CN101579595A - Novel process for treating fermented waste gas of amino acid by utilizing spray cooling method - Google Patents
Novel process for treating fermented waste gas of amino acid by utilizing spray cooling method Download PDFInfo
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- CN101579595A CN101579595A CNA2009100202271A CN200910020227A CN101579595A CN 101579595 A CN101579595 A CN 101579595A CN A2009100202271 A CNA2009100202271 A CN A2009100202271A CN 200910020227 A CN200910020227 A CN 200910020227A CN 101579595 A CN101579595 A CN 101579595A
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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
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E50/00—Technologies for the production of fuel of non-fossil origin
- Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel
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- Treating Waste Gases (AREA)
- Vaporization, Distillation, Condensation, Sublimation, And Cold Traps (AREA)
- Heat Treatment Of Water, Waste Water Or Sewage (AREA)
- Gas Separation By Absorption (AREA)
Abstract
The invention discloses a novel process for treating fermented waste gas of amino acid by utilizing a spray cooling method. The fermented waste gas is conveyed to a gas-liquid separator by a fan, the separated wastewater with high COD enters a mash tank for recycling, gas enters a spray tower, and the condensed low-temperature gas enters the next working procedure through the upper part of the spray tower; the lower part of the spray tower is provided with a water tank, spray water subjected to temperature rise preliminarily filters solid purities obtained by the washing during the spraying in the water tank, then the filtered spray water enters a heat exchanger after the filtration through a filter to perform heat exchange with cooling water produced by a cooling tower, and the spray water is sent into the spray tower after the temperature of the spray water is reduced once again; and the produced condensed water and the spray water are mixed during the temperature reduction, then are drained out of the water tank, and are sent into a wastewater treatment plant. The process is simple, has convenient operation, ensures that the condensed water can be repeatedly used, has no problem of secondary pollution, and solves the technical problems of high water vapor content and large subsequent process load in the gas treated by the prior art.
Description
Technical field
The invention belongs to basic acid fermentation technical field of waste gas treatment, relate to a kind of spraying cooling method of utilizing and handle the fermentation waste gas of amino acid new technology.
Background technology
In economic development; pollution to environment is increasing; amino acid fermentation industry particularly; the pollution of fermentation, waste gas is bigger; although carried out many explorations and effort in this regard; obtained many achievements, but with at present requirement on environmental protection is still had gap, remain so far big in investment, effect is undesirable or problem such as running expense height.The improvement of fermented waste fluid, waste gas has become the great difficult problem of restriction amino acid production by ferment method enterprise development.At present, domestic amino acid industry has obtained remarkable effect to the improvement of fermented waste fluid, but must get simultaneously at the improvement waste liquid, has but ignored the improvement of waste gas.As Baoji Fufeng Biotechnology Co., Ltd. in order to administer the high gravity fermentation waste liquid that produces in the amino acid production process, add nontoxic high polymer coagulant fox extracting thallus protein earlier, adopt four-effect evaporator under vacuum state, to carry out evaporation and concentration then, concentrate dry matter content general about 46%, concentrate adopts spray granulation drier to carry out drying-granulating, in the whitewashing dry run, a large amount of moisture evaporates under the elevated temperature heat wind action and forms stink steam.At this situation, company's development has also been installed domestic exclusive a whole set of dedusting taste removal equipment, make the waste gas that produces in the whitewashing dry run enter venturi type spray column and electrostatic precipitator dedusting and taste removal successively by induced duct, waste liquid returns four-effect evaporator vacuum evaporation and concentrates, and tail gas is through air-introduced machine, air inducing discharge of pipes.Though the present operation conditions of a whole set of dedusting taste removal equipment is good, can reduce the solid particulate matter and the stink that produce in the production effectively, and condensed water is carried out reuse, effect is comparatively remarkable.Yet handle the back existing problems be: this complete equipment adopts fermentation waste water to spray cooling in venturi spray operation, and spray flux is big, and water temperature is higher, and secondary has formed a large amount of steam; Though the employing electrostatic dust collection equipment has been removed the solid particulate matter in the useless flue gas effectively, the also higher (428.0mg/m of solid particulate matter in the useless flue gas of outlet
3); Steam wrap the solid particulate matter that do not eliminated and the trace in the concentrate based on the peculiar smell organic matter of burnt burning together through 120 meters chimneys dischargings, chimney breast forms tangible visual aerosol cigarette tep reel and is threaded onto the sky, city, spread tens kilometers drop points in the residential block, cause the masses' bad reaction, influenced the image of this national civilized city of Baoji.
