• <rt id="w88gu"><delect id="w88gu"></delect></rt>
    <button id="w88gu"></button><code id="w88gu"></code>
    国产一区二区三区av在线无码观看,中文字幕av日韩有码,精品国产亚洲一区二区三区,高清偷拍一区二区三区,亚洲欧美偷拍另类A∨,欧美激情a∨在线视频播放,成人福利国产精品视频,久久久av波多野一区二区


    Four pollution sources and treatment methods of coating production line
    Time:2012-10-22 14:00:28

    I. Waste gas Pollution and Treatment:

           Exhaust gas from the pretreatment, spray paint room, flow chamber, drying oven emissions, using paint containing organic solvent or its content is low, is one of the effective methods to solve the organic solvent, and try to reduce the dosage of organic solvent, reduce the organic solvent waste gas processing, organic solvent containing high concentration at the end of the exhaust gas concentration processing, adopt diluted emissions into the atmosphere; Discharge method, catalytic combustion method and adsorption method are used to treat the organic dissolved liquid crystal waste gas with high concentration and low air volume discharged from the drying and curing furnace. The low concentration and large air volume exhaust gas discharged from the paint chamber is treated with activated carbon adsorption method, and the activated carbon fiber bee wheel method is also used to treat organic waste gas.


    Ii. Waste Water Pollution and Treatment

           The waste water comes from degreasing, phosphating and passivation waste water generated before painting, waste water containing electrophoretic paint generated by cathode electrophoresis, waste water generated by water-based paint spray room and waste water generated by cleaning, and waste water regularly discharged by circulating water in the spray room of finishing paint. Generally all the waste water is concentrated in the basement and treated according to the type of sewage. Neutralization, precipitation, filtration and discharge of acid-alkali wastewater; Waste water containing 6 - valent chromium was treated by electrolysis and chemical reduction. For the spray booth waste water, add fine coagulant treatment, paint residue is discharged automatically, treated waste water, continue to recycle use, paint residue burn off or with other industrial waste disposal.


           Waste residue pollution and Treatment Waste residue mainly refers to sediment produced by wastewater treatment. Generally, water quality can be removed by plate and frame filter press and transported to the special waste residue depository.


    4. Noise pollution and control

    Service hotline

    020-36860788

    WeChat

    Feedback

    Feedback

    主站蜘蛛池模板: 成人自拍视频在线| 无码一区二区三区中文字幕| 亚洲AV无码精品色午夜果冻| 呦男呦女视频精品八区| 久久天堂av综合色无码专区| 成av免费大片黄在线观看| 中文字幕无码高潮到痉挛| 成人精品在线观看| 成人无号精品一区二区三区 | 婷婷综合缴情亚洲狠狠| 人人爽人人模人人人爽人人爱| 中文字幕一区二区三区在线不卡| 国产亚洲精品AA片在线播放天| 久久大香伊蕉在人线观看热| 亚洲av永久无码精品九九| 久久精品黄aa片一区二区三区| 久久精品国产99久久久古代 | 国产欧美日韩不卡一区二区三区| 国产免国产免‘费| 国产精品理论| 亚洲国产中文曰韩丝袜| 蜜臀av999无码精品国产专区 | 国产精品原创av片国产日韩| 无码毛片内射白浆视频| 人人妻人人爽人人澡欧美一区| 8090成人午夜精品无码| 射精专区一区二区朝鲜| 成人午夜福利免费专区无码| 欧洲女人牲交视频免费| 欧美成人一区二区三区片免费| 中文字幕资源站| 久久国产精品娇妻素人| 色悠久久久久综合网伊人| 国产成人一区二区三区免费| 国产在线观看黄| 中文字幕乱码久久午夜| 啊轻点灬大JI巴太粗太长了欧美| 玩弄放荡人妻少妇系列| 色在线 | 国产| 91精品国产免费青青碰在线观看 | 中字无码av电影在线观看网站|