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目前国内外对治理挥发性有机废气即VOC开展了大量的研究和应用，下面将对这些处理技术加以介绍。
1.1吸附法
吸附法利用某些具有吸附能力的物质如活性炭、硅胶、沸石分子筛、活性氧化铝等具有多孔材料吸附有害成分而达到消除有害污染的目的。微孔和介孔材料已被广泛应用于吸附过程。然而，在实践中遇到的最常见的多孔材料（如活性炭，硅胶和分子筛）的一些缺点，如低的吸附能力，易燃性，并有与再生有关的其他问题。因此，人们一直专注新型多孔材料的吸附能力，快速反应动力学和高可逆性。吸附法的优点在于去除效率高、能耗低、工艺成熟、脱附后溶剂可回收。缺点在于是设备庞大，流程复杂，投资后运行费用较高且有二次污染产生，当废气中有胶粒物质或其他杂质时，吸附剂易中毒。
吸附法其吸附效果主要取决于吸附剂性质、气相污染物种和吸附系统工艺条件(如操作温度、湿度等因素)，因而吸附法的关键问题就在于对吸附剂的选择。吸附剂要具有密集的细孔结构，内表面积大，吸附性能好，化学性质稳定，耐酸碱，耐水，耐高温高压，不易破碎，对空气阻力小。常用的吸附剂主要有活性炭（颗粒状和纤维状）、活性氧化铝、硅胶、人工沸石等。
吸附法与其它净化方法的集成技术治理众多行业的有机废气，在国内得到了推广应用。如采用液体吸附和活性炭吸附法联合处理高浓度可回收苯乙烯废气；采用吸附法和催化燃烧法联合处理丙酮废气等。吸附法与其它净化方法联用后不仅避免了两种方法各自的缺点，而且具有吸附效率高，无二次污染等特点。
1.2
溶剂吸收法
以液体溶剂作为吸收剂，使废气中的有害成分被液体吸收，从而达到净化的目的，其吸收过程是根据有机物相似相溶原理，常采用沸点较高、蒸气压较低的柴油、煤油作为溶剂，使VOC从气相转移到液相中，然后对吸收液进行解吸处理，回收其中的VOC，同时使溶剂得以再生。该法不仅能消除气态污染物，还能回收一些有用的物质，可用来处理气体流量一般为3000～15 000 m3/h、浓度为0.05%～0.5%（体积分数）的VOC，去除率可达到95%～98%。该法的优点在于对处理大风量、常温、低浓度有机废气比较有效且费用低，而且能将污染物转化为有用产品。但溶剂吸收法仍有不足之处，由于吸收剂后处理投资大，对有机成分选择性大，易出现二次污染。因而在处理VOC时需要选择多种不同溶剂分别进行吸收，较大增加了成本与技术复杂性。另外，有机物在吸收剂中的溶解度、有机废气的浓度、吸收器的结构形式，如填料塔、喷淋塔，液气比、温度等操作参等均为吸收法的影响因素，任何一项发生改变将或多或少影响到吸收法效用。
1.3热破坏法
热破坏法分为直接燃烧法、催化燃烧法和浓缩燃烧法。其破坏机理是氧化、热裂解和热分解，从而达到治理VOCs的目的。热破坏法适合小风量，高浓度的气体处理，对于连续排放气体的场合,使用设备简单，投资少，操作方便，占地面积少，另外可以回收利用热能，气体净化彻底。由于热破坏法是催化燃烧，所以要求的起燃温度低，大部分有机物和CO在200～400℃即可完成反应，故辅助燃料消耗少，而且大量地减少了氮化物的产生，适用于较多场合。但热破坏法有燃烧爆炸危险，热力燃烧需消耗燃料，不能回收溶剂。而热催化氧化法中不允许废气中含有影响催化剂寿命和处理效率的尘粒和雾滴，也不允许有使催化剂中毒的物质，以防催化剂中毒，因此采用催化燃烧技术处理有机废气必须对废气作前处理。
1.4生物处理法
生物处理技术应用于有机废气的净化处理是近几年才开始的，是一项新兴的技术。常见的生物处理工艺包括生物过滤法、生物滴滤法、生物洗涤法、膜生物反应器和转盘式生物过滤反应器法。
生物膜法是利用微生物的新陈代谢过程对多种有机物和某些无机物进行生物降解，生成CO2和H2O，进而有效去除工业废气中的污染物质。该法具有设备简单，运行维护费用低，无二次污染等优点。但对成分复杂的废气或难以降解的VOC，去除效果较差,体积大和停留时间长，选用不同的填料其降解有机废气的效果参差不同。
酸雾净化塔运行方式
正常情况风机运行时，其吸收系统亦同时运行，运行人员应严格遵循工艺操作流程，完成对吸收装置的启停操作。
（1）吸收装置正常运行时，控制好加药剂量、循环吸收液流量、吸收塔液位、吸收液PH值、系统风压等，保障处理装置正常稳定运行。
（2）吸收装置长期停运(周期性检修)，按照一定的顺序停运烟气系统、吸收塔及对应的所有辅机设备，吸收液从吸收塔排至集水箱。
（3）吸收装置短期停运（几天时间），所有的辅机设备停运，喷淋液返回到吸收塔和集水池。
（4）吸收装置短时停运（几个小时），吸收系统的大容量辅机设备停运，喷淋液系统、工艺水系统和搅拌器保持运行。
我们秉承“创新与品质并重，环保与效益同行”的经营理念，持续不断的探索和创新，实现“投资合理、运行费低、环保达标、安全可靠”的产品品质。全国销售服务网络覆盖二十多个省市，设有京津冀、成渝、上海、广州、宁波等办事处，为客户及加盟商提供专业、方便、快捷的全程服务。常州蓝阳环保设备有限公司提供卓越品质的废气治理技术和设备，达到“核心材料自主化、非标设备模块化、标准设备流程化、项目工程精品化”的企业发展目标。
Pesticide plant waste gas treatment \ rubber factory waste gas treatment \ furniture factory waste gas treatment \ waste water treatment plant waste gas treatment plant \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ '\' \ 's environmental protection, Consulting Hotline: 0519-8166866213179310883, welcome your call! ~ ~
At present, there are a lot of researches and applications on the treatment of volatile organic compounds (VOC), which are introduced in this paper.
1.1 adsorption method
The adsorption method uses some adsorption materials such as activated carbon, silica gel, zeolite molecular sieve, activated alumina and so on. Microporous and mesoporous materials have been widely used in the adsorption process. However, some of the most common problems encountered in the practice of porous materials such as activated carbon, silica gel and molecular sieves, such as low adsorption capacity, flammability, and other problems associated with regeneration. Therefore, it has been focused on the adsorption capacity, fast reaction kinetics and high reversibility of novel porous materials. The adsorption method is the advantages of high removal efficiency, low energy consumption, mature technology, desorption solvent Recyclable. Is the disadvantage is that the equipment is huge, complex process, high operating cost and investment after the two pollution produced when colloidal substances or other impurities in the waste gas, adsorbent poisoning.
