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window._bd_share_config={"common":{"bdSnsKey":{},"bdText":"","bdMini":"2","bdPic":"","bdStyle":"0","bdSize":"16"},"share":{},"image":{"viewList":["qzone","tsina","tqq","renren","weixin"],"viewText":"分享到：","viewSize":"16"},"selectShare":{"bdContainerClass":null,"bdSelectMiniList":["qzone","tsina","tqq","renren","weixin"]}};with(document)0[(getElementsByTagName('head')[0]||body).appendChild(createElement('script')).src='http://bdimg.share.baidu.com/static/api/js/share.js?v=89860593.js?cdnversion='+~(-new Date()/36e5)]; </script>  </div> </div> <div id="jlrjvtnppp" class="content"><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">　　四大工業(yè)廢氣處理方法詳解</span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">　　空氣污染是目前世界上突出的環(huán)境問題之一。污染物的主要來源是工業(yè)廢氣。由于工業(yè)廢氣的生產(chǎn)工藝不同，不同類型的污染物應(yīng)采用不同的處理工藝。</span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">　　1、有機(jī)廢氣</span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">　　1)主要來源:工業(yè)生產(chǎn)中會(huì)產(chǎn)生各種有機(jī)廢氣，主要包括烴類、醇類、醛類、酸類、酮類、胺類等。這些廢氣的來源非常廣泛，包括一些化工石化、有機(jī)合成反應(yīng)設(shè)備排氣、印刷行業(yè)印墨中的有機(jī)溶劑、機(jī)械行業(yè)機(jī)械噴漆、金屬制品產(chǎn)生的氣味、汽車行業(yè)汽車噴漆、干燥爐鑄件生產(chǎn)設(shè)備排氣、五金、家具廠噴涂設(shè)備排氣等。</span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">　　2）有機(jī)廢氣的危害：在生產(chǎn)中，有機(jī)廢氣的排放一直是一個(gè)非常突出的問題，絕大多數(shù)有機(jī)廢氣對(duì)人體健康有害。如果有機(jī)廢氣通過呼吸道和皮膚進(jìn)入人體，可引起呼吸、血液、肝臟等系統(tǒng)和器官的病變，特別是苯并芘多環(huán)芳烴可使人體直接致癌，危害人體健康。</span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">　　有機(jī)廢氣也會(huì)造成嚴(yán)重的空氣污染。部分有機(jī)物進(jìn)入大氣后，在一定條件下形成光化學(xué)煙霧，造成二次污染；部分有機(jī)物進(jìn)入平流層后，在紫外線下與臭氧發(fā)生光化學(xué)反應(yīng)，造成臭氧層空洞；部分有機(jī)物具有惡臭污染和有害氣體的兩重性；還有一些有機(jī)物會(huì)引起溫室效應(yīng)。</span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">　　3)廢氣處理方法：</span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">　　a.水膜除塵+活性炭吸附法；b.干式過濾除塵+活性炭吸附法c.活性炭吸附+催化燃燒法；</span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">　　2、酸霧廢氣</span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">　　1)主要來源:化工、電子、冶金、電鍍、紡織(化纖)、食品、機(jī)械制造等行業(yè)排放的酸堿廢氣，如調(diào)味食品、制酸、酸洗、電鍍、電解、電池等。</span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">　　2）酸霧廢氣危害：酸霧氣體造成的空氣污染對(duì)人體危害較大，特別是對(duì)現(xiàn)場(chǎng)作業(yè)人員、工廠附近作物和土壤的直接損害和間接影響往往無法用錢來衡量。</span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">　　3)廢氣處理方法:水膜填料塔+堿(酸)液吸收。