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大乐透走势图

  • VOC废气处理技术有哪些
  • 本站编辑:杭州瑞茂环保技术有限公司发布日期:2018-08-08 10:37 浏览次数:

大乐透走势图DANGQIAN,VOCFEIQICHULIJISHUZHUYAOBAOKUOREPOHUAIFA、BIANYAXIFUFENLIYUJINGHUAJISHU、XIFUFAHEYANGHUACHULIFANGFADENG。

大乐透走势图At present, VOC waste gas treatment technology mainly includes thermal destruction, pressure swing adsorption separation and purification technology, adsorption and oxidation treatment methods.

YI、REPOHUAIFA

大乐透走势图1. Thermal damage method

REPOHUAIFASHIZHIZHIJIEHEFUZHURANSHAOYOUJIQITI,YEJIUSHIVOC,HUOLIYONGHESHIDECUIHUAJIJIAKUAIVOCDEHUAXUEFANYING,ZUIZHONGDADAOJIANGDIYOUJIWUNONGDU,SHIQIBUZAIJUYOUWEIHAIXINGDEYIZHONGCHULIFANGFA。

Thermal damage method refers to the direct and auxiliary combustion of organic gas, that is, VOC, or the use of appropriate catalysts to accelerate the chemical reaction of VOC, and ultimately to reduce the concentration of organic matter, so that it is no longer a harmless treatment.

JISHU|QIDAVOCFEIQICHULIJISHU

VOC waste gas treatment technology

大乐透走势图REPOHUAIFADUIYUNONGDUJIAODIDEYOUJIFEIQICHULIXIAOGUOBIJIAOHAO,YINCI,ZAICHULIDINONGDUFEIQIZHONGDEDAOLEGUANGFANYINGYONG。ZHEIZHONGFANGFAZHUYAOFENWEILIANGZHONG,JIZHIJIEHUOYANRANSHAOHECUIHUARANSHAO。ZHIJIEHUOYANRANSHAODUIYOUJIFEIQIDERECHULIXIAOLVXIANGDUIJIAOGAO,YIBANQINGKUANGXIAKEDADAO99%。ERCUIHUARANSHAOZHIDESHIZAICUIHUACHUANGCENGDEZUOYONGXIA,JIAKUAIYOUJIFEIQIDEHUAXUEFANYINGSUDU。ZHEIZHONGFANGFABIZHIJIERANSHAOYONGSHIGENGSHAO,SHIGAONONGDU、XIAOLIULIANGYOUJIFEIQIJINGHUADESHOUXUANJISHU。

Thermal destructive method has a good effect on the treatment of low concentration organic waste gas, so it has been widely used in the treatment of low concentration waste gas. This method is mainly divided into two types: direct flame combustion and catalytic combustion. Direct flame combustion has relatively high heat treatment efficiency for organic waste gas, and can reach 99% under normal conditions. Catalytic combustion refers to accelerating the rate of chemical reaction of organic waste gas under the action of catalytic bed. This method is less than direct combustion, and is the preferred technology for purification of organic waste gas with high concentration and low flow rate.

ER、XIFUFA

大乐透走势图Two, adsorption method

大乐透走势图YOUJIFEIQIZHONGDEXIFUFAZHUYAOSHIYONGYUDINONGDU、GAOTONGLIANGYOUJIFEIQI。XIANJIEDUAN,ZHEIZHONGYOUJIFEIQIDECHULIFANGFAYIJINGXIANGDANGCHENGSHU,NENGLIANGXIAOHAOBIJIAOXIAO,DANSHICHULIXIAOLVQUEFEICHANGGAO,ERQIEKEYICHEDIJINGHUAYOUHAIYOUJIFEIQI。SHIJIANZHENGMING,ZHEIZHONGCHULIFANGFAZHIDETUIGUANGYINGYONG。

Organic waste gas adsorption method is mainly suitable for low concentration and high flux organic waste gas. At this stage, the treatment method of this organic waste gas is quite mature, the energy consumption is relatively small, but the treatment efficiency is very high, and it can thoroughly purify the harmful organic waste gas. Practice has proved that this method is worthy of popularization and application.

