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怎么利用设备处理制药工业废水

日期: 2019-10-09 作者: 环诺

一、制药工业废水现状

 

JINNIANLAI,WOGUOZHIYAOXINGYEFAZHANXUNSU,QIZHONGYIHECHENGZHIYAOQIYEFAZHANYOUWEIXUNMENG,BINGYIJIANLIGUIMOHUACHANYEYUANXINGCHENGJIYUEHUA、XIANDAIHUAFANGSHISHENGCHAN。YOUYUZHIYAOXINGYEDECHANPINDUOWEIHECHENGLEIZHIYAO,XIANGYINGHECHENGLEIZHIYAOYIHUAXUEFANGFAZHIBEIWEIZHU,QIYUANLIAOCHENGFENFUZA(DUOWEIGAOFENZIYOUJIWU)QIEHUAXUEFANYINGDUOBANSUIYOUFUFANYING,ZHISHIHECHENGLEIZHIYAOSHENGCHANFEISHUILAIYUANFUZA、WURANWUZHONGLEIDUO。TONGSHI,ZHIYAOSHENGCHANFEISHUIXIANGBIYUYIBANGONGYEFEISHUI,QIYOUYIDINGDETESHUXING,JIDANGGENGHUANFANYINGYUANLIAOSHI,MUYEZHIJIEGENGHUAN,DAOZHIZHIYAOSHENGCHANFEISHUISHUNSHISHUIZHIXIANGYINGNONGDUJIZENG,DUICHULIGONGYICHONGJIFUHEJIAODA。

 

二、制药废水的特点

(1)YOUYUHECHENGCHANWUSHENGCHANLIUCHENGZHANG、FANYINGFUZA、FUFANYINGDUO(XIANGYINGFUCHANWUDUO)、FANYINGYUANLIAOCHANGWEIRONGJILEIWUZHIHUOHUANZHUANGJIEGOUDEGAOFENZIYOUJIHUAHEWU,ZHISHIFEISHUIZHONGDEWURANWUCHENGFENFUZA;(2)ZHIYAOSHENGCHANGUOCHENGZHONGDALIANGSHIYONGDEGEZHONGHUAXUEYUANLIAO,YOUYUDUOBUFANYING、FUFANYING、YUANLIAOLIYONGLVDIDENGWENTI,DABUFENHUAXUEYUANLIAOJIFANYINGFUCHANWUSUISHENGCHANFEISHUIPAIFANG,ZHISHIFEISHUIZHONGWURANWUHANLIANGJIGAO;(3)CODZHIJIGAO,YOUYUZHIJIEGENGHUANMUYEYIJIHUAXUEHECHENGFANYINGBUWANQUANERCHANSHENGDEDALIANGFUCHANWUHUOSHENGCHANGUOCHENGZHONGSHIYONGDEFUZHUYUANLIAORONGJI、RONGZHIJINRUFEISHUIXITONG,ZHISHICODZHIJIGAO;(4)FEISHUIZHONGCUNZAIDALIANGDUIWEISHENGWUYOUDUYOUHAIDEWUZHI,RUXIAOJIHUAHEWU、YOUJIDANHUAHEWU、LUSUHUAHEWU、FANGXIANGTINGLEIHUAHEWUYIJIJUYOUSHAJUNZUOYONGDEYINLIZIBIAOMIANHUOXINGJIHUOFENSANJIDENG;

(5)SHENGWUKEJIANGJIEXINGCHA,ZHIYAOFEISHUIZHONGDEYOUJIWURANWUDADUOSHUYUSHENGWUNANYIJIANGJIEDEGAOFENZIYOUJIWU,RUXIAOJIHUAHEWU、LIUMIJIFANLEIHUAHEWU、OUDANHUAHEWU、LUSUHUAHEWU、ZAHUANHUAHEWU、MILEIHUAHEWUDENG;(6)MOUXIEZHIYAOCHANWUSHENGCHANGUOCHENGZHONGXUGAONONGDUHANYANSHUIZUOWEIFUZHUYUANLIAOHUORONGJI,CONGERSHIFEISHUIZHONGYANFENHANLIANGGAO,ERGAONONGDUDEHANYANFEISHUIDUIWEISHENGWUSHENGZHANGYOUJIAOQIANGDEYIZHIZUOYONG;(7)FEISHUISEDUGAO,YOUYUFEISHUIZHONGHANYOUMOUXIETEDINGDEWURANWUZHIZHISHIFEISHUISEDUJIAOGAO,TONGSHI,YOUSEFEISHUIZUAIGUANGXIANZAIFEISHUIZHONGTONGXING,CONGERYIZHISHUISHENGSHENGWUDESHENGZHANG。

 

三、处理制药废水的技术方案

高COD高盐度制药废水MVR蒸发处理技术原理主要包括三个部分:
第一部分为前端处理,即反渗透膜处理。制药工业废水经预热器加热、浓缩处理,加热提升至MVR蒸发器中所需的温度,浓缩度则由浓度监测器控制。同时,提升的温度差、浓缩度依据制药工业废水的物理、化学性质决定,并由PLC系统自动控制;第二部分为中间处理,即MVR处理。通过泵将预热器加热、浓缩处理的制药工业废水引入到MVR蒸发器中,在热交换器中,利用蒸汽对制药工业废水进行循环加热、蒸发、浓缩等处理,得到的蒸馏水回流到预热器中,以用于预热原液;得到的浓缩液和蒸汽则进入液气分离器中,通过液气分离器,分离出的蒸汽进入压缩机内,而分离出的浓缩液则被直接回流至收集罐中,对浓缩液进行处理可回收其中的有用物质;第三部分为后端处理,即固液分离处理。当MVR蒸发处理的饱和浓缩液满足一定的条件时(饱和度、粘稠度等),PLC控制系统将向固液分离器发出指令,阀门自动打开,浓缩液流入恒温结晶器内。饱和浓缩液经恒温结晶器处理,析出固体,实现固体与液体的分离。最终,通过循环使用经压缩、升温、升压的二次蒸汽,实现对制药工业废水中有用物质的回收利用和制药工业废水的“零排放”。

 

四、MVR蒸发器的特点

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