CN101036854A - Low-rising type waste air absorbing device and the method for generating H*S air during the sewerage process - Google Patents
Low-rising type waste air absorbing device and the method for generating H*S air during the sewerage process Download PDFInfo
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- CN101036854A CN101036854A CN 200710071712 CN200710071712A CN101036854A CN 101036854 A CN101036854 A CN 101036854A CN 200710071712 CN200710071712 CN 200710071712 CN 200710071712 A CN200710071712 A CN 200710071712A CN 101036854 A CN101036854 A CN 101036854A
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Abstract
An upward-flow type waste gas absorption device and a process for treating H2S gas from sewage treatment are provided, which belongs to a waste gas absorption device and process thereof in sewage treatment. The upper end of a drum (1) is securely connected with the bottom of a gas outlet pipe (3) with a rain-proof cap, a spray device (5) is arranged on the upper part inside the drum (1), the liquid inlet port of the spray device (5) communicates with the liquid outlet port of a alkaline-liquor-feeding tube (4) via a flange (6), a filling layer (8) is arranged inside the drum (1), and under the filling layer (8) is arranged a support plate (9) with a through hole, which is securely connected to the inside part of the drum (1). In the invention, H2S gas from sewage treatment is neutralized and absorbed by using alkaline liquor. The invention has the advantages of high efficiency, low running cost, safety, simple process, and convenient operation.
Description
Technical field
The present invention relates to exhaust gas absorption device and processing method thereof in a kind of sewage disposal.
Background technology
Along with the attention of people to the exhaust emission problem, various improvement methods are also arisen at the historic moment.In the prior art, waste gas in the sewage disposal is absorbed processing method mainly contain firing method, oxidizing process, absorption process, absorption method, bioanalysis etc. at home.These methods have his own strong points, and limitation is also all arranged.Firing method is to utilize to contain the character that some flammable gas can be burned in the waste gas.Can utilize they are mixed with air, the combustible component needed oxygen that burns is provided, mix the high temperature that has the possessed processing of burning again, make it be converted into harmless material.But do not have flammable gas for some, then do not have treatment effect.Absorption method is with waste gas during by porous solid absorbent (mostly being active carbon), wherein pernicious gas is adsorbed, adsorb saturated back desorption and regeneration, the then renewable repeated use adsorption method for purifying of adsorbent efficient is very high, most pernicious gases all can utilize adsorption method for purifying, especially to low concentration unwanted gas cleaning degree height, meet the water back knot plate easily that makes moist but the problem that absorption method exists is an adsorbent (as active carbon), specific area reduces greatly, thereby has influence on treatment effect.The biological deodorizing technology is that odorous substance is earlier soluble in water, again with bio-absorbable, be decomposed into a kind of odor treatment method of odorless material.Its advantage is not need medicine, do not need more conversion materials, and the carrier filler is convenient to management by bioactivation, and particularly it has small investment, the characteristics that operating cost is low.But anti-shock loading is relatively poor, and treatment effect head is than multifactor impact, instability.The active oxygen method is that high pressure pulse discharge is ionized into ozone, elemental oxygen, hydroxyl radical free radical isoreactivity oxygen with oxygen molecule in the air at normal temperatures and pressures, ion-oxygen in the active oxygen has extremely strong oxidability, its oxidability is thousands of times of oxygen, can be with pollutants such as ammonia, hydrogen sulfide, mercaptan, and the rapid oxidation of other organic matter of stench peculiar smell, the oxidation required time is only at percent second.This method ideal treatment effect can effectively be removed specific pollutants and other stinks such as hydrogen sulfide, ammonia, mercaptan, but it is low to be suitable for concentration of treatment, broad-minded waste gas, and processing cost is higher, and operation is complicated.In recent years a kind of oxidizing process of Chu Xianing is to utilize acidic iron salt solutions oxidation processes hydrogen sulfide gas, feeds the bottom, absorption tower with soluble ferric iron salt (as iron chloride, ferric sulfate, ferric nitrate etc.) gaseous mixture by pipeline and enters with the form of bubble and moltenly do that absorbent has with this technology of stink damp precursor reactant that reaction speed is fast, side reaction is few, sulfur recovery rate is high in the aqueous solution and characteristics such as recovery catalyst low price.Another kind method is to utilize hydrogen sulfide waste gas and the milk of lime effect that generates in the sewage treatment project, generates calcium sulfhydrate and generates thiocarbamide with the nitrolim effect again, have comparatively objectively environmental benefit, but the chemicals cost that uses in the processing procedure is higher.Domestic quantity of wastewater effluent increases day by day at present, the processing of the direct exhaust emission atmosphere of the waste gas that produces in the processing procedure causes that day by day people pay attention to, for improving the efficient that absorbs the waste gas that produces in the processing procedure of disposing of sewage, and operation is simple, floor space is little, operating cost is low, and the absorption processing method that treatment effect is good yet there are no report.
