.
Background technology
Produce a large amount of toxic harmful exhaust gas when domestic city sewage treatment plant adopts biotechnology to carry out two stage treatment at present and in the industrial processes, these toxic harmful exhaust gas comprise: H
2Organic-inorganic toxic and harmfuls such as S, organic sulfur compound, benzene series thing show as breath malodor, have strong toxicity, to the crowd in the poison gas range of scatter is healthy serious harm are arranged.After these toxic and harmfuls are overflowed, can directly pollute plant area from device, go in the atmospheric environment, also can cause the further pollution of atmospheric environment and be discharged into; So toxic and harmful has become the second largest environomental pollution source after sewage.Along with the reinforcement of China's environmental improvement dynamics, the past does not cause that the improvement of the toxic and harmful of enough attention has become the environmental improvement problem demanding prompt solution.
Following table analysis China handle three kinds of major technique bioanalysises, the chemical method of toxic harmful exhaust gas, the comparison of absorption method:
| Title | Principle | Advantage | Shortcoming | |
| 1 | Bioanalysis | Utilization fixing organism on solid support matter is adsorbed decomposition gas | Construction costs is low, and operating cost is also lower | Debug time is long, is subjected to temperature, humidity effect big, and reaction speed is lower, and floor space is bigger |
| 2 | Chemical method | By chemical agent oxidation, decomposition, absorbing material | Chemical reaction velocity is fast, and floor space is little, and Treatment Stability is good | Need to consume a certain amount of chemical agent, cost height in the running |
| 3 | Absorption method | By the adsorbents adsorb material | Treatment Stability is good | Concentration of treatment is limited |
Summary of the invention
So technical problem to be solved by this invention is proposing a kind of toxic harmful exhaust gas treatment process, according to characteristics such as complexity, source of the gas skewness and the accident phase pollutant levels excursion of toxic and harmful composition be big, adopt chemical absorbing and high-performance bio tower-coupled (combination) technology, solve the disposal of daily discharging toxic and harmful processing and accident phase high-concentration waste gas.
Technical scheme provided by the present invention is: a kind of processing method of toxic harmful exhaust gas, and this method may further comprise the steps:
A. adopt negative pressure mode to collect toxic harmful exhaust gas, send into the ventilation trunk line;
B. in trunk line, be provided with the instrument and meter of exhaust gas concentration monitoring, set the upper limit of monitoring concentration, surpass at measured value and be somebody's turn to do in limited time, the lateral that is connected with trunk line is opened, waste gas is all guided in the chemical processor, and the waste gas after the processing is discharged in the trunk line again;
C. if measured value does not reach higher limit, waste gas is all introduced in the biological processor carried out a biological disposal upon;
D. the waste gas of handling well by discharge of pipes in atmosphere.
Wherein, waste gas enters from the bottom of chemical processor and biological processor, and by reverse process.
For realizing above-mentioned processing method, a kind for the treatment of apparatus of toxic harmful exhaust gas also is provided, include exhaust gas collector, ventilation shaft and biological processor, this device also includes chemical processor, this chemical processor includes caustic wash tower, pump and alkali-prepared tank, alkali-prepared tank is connected with the pump intake pipeline, and pump discharge links to each other with the alkali liquor inlet of caustic wash tower; This caustic wash tower is the buoyant raft tower, and alkali liquor inlet is arranged at its top, and the exhaust gas entrance that is connected with ventilation shaft is arranged at the bottom, waste gas and alkali lye reverse movement and processed, and waste gas outlet is arranged on the cat head, this outlet links to each other with ventilation shaft, also has waste liquid outlet at the bottom of the tower.
Further, described biological processor is the tower shape, is provided with spaced four layers of filler mutually in the tower, and bottom is the swash plate packing layer, and its excess-three layer is the floating filler layer; Above every layer, all be provided with spray head.
In order to handle waste gas better, can be several with tower shape biological processor, and be connected in series.
For more convenient control tower shape biological processor, in the tower shape biological processor of series connection, synchronous with the spray head work of layer top.
In order to prevent that the ventilation shaft exhaust outlet from freezing and dewfall when the low temperature, thereby influence exhaust emissions, ventilation shaft is provided with two in the different outlet in position straight up.
The present invention has following advantage: the diversity that adopts toxic and harmful to handle, seal source of the gas, pipe negative pressure gas collection, and be transported to processing unit and handle with different disposal purpose, last qualified discharge is in atmospheric environment.
Description of drawings
Describe the present invention in detail below in conjunction with accompanying drawing.
