CN100444935C - Sewage biological desulphurizing device - Google Patents
Sewage biological desulphurizing device Download PDFInfo
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- CN100444935C CN100444935C CNB2007100672691A CN200710067269A CN100444935C CN 100444935 C CN100444935 C CN 100444935C CN B2007100672691 A CNB2007100672691 A CN B2007100672691A CN 200710067269 A CN200710067269 A CN 200710067269A CN 100444935 C CN100444935 C CN 100444935C
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- tower
- desulfurizing tower
- nozzle
- desulfurization device
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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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
- Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
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Abstract
The invention relates to a marsh gas biological desulphurization device. The technology issue it needs to resolve is to provide a resolve desulphurization device in manufacture and use, to overcome the disvantage that the oxygen content, temperature and humidity are non-controllable in the device. The marsh gas biological desulphurization device of the invention is a thionizer with a marsh inlet (1) and a marsh outlet (2), in which filling (3) is laid, and a nozzle (4) is mounted above the filling and connected to the feed tube (6) with a reflux pump (5), with the character in that the other nozzle of the said feed tube (6) lies at the nutrient solution segment at the lower of the thionizer; discharge port (7) is mounted on the bottom of the thionizer.
Description
Technical field
The present invention relates to a kind of gas componant isolation technics, specifically is a kind of methane bio-desulfurization device, is applicable to the desulfurization processing of the H 2 S-containing gas biogas or the rubbish landfill gas of generations such as the anaerobic digestion of livestock and poultry farm biogas engineering, industrial organic waste water processing.
Background technology
Usually contain hydrogen sulfide gas in the biogas that anaerobic digestion produces, its hydrogen sulfide content is usually between 1000ppm～3000ppm.Biogas desulfurization mode commonly used has chemical method and bioanalysis.The method that chemical desulfurization adopts dry oxidation iron to absorb is usually passed through desulfurizing agent bed, the H in the biogas with biogas at normal temperatures
2S contacts with activated ferric oxide, generates ironic sulfide, and the desulfurizing agent that contains sulfide then contacts with airborne oxygen, and when water existed, the sulfide of iron was converted into iron oxide and elemental sulfur again.This desulfurization regeneration process is capable of circulation carries out repeatedly, is covered by sulphur or other impurity and till losing activity until most of hole on ferric oxide desulfurizer surface.Chemical desulfurization need use desulfurizing agent, and when hydrogen sulfide in methane content was higher, desulfurizing agent was changed frequent, not only increases cost, and the comparison difficulty that operates.The desulfurizing agent of inactivation if improper conduct oneself well to put easily cause secondary pollution.
So-called biological desulphurization is exactly under suitable temperature, humidity, nutrient and little oxygen condition, and the metabolism by desulfurizing bacteria is with H
2S is converted into elemental sulfur.Course of reaction is:
H
2S+2O
2→H
2SO
4
2H
2S+O
2→2S+2H
2O
The exercising result of desulfurization microorganism species is with the H in the biogas
2S gas is converted into the effect that reaches biogas desulfurization behind elemental sulfur and the dilute sulfuric acid.At present, the subject matter of this desulfur technology existence is that process is difficult to conditions such as controlled humidity, oxygen content.In humidity control, existing biological desulphurization system adopts the mode of shower water more, and shower water is difficult to be evenly distributed, and little with the gas phase contact area.Because there is fluctuation in the biogas composition, therefore, the difficult control of air demand (being oxygen-supplying amount).
Chinese patent literature CN2710731Y discloses a kind of " bio-catalytical oxidation desulfurizer ".It is made up of two parts, and the one, the bio-packing apparatus of a band biogas import and methane outlet is placed some fillers in the device; The top of filler is provided with spray equipment, and spray equipment is communicated with the carrier pipe of band pump; Another is an activating apparatus, and here carrier pipe is accepted and carried spray liquid, and accepts agitating device and carry out aeration.Two devices can use separately, also can unite use.But this device has following deficiency: the one, split, this makes troubles for manufacturing and use; The 2nd, the oxygen content in the device, temperature and humidity all can not be controlled, and influence desulfurized effect.