Summary of the invention
The objective of the invention is in order to solve in the existing exhaust gas treatment technology exhaust-gas treatment not exclusively, processing cost is higher, and treatment effect is good inadequately, increases secondary pollution problem, the up-flow exhaust gas absorption device is provided and has absorbed in the sewage disposal to produce H
2The method of S gas.The present invention utilize in the alkali lye and sewage disposal in the hydrogen sulfide gas that produces, make the hydrogen sulfide body be dissolved in alkali lye, and then reach the processing method that the waste gas that produces in the sewage disposal is absorbed.The material of device of the present invention is fiberglass or plastic material, highly is 5～15m; It is made up of the escape pipe 3 of cylindrical shell 1, band rainhat 2, the alkali liquor pipe 11 that goes out that advances alkali liquor pipe 4, spray equipment 5, flange 6, manhole 7, packing layer 8, the gripper shoe 9 that has through hole, air inlet pipe 10 and air-introduced machine 12 is housed; Fixedly connected with the bottom of the escape pipe 3 of band rainhat 2 in the upper end of cylindrical shell 1, spray equipment 5 is equipped with on top in the cylindrical shell 1, the inlet of spray equipment 5 is communicated with by flange 6 with the liquid outlet that advances alkali liquor pipe 4, packing layer 8 is housed in the cylindrical shell 1, the following of packing layer 8 is the gripper shoe 9 that has through hole, the gripper shoe 9 that has through hole is connected with the internal fixation of cylindrical shell 1, fixedly connected with the outer wall of cylindrical shell 1 in the upper end that manhole 7 is positioned at packing layer 8, the air inlet of air inlet pipe 10 is communicated with the bottom of cylindrical shell 1, and the inlet that goes out alkali liquor pipe 11 that air-introduced machine 12 is housed is communicated with the liquid outlet of cylindrical shell 1.
The step of the inventive method is as follows: alkali lye sprays downwards through spray equipment 5 inflow cylindrical shells 1 by advancing alkali liquor pipe 4; Then under the effect of air-introduced machine 12, the waste gas that produces in the sewage disposal process enters motion from bottom to top in the cylindrical shell 1 by air inlet pipe 2, alkali lye and waste gas form the air water adverse current, hydrogen sulfide gas is dissolved in the alkali lye and the alkali lye neutralization reaction in packing layer 8 waste gas, residue alkali lye flows out exhaust gas absorption device by going out alkali lye mouth 11, and the gas of the above-mentioned processing of process enters atmosphere by gas outlet 3.
The technical solution adopted for the present invention to solve the technical problems is that the design principle of up-flow waste gas absorption process is to utilize hydrogen sulfide gas and alkali lye to generate sulfide, obtains neutralization, thereby makes waste gas obtain handling.Reaction equation is as follows:
H
2S+2NaOH＝Na
2S+2H
2O
H
2S+NaOH＝NaHS+H
2O
Chemical absorption method technology is simple, technology maturation, and floor space is little, and in the following quite a long period, it will be the main flow of stench control technology, particularly at the transformation of old factory with there is the circumscribed stench that removes of newly founding the factory in soil to have more advantage.
The invention has the beneficial effects as follows up-flow waste gas absorption process be utilize waste gas in the absorption tower by the air-introduced machine effect, enter rising from below, spray from top with alkali lye, hydrogen sulfide is dissolved in the alkali lye, in alkali lye neutralization, waste gas obtains processing method.Waste gas absorption tower adopts corrosion resistant fiberglass or plastic material to make, and can batch production produce in batches, and on-the-spot easy for installation, cost is low, and is effective.
The present invention has the treatment effeciency height, and operating cost is low, safety, the advantage that technology is simple, easy to operate.
