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Elucidation of Dynamics in Advanced Separation of Soft Colloid

软胶体高级分离动力学的阐明

基本信息

批准号：
16360382
负责人：
IRITANI Eiji
金额：
$ 9.47万
依托单位：
Nagoya University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (B)
财政年份：
2004
资助国家：
日本
起止时间：
2004 至 2006
项目状态：
已结题

项目摘要

In recent years, particle-fluid separation such as filtration, expression, sedimentation and centrifugation is becoming widely accepted in such diversified fields as the biotechnology, biomass industry, functional food, biomedicine, living organism. Therefore, development of advanced separation technology for soft colloids such as microorganism, gel particle, emulsion, biomacromolecule, agglomerated particle, which are deformable and difficult-to-separate particles, is strongly desired.The main purpose of this research is to clarify the dynamics of separation of soft colloids. Filtration, expression, sedimentation and centrifugation were conducted using microorganism, hydrogel, emulsion as test sample. We have ascertained separation behaviors, deformation characteristic of particles and the properties of gelatinous aggregates of particles (cake and sediment) which had a significant influence on separating function. It was revealed that the filter cake and sediment composed of soft colloids have extremely high compressibility. It was also shown that the cake and sediment of soft colloids exhibited the porosity which was less than hexagonal close packing of undistorted spheres because of the deformation of the soft particles under the action of the solid compressive pressure. Consequently, it is preferred that separation of soft colloids is conducted under the relatively low pressure since the increase in the pressure does not necessarily lead to the improvement of the separation properties. These findings provide a valuable information for design of optimum operation and development of novel separation technology, and will be greatly contributed to advancement of diverse fields associated with separation of soft colloids.

近年来，诸如过滤、压榨、沉降和离心的颗粒-流体分离在诸如生物技术、生物质工业、功能性食品、生物医学、活生物体的多样化领域中变得被广泛接受。因此，对微生物、凝胶颗粒、乳状液、生物大分子、团聚颗粒等易变形、难分离的软胶体的先进分离技术的研究具有重要意义。以微生物、水凝胶、乳液为供试品，进行过滤、表达、沉降和离心。确定了对分离效果有重要影响的颗粒的分离行为、颗粒的变形特性以及颗粒的凝胶状聚集体（饼和沉积物）的性质。结果表明，滤饼和沉积物由软胶体组成，具有很高的压缩性。由于软质颗粒在固体压应力作用下发生变形，软质胶体的滤饼和沉淀物呈现出小于六方密堆积的无畸变球形的孔隙率。因此，优选在相对低的压力下进行软胶体的分离，因为压力的增加不一定导致分离性能的改善。这些研究结果为软胶体分离的优化操作设计和新型分离技术的开发提供了有价值的信息，并将对软胶体分离相关领域的发展做出重大贡献。

项目成果

期刊论文数量（27）

专著数量（0）

科研奖励数量（0）

会议论文数量（0）

专利数量（0）

Compression-Permeability Properties of Compressed Bed of Superabsorbent Hydrogel Particles

高吸水性水凝胶颗粒压缩床的压缩渗透性能

DOI：
发表时间：
2006
期刊：
Drying Technology 24・10
影响因子：
0
作者：
中野義夫;斉藤真紀;廣川能嗣;中野義夫他;中野義夫他;E.Iritani;E.Iritani;E.Iritani;E.Iritani;入谷英司;入谷英司;E.Iritani
通讯作者：
E.Iritani

Decolorization Properties of Melanoidin in Wastewater by White-Rot Fungi

白腐真菌对废水中类黑素的脱色性能

DOI：
发表时间：
2006
期刊：
Journal of Water Waste 48・2
影响因子：
0
作者：
中野義夫;斉藤真紀;廣川能嗣;中野義夫他;中野義夫他;E.Iritani;E.Iritani;E.Iritani;E.Iritani;入谷英司;入谷英司;E.Iritani;E.Iritani;E.Iritani
通讯作者：
E.Iritani

Interactions between Cells, Proteins, and Salts in Microfiltration of Corynebacterium glutamicum Slurry

谷氨酸棒杆菌浆料微滤中细胞、蛋白质和盐之间的相互作用

DOI：
发表时间：
2004
期刊：
Journal of Chemical Engineering of Japan 37・12
影响因子：
0
作者：
中野義夫;斉藤真紀;廣川能嗣;中野義夫他;中野義夫他;E.Iritani;E.Iritani;E.Iritani;E.Iritani;入谷英司;入谷英司;E.Iritani;E.Iritani;E.Iritani;E.Iritani;E.Iritani;E.Iritani;入谷英司;入谷英司;E.Iritani;E.Iritani;E.Iritani;E.Iritani;E.Iritani;E.Iritani;E.Iritani;E.Iritani;E.Iritani
通讯作者：
E.Iritani

Consolidation and Expansion Properties of Compressed Cake of Superabsorbent Hydrogels

超吸水性水凝胶压缩饼的固结和膨胀性能

DOI：
发表时间：
2005
期刊：
Proceedings of Filtech 2005 Vol.I
影响因子：
0
作者：
中野義夫;斉藤真紀;廣川能嗣;中野義夫他;中野義夫他;E.Iritani;E.Iritani;E.Iritani;E.Iritani;入谷英司;入谷英司;E.Iritani;E.Iritani;E.Iritani;E.Iritani;E.Iritani;E.Iritani;入谷英司;入谷英司;E.Iritani;E.Iritani;E.Iritani
通讯作者：
E.Iritani

Ultrafiltration Behavior of corynebacterium glutamicum Slurry with and without Bovine Serum Albumin

含有和不含牛血清白蛋白的谷氨酸棒杆菌浆液的超滤行为

DOI：
发表时间：
2004
期刊：
Journal of Chemical Engineering of Japan 37・7
影响因子：
0
作者：
中野義夫;斉藤真紀;廣川能嗣;中野義夫他;中野義夫他;E.Iritani;E.Iritani;E.Iritani;E.Iritani;入谷英司;入谷英司;E.Iritani;E.Iritani;E.Iritani;E.Iritani;E.Iritani;E.Iritani;入谷英司;入谷英司;E.Iritani;E.Iritani;E.Iritani;E.Iritani;E.Iritani;E.Iritani;E.Iritani
通讯作者：
E.Iritani