Summary of the invention
The technical issues that need to address of the present invention are, overcome the deficiency that desulfurizer is divided into two bodies, and a kind of desulfurizer of making and using one is provided.
Another technical problem that the present invention need solve is to overcome all out of contior shortcoming of oxygen content in the device, temperature and humidity.
Methane bio-desulfurization device of the present invention, it is the desulfurizing tower of biogas import of a band and methane outlet, place the mesh-like filler in the desulfurizing tower, the top of filler is provided with nozzle, nozzle is communicated with the carrier pipe of band reflux pump, it is characterized in that another mouth of pipe of described carrier pipe is positioned at the nutrient solution section of desulfurizing tower bottom; Tower bottom is provided with floss hole.Establish the nutrient solution section in the desulfurizing tower bottom, promptly make device become organic one, made things convenient for and made and use.
Desulfurizing tower of the present invention has the temperature raising and maintaining layer outward, and tower is indoor temperature probe; There is air intlet in body of the tower portion, and tower is indoor oxygen measuring probe.If temperature raising and maintaining layer and temperature probe then can be measured and control the tower indoor temperature, temperature generally is controlled at 30 ± 5 ℃ in the tower.If air intlet and oxygen measuring probe then can be measured and control the tower indoor oxygen content, oxygen content generally is controlled at 1～1.5%.
The nozzle humidification of can having held concurrently, as preferably, desulfurization body of the tower portion is provided with humidifier.Humidifier can pressurize, atomize water, provides more fine environment with the growth and the activation of giving desulfurizing bacteria.
Air intlet and humidifier can be located on the desulfurizing tower wall independently of one another, as preferably, air intlet and humidifier are communicated with the biogas import, mix rapidly in the biogas inlet tube to guarantee the biogas and the air that enter the tower chamber, and make things convenient for the manufacturing of desulfurizing tower body of the tower.
The carrier pipe of band reflux pump can adopt reflux pump outside tower and the scheme of carrier pipe in tower, as preferably, the upper end of carrier pipe of band reflux pump is passed the desulfurizing tower wall and is communicated with, and its lower end is passed the desulfurizing tower wall and submerged in the nutrient solution of bottom, makes, installs and maintenance with convenient.
Beneficial effect of the present invention: the one, device is an one, has made things convenient for to make and use.The 2nd, safe and reliable, simple to operate, oxygen-supplying amount and humidity in the sweetening process are easy to control, and it is few to produce the biological sludge amount, non-secondary pollution.When hydrogen sulfide in methane content was 1000～3000ppm, desulfuration efficiency can reach more than 95%, and recyclable elemental sulfur, and operating cost reduces by 70% than chemical method.
Fig. 1 is the structural representation of desulfurizing tower of the present invention, wherein:
The import of 1-biogas, the 2-methane outlet, the 3-biologic packing material, 4-nutrient solution nozzle,
The 5-reflux pump, 6-communicating pipe, the 7-floss hole, 8-temperature raising and maintaining layer,
The 9-humidifier, the 10-air intlet.
Fig. 2 is the A-A cutaway view of Fig. 1, is the filler distribution schematic diagram.
Fig. 3 is the B-B cutaway view of Fig. 1, is biogas import, air intlet, humidifier schematic layout pattern.
The specific embodiment
The present invention is further described below in conjunction with drawings and Examples.
Embodiment 1.See Fig. 1, methane bio-desulfurization device of the present invention is the desulfurizing tower of a setting, and methane outlet 2, biogas import 1 and floss hole 7 are located at the top of tower, following waist and bottom respectively, and the biogas import forms the nutrient solution section below 1.(as commercially available mesh-like filler, its specific area can reach 250m to the biologic packing material 3 of the some high-ratio surfaces of placement in the desulfurizing tower
2/ m
3,, see Fig. 2 to increase biofilm biomass), the top of filler is provided with nutrient solution nozzle 4, and the upper end of the carrier pipe 6 of band reflux pump 5 is passed the desulfurizing tower wall and is communicated with nozzle 4, and its lower end is passed the desulfurizing tower wall and is submerged in the nutrient solution of bottom.Tower is indoor to have oxygen measuring probe to be connected with temperature measurer.Air intlet 10 and humidifier 9 (commercially available) are communicated with biogas import 1, see Fig. 3.Desulfurizing tower has temperature raising and maintaining layer 8 outward.