Description of drawings
Fig. 1 is a front view of the present invention, and Fig. 2 is a cutaway view of the present invention, and Fig. 3 is the A-A profile of Fig. 1, and Fig. 4 is the B-B profile of Fig. 1, and Fig. 5 is the angle schematic diagram of the fluid hole 5-1 of shower 5-2, and Fig. 6 is that the A of Fig. 5 is to schematic diagram.
The specific embodiment
The specific embodiment one: (material referring to up-flow exhaust gas absorption device in the present embodiment of Fig. 1～Fig. 4) is fiberglass or plastic material, highly is 5～15m; It is made up of the escape pipe 3 of cylindrical shell 1, band rainhat 2, the alkali liquor pipe 11 that goes out that advances alkali liquor pipe 4, spray equipment 5, flange 6, manhole 7, packing layer 8, the gripper shoe 9 that has through hole, air inlet pipe 10 and air-introduced machine 12 is housed; Fixedly connected with the bottom of the escape pipe 3 of band rainhat 2 in the upper end of cylindrical shell 1, spray equipment 5 is equipped with on top in the cylindrical shell 1, the inlet of spray equipment 5 is communicated with by flange 6 with the liquid outlet that advances alkali liquor pipe 4, packing layer 8 is housed in the cylindrical shell 1, the following of packing layer 8 is the gripper shoe 9 that has through hole, the gripper shoe 9 that has through hole is connected with the internal fixation of cylindrical shell 1, fixedly connected with the outer wall of cylindrical shell 1 in the upper end that manhole 7 is positioned at packing layer 8, the air inlet of air inlet pipe 10 is communicated with the bottom of cylindrical shell 1, and the inlet that goes out alkali liquor pipe 11 that air-introduced machine 12 is housed is communicated with the liquid outlet of cylindrical shell 1.
The specific embodiment two: the height of the up-flow exhaust gas absorption device of present embodiment is 8m.Other is identical with concrete mode one.
The specific embodiment three: the height of the up-flow exhaust gas absorption device of present embodiment is 10m.Other is identical with the specific embodiment one.
The specific embodiment two: spray equipment 5 is made up of shower 5-2 and tube connector 5-3 in (referring to Fig. 2, Fig. 3 and Fig. 5) present embodiment; Spray equipment 5 is equipped with two to ten couples of shower 5-2, every couple of shower 5-2 is with tube connector 5-3 central shaft symmetric arrays tube connector 5-3 both sides, the import of shower 5-2 is communicated with the drain pipe of tube connector 5-3, the inlet of tube connector 5-3 is communicated with the liquid outlet that advances alkali liquor pipe 4, and shower 5-2 goes up the central shaft both sides and has fluid hole 5-1.Other is identical with the specific embodiment one.
The specific embodiment three: the angle α with shower 5-2 section vertical axis of fluid hole 5-1 is 0～75 ° in (referring to Fig. 5 and Fig. 6) present embodiment, and fluid hole 5-1 diameter is 3～8mm.Other is identical with the specific embodiment two.
Present embodiment guarantees that alkali lye evenly sprays downwards, helps the stable of assimilation effect.Other is identical with the specific embodiment two.
The specific embodiment four: the α of the fluid hole 5-1 in the present embodiment is 30～60 °.Other is identical with the specific embodiment two.
The specific embodiment five: the α of the fluid hole 5-1 in the present embodiment is 45 °.Other is identical with the specific embodiment two.
α angle the best in the present embodiment.
The specific embodiment six: the diameter of fluid hole 5-1 is 5～7mm in the present embodiment.Other is identical with the specific embodiment two.
The specific embodiment seven: the diameter of fluid hole 5-1 is 6mm in the present embodiment.Other is identical with the specific embodiment two.
The specific embodiment eight: two to ten layers of packing layer 8 are housed in the present embodiment middle cylinder body 1, and the filler of packing layer 8 is surperficial corrosion resistant filler, and packed height is 0.2～3m, and the diameter of filler is 25～50mm.Other is identical with the specific embodiment one.
The specific embodiment nine: surperficial corrosion resistant filler is porous plastics Ball-type packing or porous plastics polyhedron filler in the present embodiment.Other is identical with the specific embodiment eight.
The specific embodiment ten: three layers of packing layer 8 are housed in the present embodiment middle cylinder body 1.Other is identical with the specific embodiment eight.
