Article(id=1242133676067205734, tenantId=1146029695717560320, journalId=1146031591421210625, issueId=1242133665061347861, articleNumber=null, orderNo=12, doi=10.3981/j.issn.1000-7857.2015.14.007, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1430582400000, receivedDateStr=2015-05-03, revisedDate=1432656000000, revisedDateStr=2015-05-27, acceptedDate=null, acceptedDateStr=null, onlineDate=1439535171383, onlineDateStr=2015-08-14, pubDate=1438012800000, pubDateStr=2015-07-28, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1439535171383, onlineIssueDateStr=2015-08-14, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1774077346092, creator=sys-migrate, updateTime=1774077346092, updator=sys-migrate, issue=Issue{id=1242133665061347861, tenantId=1146029695717560320, journalId=1146031591421210625, year='2015', volume='33', issue='14', pageStart='1', pageEnd='112', issueExtLink='null', onlineDate='null', pubDate='1438012800000', pubDateStr='2015-07-28', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=3, issueType=-1, specialIssue=null, createTime=1774077343475, creator='sys-migrate', updateTime=1774077343475, updator='sys-migrate', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=41, endPage=45, ext={EN=ArticleExt(id=1242133688138412700, articleId=1242133676067205734, tenantId=1146029695717560320, journalId=1146031591421210625, language=EN, title=Cellulose triacetate forward osmosis membrane for emergency water-bag, columnId=1150494642224591153, journalTitle=Science & Technology Review, columnName=Exclusive, runingTitle=null, highlight=null, articleAbstract=The emergency water-bag is a gadget for supplying drinking water under emergent situations. The preparation and the performance of the cellulose triacetate (CTA) forward osmosis (FO) membrane and the research progress of the emergency water-bag made of the CTA membrane are studied in this paper. The water flux and the rejection performance of the heavy metal ions of the emergency water-bag are tested in the homemade water. With this CTA membrane, a FO water flux of 8.77 L/(m2 ·h) and J s /J w of 0.56 g/L are obtained under a standard test condition using 0.5 mol/L NaCl as the draw solution and the deionized water as the feed. The water-bag containing the glucose solution can draw 180 g water in the water-bag from the surface water sample and this water processing capacity can meet the water demand to sustain life. The rejection rate of the heavy metal with the hydrated ion radius larger than 100 pm can reach 95%, and the concentration of Pb(II), Cr(III), and Hg(II) in the water-bag is found to be lower than the National drinking water standard (GB5749—2006) . The As(III) concentration in the produced water is higher than the standard, because the radius of the hydrated As(III) is less than 65 pm. Further improvement in the FO membrane dense layer is required to remove micro-particles at a high rate., authors=LI Chunxia1 , ZHAO Baolong2 , SONG Jianfeng2 , LI Xuemei2 , HE Tao2 , authorsList=LI Chunxia, ZHAO Baolong, SONG Jianfeng, LI Xuemei, HE Tao, authorCompany=1. School of Medicine, Shanghai Jiao Tong University, Shanghai 200025, China;2 ·h),驱动溶质反向扩散比J s /J w 约为0.56 g/L。以一定浓度葡萄糖为汲取液时,经5 h 处理水袋可得到约180 g 水,可满足人体维持生命所需的饮水量。选取Pb、Cr、Hg、As 4 种典型的水体污染重金属为评价元素,渗透结果表明,该膜对半径尺寸在100 pm 以上的粒子具有比较理想的截留性能,达到95%以上,Pb(II),Cr(III),Hg(II)3 种重金属的处理效果能达到《GB5749—2006 生活饮用水卫生标准》的要求,但是对于As(III)这种水合半径小于65 pm 的离子其截留率较低,因此,膜材料皮层的致密性还需要进一步提高。, authors=李春霞1 , 赵宝龙2 , 宋健峰2 , 李雪梅2 , 何涛2 , authorsList=李春霞, 赵宝龙, 宋健峰, 李雪梅, 何涛, authorCompany=1. 上海交通大学医学院, 上海200025;
