有机化工废气处理工艺简析
YOUJIHUAGONGFEIQISHIDAQIWURANYUANZHONGDEYIZHONGZHONGYAOCHENGFEN,BUTONGDEHUAGONGQIYEYINQISHENGCHANCHANPINYIJIJIAGONGGONGYIBUTONG,SUOCHANSHENGDEFEIQIZHONGLEIHEXINGZHIYESHIBUTONGDE。YIBANSHIYOUYURANSHAOGUOLUSUOCHANSHENGDEYANCHENYIJIJIAGONGGUOCHENGZHONGSUOCHANSHENGDEFEIQI。YOUJIHUAGONGFEIQIYINQITESHUXING,YIBANJUYOURUXIATEDIAN。
有机化工废气特点
1、排放物大多都有刺激性或腐蚀性。
RUERYANGHUALIU、DANYANGHUAWU、LVQI、FUHUAQINGDENGQITIDOUYOUCIJIXINGHUOFUSHIXING,YOUQIYIERYANGHUALIUPAIFANGLIANGZUIDA,ERYANGHUALIUQITIZHIJIESUNHAIRENTIJIANKANG,FUSHIJINSHU、JIANZHUWUHEDIAOSUDEBIAOMIAN,HAIYIYANGHUACHENGLIUSUANYANJIANGLUODAODIMIAN,WURANTURANG、SENLIN、HELIU、HUBO。1、YIRAN、YIBAOQITIJIAODUO。RUDIFEIDIANDETONG、QUAN、YIJUHEDEBUBAOHETINGDENG,DALIANGYIRAN、YIBAOQITIRUBUCAIQUSHIDANGCUOSHI,RONGYIYINQIHUOZAI、BAOZHASHIGU,WEIHAIJIDA。
2、废气中浮游粒子种类多、危害大。
化工生产排除的浮游粒子包括粉尘、烟气、酸雾等,种类繁多,对环境的危害较大。特别当浮游粒子与有害气体同时存在时能产生协同作用,对人的危害更为严重。
HUAGONGFEIQIDECHULISHOUXIANDEQUEDINGQIFEIQIZHONGDEZHUYAOCHENGFEN,GENJUQIZHONGCHENGFENZHIDINGBUTONGDEGONGYISHIHUAGONGFEIQICHULIDESHOUYAOGUANJIAN。MUQIANZHILIFEIQIDEFANGFAHENDUO,DANSHIMEIYOUDANYIFANGFAKEYIWANQUANCHULIDELE,YINWEIMEIZHONGGONGYIDOUJUYOUZIJIDUTEDEYOUSHIJIQUEDIAN,YINCIMUQIANHUAGONGFEIQICHULIYIBANSHIJIGEGONGYIZUHELAICHULI。
有机化工废气处理几种常用的处理方法及利弊分析:
1)燃烧法
RANSHAOFAZHUYAOYOUGENJURANSHAODEWENDUJIFUZHUJIEZHIBUTONGYOUFENWEIZHIJIERANSHAOFAHECUIHUARANSHAOFALIANGZHONG。
催化燃烧法较适合于高浓度、小风量化工废气的净化,在处理低浓度的废气时,由于要维持300~400℃的催化燃烧温度,需借助于活性炭吸附等浓缩工艺来提高废气的燃烧热值,但化工废气中的水气、油污及颗粒物易引起活性炭吸附容量下降及催化剂中毒失活等问题,使得该方法的推广和使用在一定程度上受到了限制。
ZHIJIERANSHAOFASHITOUJIAFUZHURANLIAOYUHUAGONGFEIQIYIQISONGRUFENSHAOLURANSHAO,ZHIJIEFENSHAOGONGYICHENGSHU,KONGZHIYIDINGDEWENDUTIAOJIANXIAWURANWUQUCHUXIAOLVGAO,FENSHAOCHEDI,DANZAISHIYONGGUOCHENGZHONGYIBANHUIYOUYIXIAWENTI:
①RUOFENSHAOHANLV、XIUDAIYOUJIWUHEFANGTINGLEIWUZHISHIJIYICHANSHENGEREYINGLEIQIANGZHIAIWUZHI,YOUQIZAIFENSHAOLUQIDONGHEGUANBIGUOCHENGZHONGGENGYICHANSHENG,WEIBIMIANEREYINGLEIWUZHICHANSHENG,XUTIGAORANSHAOWENDUZAI1200℃YISHANG,RUOBAOCHIRUCIGAODERANSHAOWENDUBUJINYUNZHUANFEIYONGGAO,ERQIEDUIFENSHAOLUDEYAOQIUYEDADATIGAO。