Adsorption method and its adsorption effect mainly depends on the adsorption properties, gas phase species and pollution adsorption system conditions (such as temperature, humidity and other factors), key problems thus adsorption method is on the choice of sorbent. The adsorbent has dense pore structure, large surface area, adsorption properties, chemical stability, acid and alkali resistance, water resistance, resistance to high temperature and high pressure, not easily broken, the air resistance is small. Commonly used adsorbents are activated carbon (granular and fibrous), activated alumina, silica gel, artificial zeolite, etc..
The integration of adsorption and other purification methods for the treatment of organic waste gases in many industries has been widely used in china. For example, liquid adsorption and activated carbon adsorption were used to treat the high concentration recovery of styrene waste gas. The combination of adsorption and other purification methods not only avoids the shortcomings of the two methods, but also has the characteristics of high adsorption efficiency, no two pollution, etc..
One point two
Solvent absorption method
The liquid solvent as the absorbent, the harmful components in the exhaust gas by liquid absorption, so as to achieve the purpose of purification, the absorption process is based on the similarity principle of organic phase, often using high boiling point and low vapor pressure of diesel and kerosene as solvent, the VOC transfer from the gas phase to the liquid phase, then the desorption with the absorption liquid and recovering the VOC at the same time, the solvent can be recycled. This method can not only remove gaseous pollutants, but also recycle some useful substances, can be used to process the gas flow rate is generally 3000 ~ 15000 m3/h, the concentration of 0.05% ~ 0.5% (volume fraction) of VOC, the removal rate can reach 95% ~ 98%. The advantages of this method are that it can be used to treat organic waste gas with large air volume, normal temperature and low concentration, and it can convert pollutants into useful products. However, there are still some disadvantages in solvent absorption method. Because of the large investment, the selectivity of organic components is large and the two pollution is easy to occur. Therefore, we need to choose a variety of different solvents in the treatment of VOC, respectively. In addition, the solubility of organic compounds in the absorbent, organic gas concentration, absorber structure, such as packing tower, spray tower, liquid gas ratio, temperature and other operating parameters were the factors affect the absorption law, any change will more or less influence to the absorption effect.
