CN103272463A - Process for treating malodorous gases in sludge - Google Patents
Process for treating malodorous gases in sludge Download PDFInfo
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- CN103272463A CN103272463A CN2013101986174A CN201310198617A CN103272463A CN 103272463 A CN103272463 A CN 103272463A CN 2013101986174 A CN2013101986174 A CN 2013101986174A CN 201310198617 A CN201310198617 A CN 201310198617A CN 103272463 A CN103272463 A CN 103272463A
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Abstract
The invention relates to a process for treating malodorous gases in sludge. The process comprises the following steps that: due to adoption of two-stage absorption manners in two absorption towers, gas passes through a first-stage absorption tower at first so as to enable alkaline waste gas, reductive waste gas and solid impurities in gas to be eliminated by using acid absorption liquid; then, gas passes through a second-stage absorption tower so as to enable residual little chlorine and acidic substances in gas to be absorbed by alkali absorption liquid; and finally, absorbed and purified gas is discharged through an exhaust pipe on the top of the second-stage absorption tower in a standard reaching manner. The process for treating malodorous gases in sludge disclosed by the invention is capable of effectively treating malodorous gases emitted from sludge, therefore, secondary pollution of waste gas to air is reduced; the living environment of people is greatly improved; and health of people gets a certain guarantee.
Description
Technical field
The present invention relates to foul gas treatment process in a kind of gas treatment technology, the especially mud.
Background technology
Not only contain heavy metal substance and hardly degraded organic substance in the mud that city, trade effluent treatment plant produce, also contain multiple microorganisms such as a large amount of bacteriums, fungi, protozoan, miniature metazoa, algae, virus, moisture percentage in sewage sludge is higher, and easily corruption is rotten, and produces stench gas.Stench gas contains H
2S, NH
3, mercaptan, thioether, dimethyl disulfide and organic amine etc.These foul gas high volatilities, easily diffusion has penetrating odor, and is most of to the toxic effect of human body, respiratory system, digestive system, internal system, nervous system and spirit to the people have a negative impact, and can cause acute poisoning even death under the high concentration situation.In order to protect and to improve Treatment of Sludge scene and surrounding environment hygienic quality, reduce air is caused secondary pollution, effectively handle very necessary to the stench waste gas in the mud.
Summary of the invention
The present invention proposes according to the deficiency that can't effectively handle stench waste gas in the mud in the existing gas treatment technology, aims to provide foul gas treatment process in the mud that the stench waste gas in the mud is effectively handled.
In order to solve the problems of the technologies described above, the present invention is solved by the following technical programs:
Foul gas treatment process in the mud may further comprise the steps:
A. acid absorption liquid is delivered to first nozzle by first pump, first nozzle sprays acid absorption liquid to first packing layer, acid absorption liquid is along first packing layer drip and drop down onto the first grade absorption tower bottom from top to bottom, acid absorption liquid is delivered to first nozzle by first pump again from the first grade absorption tower bottom, thereby acid absorption liquid is recycled; Acid absorption liquid recycle the cost that has reduced whole technology.
B. oxidant is added first grade absorption tower from medicament inlet, oxidant produces the strong oxidizing property material with the acid absorption liquid reaction that sprays; The strong oxidizing property material has been strengthened the absorption to odor pollutant in the gas.
C. alkaline absorption solution is delivered to second nozzle and the 3rd nozzle by second pump, second nozzle and the 3rd nozzle spray alkaline absorption solution to absorption liquid redistributor and second packing layer, alkaline absorption solution passes through absorption liquid redistributor and the second packing layer drip from top to bottom, and drop down onto bottom the two-level absorption tower, alkaline absorption solution is delivered to second nozzle and the 3rd nozzle by second pump again from the two-level absorption tower bottom, thereby alkaline absorption solution is recycled; Alkaline absorption solution recycle the cost that has reduced whole technology.
D. contain H
2S, NH
3, mercaptan stench gas enter first grade absorption tower from first air inlet pipe, gas and acid absorption liquid and strong oxidizing property substance reaction are removed the H in the gas
2S, NH
3, mercaptan; Utilize acid solution and strong oxidizing property material that the odor pollutant in the gas is removed.
