What different place does method of industrial off-gas treatment have?

Industrial waste gas says from our daily life far not far also, say close not close also so everybody more or less, still should understand one part the knowledge about industrial off-gas treatment, accordingly we prepare to introduceIndustrial off-gas treatmentWhat different place does the method have? If you have,want to know the think of a way about this respect, everybody can look together.

What industry abandons aerial root to occupy contaminant is different, can divide to remove dust, desulphurization takes off saltpetre technology, purify of VOC of organic waste gas, at present the control technology of industrial off-gas treatment needs environmental protection company to invest from processing effect, project, moving cost, charge rate oneself, cover an area of size and have wait for a respect to undertake evaluating to technical equipment without 2 pollution. In executive respect also be the principle that acts on adjust measures to local conditions, choose most agree with the control program of our region and the particular case of this spot and technical equipment. At present our country is engaged in major of off-gas treatment pilot the unit is not much, still not all plans from project whole fully, project of equipment of organic off-gas treatment is designed, equipment is made, the system is compositive the integrated ability with moving management. Although be in a few developed countries, waste gas administers management and control technology to handle technical itself compared with other also is a newer field, accordingly, unit operation remains the main aspect of the processing technique. Pollution of processing of industrial waste gas basically is the mankind be being produced and mineral fuel burns in life activity process (coal and oil) , the drilling when mining, blow up, building materials smashs, screening, smelt casts what wait and cause. Owner of air pollution of organic off-gas treatment wants a few kinds to have oxide of sulfur of dust grain, carbon dioxide, 2 oxidation or nitrogen.

　What the technology of contaminant of industrial off-gas treatment is aimed at contaminant is different and different.

1, oxide of nitrogen, sulfur administers a technology

In atmosphere because had many azotic oxide, sulfur oxide, just produce air pollution, because produced an another contaminative event. Scientist of off-gas treatment company is aimed at the property of this kind of oxide, the technology that put forward to solve pollution has absorb law, adsorptive law, condensation law, catalysis to change law, combustion law, biology to purify law, membrane separation law and attenuant law. The most commonly used now is to absorb a law, waste gas course absorbs tower and cat head genteel the absorption below fluid happening communication, the harmful composition in the composition in making absorb fluid and waste gas produces chemical reaction, reduced the harmful ingredient in waste gas. After company of organic off-gas treatment handles Shen Jia, come out from cat head when waste gas when, already made clean gas. This kind is treated corrupt the method is simple, investment is little, the operation is convenient also.

Processing pollution still has way of a kind of commonly used chimney stack dilute. 50 time – 60 time, european industry development is rapid, cannot discover applicable processing technology temporarily, cannot pollute a city again, arose to be as high as hundreds of meters chimney, use headroom air current to diffuse fast characteristic, make aeriform contaminant gets dilute. This kind of method still is used extensively up to now. As the development of science and technology, aid plan environmental protection basically has to method of off-gas treatment of air pollution industry dry method, wet 2 kinds, the most commonly used is bag type dust catcher (filter) , bubble dust catcher (wet) etc. Rise as what to removing dust efficiency asks.

The processing of organic waste gas:

Be aimed at industrial off-gas treatment in international home at present, the method of organic off-gas treatment basically has physical law, chemical law, biology way, include filter of adsorptive, direct combustion, catalytic combustion, chemical oxidation, biology to wait for processing method, company of organic off-gas treatment shows level our country to basically have in the light of craft of organic off-gas treatment at present: Segregation law, combustion law, absorb law of oxidation of catalysis of low temperature of law, condensation law, plasma, adsorptive law to wait.

1, industrial off-gas treatment keeps apart a law:

It is to pass special type to filter material, buy is put at process of the platoon outside waste gas, via mechanical segregation, achieve waste gas to administer the effect thereby. Advantage: Tall to efficiency of processing of smoke of mist form gum, without technical requirement, the operation is simple. Defect: Cannot effective purify organic matter, wind block is large.

　　 2, law of combustion of industrial off-gas treatment:

Use heat the method of high temperature, organic waste gas direct combustion is handled, in order to achieve the goal that waste gas purifies. Advantage: Purify efficiency tall, can amount to 95% above. Defect: Need a large number of heat energy, need wastes a large number of the sources of energy, equipment of balata off-gas treatment generates NOX easily also to wait below high temperature cause pollution 2 times.

　　 3, industrial off-gas treatment absorbs a law:

Use absorb fluid and contact of each other of useless gas phase, the harmful material dissolve that makes waste gas medium is entered in absorbing fluid, make waste gas is able to purify thereby. Absorb fluid to be handled separately. Advantage: Investment is small, moving fare is low, the operation is simple. Defect: Processing efficiency is low, purify efficiency not tall, it is about 50% , achieve requirement of relevant environmental protection hard, suit low density organic waste gas, have pollution 2 times.

4, law of condensation of industrial off-gas treatment:

Drop in temperature through condensation, when temperature under harmful material condense when the dot, liquid state of gaseous harmful material translate into, from inside air depart comes out, purify thereby. Advantage: Moving stability, purify efficiency tall. Defect: Investment is larger, taller to environment and operation personnel requirement, and specific power consumption is too big, moving cost is high.

　 5, wait to oxidize from microtherm catalysis law:

The 4th kind of except solid state, liquid state, gaseous state condition that plasma is corporeal existence, equipment of organic off-gas treatment has the plant macroscopical degree inside electrically neutral with tall conductivity. Particle of many active electron, ionic, excitation state and photon are contained to wait in plasma. These active particle and aeriform element touch the result of whisk, · of freedom radical O, OH · , HO2 mixes the strong oxidisability with many generation the member of O3; organic matter with very powerful oxidisability is collided by high-energy electron, be aroused to reach atom be good at rupture and form small fragment base group or atomic;O · , OH · , HO2, O3 with invoke element of atomic, organic matter, base the reaction such as round, freedom radical, make degradation of oxidation of organic matter element is CO, CO2 and HO2 finally. Advantage: Extensive applicability, agree with handle low density ( ) , the harmful gas with virulent foul play, made up for the blank that other technology cannot handle. And the operation is simple. Defect: Alone microtherm plasma technology still has its defective place when handling harmful gas, be like cannot complete thoroughly harmful gas translate into harmless gas, by-product is more; and in oxygen taller; takes off the ozone; specific power consumption with the many generation below plasma except efficiency lower.

　 6, law of adsorption of device of activated carbon adsorption:

The big face that uses sub level of earth of bath of porous activated carbon, silicon, anthracitic divide into equal parts is odd can, limited company of equipment of grand rich environmental protection goes to adsorption of organic gas element its surface, purify thereby. Advantage: Processing efficiency is tall (activated carbon adsorption can amount to 99% above) , applicable and extensive, the operation is simple, investment fare is low, moving charge is relatively inferior. Defect: Systematic leeway loss is big, the saturation of sorbent nods difficult control, sorbent capacity is finite.

What different place to have about method of industrial off-gas treatment? We introduce here, if you want to know more the professional knowledge about industrial off-gas treatment, reach relevant data everybody can pay close attention to us.