Dynamics and Control of Colloidal Phenomena in Agro-environment Determined by Hydrodynamic and Surface Process

水动力和表面过程决定的农业环境中胶体现象的动力学和控制

• 批准号: 16208023
• 负责人: ADACHI Yasuhisa
• 金额: $ 23.05万
• 依托单位: University of Tsukuba
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (A)
• 财政年份: 2004
• 资助国家: 日本
• 起止时间: 2004 至 2007
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-16208023/
• 关键词: Colloid; Floc; Structure; coagulation; dispersion; Polyelectrolvte; Colloid facilitated transportation; Streaming potential; 沈降; シアー; 土; イモゴライト; アロフェン; 吸着; 腐植

Physicochemical and hydrodynamic factors of environmental colloids and interface which control the state and migration of chemical substances by means of dissolution, nucleation, micellization, adsorption, diffusion, sedimentation and fluidization are analyzed paying emphasis on the coagulation and flocculation behavior in relation to human activity and natural condition of agro-bio-environment.These activities are closely linked to the international community of Interface against Pollution that plans the Kyoto meeting in 2008. The interrelation has been discussed a series of domestic conferences organized as a line this research activity. In addition to this, the following results are obtained in this year.1) The analysis of zero shear limit rheology of clay suspension by means of special viscometer revealed the role of electrical double layers in the appearance of non-Newtonian behavior.2) Validity of simultaneous analysis of the streaming potential and the stability of colloid in the fate of colloid facilitated transportation was revealed in terms of DLVO theory.3) Dynamic behavior of polyelectrolyte on the surface of colloid was analyzed in relation to flocculation of colloidal particles.

环境胶体和界面的物理化学和流体动力学因素，通过溶解、成核、胶束化、吸附、扩散，着重分析了混凝与絮凝行为与人类活动和农业生物自然条件的关系，这些活动与计划于2008年举行京都会议的国际社会“防止污染界面”密切相关。作为本研究活动的一条主线，国内组织了一系列学术会议，对二者之间的相互关系进行了探讨。除此之外，本年度取得了以下成果：1）用专用粘度计分析粘土悬浮液的零剪切极限流变性，揭示了双电层在非牛顿行为出现中的作用; 2）用DLVO理论同时分析胶体的流动电位和胶体的稳定性，揭示了胶体易化输运过程的有效性; 3）从胶体颗粒絮凝的角度分析了胶体表面吸附剂的动力学行为。

项目成果

有機分子のナノサイズ細孔内拡散

有机分子在纳米级孔隙中的扩散

• 发表时间: 2008
• 期刊: オレオサイエンス 8巻2号
• 作者: Takashi;Watanabe;中谷清治
• 通讯作者: 中谷清治

Hydrodynamic transportation of colloidal particles through column of glass beads and Kanuma Soil

胶体颗粒通过玻璃珠柱和鹿沼土的流体动力输送

• 发表时间: 2004
• 作者: Ishiwata;T. ;et. al.;Y. Yamashita
• 通讯作者: Y. Yamashita

Determination of hydrodynamic diameter of small flocs by means of direct movie analysis of Brownian motion

• DOI: 10.1016/j.colsurfa.2007.03.030
• 发表时间: 2007-10-01
• 期刊: COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
• 影响因子: 5.2
• 作者: Kusaka, Y.;Adachi, Y.
• 通讯作者: Adachi, Y.

フロック形成を考慮した土壌粒度分析の改善と国頭マージの粒度分析への適応

考虑絮凝体形成的土壤粒度分析的改进以及对国头合并粒度分析的适应

• 发表时间: 2005
• 期刊: 農業土木学会論文集 236
• 作者: T.Katoh;Y.Adachi
• 通讯作者: Y.Adachi

拡散律速クラスター凝集シミュレーションを用いた凝集体の構造評価

使用扩散控制簇聚集模拟进行聚集体结构评估

• 发表时间: 2008
• 作者: 新山陽子;西川朗;三輪さち子;H. Mori;今村祐嗣;日下靖之
• 通讯作者: 日下靖之