一种​海水​淡化​应用​中​超​滤膜​的​清洗​方法

源语言标题
(CN107008155) 一种​海水​淡化​应用​中​超​滤膜​的​清洗​方法
公开号/公开日
CN107008155 A 2017-08-04 [CN107008155] / 2017-08-04
申请号/申请日
2017CN-0408376 / 2017-06-02
发明人
YANG XINGTAO;LI KE;ZHAO HONGWU;WAN PENG;LI WEI;WANG CHENGLONG;
申请人
;
主分类号
IPC分类号
B01D-061/14B01D-065/02B01D-065/06C02F-001/44C02F-103/08
摘要
(CN107008155) 本​发明​公开​了​种​海水​淡化​应用​中​超​滤膜​的​清洗​方法,包括​下​步骤:水​冲洗​或​化学​加强​反​洗;酸洗;浸泡;水​反​洗​或​化学​加强​反​洗;酸洗​溶液​采用​质量​分数​1%的​柠檬酸​溶液​或​质量​分数​为​2‑10%的​草酸​溶液,所​述​酸洗​溶液​溶液​中​还​含有​EDTA,该​方法​能够​将​超​滤膜​清洗​时间​缩短​至​离线​清洗​时间​的​三分​之​甚至​更短,以​短时​间的​化学​维护​达到​离线​清洗​的​效果。
地址
代理人
代理机构
;
优先权号
2017CN-0408376 2017-06-02
主权利要求
(CN107008155) 1. Ultra cleaning of the filter application A sea water desalinizing method, characterized in, comprises the following steps: The backwash chemical strengthening or water (1) rinse; Pickling (2): 1% solution of citric acid pickling solution employs a mass fraction or mass fraction of from 2-10% of oxalic acid solution, preferably, the mass fraction of 2% oxalic acid solution; water temperature 30-35 °C; acid wash flow rate was 150-200m3 /h,acid wash cycle time of 1-2h; Soak (3): cycle has finished, the soaking time 1-2h, for example 1.5h, bathe the solution is a pickling solution; The backwash chemical strengthening backwash or water (4). 2. A desalinization applications ultra filtration membrane cleaning method according to claim 1, characterized in, chemical strengthening the backwash flux 250LMH. 3. Ultra cleaning of the filter membrane desalinization application method according to claim 1, characterized in, pickling, control ph=2. 4. Ultra cleaning of the filter membrane applied sea water desalinizing method according to claim 1, characterized in, pickling solution further comprises EDTA. 5. Ultra cleaning of the filter membrane desalinization application method according to claim 1, characterized in, EDTA acid wash solution in an amount of 100 ppm.
法律状态
(CN107008155) LEGAL DETAILS FOR CN107008155  Actual or expected expiration date=2037-06-02    Legal state=ALIVE    Status=PENDING     Event publication date=2017-06-02  Event code=CN/APP  Event indicator=Pos  Event type=Examination events  Application details  Application country=CN CN201710408376  Application date=2017-06-02  Standardized application number=2017CN-0408376     Event publication date=2017-08-04  Event code=CN/A  Event type=Examination events  Published application  Publication country=CN  Publication number=CN107008155  Publication stage Code=A  Publication date=2017-08-04  Standardized publication number=CN107008155     Event publication date=2017-08-04  Event code=CN/PB01  Event type=Examination events  Publication
专利类型码
A
国别省市代码
若您需要申请原文,请登录。

最新评论

暂无评论。

登录后可以发表评论

意见反馈
返回顶部