Fig. 1 is the structural representation of exhaust gas collector of the present invention;
Fig. 2 is the structural representation of biological processor of the present invention;
Fig. 3 is the structural representation and the connection layout of chemical processor of the present invention;
Fig. 4 is the exhaust outlet structure schematic diagram of ventilation shaft of the present invention.
Wherein: 1: fume trap cover 2: air channel 3: centrifugal blower 4: valve
5: valve 6: H2S detector table 7: main intake 8: the one-level biological tower
9: two stage biological tower 10: tube connector 11: main exhausting duct 12: floating stuffing layer
13: shower nozzle 14: exhaust outlet 15: spray is responsible for 16: magnetic valve
17: swash plate packing layer 18: air inlet 19: valve 20: inlet valve
22: main air duct 23: caustic wash tower 24: alkali-prepared tank 25: the alkali cleaning circulating pump
28: pollution discharge pond 29,30: blow-off pipe 31: sewage pump
32: ventilation shaft outlet 33: steam pipe 34: dew delivery pipe
The specific embodiment
A kind of processing method of toxic harmful exhaust gas, this method may further comprise the steps:
A. adopt negative pressure mode to collect toxic harmful exhaust gas, send into the ventilation trunk line;
B. in trunk line, be provided with the instrument and meter of exhaust gas concentration monitoring, set the upper limit of monitoring concentration, surpass at measured value and be somebody's turn to do in limited time, the lateral that is connected with trunk line is opened, waste gas is all guided in the chemical processor, and the waste gas after the processing is discharged in the trunk line again;
C. if measured value does not reach higher limit, waste gas is all introduced in the biological processor carried out a biological disposal upon;
D. the waste gas of handling well by discharge of pipes in atmosphere.
Wherein, waste gas enters from the bottom of chemical processor and biological processor, and by reverse process.
The treating apparatus of a kind of toxic harmful exhaust gas shown in Fig. 1,2 and 3, include exhaust gas collector, ventilation shaft and biological processor, this device also includes chemical processor, this chemical processor includes caustic wash tower 23, pump 25 and alkali-prepared tank 24, alkali-prepared tank 24 is connected with pump 25 inlet ducts, and pump discharge links to each other with the alkali liquor inlet of caustic wash tower 23; This caustic wash tower 23 is the buoyant raft tower, and alkali liquor inlet is arranged at its top, and the exhaust gas entrance that is connected with ventilation shaft is arranged at the bottom, waste gas and alkali lye reverse movement and processed, and waste gas outlet is arranged on the cat head, this outlet links to each other with ventilation shaft, also has waste liquid outlet at the bottom of the tower.
Biological processor is the tower shape, is provided with spaced four layers of filler mutually in the tower, and bottom is a swash plate packing layer 17, and its excess-three layer is a floating filler layer 12; Above every layer, all be provided with spray head.Tower shape biological processor is several, and is connected in series.
Negative pressure gas collection part mainly is made up of fume trap cover 1, air channel 2, centrifugal blower 3, and establishes valve 4, H2S detector table 6 at blower fan 3 inlets, and valve 5 is established in outlet makes fan condition be positioned at optimal working point with the regulating system air quantity.
And biological tower combination is arranged, carries out subsection-inlet, every section by one-level biological tower 8 and two stage biological tower 9 by tube connector 10 series connection, plurality of sections is connected in parallel between main intake 7 and the main exhausting duct 11.
When biological tower need spray, the magnetic valve 16 that spray is responsible on 15 was opened automatically, and water is sprayed onto on floating filler layer 12, the swash plate packing layer 17 from shower nozzle 13.
Chemical processor is the accident emergency device, and it is connected in parallel on blower fan and is exported on the preceding main air duct 22 of all biological towers, and main air duct 22 is established valve 19; Mainly form by caustic wash tower 23, inlet valve 20, alkali cleaning circulating pump 25, alkali-prepared tank 24.