The specific embodiment 11: five layers of packing layer 8 are housed in the present embodiment middle cylinder body 1.Other is identical with the specific embodiment eight.
The specific embodiment 12: the height of filler is 1m in the present embodiment.Other is identical with the specific embodiment eight.
The specific embodiment 13: the height of filler is 2m in the present embodiment.Other is identical with the specific embodiment eight.
The specific embodiment 14: the diameter of filler is 26mm in the present embodiment.Other is identical with the specific embodiment eight.
The specific embodiment 15: the diameter of filler is 32mm in the present embodiment.Other is identical with the specific embodiment eight.
The specific embodiment 16: the shape of through holes in the present embodiment on the gripper shoe 9 is square, circular, trapezoidal, quincunx or triangle.Other is identical with the specific embodiment one.
The specific embodiment 17: the shape of through holes in the present embodiment on the gripper shoe 9 is quincunx, aperture 10mm, 35mm at interval.Other is identical with the specific embodiment one.
The specific embodiment 18: the step of present embodiment method is as follows: alkali lye sprays downwards through spray equipment 5 inflow cylindrical shells 1 by advancing alkali liquor pipe 4; Then under the effect of air-introduced machine 12, the waste gas that produces in the sewage disposal process enters motion from bottom to top in the cylindrical shell 1 by air inlet pipe 2, alkali lye and waste gas form the air water adverse current, hydrogen sulfide gas is dissolved in the alkali lye and the alkali lye neutralization reaction in packing layer 8 waste gas, residue alkali lye flows out exhaust gas absorption device by going out alkali lye mouth 11, and the gas of the above-mentioned processing of process enters atmosphere by gas outlet 3.
The specific embodiment 19: the alkali lye of present embodiment is NaOH.Other is identical with the specific embodiment 18.
The clearance of waste gas of the present invention reaches more than 95%.
Claims (10)
1, a kind of material of up-flow exhaust gas absorption device is fiberglass or plastic material, highly is 5～15m; It is made up of the escape pipe (3) of cylindrical shell (1), band rainhat (2), the alkali liquor pipe (11) that goes out that advances alkali liquor pipe (4), spray equipment (5), flange (6), manhole (7), packing layer (8), the gripper shoe (9) that has through hole, air inlet pipe (10) and air-introduced machine (12) is housed; Fixedly connected with the bottom of the escape pipe (3) of band rainhat (2) in the upper end of cylindrical shell (1), packing layer (8) is housed in the cylindrical shell (1), the following of packing layer (8) is the gripper shoe (9) that has through hole, the gripper shoe (9) that has through hole is connected with the internal fixation of cylindrical shell (1), fixedly connected with the outer wall of cylindrical shell (1) in the upper end that manhole (7) is positioned at packing layer (8), the air inlet of air inlet pipe (10) is communicated with the bottom of cylindrical shell (1), the inlet that goes out alkali liquor pipe (11) that air-introduced machine (12) is housed is communicated with the liquid outlet of cylindrical shell (1), it is characterized in that spray equipment (5) is installed in the top in the cylindrical shell (1), the inlet of spray equipment (5) is communicated with by flange (6) with the liquid outlet that advances alkali liquor pipe (4).
2, up-flow exhaust gas absorption device according to claim 1 is characterized in that spray equipment 5 is made up of shower (5-2) and tube connector (5-3); Spray equipment (5) is equipped with two to ten pairs of showers (5-2), every pair of shower (5-2) is with tube connector (5-3) central shaft symmetric arrays tube connector (5-3) both sides, the import of shower (5-2) is communicated with the drain pipe of tube connector (5-3), the inlet of tube connector (5-3) is communicated with the liquid outlet that advances alkali liquor pipe (4), and shower (5-2) is gone up the central shaft both sides and had fluid hole (5-1).
3, up-flow exhaust gas absorption device according to claim 2 is characterized in that the angle α with shower (5-2) section vertical axis of fluid hole (5-1) is 0～75 °, and fluid hole 5-1 diameter is 3～8mm.
4, according to claim 2 or 3 described up-flow exhaust gas absorption device, the α that it is characterized in that fluid hole (5-1) is 45 °.
5, according to claim 2 or 3 described up-flow exhaust gas absorption device, the diameter that it is characterized in that fluid hole (5-1) is 6mm.