Five main system work process of the present invention and principle are as follows:
(1) biogas air inlet, hybrid system.Mainly comprise biogas import and export 1,2 and air intlet 10.By the biological desulphurization reaction equation as can be seen, desulphurization reaction needs certain amount of oxygen, can satisfy by the mode for air in desulfurizing tower 1.Biogas and air enter and enter desulfurizing tower after biogas import 1 evenly mixes rapidly, rise afterwards through biologic packing material 3, and under suitable humidity, temperature, nutrient and oxygen-supplying amount condition, microorganism is finished desulphurization reaction; Discharge by the methane outlet 2 that is located at cat head after the desulfurization.
(2) biologic packing material system.Biologic packing material 3 is located at desulfurizing tower 1 middle part, forms the intensive biological net of a stereochemical structure, can supply attached growth of microorganisms, forms desulfurizing bacteria biology " filter screen ".Nutritious nozzle for liquid 4 on it.Under suitable temperature, humidity and nutrient condition, microbial adhesion forms biological " filter screen " on biologic packing material.The nutrient solution of desulfurizing tower bottom nutrient solution section regularly is sprayed on the biologic packing material 3 as required by reflux pump 5, carrier pipe 6 and nutrient solution nozzle 4, for growth of microorganism provides nutrient, to improve desulfuration efficiency effectively.
(3) humidification system.Humidifier 9 is located at biogas import 1.Water through after humidifier 9 atomizing and biogas, air enter together and in tower, exist with the water smoke form, increased the contact area of water and gas phase greatly.
(4) temperature raising and maintaining system.The desulfurizing tower outside is provided with temperature raising and maintaining layer 8, and tower is indoor temperature probe, guarantees that temperature is at 30 ± 5 ℃ in the tower.
(5) oxygen system.Adopt oxygen measuring probe to the O in the biogas
2Monitor, control the air capacity (promptly controlling oxygen-supplying amount) that enters in the tower, guarantee that oxygen content arrives the biological desulphurization requirement in the tower, avoid the generation of too much sulfuric acid by the size of control air intlet 10.When oxygen-supplying amount is suitable, can generate elemental sulfur for reclaiming.
Claims (7)
1, a kind of methane bio-desulfurization device, it is the desulfurizing tower of biogas import (1) of a band and methane outlet (2), place some fillers (3) in the desulfurizing tower, the top of filler is provided with nozzle (4), nozzle (4) is communicated with the carrier pipe (6) of band reflux pump (5), it is characterized in that another mouth of pipe of described carrier pipe (6) is positioned at the nutrient solution section of desulfurizing tower bottom; Tower bottom is provided with floss hole (7); Described desulfurizing tower has temperature raising and maintaining layer (8) outward, and tower is indoor temperature probe; There is air intlet (10) in body of the tower portion, and tower is indoor oxygen measuring probe.
2, methane bio-desulfurization device according to claim 1 is characterized in that described desulfurization body of the tower portion is provided with humidifier (9).
3, methane bio-desulfurization device according to claim 1 and 2 is characterized in that described air intlet (10) and humidifier (9) are communicated with biogas import (1).
4, methane bio-desulfurization device according to claim 1 and 2, the upper end that it is characterized in that the carrier pipe (6) of described band reflux pump (5) is passed the desulfurizing tower wall and is communicated with nozzle (4), and its lower end is passed the desulfurizing tower wall and is submerged in the nutrient solution of bottom.