1.3 thermal method
The thermal destruction method is divided into direct combustion method, catalytic combustion method and concentrated combustion method. The mechanism of the destruction is oxidation, thermal decomposition and thermal decomposition, so as to achieve the purpose of VOCs treatment. The thermal destruction method suitable for small volume, high gas concentration, gas emission for continuous occasions, the use of simple equipment, less investment, convenient operation, small occupation area, in addition to the recovery and utilization of heat, gas purification completely. Due to the thermal damage is catalytic combustion, so the combustion temperature is low, most of the organic matter and CO in 200 ~ 400 degrees to complete the reaction, the auxiliary fuel consumption, and greatly reduce the nitride production, suitable for many occasions. However, the thermal destruction method has the risk of combustion explosion. The dust particles and droplets containing the influence of catalyst life and processing efficiency in the exhaust gas does not allow thermal catalytic oxidation, are not allowed to have catalyst poisons, to prevent poisoning of the catalyst, the catalytic combustion technology for treatment of organic waste gas must be made before the treatment of waste gas.
1.4 biological treatment
The application of biological treatment technology in the treatment of organic waste gas has been a new technology in recent years. The common biological treatment processes include biological filtration, biotrickling filtration, biological washing, membrane bioreactor and rotating disk biofilter.
Biological membrane method is the use of microbial metabolism process of a variety of organic matter and some of the inorganic biological degradation, the formation of CO2 and H2O, and effectively remove the industrial waste gas pollution. The method has the advantages of simple equipment, low operation and maintenance cost, no two pollution and so on. But on the gas composition of complex or difficult to degradation of VOC, the removal effect is poor, large volume and long residence time, the effect of different fillers stagger the degradation organic waste gas
目前国内外对治理挥发性有机废气即VOC开展了大量的研究和应用，下面将对这些处理技术加以介绍。
1.1吸附法
吸附法利用某些具有吸附能力的物质如活性炭、硅胶、沸石分子筛、活性氧化铝等具有多孔材料吸附有害成分而达到消除有害污染的目的。微孔和介孔材料已被广泛应用于吸附过程。然而，在实践中遇到的最常见的多孔材料（如活性炭，硅胶和分子筛）的一些缺点，如低的吸附能力，易燃性，并有与再生有关的其他问题。因此，人们一直专注新型多孔材料的吸附能力，快速反应动力学和高可逆性。吸附法的优点在于去除效率高、能耗低、工艺成熟、脱附后溶剂可回收。缺点在于是设备庞大，流程复杂，投资后运行费用较高且有二次污染产生，当废气中有胶粒物质或其他杂质时，吸附剂易中毒。