</span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";"></span></p><p style="text-align: center"><img src="/data/upload/image/20161011/1476158433428001.png" alt="廢氣處理公司" width="500" height="334" border="0" vspace="0" title="廢氣處理公司" style="width: 500px; height: 334px;"/></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";"></span><br/></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">　　3、熔爐廢氣，發(fā)電黑煙</span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">　　1)主要來源:金屬熔化過程中五金、壓鑄、鑄造熔爐設(shè)備產(chǎn)生的金屬粉塵顆粒和燃燒柴油(重油)過程中產(chǎn)生的SO2、發(fā)電機(jī)工作時(shí)燃燒柴油(重油)過程中產(chǎn)生的廢氣等NOX有害氣體。</span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">　　2）熔爐廢氣和發(fā)電機(jī)黑煙的危害：熔爐廢氣和發(fā)電機(jī)黑煙是酸雨形成的主要原因，造成較大的空氣污染，特別是對(duì)現(xiàn)場(chǎng)操作人員、工廠附近的農(nóng)作物和土壤造成直接損壞和間接影響。</span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">　　3)治理方法:旋流水洗噴法+堿液吸收</span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">　　對(duì)于熔爐廢氣和發(fā)電機(jī)組排放的廢氣黑煙，按照目前的慣例，采用旋流板水洗噴淋法和旋流板噴淋塔。氣體在塔內(nèi)自下而上高速運(yùn)動(dòng)，與自上而下噴出的洗滌液接觸。由于塔內(nèi)設(shè)置了多層旋流板，可以增加氣液的接觸面積和接觸時(shí)間，使廢氣與水在塔內(nèi)和板面上充分接觸。廢氣中的污染物碳黑在與噴水接觸時(shí)被水充分吸附凈化；廢氣中的NOx、SO2等氣態(tài)污染物通過在噴淋水中加入一定比例的NaOH，使噴淋水呈堿性。在噴淋過程中，當(dāng)水與尾氣接觸時(shí)，會(huì)發(fā)生化學(xué)反應(yīng)，導(dǎo)致NOx、中和SO2等氣態(tài)污染物，達(dá)到良好的處理效果。</span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">　　4、廚房油煙，火煙</span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">　　1)主要來源:油煙是各類廠家在廚房做飯時(shí)產(chǎn)生的油煙氣體分子。火煙是爐子完全或不完全燃燒時(shí)排放的有害氣體。它是一種以游離炭為主的黑煙，呈絮狀，容易粘附在固體物質(zhì)上，其余為COX、SO2、NOX，屬于高濃度煙塵氣體。</span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">　　2)廚房油煙、火煙的危害：廚房油煙含有許多對(duì)人體有嚴(yán)重危害的物質(zhì)，會(huì)增加患肺癌的風(fēng)險(xiǎn)。廚房火煙也是主要的空氣污染之一，氣體呈酸性，遇水容易形成酸，會(huì)污染水流、土壤和建筑物的腐蝕。</span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">　　3)治理方法：</span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">　　A.油煙</span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">　　a.過濾吸附油煙凈化b.靜電油煙凈化c.低溫等離子體法</span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">　　B.火煙</span></p><p style="line-height: 1.75em;"><span style="font-family: 微軟雅黑, "Microsoft YaHei";">　　高濃度廚房火煙氣體采用旋流板水洗噴淋法，采用旋流板噴淋塔，氣體自下而上高速運(yùn)動(dòng)，與自上而下噴出的洗滌液接觸。由于塔內(nèi)設(shè)置了多層旋流板，可以增加氣液的接觸面積和接觸時(shí)間，使尾氣與水在塔內(nèi)和板面上充分接觸。廢氣中的污染物碳黑在與噴水接觸時(shí)被水充分吸附凈化；廢氣中的NOx、SO2等氣態(tài)污染物通過在噴淋水中加入一定比例的NaOH，使噴淋水呈堿性。在噴淋過程中，當(dāng)水與尾氣接觸時(shí)，會(huì)發(fā)生化學(xué)反應(yīng)，導(dǎo)致NOx、中和SO2等氣態(tài)污染物，達(dá)到良好的處理效果。</span></p></div> <h3 class="tag">相關(guān)標(biāo)簽：<a href="http://m.28fashion.com/tag/%E9%87%8D%E5%BA%86%E5%BA%9F%E6%B0%94%E6%B2%BB%E7%90%86">重慶廢氣治理</a>,<a 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