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VOCs釋義

2017-3-13 16:11:48

工業廢氣中最難處理的就是揮發性有機物,又稱VOCs免费秒速赛车计划,揮發性有機物通過呼吸道和皮膚進入人體后,能給人的呼吸、血液、肝臟等系統和器官造成暫時性和永久性病變,尤其是苯并芘類多環芳烴能使人體直接致癌,已經引起人類的高度重視。工業生產中會產生揮發性有機物(VOCs),主要包括各種烴類、醇類、醛類、酸類、酮類和胺類等,這些揮發性有機物(VOCs)會造成大氣污染,危害人體健康,而且還會造成浪費,所以揮發性有機物(VOCs)的處理與凈化勢在必行。有毒揮發性有機物(VOCs)對環境污染非常嚴重,該類污染物具有排放量大、污染面廣和難以降解的特點。

1.HUIFAXINGYOUJIWUDELAIYUAN

免费秒速赛车计划 HUIFAXINGYOUJIWU(VOCs)LAIYUANGUANGFAN,ZHUYAOWURANYUANBAOKUOGONGYEYUAN、SHENGHUOYUAN。GONGYEYUANZHUYAOBAOKUOSHIYOULIANZHIYUSHIYOUHUAGONG、MEITANJIAGONGYUZHUANHUADENGHANVOCsYUANLIAODESHENGCHANXINGYE,YOULEI(RANYOU、RONGJIDENG)CHUCUN、YUNSHUHEXIAOSHOUGUOCHENG,TULIAO、YOUMO、JIAOZHANJI、NONGYAODENGYIVOCsWEIYUANLIAODESHENGCHANXINGYE,TUZHUANG、YINSHUA、ZHANHE、GONGYEQINGXIDENGHANVOCsCHANPINDESHIYONGGUOCHENG;SHENGHUOYUANBAOKUOJIANZHUZHUANGSHIZHUANGXIU、CANYINFUWUHEFUZHUANGGANXI。

免费秒速赛车计划 2.HUIFAXINGYOUJIWUDUIRENTIDEWEIHAI

HUIFAXINGYOUJIWUDUIRENTIDEWEIHAISHIDUOFANGMIANDE,BUTONGXINGYEHUIFAXINGYOUJIWUDEDUXINGYESHIGEBUXIANGTONGDE,QIZHONGGONGYEFEIQIZHONG10ZHONGCHANGJIANDEHUIFAXINGYOUJIWUDUIRENTIDEWEIHAIZHUYAOBIAOXIANWEI:BENLEIHUIFAXINGYOUJIWUDUOSUNHAIRENDEZHONGSHUSHENJING,ZAOCHENGSHENJINGXITONGZHANGAI,DANGBENZHENGQINONGDUGUOGAOSHI(KONGQIZHONGHANLIANGDA2%),KEYIYINQIZHISIXINGDEJIXINGZHONGDU。DUOHUANFANGJINGHUIFAXINGYOUJIWUYOUQIANGLIEDEZHIAIXING。BENSUANLEIHUIFAXINGYOUJIWUNENGSHIXIBAODANBAIZHIFASHENGBIANXINGHUONINGGU,ZHISHIQUANSHENZHONGDU。FASHENGJINGLEIHUIFAXINGYOUJIWUZHONGDUSHI,KEYINQIHUXIKUNNAN、YANZHONGZHIXI、YISHISANGSHIZHIZHISIWANG。HUIFAXINGYOUJIWUXIAOJIBENYINGXIANGSHENJINGXITONG、XUEXIANGHEGAN、PIQIGUANGONGNENG,PIFUDAMIANJIXISHOUKEYIZHIRENSIWANG。FANGXIANGANLEIHUIFAXINGYOUJIWUZHIAI,ERBENAN、LIANBENANDENGJINRURENTIKEYIZAOCHENGQUEYANGZHENG。YOUJIDANHUAHEWUKEZHIAI。YOUJILINHUAHEWUJIANGDIXUEYEZHONGDANJIANZHIMEIDEHUOXING,SHISHENJINGXITONGFASHENGGONGNENGZHANGAI。YOUJILIUHUAHEWUZHONG,DINONGDULIUCHUNKEYINQIBUSHI,GAONONGDUKEZHIRENSIWANG。HANYANGYOUJIHUAHEWUZHONG,XIRUGAONONGDUHUANYANGYIWANKEZHIRENSIWANG;BINGXIQUANDUIZHANMOYOUQIANGLIEDECIJI;WUCHUNKEYIYINQITOUTONG、OUTU、FUXIEDENG。