On the basis of above-mentioned background technology, after electrostatic dust collection equipment, design-build flue gas after-treatment technology adopts biofilter and the plasma reactor smoke treatment that combines, and obtains good result.Yet the temperature that the microorganism in the biofilter is fit to grow up is generally at 30～40 ℃, if temperature is below or above this scope, activation of microorganism can reduce greatly, thereby influences the effect that bioanalysis is handled.Repeated detection result shows that behind electrostatic precipitation, gas temperature is 55～58 ℃, and there are the higher drop of COD content in relative humidity 100%, dustiness greater than 400mg in this external gas.The temperature of reduction gas can make the condensate moisture in the gas, and the absolute moisture content in the unit gas descends.So must can effectively reduce water vapour content in the gas by the temperature that requisite measure reduces gas, reduce the load of subsequent technique.
Summary of the invention
The objective of the invention is to solve water vapour content height in the gas that prior art handles, technical problem that the subsequent technique load is big, provide a kind of spraying cooling method of utilizing to handle the fermentation waste gas of amino acid new technology, to overcome the deficiencies in the prior art.
Technical scheme of the present invention is: zymotic fluid waste gas is behind shaped Venturi dedusting and electrostatic precipitation, at first remove and contain the high flue gas of COD by gas-liquid separator, carry out spray column then and carry out gas-liquid heat-transfer mass transfer spray, reduce gas temperature, simultaneously dustiness in the part organic volatile in the washing gas, the reduction gas.
Its technology point is: fermentation waste gas is delivered to gas-liquid separator by blower fan, original droplet in the gas and part particle and the liquid that carries in pipe conveying procedure are separated, reduce the burden of subsequent technique, high-COD waste water after the separation enters the mash pond and recycles, gas is entered by the bottom of spray column, shower water is sprayed into by the top of spray column, place inorganic filler in the spray column, increase the gas-liquid contact area, along with gas rises gradually, its temperature constantly descends, and discharging condensed water, the shower water temperature raises from top to bottom gradually simultaneously, draws heat, the gas temperature of handling is reduced to design load, enters next operation; Bottom at spray column is provided with water tank, shower water after the intensification is the preliminary solid impurity that filters under the washing of spray process in water tank, enter the cooling water heat exchange that heat exchanger and cooling tower produce after filtering by filter, the shower water temperature is sent into spray column after reducing once more again; In the temperature-fall period, can produce a certain amount of condensed water, after these condensed waters and original shower water mix, discharge water tank, directly enter the waste water treatment plant.
Technology of the present invention is simple, easy to operate, and condensed water can use repeatedly, does not have secondary pollution problem, solves water vapour content height in the gas that prior art handles, technical problem that the subsequent technique load is big.
The specific embodiment
Fermentation waste gas is delivered to gas-liquid separator by blower fan, and the original droplet in the gas and part particle and the liquid that carries in pipe conveying procedure are separated, and the high-COD waste water after the separation enters the mash pond and recycles; Gas is entered by the bottom of spray column, shower water is sprayed into by top, place inorganic filler in the spray column, increase the gas-liquid contact area, along with gas rises gradually, its temperature constantly descends, and discharging condensed water, the shower water temperature raises from top to bottom gradually simultaneously, draws heat, the gas temperature of handling is reduced to 35 ℃, enters next operation; A water tank is set in the spray column bottom, shower water after the intensification is the preliminary solid impurity that filters under the washing of spray process in water tank, enter the cooling water heat exchange that heat exchanger and cooling tower produce after filtering by filter again, the shower water temperature is sent into spray column after reducing once more, after condensed water that produces in the temperature-fall period and shower water mix, discharge water tank, directly enter the waste water treatment plant.
Claims (1)