When real work, under the draft of blower fan 3, near fume trap cover 1, form negative pressure region, each pollution sources toxic and harmful enters in the air channel, accepts the check of fans entrance place H2S detector table 6, and measuring instrument 6 is sent to master-control room to data signal, works as H
2S concentration＞800mg/m
3The time, master-control room starts the accident emergency system, promptly sending instruction starts NaOH solution circulating pump 25 and aspirates alkali lye get in the caustic wash tower 23 from alkali-prepared tank, meanwhile close the valve 19 on the main air duct 22, open caustic wash tower inlet valve 20, waste gas is introduced in the washing tower (for removing CO2) and the reverse neutralization of alkali lye of spray, then under the blower fan outlet pressure, enter in the main air duct 7, the beginning segmented enters the processing unit that one-level biological tower 8 and two stage biological tower 9 are composed in series, all enter at each elementary section gas in parallel from one-level biological tower 8 bottom air inlets 18, pass through fixed swash plate packing layer 17 successively, three layers of floating filler layer 12 are absorbed the back by the biodegradation oxidation and come out to enter the two stage biological tower 9 from top vent 14, waste gas is identical in stroke and the one-level biological tower 8 in two stage biological tower 9, enters into main exhaust duct at last and is discharged to outside atmosphere through exhaust tower; Wherein, in 9 series connection of one-level biological tower 8 and two stage biological tower, the spray head work of each layer top is carried out synchronously, and promptly fixed swash plate packing layer 17 spray simultaneously in two processors, and three layers of floating filler layer 12 spray separately simultaneously.
In the whole waste gas treatment process fulfillment process, the metabolite that biological tower produces and the blowdown of washing tower (for removing CO2) flow in the pollution discharge pond 28 by blow-off pipe 29,30 gravity that are arranged on tower bottom, are regularly risen in the plant area aeration tank by sewage pump 31 and go to prevent secondary pollution.
For preventing that ventilation shaft discharge tail gas dewfall from forming water smoke, even when low temperature, freeze and influence exhaust emissions efficient, except that on the exhaust chimney, doing the insulation processing, establish the dew tapping equipment in the chimney bottom, because gravity flows into, steam pipe 33 provides water vapour to dew from ventilation shaft outlet 32; Dew enters the municipal drainage pipeline by dew delivery pipe 34.
Claims (7)
1, a kind of processing method of toxic harmful exhaust gas, this method may further comprise the steps:
A. adopt negative pressure mode to collect toxic harmful exhaust gas, send into the ventilation trunk line;
B. in trunk line, be provided with the instrument and meter of exhaust gas concentration monitoring, set the upper limit of monitoring concentration, surpass at measured value and be somebody's turn to do in limited time, the lateral that is connected with trunk line is opened, waste gas is all guided in the chemical processor, and the waste gas after the processing is discharged in the trunk line again;
C. if measured value does not reach higher limit, waste gas is all introduced in the biological processor carried out a biological disposal upon;
D. the waste gas of handling well by discharge of pipes in atmosphere.
2, the processing method of toxic harmful exhaust gas according to claim 1 is characterized in that: waste gas enters from the bottom of chemical processor and biological processor, and by reverse process.
3, a kind for the treatment of apparatus of toxic harmful exhaust gas, include exhaust gas collector, ventilation shaft and biological processor, it is characterized in that: this device also includes chemical processor, this chemical processor includes caustic wash tower, pump and alkali-prepared tank, alkali-prepared tank is connected with the pump intake pipeline, and pump discharge links to each other with the alkali liquor inlet of caustic wash tower; This caustic wash tower is the buoyant raft tower, and alkali liquor inlet is arranged at its top, and the exhaust gas entrance that is connected with ventilation shaft is arranged at the bottom, waste gas and alkali lye reverse movement and processed, and waste gas outlet is arranged on the cat head, this outlet links to each other with ventilation shaft, also has waste liquid outlet at the bottom of the tower.
4, the treating apparatus of toxic harmful exhaust gas according to claim 3 is characterized in that: described biological processor is the tower shape, is provided with spaced four layers of filler mutually in the tower, and bottom is the swash plate packing layer, and its excess-three layer is the floating filler layer; Above every layer, all be provided with spray head.
5, the treating apparatus of toxic harmful exhaust gas according to claim 4 is characterized in that: tower shape biological processor is several, and is connected in series.
6, the treating apparatus of toxic harmful exhaust gas according to claim 5 is characterized in that: in the tower shape biological processor of series connection, synchronous with the spray head work of layer top.
