How to deal with workshop exhaust gas

Workshop exhaust due to the production of different processes, different types of pollutants produced, different types of pollutants should be used in different waste gas treatment process, the following Everest blue editor mainly organic waste gas and acid mist waste gas as an example, for you to introduce how to deal with the workshop exhaust.
 

How to deal with organic waste gas in workshop
(1) The main source: industrial production will produce a variety of organic waste gas, mainly including a variety of hydrocarbons, alcohols, aldehydes, acids, ketones and amines. The source of these gases is very wide, some of which are chemical industry, petrochemical, organic synthesis reaction equipment exhaust, printing industry, printing ink in organic solvents, machinery industry, mechanical spray paint, metal products produced by the odour, automotive industry, automotive paint, drying furnace casting production equipment exhaust, hardware, home furnishings factory spraying equipment exhaust, and so on.
(2) the hazards of organic waste gas: in the production, organic emissions has been a very prominent issue, the vast majority of organic waste gas is harmful to human health. Such as organic waste gas through the respiratory tract and skin into the human body, can give people's respiratory, blood, liver and other systems and organs caused by temporary and permanent j lesions, especially benzopyrene PAHs can make the human body directly carcinogenic, hazardous to human health.
Organic waste gas will also cause serious air pollution. Some organic matter into the atmosphere, under certain conditions to form photochemical smog, resulting in secondary pollution; some organic matter into the stratosphere, under the irradiation of ultraviolet light and ozone photochemical reaction, resulting in the ozone layer hole; some organic matter has a bad odour pollution and harmful gases of the duality of the two; there are also some organic matter will cause the greenhouse effect.
3) Exhaust gas treatment method:
Water film dust removal + activated carbon adsorption method
Dry filtration dust removal + activated carbon adsorption method
Activated carbon adsorption + catalytic combustion method

How to deal with the acid mist exhaust gas in the workshop
(1) The main source: chemical, electronics, metallurgy, electroplating, textile (chemical fibre), food, machinery manufacturing and other industries in the process of emission of acid, alkaline waste gas, such as seasoned food, acid, pickling, electroplating, electrolysis, storage batteries.
(2) the hazards of acid mist exhaust gas: acid mist gas caused by air pollution on the human body caused by the greater harm, especially on the site of the operation of the workers, the factory near the crops, the soil caused by the direct damage and the indirect impact is often unable to use money to measure.
(3) Exhaust gas treatment method: water film packing tower + alkali (acid) liquid absorption
3、Furnace exhaust, black smoke from power generation
(1) the main source: hardware industry, die-casting industry, foundry furnace equipment in the metal melting process of metal dust particles and combustion of diesel fuel (heavy oil) produced in the process of SO2, NOX harmful gases, generators work in the process of combustion of diesel fuel (heavy oil) produced in the exhaust gas and so on.
(2) The hazards of furnace exhaust, generator black smoke: furnace exhaust, generator black smoke is the main reason for the formation of acid rain, resulting in greater air pollution, especially on the site of the operation of the workers, crops near the plant, the soil caused by direct damage and indirect impact.
3）Treatment method: cyclone washing and spraying method + alkaline liquid absorption
Furnace exhaust, black smoke from the exhaust of the generator set, according to the current conventional practice is the use of cyclone washing spray method, the use of cyclone spray tower, the gas in the tower from the bottom upward high-speed movement, with the top down sprayed washing liquid contact, due to the tower set up a multi-layer cyclone, which can increase the gas-liquid contact area and contact time, so that the exhaust gas and water in the tower and the plate surface of the full contact. The pollutant carbon black in the tail gas is fully adsorbed by the water in the process of contacting with the spray water, and can be purified; NOx, SO2 and other gaseous pollutants in the tail gas are neutralised by adding a certain proportion of NaOH in the spray water to make the spray water alkaline, and when the water comes into contact with the tail gas in the process of spraying, a chemical reaction occurs, which neutralises the NOx, SO2 and other gaseous pollutants and achieves a good treatment effect.