E. reacted gas is removed the acid mist carried secretly in the gas through first demister or/and solia particle, and gas is discharged from the first grade absorption tower top then; Discharge first grade absorption tower after the purification of gas through first demister, and first demister prevented that a large amount of acid mists enters two-level absorption tower in the first grade absorption tower, avoided a large amount of acid mists that the reaction in the two-level absorption tower is exerted an adverse impact.
F. gas is discharged the back from first grade absorption tower and is entered two-level absorption tower by blower fan from second air inlet pipe; Blower fan extracts and sends into gas out two-level absorption tower from first grade absorption tower.
G. the strong oxidizing property material, acid absorption liquid, the H that carry secretly in the gas are removed in gas and alkaline absorption solution reaction
2S, mercaptan; Utilize a small amount of acid ingredient neutralization reaction of carrying secretly in alkali lye and the gas, remove a spot of acid composition in the gas.
H. gas is removed alkaline absorption solution particulate and solia particle in the gas through second demister; Second demister purifies gas, removes the micro-alkali lye of carrying secretly in the gas, to prevent gas air is polluted.
I. gas is discharged from two-level absorption tower at last.
As preferably, acid absorption liquid is sulfuric acid or/and hydrochloric acid, acid absorption liquid concentration be 10 ?30%.Acid absorption liquid concentration 15 ?be optimal selection in 25% the scope.
As preferably, oxidant is that clorox is or/and H
2O
2Clorox is or/and H
2O
2Make oxidant and can not pollute environment, be conducive to environmental protection.
As preferably, alkaline absorption solution be sodium hydroxide solution and concentration be 8 ?30%.Alkaline absorption solution concentration 10 ?be optimal selection in 15% the scope.
As preferably, the one-level sediment that produces in the first grade absorption tower is discharged from sewage draining exit.After gas treatment finishes, just can make the one-level sediment discharge first grade absorption tower as long as sewage draining exit opened, make things convenient for the cleaning of first grade absorption tower.
As preferably, the two-stage precipitation thing that produces in the two-level absorption tower is discharged from sewage draining exit.After gas treatment finishes, just can make the two-stage precipitation thing discharge two-level absorption tower as long as sewage draining exit opened, make things convenient for the cleaning of two-level absorption tower.
As preferably, the opening that first air inlet pipe is positioned at first grade absorption tower inside down.When opening makes gas enter first grade absorption tower inside from first air inlet pipe down, the impurity in the gas will directly drop in the bottom of first grade absorption tower.
As preferably, the opening that second air inlet pipe is positioned at two-level absorption tower inside down.When opening makes gas enter two-level absorption tower inside from second air inlet pipe down, the impurity in the gas will directly drop in the bottom of two-level absorption tower.
As preferably, be structured packing in first packing layer and second packing layer.First packing layer increases the contact area of acid absorption liquid and gas, and gas and acid absorption liquid can fully be reacted, and improves acid absorption liquid to purification and the absorption efficiency of gas stench composition.Second packing layer increases the contact area of alkaline absorption solution and gas, and gas and alkaline absorption solution can fully be reacted, and improves alkaline absorption solution to purification and the absorption efficiency of gas stench composition.
As preferably, be void tower between first packing layer and first air inlet pipe, can prevent that the solid matters such as sulphur that react generation from stopping up first packing layer.
As preferably, first nozzle and second nozzle are the spinning liquid nozzle, and the 3rd nozzle is atomizer.The spinning liquid nozzle can make and absorb medicament evenly adding and increase gas-liquid surface contact area, improves to absorb medicament to the purification absorption efficiency of foul gas.Atomizer can make the absorption medicament be vaporific even adding, can prevent absorption liquid spray dead angle, can increase the gas-liquid surface contact area, improves to absorb medicament to the purification absorption efficiency of foul gas.
First grade absorption tower of the present invention top is provided with first demister, can prevent effectively that acid mist and solia particle from entering two-level absorption tower, alkaline absorption solution life cycle and prevent from also can avoiding because of solia particle gathering blocking pipe and equipment in pipe because of when producing sodium sulphate, sodium chloride crystallization and stop up second packing layer in prolonging two-level absorption tower; The two-level absorption tower top is provided with second demister, can remove alkali lye particulate and the solia particle carried secretly in the waste gas, makes the tail gas qualified discharge behind the absorption cleaning; Second packing layer top is provided with the absorption liquid redistributor, can make from the alkaline absorption solution redistribution of secondary absorbent recirculation pump and respectively evenly, and to increase the contact area of absorption liquid and waste gas, the raising absorption liquid is to the absorption cleaning efficient of waste gas stench composition.