7, according to the treating apparatus of claim 3,4,5 or 6 described toxic harmful exhaust gas, it is characterized in that: ventilation shaft is provided with two in the different outlet in position straight up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100874203A CN100355486C (en) | 2006-06-09 | 2006-06-09 | Toxic harmful exhaust gas treatment method and device therefor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100874203A CN100355486C (en) | 2006-06-09 | 2006-06-09 | Toxic harmful exhaust gas treatment method and device therefor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1883770A true CN1883770A (en) | 2006-12-27 |
| CN100355486C CN100355486C (en) | 2007-12-19 |
Family
ID=37582148
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100874203A Expired - Fee Related CN100355486C (en) | 2006-06-09 | 2006-06-09 | Toxic harmful exhaust gas treatment method and device therefor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100355486C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104888588A (en) * | 2015-06-29 | 2015-09-09 | 颜声林 | Exhaust gas treatment device with energy-saving and environment-friendly functions |
| CN106474909A (en) * | 2015-08-26 | 2017-03-08 | 江苏华正环保科技有限公司 | A kind of dry type phosphine fumigation exhaust gas purify technique |
| CN112999849A (en) * | 2021-02-26 | 2021-06-22 | 南通星球石墨股份有限公司 | Processing device for chlorine leakage accident |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1116093C (en) * | 2000-11-14 | 2003-07-30 | 同济大学 | Removing method for foul smell gas |
| CN2558443Y (en) * | 2002-03-18 | 2003-07-02 | 冯建成 | Washing-bio-filter bed filtering united deodorizing device |
-
2006
- 2006-06-09 CN CNB2006100874203A patent/CN100355486C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104888588A (en) * | 2015-06-29 | 2015-09-09 | 颜声林 | Exhaust gas treatment device with energy-saving and environment-friendly functions |
| CN106474909A (en) * | 2015-08-26 | 2017-03-08 | 江苏华正环保科技有限公司 | A kind of dry type phosphine fumigation exhaust gas purify technique |
| CN112999849A (en) * | 2021-02-26 | 2021-06-22 | 南通星球石墨股份有限公司 | Processing device for chlorine leakage accident |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100355486C (en) | 2007-12-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205340560U (en) | A biological automatically cleaned equipment for giving up smelly gas purification | |
| CN210522250U (en) | Layered biological deodorization system | |
| CN104147921A (en) | Device and method for processing gases with offensive odor by utilization of biofiltration-active carbon combination method | |
| CN100355486C (en) | Toxic harmful exhaust gas treatment method and device therefor | |
| CN103801191A (en) | Equipment for processing odor and organic pollutant by biological filtration | |
| CN1749660A (en) | Light and source catalytic air sterilizing and purifying device for ventilation system of central air conditioner | |
| CN210237158U (en) | Membrane covering deodorization system | |
| CN209735263U (en) | Waste gas and waste water combined treatment system | |
| CN109502669B (en) | Membrane covered deodorizing system | |
| CN109758889A (en) | A kind of liquor industry workshop VOCs waste gas processing method | |
| CN221155922U (en) | Composting field waste gas treatment system | |
| CN210964625U (en) | Biological stink waste gas treatment device | |
| CN205627618U (en) | Use a tower three mould integrated processing system s of bamboo charcoal for packing | |
| CN208959587U (en) | A kind of process hides exhaust gas processing device | |
| CN211585818U (en) | A high-efficient exhaust treatment device for laboratory | |
| CN213610678U (en) | Waste gas treatment system suitable for laboratory | |
| CN201454335U (en) | Wet air purification system | |
| CN116850770B (en) | Odor treatment device and method for livestock and poultry breeding biological filter | |
| CN205019895U (en) | Pouring -in low temperature plasma and new and effective exhaust -gas treatment equipment of washing integral type | |
| CN215610181U (en) | Waste gas treatment conveying device for environment-friendly equipment | |
| CN207951118U (en) | A kind of cross-current type biochemical tower | |
| CN207126355U (en) | A kind of air purifier | |
| CN205730625U (en) | Emission-control equipment | |
| CN219091618U (en) | High-sealing epoxy chloropropane waste gas recovery device | |
| CN216092908U (en) | Sludge drying granule environment-friendly tail gas treatment equipment |
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 | ||
| ASS | Succession or assignment of patent right |
Owner name: HARBIN HUIZHONG ENVIRONMENTAL PROTECTION TECHNOLOG Free format text: FORMER OWNER: HARBIN SANYUAN WATER INDUSTRY TECHNOLOGY DEVELOPMENT CO., LTD. Effective date: 20121231 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 150001 HARBIN, HEILONGJIANG PROVINCE TO: 150090 HARBIN, HEILONGJIANG PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20121231 Address after: 150090 room 2604, Pudong development building, 209 Changjiang Road, Nangang District, Heilongjiang, Harbin Patentee after: Harbin Huizhong Environmental Protection Technology Development Co., Ltd. Address before: Nangang District of Heilongjiang city in Harbin province 150001 Dashun Street No. 4 Patentee before: Harbin Sanyuan Water Industry Technology Development Co., Ltd. |
|
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071219 Termination date: 20160609 |