②FENSHAOHANLVDAIYOUJIWUSHIHUICHANSHENGLVHUAQINGFUSHIWENTI,YOUQISHIZAIGAOWENZHUANGTAIXIA,LVHUAQINGDEFUSHIXINGNENGDADAZENGQIANG,BUJINDUIGUANDAOCUNZAIFUSHI,GENGYANZHONGDESHIHUIYINQIFENSHAOLUDEFUSHI。
③FENSHAOSHICUNZAIBAOZHADEQIANZAIWEIXIAN,YOUQISHIYIHUIFAXINGKERANQITI,RUODADAOQIBAOZHAJIXIANYUMINGHUOZEYOUKENENGYINQIBAOZHA。
LINGWAI,RUOFEIQIZHONGHANYOULUSU、DANYUANSUHELIUYUANSUDEQINGKUANGXIA,CAIYONGRANSHAOFAJIYICHANSHENGERCIWURANWUZHIEREYING、DANYANGHUAHEWUHELIUYANGHUAHEWU。
2)氧化法
GAIFANGFAZHUYAOCAIYONGTOUJIALV、CHOUYANG、GUOYANGHUAQING、GAOMENGSUANJIADENGQIANGYANGHUAJILAIPOHUAIWURANWUFENZI,JUYOUFANYINGKUAI,CHULIZHUANGZHIJIANDANDENGYOUDIAN。QIQUEDIANSHIJINGHUAXIAOLVBUGAO,YANGHUAJITOUJIALIANGNANYIKONGZHI。
3)吸收法
LIYONGWURANWUZHIDEWULIHEHUAXUEXINGZHI,SHIYONGSHUIHUOHUAXUEXISHOUYEDUIHUAGONGFEIQIJINXINGXISHOUQUCHUDEFANGFA。GAIFANGFAZAISHEJICAOZUOHELIDEQINGKUANGXIAQUCHUXIAOLVHENGAO,YUNZHUANGUANLIFANGBIAN,DANDUISHEBEIJIYUNXINGGUANLIYAOQIUJIGAO,ERQIEZHIYOUNENGRONGJIEYUXISHOUYEHUONENGYUXISHOUYEFANYINGDEWURANWUCAINENGBEIYOUXIAOQUCHU。
4)吸附法
GAIFANGFASHIDANGWURANWUZHITONGGUOZHUANGYOUXIFUJI(RUHUOXINGTAN、SHUSHUIFENZISHAIDENG)DEXIFUTASHI,LIYONGGAIXIFUJIDUIWURANWUDEQIANGXIFULI,CONGERDADAOJINGHUAFEIQIDEMUDE。GAIFANGFASHEBEIJIANDAN,QUCHUXIAOGUOHAO,DUOYONGYUJINGHUAGONGYIDEMOJICHULI。GAIFANGFAQUEDIANSHIDUIGAONONGDUHUAGONGFEIQICHULIXIAOLVDI、ZHANDIMIANJIDA、QIZUDA、XIFUJIXUJINGCHANGGENGHUANHUOZAISHENGDENGQUEDIAN,ERQIEXIFUJITUOFUHOUDEQITINANYUSHOUJIERZUIZHONGYOUPAIHUIDAQIZHONG,SHIYIZHONGBUCHEDIDEJIEJUETUJING。
5)生物法
SHENGWUFASHIJINNIANLAIYANJIUJIAODUODEYIZHONGCHULIGONGYI,GAIFANGFAZUITUCHUDEYOUDIANSHICHULICHENGBENDILIAN、JIBENWUERCIWURAN。SHENGWUFASUIRANZAIJINGHUADINONGDUYOUJIWURANWUSHIXIAOGUOMINGXIAN,JUYOUNENGHAODIDEYOUDIAN,DANCUNZAIQIZUDA、JIANGJIESULVMAN、SHEBEITIJIPANGDA、YISHOUWURANWUNONGDUJIWENDUDEYINGXIANG,ERQIEGAIFAJINSHIYONGYUQINSHUIXINGJIYISHENGWUJIANGJIEWUZHIDECHULI,DUISHUSHUIXINGHENANSHENGWUJIANGJIEWUZHIDECHULIHAICUNZAIYIDINGNANDU。