The foul gas treatment process adopts the mode that two-stage absorbs in the mud of the present invention, with gas earlier by first grade absorption tower with alkaline waste gas, reproducibility waste gas and solid impurity in the acid absorption liquid removal gas, a small amount of acidic materials remaining in the gas are neutralized with alkaline absorption solution by two-level absorption tower and make gas reduction, the gas after the reduction is emitted from two-level absorption tower at last.The foul gas treatment process can effectively be handled the stench waste gas that comes out in the mud in the mud, has reduced the secondary pollution of waste gas to air, people's living environment is improved greatly and makes people's health obtain certain guarantee.
Description of drawings
Fig. 1 is foul gas treatment process schematic diagram in the mud.
The specific embodiment
Below in conjunction with accompanying drawing and the specific embodiment the present invention is described in further detail:
Oxidant is clorox in the present embodiment, sulfuric acid and mixed in hydrochloric acid acid (wherein sulfuric acid accounts for 60%, and hydrochloric acid accounts for 40%), and alkaline absorption solution is NaOH.
Foul waste gas treatment process in a kind of mud may further comprise the steps:
A. be that 15%(is with sulphur acid meter with concentration) sulfuric acid and mixed in hydrochloric acid acid (wherein sulfuric acid accounts for 60%, hydrochloric acid accounts for 40%) 20 be delivered to first nozzle 12 by one-level absorbent recirculation pump 2, first nozzle 12 sprays mixed acid 20 to first packing layer 13, mixed acid 20 is along first packing layer 13 drip and drop down onto first grade absorption tower 1 bottom from top to bottom, mixed acid 20 is delivered to first nozzle 12 by one-level absorbent recirculation pump 2 again from first grade absorption tower 1 bottom, thereby mixed acid 20 is recycled;
C. be that 12% NaOH 30 is delivered to second nozzle 22 and the 3rd nozzle 221 by secondary absorbent recirculation pump 5 with concentration, second nozzle 22 and the 3rd nozzle 221 spray NaOH 30 to absorption liquid redistributor 26, NaOH 30 is along absorption liquid redistributor 26 drips, and through second packing layer 23 drip and drop down onto two-level absorption tower 4 bottoms from top to bottom, NaOH 30 is delivered to second nozzle 22 and the 3rd nozzle 221 by secondary absorbent recirculation pump 5 again from two-level absorption tower 4 bottoms, thereby NaOH 30 is recycled;
D. stench waste gas 40 enters first grade absorption tower 1 from first air inlet pipe 14, and waste gas 40 and acid absorption liquid 20 and oxidant haptoreaction are removed the H in the waste gas 40
2S, mercaptan, NH
3And organic amine;
The part chemical equation is: NaClO+H
2S → NaCl+S ↓+H
2O
Cl
2+H
2S→2HCl+S↓
2NH
3+H
2SO
4→(NH
4)
2SO
4
CH
3SH+3Cl
2+2H
2O→CH
3SO
2Cl+5HCl
E. reacted waste gas 40 is removed the acid mist carried secretly in the waste gas 40 through first demister 11 or/and solia particle, and waste gas 40 is discharged from first grade absorption tower 1 top then;
The part chemical equation is: Cl
2+ 2NaOH → NaClO+NaCl+H
2O
HCl+NaOH→NaCl+H
2O
H
2S+2NaOH→2H
2O+Na
2S
CH
3SH+NaOH→CH
3SNa+H
2O
I. waste gas 40 is at last from two-level absorption tower 4 top blast pipe qualified discharges;
J. the solid product of first grade absorption tower 1 bottom collection is by sewage draining exit 15 periodic cleanings of tower bottom; The solid product that collect two-level absorption tower 4 bottoms is by sewage draining exit 25 periodic cleanings of tower bottom.
Be structured packing in first packing layer 13 and second packing layer 23.
Be void tower between first packing layer 13 and first air inlet pipe 14.
Two-level absorption tower packing layer top is provided with the absorption liquid redistributor.
Oxidant is calcium hypochlorite in the present embodiment, and acid absorption liquid is hydrochloric acid, and alkaline absorption solution is NaOH.
