工業(yè)企業(yè)中揮發(fā)性有機(jī)廢氣(VOCs)按產(chǎn)生來源
噴漆廢氣:主要成分為丙酮、丁醇、二甲苯、甲苯、乙酸乙酯、乙酸丁酯等揮發(fā)性有機(jī)化合物,主要產(chǎn)生于油漆噴涂等表面處理企業(yè),常見的處理方法有油簾吸收、水簾吸收,再配合二三級的活性炭吸附等。
Spray paint exhaust gas: The main components are volatile organic compounds such as acetone, butanol, xylene, toluene, ethyl acetate, butyl acetate, etc. It is mainly generated in surface treatment enterprises such as paint spraying. Common treatment methods include oil curtain absorption, water curtain absorption, and combined with secondary and tertiary active carbon adsorption.
塑料、塑膠廢氣:主要成分為塑料、塑膠等粒子受熱加工過程中揮發(fā)出來的聚合物單體,因塑料、塑膠組成成分較為復(fù)雜,廢氣中主要含乙烯、丙烯、苯乙烯、丙烯晴和丁二烯等烯烴類塑料聚合物單體,但濃度普遍較低、風(fēng)量大。涉及企業(yè)主要有塑料造粒企業(yè)、化纖生產(chǎn)企業(yè)、注塑企業(yè)、橡膠生產(chǎn)企業(yè)等,處理方法主要有活性炭吸收、等離子凈化等。
Plastic and plastic waste gas: The main components are polymer monomers that evaporate during the thermal processing of particles such as plastics and plastics. Due to the complex composition of plastics and plastics, the waste gas mainly contains ethylene, propylene, styrene, acrylonitrile, and butadiene, among other olefinic plastic polymer monomers, but the concentration is generally low and the air volume is large. The main enterprises involved include plastic granulation enterprises, chemical fiber production enterprises, injection molding enterprises, rubber production enterprises, etc. The treatment methods mainly include activated carbon absorption, plasma purification, etc.
定型廢氣:主要成分為其主要成分為醛、酮、烴、脂肪酸、醇、酯、內(nèi)酯、雜環(huán)化合物、芳香族化合物。涉及的企業(yè)主要為染整企業(yè)、化纖生產(chǎn)企業(yè),通常采用水噴淋處理工藝和靜電吸附式處理工藝。
Fixed exhaust gas: Its main components are aldehydes, ketones, hydrocarbons, fatty acids, alcohols, esters, lactones, heterocyclic compounds, and aromatic compounds. The enterprises involved mainly include dyeing and finishing enterprises and chemical fiber production enterprises, usually using water spray treatment process and electrostatic adsorption treatment process.
化工有機(jī)廢氣:主要由化工企業(yè)排放產(chǎn)生,廢氣成分同化工企業(yè)設(shè)計生產(chǎn)的化工產(chǎn)品種類有較大關(guān)系,普遍會采用冷凝回收及催化燃燒技術(shù)等凈化收集處理方法。
Chemical organic waste gas: It is mainly generated by the emissions of chemical enterprises, and the composition of the waste gas is closely related to the types of chemical products designed and produced by chemical enterprises. Generally, purification collection and treatment methods such as condensation recovery and catalytic combustion technology are used.
印刷廢氣:主要成分為油墨中揮發(fā)出來的甲苯、非甲烷類總烴、乙酸乙酯、乙醇等。涉及的企業(yè)主要為含有油墨印刷工序的企業(yè),主要如包裝品、印花等公司,一般采用活性炭吸附。
Printing waste gas: The main components are toluene, non-methane total hydrocarbons, ethyl acetate, ethanol, etc. that evaporate from the ink. The enterprises involved are mainly those that involve ink printing processes, such as packaging products, printing companies, etc. Generally, activated carbon adsorption is used.
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