6, up-flow exhaust gas absorption device according to claim 1 is characterized in that being equipped with in the cylindrical shell 1 two to ten layers of packing layer (8), and the filler of packing layer (8) is surperficial corrosion resistant filler, and packed height is 0.2～3m, and the diameter of filler is 25～50mm.
7, up-flow exhaust gas absorption device according to claim 6 is characterized in that surperficial corrosion resistant filler is porous plastics Ball-type packing or porous plastics polyhedron filler.
8, up-flow exhaust gas absorption device according to claim 6, the diameter that it is characterized in that filler is 32mm.
9, utilize the described up-flow exhaust gas absorption device of claim 1 to absorb in the sewage disposal and produce H
2The method of S gas is characterized in that the step of method is as follows: alkali lye flows into cylindrical shell (1) spray downwards by advancing alkali liquor pipe (4) through spray equipment (5); Then under the effect of air-introduced machine (12), the waste gas that produces in the sewage disposal process enters motion from bottom to top in the cylindrical shell (1) by air inlet pipe (2), alkali lye and waste gas form the air water adverse current, be dissolved in the alkali lye and the alkali lye neutralization reaction at packing layer (8) hydrogen sulfide gas, residue alkali lye flows out exhaust gas absorption device by going out alkali lye mouth (11), and the gas of the above-mentioned processing of process enters atmosphere by gas outlet (3).
10, up-flow exhaust gas absorption device according to claim 9 absorbs in the sewage disposal and produces H
2The method of S gas is characterized in that alkali lye is NaOH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710071712 CN101036854A (en) | 2007-01-31 | 2007-01-31 | Low-rising type waste air absorbing device and the method for generating H*S air during the sewerage process |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710071712 CN101036854A (en) | 2007-01-31 | 2007-01-31 | Low-rising type waste air absorbing device and the method for generating H*S air during the sewerage process |
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| CN102372619A (en) * | 2010-08-23 | 2012-03-14 | 刘同清 | Process for producing acetate by using dilute acetic acid |
| CN101987274B (en) * | 2009-08-06 | 2012-07-25 | 杰智环境科技股份有限公司 | Device and method for enhancing purification of organic waste gas by using water vapor |
| CN101905109B (en) * | 2009-06-05 | 2012-11-14 | 杰智环境科技股份有限公司 | Device and method for washing, purifying and recovering organic waste gas by wet process |
| CN105928380A (en) * | 2016-06-06 | 2016-09-07 | 克拉玛依金鑫油田环保工程有限公司 | Oil-water mixed steam spray cooling tower and skid-mounted type oil-water mixed steam cooling device |
| CN108103322A (en) * | 2017-12-19 | 2018-06-01 | 东北大学 | Thiocarbamide and the technique for carrying gold from difficult-treating gold mine is prepared in situ |
| CN114275872A (en) * | 2022-01-14 | 2022-04-05 | 杭州深瑞水务有限公司 | Oxidation tower for subcritical water oxidation process |
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2007
- 2007-01-31 CN CN 200710071712 patent/CN101036854A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905109B (en) * | 2009-06-05 | 2012-11-14 | 杰智环境科技股份有限公司 | Device and method for washing, purifying and recovering organic waste gas by wet process |
| CN101987274B (en) * | 2009-08-06 | 2012-07-25 | 杰智环境科技股份有限公司 | Device and method for enhancing purification of organic waste gas by using water vapor |
| CN102372619A (en) * | 2010-08-23 | 2012-03-14 | 刘同清 | Process for producing acetate by using dilute acetic acid |
| CN105928380A (en) * | 2016-06-06 | 2016-09-07 | 克拉玛依金鑫油田环保工程有限公司 | Oil-water mixed steam spray cooling tower and skid-mounted type oil-water mixed steam cooling device |
| CN108103322A (en) * | 2017-12-19 | 2018-06-01 | 东北大学 | Thiocarbamide and the technique for carrying gold from difficult-treating gold mine is prepared in situ |
| CN108103322B (en) * | 2017-12-19 | 2019-10-25 | 东北大学 | Thiocarbamide and the technique for mentioning gold from difficult-treating gold mine is prepared in situ |
| CN114275872A (en) * | 2022-01-14 | 2022-04-05 | 杭州深瑞水务有限公司 | Oxidation tower for subcritical water oxidation process |
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