Foul gas treatment process in the mud may further comprise the steps:
A. with concentration be 10 ?30% hydrochloric acid 20 be delivered to first nozzle 12 by first pump 2, first nozzle 12 sprays hydrochloric acid 20 to first packing layer 13, hydrochloric acid 20 is along first packing layer 13 drip and drop down onto first grade absorption tower 1 bottom from top to bottom, hydrochloric acid 20 is delivered to first nozzle 12 by first pump 2 again from first grade absorption tower 1 bottom, thereby hydrochloric acid 20 is recycled;
C. with concentration be 10 ?15% NaOH 30 be delivered to second nozzle 22 and the 3rd nozzle 221 by second pump 5, second nozzle 22 and the 3rd nozzle 221 spray NaOH 30 to absorption liquid redistributor 26 and second packing layer 23, NaOH 30 passes through absorption liquid redistributor 26 and second packing layer, 23 drips from top to bottom and drops down onto two-level absorption tower 4 bottoms, NaOH 30 is delivered to second nozzle 22 and the 3rd nozzle 221 by second pump 5 again from two-level absorption tower 4 bottoms, thereby NaOH 30 is recycled;
D. contain H
2S, NH
3, mercaptan stench gas 40 enter first grade absorption tower 1 from first air inlet pipe 14, gas 40 and acid absorption liquid 20 and strong oxidizing property substance reaction are removed the H in the gas 40
2S, NH
3, mercaptan;
Chemical equation wherein is: ClO
-+ H
2S → Cl
-+ S ↓+H
2O
Cl
2+H
2S→2HCl+S↓
NH
3+H
+→[NH
4]
+
CH
3SH+3Cl
2+2H
2O→CH
3SO
2Cl+5HCl
E. reacted gas 40 is removed the acid mist carried secretly in the gases 40 through first demister 11 or/and solia particle, and gas 40 is discharged from first grade absorption tower 1 top then;
Chemical equation wherein is: Cl
2+ 2OH
-→ ClO
-+ Cl
-+ H
2O
H
++OH
-→H
2O
H
2S+2OH
-→2H
2O+S
2-
CH
3SH+OH
-→CH
3S
-+H
2O
After gas treatment finishes, just can make one-level sediment 15 discharge first grade absorption towers 1 as long as the sewage draining exit on two absorption towers all opened, two-stage precipitation thing 25 is discharged two-level absorption towers 4.Made things convenient for the cleaning of first grade absorption tower 1 and two-level absorption tower 4;
The opening that first air inlet pipe 14 is positioned at first grade absorption tower 1 inside down, the opening that second air inlet pipe 24 is positioned at two-level absorption tower 4 inside is down.
Be structured packing in first packing layer 13 and second packing layer 23.
Be void tower between first packing layer 13 and first air inlet pipe 14.
In a word, the above only is preferred embodiment of the present invention, and all equalizations of doing according to the present patent application claim change and modify, and all should belong to the covering scope of patent of the present invention.
Claims (10)
1. foul gas treatment process in the mud is characterized in that may further comprise the steps:
A. acid absorption liquid (20) is delivered to first nozzle (12) by first pump (2), first nozzle (12) sprays acid absorption liquid (20) to first packing layer (13), acid absorption liquid (20) is along first packing layer (13) drip and drop down onto first grade absorption tower (1) bottom from top to bottom, acid absorption liquid (20) is delivered to first nozzle (12) by first pump (2) again from first grade absorption tower (1) bottom, thereby acid absorption liquid (20) is recycled;
B. oxidant (10) is added first grade absorption tower (1) from medicament inlet (16), oxidant (10) produces the strong oxidizing property material with acid absorption liquid (20) reaction that sprays;
C. alkaline absorption solution (30) is delivered to second nozzle (22) and the 3rd nozzle (221) by second pump (5), second nozzle (22) and the 3rd nozzle (221) spray alkaline absorption solution (30) to absorption liquid redistributor (26) and second packing layer (23), alkaline absorption solution (30) passes through absorption liquid redistributor (26) and second packing layer (23) drip from top to bottom, and drop down onto bottom the two-level absorption tower (4), alkaline absorption solution (30) is delivered to second nozzle (22) and the 3rd nozzle (221) by second pump (5) again from two-level absorption tower (4) bottom, thereby alkaline absorption solution (30) is recycled;
D. contain H
2S, NH
3, mercaptan stench gas (40) enter first grade absorption tower (1) from first air inlet pipe (14), gas (40) and acid absorption liquid (20) and strong oxidizing property substance reaction, the H in the removal gas (40)
2S, NH
3, mercaptan;
E. reacted gas (40) is removed the acid mist carried secretly in the gas (40) through first demister (11) or/and solia particle, and gas (40) is discharged from first grade absorption tower (1) top then;
F. gas (40) is discharged the back from first grade absorption tower (1) and is entered two-level absorption tower (4) by blower fan (3) from second air inlet pipe (24);
G. gas (40) and alkaline absorption solution (30) reaction are removed the strong oxidizing property material, acid absorption liquid (20), the H that carry secretly in the gas (40)
2S, mercaptan;
H. gas (40) is removed alkaline absorption solution (30) particulate and solia particle in the gas (40) through second demister (21);