吸附法其吸附效果主要取决于吸附剂性质、气相污染物种和吸附系统工艺条件(如操作温度、湿度等因素)，因而吸附法的关键问题就在于对吸附剂的选择。吸附剂要具有密集的细孔结构，内表面积大，吸附性能好，化学性质稳定，耐酸碱，耐水，耐高温高压，不易破碎，对空气阻力小。常用的吸附剂主要有活性炭（颗粒状和纤维状）、活性氧化铝、硅胶、人工沸石等。
吸附法与其它净化方法的集成技术治理众多行业的有机废气，在国内得到了推广应用。如采用液体吸附和活性炭吸附法联合处理高浓度可回收苯乙烯废气；采用吸附法和催化燃烧法联合处理丙酮废气等。吸附法与其它净化方法联用后不仅避免了两种方法各自的缺点，而且具有吸附效率高，无二次污染等特点。
1.2
溶剂吸收法
以液体溶剂作为吸收剂，使废气中的有害成分被液体吸收，从而达到净化的目的，其吸收过程是根据有机物相似相溶原理，常采用沸点较高、蒸气压较低的柴油、煤油作为溶剂，使VOC从气相转移到液相中，然后对吸收液进行解吸处理，回收其中的VOC，同时使溶剂得以再生。该法不仅能消除气态污染物，还能回收一些有用的物质，可用来处理气体流量一般为3000～15 000 m3/h、浓度为0.05%～0.5%（体积分数）的VOC，去除率可达到95%～98%。该法的优点在于对处理大风量、常温、低浓度有机废气比较有效且费用低，而且能将污染物转化为有用产品。但溶剂吸收法仍有不足之处，由于吸收剂后处理投资大，对有机成分选择性大，易出现二次污染。因而在处理VOC时需要选择多种不同溶剂分别进行吸收，较大增加了成本与技术复杂性。另外，有机物在吸收剂中的溶解度、有机废气的浓度、吸收器的结构形式，如填料塔、喷淋塔，液气比、温度等操作参等均为吸收法的影响因素，任何一项发生改变将或多或少影响到吸收法效用。
1.3热破坏法
热破坏法分为直接燃烧法、催化燃烧法和浓缩燃烧法。其破坏机理是氧化、热裂解和热分解，从而达到治理VOCs的目的。热破坏法适合小风量，高浓度的气体处理，对于连续排放气体的场合,使用设备简单，投资少，操作方便，占地面积少，另外可以回收利用热能，气体净化彻底。由于热破坏法是催化燃烧，所以要求的起燃温度低，大部分有机物和CO在200～400℃即可完成反应，故辅助燃料消耗少，而且大量地减少了氮化物的产生，适用于较多场合。但热破坏法有燃烧爆炸危险，热力燃烧需消耗燃料，不能回收溶剂。而热催化氧化法中不允许废气中含有影响催化剂寿命和处理效率的尘粒和雾滴，也不允许有使催化剂中毒的物质，以防催化剂中毒，因此采用催化燃烧技术处理有机废气必须对废气作前处理。
1.4生物处理法
生物处理技术应用于有机废气的净化处理是近几年才开始的，是一项新兴的技术。常见的生物处理工艺包括生物过滤法、生物滴滤法、生物洗涤法、膜生物反应器和转盘式生物过滤反应器法。
生物膜法是利用微生物的新陈代谢过程对多种有机物和某些无机物进行生物降解，生成CO2和H2O，进而有效去除工业废气中的污染物质。该法具有设备简单，运行维护费用低，无二次污染等优点。但对成分复杂的废气或难以降解的VOC，去除效果较差,体积大和停留时间长，选用不同的填料其降解有机废气的效果参差不同。
酸雾净化塔运行方式
正常情况风机运行时，其吸收系统亦同时运行，运行人员应严格遵循工艺操作流程，完成对吸收装置的启停操作。
（1）吸收装置正常运行时，控制好加药剂量、循环吸收液流量、吸收塔液位、吸收液PH值、系统风压等，保障处理装置正常稳定运行。
（2）吸收装置长期停运(周期性检修)，按照一定的顺序停运烟气系统、吸收塔及对应的所有辅机设备，吸收液从吸收塔排至集水箱。
（3）吸收装置短期停运（几天时间），所有的辅机设备停运，喷淋液返回到吸收塔和集水池。
（4）吸收装置短时停运（几个小时），吸收系统的大容量辅机设备停运，喷淋液系统、工艺水系统和搅拌器保持运行。
我们秉承“创新与品质并重，环保与效益同行”的经营理念，持续不断的探索和创新，实现“投资合理、运行费低、环保达标、安全可靠”的产品品质。全国销售服务网络覆盖二十多个省市，设有京津冀、成渝、上海、广州、宁波等办事处，为客户及加盟商提供专业、方便、快捷的全程服务。常州蓝阳环保设备有限公司提供卓越品质的废气治理技术和设备，达到“核心材料自主化、非标设备模块化、标准设备流程化、项目工程精品化”的企业发展目标。
Pesticide plant waste gas treatment \ rubber factory waste gas treatment \ furniture factory waste gas treatment \ waste water treatment plant waste gas treatment plant \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ \ '\' \ 's environmental protection, Consulting Hotline: 0519-8166866213179310883, welcome your call! ~ ~
At present, there are a lot of researches and applications on the treatment of volatile organic compounds (VOC), which are introduced in this paper.