科技导报
| 专题论文 2015, 33(14): 41-45
正渗透应急水袋膜材料制备
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李春霞1 , 赵宝龙2 , 宋健峰2 , 李雪梅2 , 何涛2
作者信息
1. 上海交通大学医学院, 上海200025;
通讯作者:
何涛(通信作者),研究员,研究方向为高性能膜制备及应用技术,电子信箱:het@sari.ac.cn
Cellulose triacetate forward osmosis membrane for emergency water-bag
Affiliations
出版时间: 2015-07-28
doi: 10.3981/j.issn.1000-7857.2015.14.007
文章导航
应急水袋是一种可以就地从不可饮用的水源中及时、有效得到饮用水的生命救援工具。本文研究了三醋酸纤维素(CTA)正渗透膜材料的制备,以及用于制备应急水袋的研究进展,并对水袋的汲水功能和重金属离子截留效果进行测试。结果表明,以0.5 mol/L NaCl 为驱动液和去离子水作进料液的测试条件下,膜水通量达到8.77 L/(m2 ·h),驱动溶质反向扩散比J s /J w 约为0.56 g/L。以一定浓度葡萄糖为汲取液时,经5 h 处理水袋可得到约180 g 水,可满足人体维持生命所需的饮水量。选取Pb、Cr、Hg、As 4 种典型的水体污染重金属为评价元素,渗透结果表明,该膜对半径尺寸在100 pm 以上的粒子具有比较理想的截留性能,达到95%以上,Pb(II),Cr(III),Hg(II)3 种重金属的处理效果能达到《GB5749—2006 生活饮用水卫生标准》的要求,但是对于As(III)这种水合半径小于65 pm 的离子其截留率较低,因此,膜材料皮层的致密性还需要进一步提高。
应急水袋
/
正渗透
/
汲水量
/
CTA 膜
/
重金属截留
The emergency water-bag is a gadget for supplying drinking water under emergent situations. The preparation and the performance of the cellulose triacetate (CTA) forward osmosis (FO) membrane and the research progress of the emergency water-bag made of the CTA membrane are studied in this paper. The water flux and the rejection performance of the heavy metal ions of the emergency water-bag are tested in the homemade water. With this CTA membrane, a FO water flux of 8.77 L/(m2 ·h) and J s /J w of 0.56 g/L are obtained under a standard test condition using 0.5 mol/L NaCl as the draw solution and the deionized water as the feed. The water-bag containing the glucose solution can draw 180 g water in the water-bag from the surface water sample and this water processing capacity can meet the water demand to sustain life. The rejection rate of the heavy metal with the hydrated ion radius larger than 100 pm can reach 95%, and the concentration of Pb(II), Cr(III), and Hg(II) in the water-bag is found to be lower than the National drinking water standard (GB5749—2006) . The As(III) concentration in the produced water is higher than the standard, because the radius of the hydrated As(III) is less than 65 pm. Further improvement in the FO membrane dense layer is required to remove micro-particles at a high rate.
emergency water-bag
/
forward osmosis
/
water flux
/
cellulose triacetate membrane
/
heavy metal rejection
李春霞, 赵宝龙, 宋健峰, 李雪梅, 何涛.
正渗透应急水袋膜材料制备.
科技导报,
2015
, 33
(14)
: 41
-45
.
DOI: 10.3981/j.issn.1000-7857.2015.14.007
LI Chunxia, ZHAO Baolong, SONG Jianfeng, LI Xuemei, HE Tao.
Cellulose triacetate forward osmosis membrane for emergency water-bag[J].
Science & Technology Review ,
2015
, 33
(14)
: 41
-45
.
DOI: 10.3981/j.issn.1000-7857.2015.14.007
2015年第33卷第14期
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文章信息
doi: 10.3981/j.issn.1000-7857.2015.14.007
接收时间：2015-05-03
首发时间：2015-08-14
出版时间：2015-07-28
收稿日期：2015-05-03
修回日期：2015-05-27
通讯作者:
何涛(通信作者),研究员,研究方向为高性能膜制备及应用技术,电子信箱:het@sari.ac.cn
https://castjournals.cast.org.cn/joweb/kjdb/CN/10.3981/j.issn.1000-7857.2015.14.007
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2种不同金属材料的力学参数
科 属数 种数 占总种数比例 属 种数 占总种数比例 鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78 小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39 多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39 红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87 小菇属 Mycena 11 5.26 光柄菇属 Pluteus 5 2.39 红菇属 Russula 17 8.13 栓菌属 Trametes 5 2.39
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