I. gas (40) is discharged from two-level absorption tower (4) at last.
2. foul gas treatment process in the mud according to claim 1 is characterized in that: acid absorption liquid (20) for sulfuric acid or/and hydrochloric acid, acid absorption liquid concentration be 10 ?30%.
3. foul gas treatment process in the mud according to claim 1 is characterized in that: oxidant (10) for clorox or/and H
2O
2
4. foul gas treatment process in the mud according to claim 1 is characterized in that: alkaline absorption solution (30) for sodium hydroxide solution and concentration be 8 ?30%.
5. foul gas treatment process in the mud according to claim 1 is characterized in that: the one-level sediment (15) that produces in the first grade absorption tower (1) is discharged from sewage draining exit; The two-stage precipitation thing (25) that produces in the two-level absorption tower (4) is discharged from sewage draining exit.
6. foul gas treatment process in the mud according to claim 1 is characterized in that: first air inlet pipe (14) is positioned at the inner opening of first grade absorption tower (1) down.
7. foul gas treatment process in the mud according to claim 1 is characterized in that: second air inlet pipe (24) is positioned at the inner opening of two-level absorption tower (4) down.
8. foul gas treatment process in the mud according to claim 1 is characterized in that: be structured packing in first packing layer (13) and second packing layer (23).
9. mud stench waste gas treatment process according to claim 1 is characterized in that: be void tower between first packing layer (13) and first air inlet pipe (14).
10. foul gas treatment process in the mud according to claim 1, it is characterized in that: first nozzle (12) and second nozzle (22) are the spinning liquid nozzle, and the 3rd nozzle (221) is atomizer.
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|---|---|---|---|
| CN201310198617.4A CN103272463B (en) | 2013-05-23 | 2013-05-23 | Foul gas treatment process in mud |
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|---|---|---|---|
| CN201310198617.4A CN103272463B (en) | 2013-05-23 | 2013-05-23 | Foul gas treatment process in mud |
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| CN103272463B CN103272463B (en) | 2015-12-02 |
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Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105903336A (en) * | 2016-05-30 | 2016-08-31 | 李景致 | Safe environment-friendly multifunctional leaking chlorine absorption device |
| CN106139901A (en) * | 2016-08-15 | 2016-11-23 | 山东派力迪环保工程有限公司 | Efficiently liquid phase TRS purifies technique and device used thereof |
| CN106807197A (en) * | 2015-11-30 | 2017-06-09 | 上海巴安水务股份有限公司 | Odor treatment device |
| CN106984151A (en) * | 2017-05-05 | 2017-07-28 | 南京工大开元环保科技有限公司 | A kind of sewage plant foul waste gas abatement equipment and processing method |
| CN107694315A (en) * | 2017-10-25 | 2018-02-16 | 北京中持净水材料技术有限公司 | One kind eliminates the unusual smell method and its device |
| CN110102180A (en) * | 2019-06-21 | 2019-08-09 | 云南民族大学 | A kind of method of mud Emulphors turbid liquid phase catalytic oxidation simultaneous SO_2 and NO removal |
| CN112933940A (en) * | 2021-03-03 | 2021-06-11 | 江苏科技大学 | Ammonia gas recovery and ammonium sulfate crystallization system and working method thereof |
| CN113332843A (en) * | 2021-05-18 | 2021-09-03 | 济南圣泉集团股份有限公司 | Process for deodorizing and deslagging casting flue gas |
| CN113860332A (en) * | 2021-07-20 | 2021-12-31 | 乳源东阳光电化厂 | Recycling method of sodium hypochlorite-containing waste liquid |