1.1 adsorption method
The adsorption method uses some adsorption materials such as activated carbon, silica gel, zeolite molecular sieve, activated alumina and so on. Microporous and mesoporous materials have been widely used in the adsorption process. However, some of the most common problems encountered in the practice of porous materials such as activated carbon, silica gel and molecular sieves, such as low adsorption capacity, flammability, and other problems associated with regeneration. Therefore, it has been focused on the adsorption capacity, fast reaction kinetics and high reversibility of novel porous materials. The adsorption method is the advantages of high removal efficiency, low energy consumption, mature technology, desorption solvent Recyclable. Is the disadvantage is that the equipment is huge, complex process, high operating cost and investment after the two pollution produced when colloidal substances or other impurities in the waste gas, adsorbent poisoning.
Adsorption method and its adsorption effect mainly depends on the adsorption properties, gas phase species and pollution adsorption system conditions (such as temperature, humidity and other factors), key problems thus adsorption method is on the choice of sorbent. The adsorbent has dense pore structure, large surface area, adsorption properties, chemical stability, acid and alkali resistance, water resistance, resistance to high temperature and high pressure, not easily broken, the air resistance is small. Commonly used adsorbents are activated carbon (granular and fibrous), activated alumina, silica gel, artificial zeolite, etc..
The integration of adsorption and other purification methods for the treatment of organic waste gases in many industries has been widely used in china. For example, liquid adsorption and activated carbon adsorption were used to treat the high concentration recovery of styrene waste gas. The combination of adsorption and other purification methods not only avoids the shortcomings of the two methods, but also has the characteristics of high adsorption efficiency, no two pollution, etc..
One point two
Solvent absorption method
The liquid solvent as the absorbent, the harmful components in the exhaust gas by liquid absorption, so as to achieve the purpose of purification, the absorption process is based on the similarity principle of organic phase, often using high boiling point and low vapor pressure of diesel and kerosene as solvent, the VOC transfer from the gas phase to the liquid phase, then the desorption with the absorption liquid and recovering the VOC at the same time, the solvent can be recycled. This method can not only remove gaseous pollutants, but also recycle some useful substances, can be used to process the gas flow rate is generally 3000 ~ 15000 m3/h, the concentration of 0.05% ~ 0.5% (volume fraction) of VOC, the removal rate can reach 95% ~ 98%. The advantages of this method are that it can be used to treat organic waste gas with large air volume, normal temperature and low concentration, and it can convert pollutants into useful products. However, there are still some disadvantages in solvent absorption method. Because of the large investment, the selectivity of organic components is large and the two pollution is easy to occur. Therefore, we need to choose a variety of different solvents in the treatment of VOC, respectively. In addition, the solubility of organic compounds in the absorbent, organic gas concentration, absorber structure, such as packing tower, spray tower, liquid gas ratio, temperature and other operating parameters were the factors affect the absorption law, any change will more or less influence to the absorption effect.
1.3 thermal method
The thermal destruction method is divided into direct combustion method, catalytic combustion method and concentrated combustion method. The mechanism of the destruction is oxidation, thermal decomposition and thermal decomposition, so as to achieve the purpose of VOCs treatment. The thermal destruction method suitable for small volume, high gas concentration, gas emission for continuous occasions, the use of simple equipment, less investment, convenient operation, small occupation area, in addition to the recovery and utilization of heat, gas purification completely. Due to the thermal damage is catalytic combustion, so the combustion temperature is low, most of the organic matter and CO in 200 ~ 400 degrees to complete the reaction, the auxiliary fuel consumption, and greatly reduce the nitride production, suitable for many occasions. However, the thermal destruction method has the risk of combustion explosion. The dust particles and droplets containing the influence of catalyst life and processing efficiency in the exhaust gas does not allow thermal catalytic oxidation, are not allowed to have catalyst poisons, to prevent poisoning of the catalyst, the catalytic combustion technology for treatment of organic waste gas must be made before the treatment of waste gas.
1.4 biological treatment
The application of biological treatment technology in the treatment of organic waste gas has been a new technology in recent years. The common biological treatment processes include biological filtration, biotrickling filtration, biological washing, membrane bioreactor and rotating disk biofilter.
Biological membrane method is the use of microbial metabolism process of a variety of organic matter and some of the inorganic biological degradation, the formation of CO2 and H2O, and effectively remove the industrial waste gas pollution. The method has the advantages of simple equipment, low operation and maintenance cost, no two pollution and so on. But on the gas composition of complex or difficult to degradation of VOC, the removal effect is poor, large volume and long residence time, the effect of different fillers stagger the degradation organic waste gas
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