大乐透走势图JISHU|QIDAVOCFEIQICHULIJISHU

VOC waste gas treatment technology

DANSHIZHEIZHONGFANGFAYECUNZAIYIDINGQUEXIAN,TAXUYAODESHEBEITIJIBIJIAOPANGDA,ERQIEGONGYILIUCHENGBIJIAOFUZA;RUGUOFEIQIZHONGYOUDALIANGZAZHI,ZERONGYIDAOZHIGONGZUORENYUANZHONGDU。SUOYI,SHIYONGCIFANGFACHULIFEIQIDEGUANJIANZAIYUXIFUJI。DANGQIAN,CAIYONGXIFUFACHULIYOUJIFEIQI,DUOSHIYONGHUOXINGTAN,ZHUYAOSHIYINWEIHUOXINGTANXIKONGJIEGOUBIJIAOHAO,XIFUXINGBIJIAOQIANG。

But this method also has some defects, it needs a large volume of equipment, and the process is more complex; if there is a large amount of impurities in the waste gas, it is easy to cause the workers to be poisoned. Therefore, the key to treating waste gas by this method is adsorbent. At present, the use of activated carbon in the treatment of organic waste gas by adsorption is mainly due to its fine pore structure and strong adsorption.

CIWAI,JINGGUOYANGHUATIEHUOCHOUYANGCHULI,HUOXINGTANDEXIFUXINGNENGJIANGHUIGENGHAO,YOUJIFEIQIDECHULIJIANGHUIGENGJIAANQUANHEYOUXIAO。

大乐透走势图In addition, the adsorption performance of activated carbon will be better after iron oxide or ozone treatment, and the treatment of organic waste gas will be more safe and effective.

201609261103164742.JPG

SAN、SHENGWUCHULIFA

Three. Biological treatment

CONGCHULIDEJIBENYUANLISHANGJIANG,CAIYONGSHENGWUCHULIFANGFACHULIYOUJIFEIQI,SHISHIYONGWEISHENGWUDESHENGLIGUOCHENGBAYOUJIFEIQIZHONGDEYOUHAIWUZHIZHUANHUAWEIJIANDANDEWUJIWU,BIRUCO2、H2OHEQITAJIANDANWUJIWUDENG。ZHEISHIYIZHONGWUHAIDEYOUJIFEIQICHULIFANGSHI。

大乐透走势图From the basic principle of processing, the use of biological treatment to treat organic waste gas is the use of microbial physiological processes to convert harmful substances in organic waste gases into simple inorganic substances, such as CO2, H2O and other simple inorganic substances. This is a harmless treatment of organic waste gas.

JISHU|QIDAVOCFEIQICHULIJISHU

大乐透走势图VOC waste gas treatment technology

YIBANQINGKUANGXIA,YIGEWANZHENGDESHENGWUCHULIYOUJIFEIQIGUOCHENGBAOKUO3GEJIBENBUZHOU:

Generally speaking, a complete biological treatment of organic waste gas includes 3 basic steps.

a)YOUJIFEIQIZHONGDEYOUJIWURANWUSHOUXIANYUSHUIJIECHU,ZAISHUIZHONGKEYIXUNSURONGJIE;

大乐透走势图A) organic pollutants in organic waste gas first contact with water and can be dissolved rapidly in water.

b)ZAIYEMOZHONGRONGJIEDEYOUJIWU,ZAIYETAINONGDUDIDEQINGKUANGXIA,KEYIZHUBUKUOSANDAOSHENGWUMOZHONG,JINERBEIFUZHEZAISHENGWUMOSHANGDEWEISHENGWUXISHOU;

B) the dissolved organic matter in the liquid film can gradually spread into the biofilm, and then be absorbed by the microorganism attached to the biofilm under the condition of low liquid concentration.

c)BEIWEISHENGWUXISHOUDEYOUJIFEIQI,ZAIQIZISHENSHENGLIDAIXIEGUOCHENGZHONG,JIANGHUIBEIJIANGJIE,ZUIZHONGZHUANHUAWEIDUIHUANJINGMEIYOUSUNHAIDEHUAHEWUZHI。

大乐透走势图C) Organic waste gases absorbed by microorganisms will be degraded during their own physiological metabolism and eventually converted into compounds that do not harm the environment.