| CN113975942A (en) * | 2021-10-26 | 2022-01-28 | 杭州国泰环保科技股份有限公司 | NMP recovery processing system and multistage processing method in battery production enterprise factory |
| CN114367177A (en) * | 2022-01-14 | 2022-04-19 | 河南工程学院 | Green production method and device for removing hydrogen sulfide in industrial gas through two-step reaction |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09271633A (en) * | 1996-04-08 | 1997-10-21 | Nkk Corp | Wet exhaust gas desulfurization method |
| US20060156923A1 (en) * | 2003-06-05 | 2006-07-20 | Basf Aktiengesellschaft | Method for the deacidification of a fluid stream by means of an inert scrubbing column and corresponding device |
| CN101890282A (en) * | 2009-05-19 | 2010-11-24 | 金圣钟 | Air purifier and method thereof |
| CN101961595A (en) * | 2010-10-08 | 2011-02-02 | 中山大学 | Desulfurization-high temperature biological deodorization method for foul smell waste gas produced by sludge treatment |
| CN102764565A (en) * | 2011-05-05 | 2012-11-07 | 艾特克控股集团有限公司 | Method for processing malodorous gas |
-
2013
- 2013-05-23 CN CN201310198617.4A patent/CN103272463B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09271633A (en) * | 1996-04-08 | 1997-10-21 | Nkk Corp | Wet exhaust gas desulfurization method |
| US20060156923A1 (en) * | 2003-06-05 | 2006-07-20 | Basf Aktiengesellschaft | Method for the deacidification of a fluid stream by means of an inert scrubbing column and corresponding device |
| CN101890282A (en) * | 2009-05-19 | 2010-11-24 | 金圣钟 | Air purifier and method thereof |
| CN101961595A (en) * | 2010-10-08 | 2011-02-02 | 中山大学 | Desulfurization-high temperature biological deodorization method for foul smell waste gas produced by sludge treatment |
| CN102764565A (en) * | 2011-05-05 | 2012-11-07 | 艾特克控股集团有限公司 | Method for processing malodorous gas |
Non-Patent Citations (1)
| Title |
|---|
| 张建伟: "《化工单元操作实验与设计》", 31 March 2012 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106807197A (en) * | 2015-11-30 | 2017-06-09 | 上海巴安水务股份有限公司 | Odor treatment device |
| CN105903336A (en) * | 2016-05-30 | 2016-08-31 | 李景致 | Safe environment-friendly multifunctional leaking chlorine absorption device |
| CN106139901A (en) * | 2016-08-15 | 2016-11-23 | 山东派力迪环保工程有限公司 | Efficiently liquid phase TRS purifies technique and device used thereof |
| CN106984151A (en) * | 2017-05-05 | 2017-07-28 | 南京工大开元环保科技有限公司 | A kind of sewage plant foul waste gas abatement equipment and processing method |
| CN107694315A (en) * | 2017-10-25 | 2018-02-16 | 北京中持净水材料技术有限公司 | One kind eliminates the unusual smell method and its device |
| CN110102180A (en) * | 2019-06-21 | 2019-08-09 | 云南民族大学 | A kind of method of mud Emulphors turbid liquid phase catalytic oxidation simultaneous SO_2 and NO removal |
| CN112933940A (en) * | 2021-03-03 | 2021-06-11 | 江苏科技大学 | Ammonia gas recovery and ammonium sulfate crystallization system and working method thereof |
| CN112933940B (en) * | 2021-03-03 | 2022-08-19 | 江苏科技大学 | Ammonia gas recovery and ammonium sulfate crystallization system and working method thereof |
| CN113332843A (en) * | 2021-05-18 | 2021-09-03 | 济南圣泉集团股份有限公司 | Process for deodorizing and deslagging casting flue gas |
| CN113860332A (en) * | 2021-07-20 | 2021-12-31 | 乳源东阳光电化厂 | Recycling method of sodium hypochlorite-containing waste liquid |
| CN113975942A (en) * | 2021-10-26 | 2022-01-28 | 杭州国泰环保科技股份有限公司 | NMP recovery processing system and multistage processing method in battery production enterprise factory |
| CN114367177A (en) * | 2022-01-14 | 2022-04-19 | 河南工程学院 | Green production method and device for removing hydrogen sulfide in industrial gas through two-step reaction |
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|---|---|
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