3.ZHILIJISHU

免费秒速赛车计划 HUIFAXINGYOUJIWUDEZHILIFANGFAZHUYAOYOU2LEI:YILEISHIHUISHOUFA。HUISHOUFASHITONGGUOWULIFANGFA,ZAIYIDINGWENDU、YALIXIA,YONGXUANZEXINGXIFUJIHEXUANZEXINGSHENTOUMODENGFANGFALAIFENLIHUIFAXINGYOUJIHUAHEWU(VOCs),ZHUYAOBAOKUOHUOXINGTANXIFU、BIANYAXIFU、LENGNINGFAHESHENGWUMOFADENG。LINGYILEISHIXIAOCHUFA。XIAOCHUFASHITONGGUOHUAXUEHUOSHENGWUFANYING,YONGGUANG、RE、CUIHUAJIHEWEISHENGWUDENGJIANGHUIFAXINGYOUJIWUZHUANHUAWEISHUIHEERYANGHUATAN,ZHUYAOBAOKUOREYANGHUA、CUIHUARANSHAO、SHENGWUYANGHUA、DIANYUNFA、DENGLIZITIFENJIEFA、GUANGFENJIEFADENG。

3.1HUOXINGTANXIFUFA

MUQIANWOGUODUIYUNONGDUJIAODIDEQIXIANGWURANWUDEJINGHUASHOUDUANZHUYAOWEIXIFUFA,YINGYONGHUOXINGTANDEQIANGXIFUXINGXIFUWURANWU,QIEDUIHUIFAXINGYOUJIWUZHILIANGNONGDUDEDONGTAIBIANHUAYOUZHUJIAOHAODEHUANCHONGDIAOJIEZUOYONG。CHANGYONGDEXIFUJIYOUDUOKONGTANCAILIAO、FENGWOZHUANGHUOXINGTAN、QIUZHUANGHUOXINGTAN、HUOXINGTANXIANWEI、XINXINGHUOXINGTANYIJIFENZISHAI、FEISHI、DUOKONGZHANTUKUANGSHI、HUOXINGYANGHUALVHEGUIJIAODENG。HUOXINGTANDUOCHENGFENMOZHUANGHUOKELIZHUANG,DABUFENQINGKUANGXIABUNENGZHIJIEYONGYUGEZHONGJINGHUASHEBEIZHONG,BIXUSHIHUOXINGTANJUYOUYIDINGXINGZHUANGHEZHICHENGQIANGDUCAINENGSHIYONG。HUOXINGTANJINGGUOTESHUDEGONGYICHULIHOU,NENGCHANSHENGFENGFUDEWEIKONGJIEGOU,ZHEXIERENYANKANBUDAODEWEIKONGNENGGOUYIKAOFENZILI,XIFUGEZHONGYOUHAIDEQITIHEYETIFENZI,CONGERDADAOJINGHUADEMUDE。HUOXINGTANXIFUGUOCHENGBAOKUOXIFUJINGHUAHERETUOZAISHENG。

XIFUJINGHUAGUOCHENGSHIJIANGHUIFAXINGYOUJIWUYOUPAIQIFENGJISONGRUXIFUCHUANG,HUIFAXINGYOUJIWUZAIXIFUCHUANGBEIXIFUJIXIFUERSHIQITIDEDAOJINGHUA,JINGHUAHOUDEQITIPAIXIANGDAQIJIWANCHENGJINGHUAGUOCHENG;RETUOZAISHENGGUOCHENGSHIDANGXIFUCHUANGNEIXIFUJISUOXIFUDEHUIFAXINGYOUJIWUDADAOYUNXUDEXIFULIANGSHI,GAIXIFUCHUANGYIJINGBUNENGZAIJINXINGXIFUCAOZUOERZHUANRUTUOFUZAISHENG。TUOFUZAISHENGJIYONGLAIZICUIHUADEREKONGQICHUISAOXIFUJI,SHIXIFUDEHUIFAXINGYOUJIWUTUOFUCHULAIDADAOSHIXIFUJIDEXIFUNENGLIZAISHENGDEMUDE。HUOXINGTANXIFUFASHIYONGYUDAFENGLIANG、DINONGDU、WENDUBUGAODEHUIFAXINGYOUJIWUZHILI。GAIFAGONGYICHENGSHU,XIAOGUOKEKAO,YIYUHUISHOUYOUJIRONGJI,YINCIBEIGUANGFANDIYINGYONGYUHUAGONG、PENQI、YINSHUA、QINGGONGDENGXINGYEDEHUIFAXINGYOUJIWURUBENLEI、TONGLEIDEZHILI。

ZAIGONGYEXIFUGUOCHENGZHONG,HUOXINGTANSHISHIYONGZUIWEIGUANGFANDEYIZHONGXIFUJI,DANTAYECUNZAIBUNAIGAOWEN,ZAISHIRUNDETIAOJIANXIABUNENGBAOCHIHENHAODEXIFUNENGLI,YIRAN,JIAOKUAIDADAOBAOHEXIFUERSHIQUXIAOYONG,XIFUJIXUDINGQIGENGHUANDEQUEDIAN;QICI,XIFUFAHUICHANSHENGERCIGUTIHUOYETIWURANWU。