1, a kind of spraying cooling method of utilizing is handled the fermentation waste gas of amino acid new technology, it is characterized in that: fermentation waste gas is delivered to gas-liquid separator by blower fan, original droplet in the gas and part particle and the liquid that carries in pipe conveying procedure are separated, high-COD waste water after the separation enters the mash pond and recycles, gas is entered by the bottom of spray column, shower water is sprayed into by the top of spray column, place inorganic filler in the spray column, treated cryogenic gas enters next operation by the top of spray column; Bottom at spray column is provided with water tank, shower water after the intensification is the preliminary solid impurity that filters under the washing of spray process in water tank, enter the cooling water heat exchange that heat exchanger and cooling tower produce after filtering by filter, the shower water temperature is sent into spray column after reducing once more again; After condensed water that produces in the temperature-fall period and shower water mix, discharge water tank, directly enter the waste water treatment plant.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100202271A CN101579595B (en) | 2009-03-30 | 2009-03-30 | Novel process for treating fermented waste gas of amino acid by utilizing spray cooling method |
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| CN2009100202271A CN101579595B (en) | 2009-03-30 | 2009-03-30 | Novel process for treating fermented waste gas of amino acid by utilizing spray cooling method |
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| CN101579595A true CN101579595A (en) | 2009-11-18 |
| CN101579595B CN101579595B (en) | 2011-09-07 |
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| CN2009100202271A Active CN101579595B (en) | 2009-03-30 | 2009-03-30 | Novel process for treating fermented waste gas of amino acid by utilizing spray cooling method |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102210959A (en) * | 2011-05-17 | 2011-10-12 | 内蒙古阜丰生物科技有限公司 | Spraying granulation flue gas treatment system and process |
| CN102690901A (en) * | 2011-03-25 | 2012-09-26 | 赣州华坚国际鞋城有限公司 | Constant-temperature drying system for patent leather |
| CN102824835A (en) * | 2012-09-08 | 2012-12-19 | 济宁阳光煤化有限公司 | System for recycling waste gas and waste heat during 2-hydroxy-3-naphthoic acid production process |
| CN103418204A (en) * | 2013-08-09 | 2013-12-04 | 中国中轻国际工程有限公司 | Tail gas treatment process for biological aerobic fermentation tank and equipment system thereof |
| CN103521018A (en) * | 2013-10-25 | 2014-01-22 | 滁州市全丰物资有限公司 | Dedusting cooling tower for polyester resin production |
| CN104258665A (en) * | 2014-10-22 | 2015-01-07 | 贵州林亚达林化科技有限责任公司 | Water curtain dust removal system |
| CN108211599A (en) * | 2018-03-14 | 2018-06-29 | 苏州特福佳实验室系统工程有限公司 | Suitable for the spray column of cold district |
| CN108744891A (en) * | 2018-07-09 | 2018-11-06 | 李洁 | A kind of method of industrial waste gas processing |
| CN109647138A (en) * | 2019-01-21 | 2019-04-19 | 北京中科博联环境工程有限公司 | Air water processing system and air water processing method |
| CN111036035A (en) * | 2019-12-27 | 2020-04-21 | 北京英惠尔生物技术有限公司 | Method for recycling waste water of yeast fermentation leaching tower |
| CN112551813A (en) * | 2020-12-08 | 2021-03-26 | 肇庆专工试剂科技有限公司 | Spraying circulating water treatment device and method and wood shaving piece drying equipment |
| CN112999815A (en) * | 2021-03-18 | 2021-06-22 | 华东理工大学 | Device and method for heat exchange washing of oil gas |
-
2009
- 2009-03-30 CN CN2009100202271A patent/CN101579595B/en active Active
Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102690901A (en) * | 2011-03-25 | 2012-09-26 | 赣州华坚国际鞋城有限公司 | Constant-temperature drying system for patent leather |
| CN102210959B (en) * | 2011-05-17 | 2014-03-19 | 内蒙古阜丰生物科技有限公司 | Spraying granulation flue gas treatment process for spraying granulation flue gas treatment system |
| CN102210959A (en) * | 2011-05-17 | 2011-10-12 | 内蒙古阜丰生物科技有限公司 | Spraying granulation flue gas treatment system and process |
| CN102824835A (en) * | 2012-09-08 | 2012-12-19 | 济宁阳光煤化有限公司 | System for recycling waste gas and waste heat during 2-hydroxy-3-naphthoic acid production process |
| CN102824835B (en) * | 2012-09-08 | 2014-12-10 | 济宁阳光煤化有限公司 | Reclamation of waste gas and waste heat during 2-hydroxy-3-naphthoic acid production process |
| CN103418204A (en) * | 2013-08-09 | 2013-12-04 | 中国中轻国际工程有限公司 | Tail gas treatment process for biological aerobic fermentation tank and equipment system thereof |
| CN103418204B (en) * | 2013-08-09 | 2016-08-10 | 中国中轻国际工程有限公司 | The technique of biology aerobic fermentation tank tail gas process and device systems thereof |
| CN103521018A (en) * | 2013-10-25 | 2014-01-22 | 滁州市全丰物资有限公司 | Dedusting cooling tower for polyester resin production |
| CN104258665A (en) * | 2014-10-22 | 2015-01-07 | 贵州林亚达林化科技有限责任公司 | Water curtain dust removal system |
| CN108211599A (en) * | 2018-03-14 | 2018-06-29 | 苏州特福佳实验室系统工程有限公司 | Suitable for the spray column of cold district |
| CN108744891A (en) * | 2018-07-09 | 2018-11-06 | 李洁 | A kind of method of industrial waste gas processing |
| CN109647138A (en) * | 2019-01-21 | 2019-04-19 | 北京中科博联环境工程有限公司 | Air water processing system and air water processing method |
| CN111036035A (en) * | 2019-12-27 | 2020-04-21 | 北京英惠尔生物技术有限公司 | Method for recycling waste water of yeast fermentation leaching tower |
| CN112551813A (en) * | 2020-12-08 | 2021-03-26 | 肇庆专工试剂科技有限公司 | Spraying circulating water treatment device and method and wood shaving piece drying equipment |
| CN112999815A (en) * | 2021-03-18 | 2021-06-22 | 华东理工大学 | Device and method for heat exchange washing of oil gas |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101579595B (en) | 2011-09-07 |
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