5, methane bio-desulfurization device according to claim 3, the upper end that it is characterized in that the carrier pipe (6) of described band reflux pump (5) is passed the desulfurizing tower wall and is communicated with nozzle (4), and its lower end is passed the desulfurizing tower wall and is submerged in the nutrient solution of bottom.
6, methane bio-desulfurization device according to claim 3 is characterized in that temperature is 30 ± 5 ℃ in the described desulfurizing tower, and the mist oxygen content is 1～1.5%.
7, methane bio-desulfurization device according to claim 4 is characterized in that temperature is 30 ± 5 ℃ in the described desulfurizing tower, and the mist oxygen content is 1～1.5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100672691A CN100444935C (en) | 2007-02-14 | 2007-02-14 | Sewage biological desulphurizing device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2007100672691A CN100444935C (en) | 2007-02-14 | 2007-02-14 | Sewage biological desulphurizing device |
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| CN101053765A CN101053765A (en) | 2007-10-17 |
| CN100444935C true CN100444935C (en) | 2008-12-24 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101760425B (en) * | 2010-02-05 | 2012-05-23 | 浙江大学 | Biogas production-desulfurization integrated device |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101732985B (en) * | 2010-01-29 | 2013-01-23 | 北京合力清源科技有限公司 | Methane-desulfurizing device |
| CN101935566B (en) * | 2010-09-17 | 2013-01-23 | 重庆大学 | Biological combined desulfurization method and device for natural gas |
| CN101984026B (en) * | 2010-11-09 | 2013-05-01 | 浙江大学 | Integrated methane biological desulphurization device |
| CN102358857A (en) * | 2011-09-15 | 2012-02-22 | 沈阳航空航天大学 | Biogas desulfurization apparatus of composting reactor |
| CN102433186A (en) * | 2011-11-02 | 2012-05-02 | 沈阳航空航天大学 | Micro-aerobic methane desulphurization device |
| CN103977703A (en) * | 2014-01-14 | 2014-08-13 | 上海治然环保设备工程有限公司 | Biogas biological desulfurization system |
| CN103980972A (en) * | 2014-06-08 | 2014-08-13 | 山东恒能环保能源设备有限公司 | Biological desulfurization device and process |
| CN105709592A (en) * | 2016-04-26 | 2016-06-29 | 杭州奥通环保科技股份有限公司 | Biochemical treatment device of low-concentration waste gas of viscose fibers and treatment method |
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| JP2000084351A (en) * | 1998-09-09 | 2000-03-28 | Toyo Eng Corp | Desulfurization of waste gas |
| CN2710731Y (en) * | 2004-07-13 | 2005-07-20 | 徐晓军 | Biological catalystic-oxidation equipment for removing sulphur |
| CN1724123A (en) * | 2004-10-21 | 2006-01-25 | 浙江工业大学 | A kind of biological oxidation processing method that contains nitric oxide production waste gas |
| CN1772352A (en) * | 2005-10-31 | 2006-05-17 | 南京大学 | Biological trickling filter bed for treating odorant pollutant in air |
| CN1864818A (en) * | 2006-04-14 | 2006-11-22 | 浙江工业大学 | A plate type biofiltration tower and waste gas treatment process thereof |
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2007
- 2007-02-14 CN CNB2007100672691A patent/CN100444935C/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000084351A (en) * | 1998-09-09 | 2000-03-28 | Toyo Eng Corp | Desulfurization of waste gas |
| CN2710731Y (en) * | 2004-07-13 | 2005-07-20 | 徐晓军 | Biological catalystic-oxidation equipment for removing sulphur |
| CN1724123A (en) * | 2004-10-21 | 2006-01-25 | 浙江工业大学 | A kind of biological oxidation processing method that contains nitric oxide production waste gas |
| CN1772352A (en) * | 2005-10-31 | 2006-05-17 | 南京大学 | Biological trickling filter bed for treating odorant pollutant in air |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101760425B (en) * | 2010-02-05 | 2012-05-23 | 浙江大学 | Biogas production-desulfurization integrated device |
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| CN101053765A (en) | 2007-10-17 |
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