3.2CUIHUARANSHAOFA

CUIHUARANSHAO”FAZHILIHUIFAXINGYOUJIWU,YICUIHUARANSHAODAITICHUANTONGDEHUOYANRANSHAO,JIANGDILERANSHAOWENDU,TIGAOLENENGLIANGLIYONGLV。LINGWAI,CUIHUARANSHAOCHANSHENGDERELIUWENDUSHIZHONG,WUXULENGQUEKONGQIDEXISHI,TIGAOLEREXIAO。ZHEZHONGFANGFADEBUZUZHICHUSHI,YOUDEQITIRANSHAOTIAOJIANFEICHANGKEKE,XUGAOWEN、GAOKONGHEGAOSHUIZHENGQIFENYA,YINCICUIHUAJIBIXUJUBEIJIAOGAODEHUOXING、GAOREWENDINGXINGHEJIAOGAODESHUIREWENDINGXING,YIJIYIDINGDEKANGZHONGDUNENGLI。ERTONGCHANGCUIHUAJIHUOXINGYUWENDINGXINGSHIXIANGMAODUNDE,LINGWAIGAIFADUIJIXIEQIANGDUYAOQIUYEJIAOGAO,YAOQIUNENGKANGCHONGSHUAHERECHONGJI。MUQIANYANJIUJIAODUODESHIPd、Pt、Rh、AuDENGGUIJINSHUCUIHUAJIHEJINSHUYANGHUAWUCUIHUAJI。CUIHUARANSHAOFACHULIHUIFAXINGYOUJIWUDEGONGYILIUCHENGRUTU1SUOSHI。

有機廢氣的危害及治理技術

免费秒速赛车计划 3.3SHENGWUMOFA 

按照傳統生物膜理論,生物法處理揮發性有機物一般要經歷以下步驟:①廢氣中的揮發性有機物首先與水接觸,并溶解于水中;②溶解于液膜中的有機污染物成分在濃度差的推動下進一步擴散到生物膜,進而被微生物捕獲并吸收;③微生物以揮發性有機物為能源或碳源進行生長代謝,從而將其分解為簡單無毒的無機物(如CO2和H2O)和低毒的揮發性有機物;④生物代謝產物一部分重新回到液相,一部分氣態物質(如CO2)脫離生物膜,通過擴散進入大氣。依據該理論,生物凈化有機氣體的速率主要取決于氣相和液相中揮發性有機物的擴散速率及生化反應速率。生物法具有設備簡單、投資少、運行費用低、無二次污染等優點,但也存在著反應裝置占地面積大、反應時間較長的缺點。

3.4XIANJINYANGHUAFANGFA

先進氧化方法(技術或流程,簡稱AOT或AOP)是指產生OH·過程,以及產生的OH·誘發一系列的OH·鏈反應,攻擊各種污染物及微生物,直至降解為CO2、H2O及無機鹽,實現零環境污染,零污染物排放。先進氧化方法是在不斷提高OH·的產生效率和應用效率的基礎上發展起來的。概括的說,能夠產生羥基自由基的工藝都可以進入高級氧化技術工藝的范疇,如臭氧(O3)氧化技術、過氧化氫(H2O2)氧化工藝、二氧化氯(ClO2)氧化工藝、紫外(UV)輻照工藝、超聲氧化工藝、微波工藝等。由于高級氧化工藝具有氧化性強、操作條件易于控制的優點,因此引起世界各國的重視,并相繼開展了該方向的研究與開發工作。

免费秒速赛车计划 DUIYUYOUJIQITIDEJINGHUACHULI,WULUNSHIGUANGFANCAIYONGDECHUANTONGCHULIFANGFA,HUANSHIXINKAIFADECHULIJISHU,DOUYAOKAOLVDAOYINGYONGDESHIXIAOXING。

MUQIAN,CHULETUIGUANGCHUANTONGGONGYIWAI,YINGZHONGDIANKAIFAXINDEJISHU,YIDADAOTIGAOQUCHUXIAOLV、JIANGDITOUZIYUNXINGFEIYONG,JIANSHAOERCIWURANDEMUDE。SUIZHUYOUJICHANPINDEDALIANGSHIYONG,HUIFAXINGYOUJIWUWURANYIYINQISHIJIEGEGUODEGAODUZHONGSHI,KONGZHIGAILEIWURANYICHENGWEIGEGUODEYIXIANGYIBURONGCIQIEKEBURONGHUANDERENWU。

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