文档介绍：第22卷第4期
污
染
防
治
技
术
2 0 O
9年8月
POLLUTl0N CONTROL TECHNOLOGY
Aug.,2 0 O 9
高浓度含盐化工废水蒸发脱盐
回收处理的试验研究
,
谢敏3
(,江苏张家港215600;,
江苏张家港215600;,江苏张家港215600)
摘要:对双效蒸发器处理高浓度含盐化工废水进行了小规模试验,结果表明,采用双效蒸发器处理该废水的效果明
显,二次蒸汽重复利用,降低了处理成本, t。废水中COD。,的去除率可达95%以上,采用
两次蒸发分步结晶工艺,可将废水中的不同盐类全部回收利用,实现了变废为宝、资源再生的目的。
关键词:含盐废水;蒸发浓缩;氯化钠;羟基乙酸钠
中图分类号::x505
文献标识码:A
Test StudV
on
the
Treatment and Recoverv of Chemical
Wastewater
with High Salinity by EVaporation
DAI Yan2,
XIE Min3
( E增i加e一增舶.,厶d. Z矗口n鲋口g口愕,胁n伊u
2 1 5600,C^讥口;
^口倒c酱o,lg
En秽i,.o凡,nent口Z J】l如nitDri,lg
St口f幻,l,Z五Ⅱng声c曙口,lg,.№,195M
215600,C^￡r‘o;
,洒iog口昭E聊￡ro凡men训舶凡i￡o—ng‰如,劢on面i昭n昭,胁,炉“21 5600,傩in口)
Abstract:A 8mall一8cale
carried
the chemical
with high 8alinity by
indic8ted山at the remov8l eⅡ.ect
obviously which
dealed with
evapomtion。the second—time steam wa8阳一
utilized,the
w酗reduced, and ton“steam w酗used
eV印omte
per
averagely.
The remoVe mte of CODcr in
w88tewater托ached 95%,and dif玷托nt kind8 of s8hB
in
w船tewater
be
reclaimed
absolutely by adopting
evapo碍tion
crystallization c朋血,which will realize the
of changing
valuable聃weⅡa8 recycling
Key words:wastewater of high sali