SI、BIANYAXIFUFENLIYUJINGHUAJISHU

Four, pressure swing adsorption separation and purification technology

BIANYAXIFUFENLIYUJINGHUAJISHUSHILIYONGQITIZUFENKEXIFUZAIGUTICAILIAOSHANGDETEXING,ZAIYOUJIFEIQIYUFENLIJINGHUAZHUANGZHIZHONG,QITIDEYALIHUICHUXIANYIDINGDEBIANHUA,TONGGUOZHEIZHONGYALIBIANHUALAICHULIYOUJIFEIQI。

Pressure swing adsorption separation and purification technology is a characteristic of adsorption on solid materials by using gas components. In organic waste gas and separation purification equipment, the pressure of gas will change to a certain extent, and the organic waste gas can be treated by this pressure change.

JISHU|QIDAVOCFEIQICHULIJISHU

VOC waste gas treatment technology

大乐透走势图PSAJISHUZHUYAOYINGYONGDESHIWULIFA,TONGGUOWULIFALAISHIXIANYOUJIFEIQIDEJINGHUA,SHIYONGCAILIAOZHUYAOSHIFEISHIFENZISHAI。FEISHIFENZISHAI,ZAIXIFUXUANZEXINGHEXIFULIANGLIANGFANGMIANYOUYIDINGYOUSHI。ZAIYIDINGWENDUHEYALIXIA,ZHEIZHONGFEISHIFENZISHAIKEYIXIFUYOUJIFEIQIZHONGDEYOUJICHENGFEN,RANHOUBASHENGYUQITISHUSONGDAOXIAGEHUANJIEZHONG。ZAIXIFUYOUJIFEIQIHOU,TONGGUOYIDINGGONGXUJIANGQIZHUANHUA,BAOCHIBINGTIGAOXIFUJIDEZAISHENGNENGLI,JINERKERANGXIFUJIZAICITOURUSHIYONG,RANHOUZHONGFUSHANGBUZHOUGONGXU,XUNHUANFANFU,ZHIDAOYOUJIFEIQIDEDAOJINGHUA。

大乐透走势图The main application of PSA technology is physical method, through physical method to achieve the purification of organic waste gas, mainly using zeolite molecular sieves. Zeolite molecular sieve has certain advantages in two aspects of adsorption selectivity and adsorption capacity. At a certain temperature and pressure, the zeolite molecular sieve can absorb the organic components in the organic waste gas, and then transfer the remaining gas to the next step. After the adsorption of organic waste gas, it is converted through a certain process to maintain and improve the regenerative capacity of the adsorbent, and then the adsorbents can be reinvested again, and then repeated steps are repeated until the organic waste gas is purified.

大乐透走势图JINNIANLAI,GAIJISHUKAISHIZAIGONGYESHENGCHANZHONGYINGYONG,DUIYUQITIFENLIYOULIANGHAOXIAOGUO。GAIJISHUDEZHUYAOYOUSHIYOU:NENGYUANXIAOHAOSHAO、CHENGBENBIJIAODI、GONGXUCAOZUOZIDONGHUAJIFENLIJINGHUAHOUHUNHEWUCHUNDUBIJIAOGAO、HUANJINGWURANXIAODENG。SHIYONGGAIJISHUDUIYUHUISHOUHECHULIYOUYIDINGJIAZHIDEQITIXIAOGUOLIANGHAO,SHICHANGFAZHANQIANJINGGUANGKUO,CHENGWEIWEILAIYOUJIFEIQICHULIJISHUDEFAZHANFANGXIANG。

In recent years, the technology has been applied in industrial production and has good effect on gas separation. The main advantages of this technology are: low energy consumption, low cost, automation of process operation, high purity of mixture and small environmental pollution after separation and purification. The use of this technology is good for the recovery and treatment of gas with a certain value, the market has a broad prospects for development, and become the future direction of the development of organic waste gas treatment technology.