24小时热门版块排行榜    

Znn3bq.jpeg
查看: 1037  |  回复: 5
当前只显示满足指定条件的回帖,点击这里查看本话题的所有回帖

奋斗吧少年

新虫 (小有名气)

[求助] 求助文献中一个单词 rejec 已有1人参与

NF can retain low relative molecular mass organism and high valent mineral salt , but to univalent mineral, its rejec is low(10%-80%)
最后一句中rejec  是什么意思,有这个单词么?还是应该是reject

[ 发自手机版 https://muchong.com/3g ]
回复此楼

» 猜你喜欢

» 本主题相关价值贴推荐,对您同样有帮助:

学习 努力
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

baoshanqiu

至尊木虫 (著名写手)

【答案】应助回帖

★ ★ ★ ★ ★
感谢参与,应助指数 +1
奋斗吧少年: 金币+5, 有帮助 2015-10-21 17:03:39
应是rejection 截留率
原文如下:
Nanofiltration Membrane and Its Application
CAO Guo-ping,ZHANG Xue-feng(College of Architectural Engineering,Hebei University of Science and Technology,Tangshan 063009,China)  
The appearance of nanofiltration membrane(NF) in 1980s fills in the gap between reverse osmosis(RO) and ultra-filtration.Normally,the molecular mass cutoff(MWCO) range is 200~(1 000,) and its relative pore size is 1~(3 nm,) so this membrane is called as NF.NF can retain low relative molecular mass organism and high-valent mineral salt,such as MgSO_4,but to univalent mineral,its rejection is low(10%~80%),that is to say,univalent mineral salt can permeate NF freely,which makes the difference of permeation pressure between the two sides of the membrane due to different ion concentration,is much lower than that of RO membrane.In the same flux,NF requires much lower driver pressure than RO membrane.The operation pressure of NF is(0.5~)(1.5 MPa.) The particular separating property of NF confirms its status in water softening and low relative molecular mass organism purification and concentration.Furthermore,NF can effectively remove many middle molecular mass solutes,such as the pre-substance of side-products of disinfection,residual pesticide,some pigment.So NF is widely used in water purification and decoloring.

» 本帖已获得的红花(最新10朵)

5楼2015-10-21 04:46:44
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
查看全部 6 个回答

dowinlee

捐助贵宾 (初入文坛)


2楼2015-10-20 09:15:55
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

奋斗吧少年

新虫 (小有名气)

引用回帖:
2楼: Originally posted by dowinlee at 2015-10-20 09:15:55
少了个字母t吧

文献上没有  不知道什么情况

[ 发自手机版 https://muchong.com/3g ]
学习 努力
3楼2015-10-20 09:51:32
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖

dowinlee

捐助贵宾 (初入文坛)


文献弄错了吧,这样也讲的通啊,报废之类的类似的意思吧

发自小木虫Android客户端
4楼2015-10-20 10:33:41
已阅   回复此楼   关注TA 给TA发消息 送TA红花 TA的回帖
最具人气热帖推荐 [查看全部] 作者 回/看 最后发表
[考博] 华师大读博 +3 xq83 2026-04-22 5/250 2026-04-22 10:42 by xq83
[教师之家] 又一批高校组建人工智能学院 师资行吗 不是骗人吗 +5 yexuqing 2026-04-19 5/250 2026-04-22 10:01 by easeheart
[考研] 0854求调剂 +24 门路摸摸 2026-04-15 28/1400 2026-04-22 09:54 by Sy199704!
[论文投稿] 急需审稿人!!! +3 陆小果画大饼 2026-04-21 3/150 2026-04-21 23:54 by jzy_123456
[考博] 申博/考博 +4 啃面包的小书虫 2026-04-17 8/400 2026-04-21 16:26 by 啃面包的小书虫
[论文投稿] 期刊推荐 +3 材料研究生 2026-04-15 5/250 2026-04-20 16:02 by 豆豆7758
[论文投稿] 有没有接收比较快的sci期刊呀,最好在一个月之内的,研三孩子求毕业 20+4 之护着 2026-04-16 7/350 2026-04-20 15:45 by 豆豆7758
[考研] 337求调剂 +3 jyz04 2026-04-18 3/150 2026-04-20 12:24 by 研可安
[考博] 申博 +3 Xyyx. 2026-04-18 3/150 2026-04-20 10:44 by YuY66
[考博] 湖南大学刘巧玲课题组2026年第二批次博士研究生招生信息 +3 南风观火 2026-04-18 5/250 2026-04-20 10:13 by 南风观火
[考研] 求计算机方向调剂 +3 Toffee2 2026-04-16 6/300 2026-04-19 22:37 by ll叶
[考研] 294求调剂 +8 淡然654321 2026-04-17 9/450 2026-04-19 19:51 by Equinoxhua
[考研] 304求调剂 +8 castLight 2026-04-16 8/400 2026-04-19 17:14 by 中豫男
[考研] 求调剂 +6 苦命人。。。 2026-04-18 7/350 2026-04-19 16:27 by 中豫男
[考研] 300求调剂 +12 橙a777 2026-04-15 12/600 2026-04-18 23:51 by 路病情
[考研] 收到复试调剂但是去不了 +8 小蜗牛* 2026-04-16 8/400 2026-04-18 11:15 by zixin2025
[考研] 260求调剂 +4 Zyt1314520.. 2026-04-17 5/250 2026-04-18 08:28 by babysonlkd
[考研] 急需调剂 +9 绝不放弃22 2026-04-15 10/500 2026-04-18 08:09 by chixmc
[有机交流] 二苯甲酮酸类衍生物 50+3 小白爱主人 2026-04-17 6/300 2026-04-17 18:47 by kf2781974
[考研] 322求调剂 +6 tekuzu 2026-04-17 6/300 2026-04-17 13:48 by Espannnnnol
信息提示
请填处理意见