Journal of the Clay Science Society of Japan最新文献

{"title":"Quantitative Analysis of Each Polytype of Serpentine Minerals and the Application to Industrial Health and Geological Science","authors":"N. Kohyama","doi":"10.11362/JCSSJNENDOKAGAKU1961.46.33","DOIUrl":"https://doi.org/10.11362/JCSSJNENDOKAGAKU1961.46.33","url":null,"abstract":"","PeriodicalId":164792,"journal":{"name":"Journal of the Clay Science Society of Japan","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127360546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Frictional Properties of Serpentinites and Implications for Natural Faults","authors":"A. Tsutsumi","doi":"10.11362/JCSSJNENDOKAGAKU1961.46.24","DOIUrl":"https://doi.org/10.11362/JCSSJNENDOKAGAKU1961.46.24","url":null,"abstract":"In this note, previously reported friction data of serpentine is briefly reviewed and its implication for the faulting process is discussed. Serpentine is a common material in many active faults such as the San Andreas Fault. Laboratory studies at room temperature condition reported low friction coefficient of serpentine, in particular for chrysotile as low as,u =02. It has also been shown that velocity dependence of chrysotile-friction changed from velocity weakening at fast slip rates to velocity strengthening at slow slip rates. Based on these frictional properties of serpentine, it has been argued that the presence of chrysotile-bearing serpentine on faults is responsible both for the apparent low strength of San Andreas fault and aseismic slip (creep) of the fault. Recent studies, however, revealed that frictional strength of chrysotile increased with temperature to a level comparable with that of antigorite and lizardite. It was suggested that absorbed water may strongly influence the frictional strength of the chrysotile sample.","PeriodicalId":164792,"journal":{"name":"Journal of the Clay Science Society of Japan","volume":"66 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"132628591","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Characteristics of Flushing Dam Sediments From Dashidaira Dam at Kurobe River, Toyama, Japan, After One Year","authors":"K. Tazaki, K. Shiraki, Hiroki Imanishi, Ryuji Asada, Rie Wakimoto, Kazuya Sato","doi":"10.11362/JCSSJNENDOKAGAKU1961.46.46","DOIUrl":"https://doi.org/10.11362/JCSSJNENDOKAGAKU1961.46.46","url":null,"abstract":"The dam sediments of both Dashidaira and Unazuki Dams equipped with a flushing gate had been flushed out almost every year since 1991. The sediments are black and gray in color with smell sludge. Benthic fish counts have decreased year by year due to repeated flushing of clay-rich dam sediments associated with high organic contents. In June 29-3","PeriodicalId":164792,"journal":{"name":"Journal of the Clay Science Society of Japan","volume":"13 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2007-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125185025","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of a faujasite type of zeolite from Paper Sludge Ash and its acetaldehyde adsorption","authors":"S. Fukugaichi, N. Matsue, T. Henmi","doi":"10.11362/JCSSJNENDOKAGAKU1961.45.233","DOIUrl":"https://doi.org/10.11362/JCSSJNENDOKAGAKU1961.45.233","url":null,"abstract":"In view of recycling and environmental conservation, faujasite type zeolite was synthesized from paper sludge (PS) discharged from a paper-mill as an industrial waste of paper manufacturing processes. Main chemical components of the PS after burning (PS ash) were Al2O3 (66.1%), SiO2 (14.4%), TiO2 (11.5%) and MgO (7.5%), and talc, anatase, and amorphous aluminum hydroxides were identified. The PS ash (10 g) was mixed with NaOH (12 g) and water (100 g), and kept boiling for 24 h: this process was aimed to dissolve out Al from the PS ash. After cooling, water glass (SiO2: 28.5%, Na2O: 9.3%, H2O: 62.2%) was added and allowed to stand for 24 h (aging process). After aging, the content was again kept boiling for 24 h to obtain faujasite type zeolite. The obtained Na-saturated faujasite (Na-F) had lattice constant of a=24.927 indicating X-type faujasite (SiO2/Al203=2.62), and the yield was estimated as about 66%. Acetaldehyde adsorption experiment was carried out on Na-F and Ca-F (Ca saturated faujasite): 0.05 g of each faujasite sample was spread to 6.5 cm2 in a 200 mL of closed vessel, and acetaldehyde was introduced to be 1000 ppm. After 80 min, acetaldehyde concentration decreased to 444 ppm (Na-F) and 189 ppm (Ca-F), indicating higher adsorption ability of Ca-F than that of Na-F. This shows that calcium ion bound to faujasite has higher bonding force to acetaldehyde than sodium ion bound to faujasite. It was suggested that the zeolites synthesized using from PS ash would have enough ability for the removal of toxic gases in atmospheric environment.","PeriodicalId":164792,"journal":{"name":"Journal of the Clay Science Society of Japan","volume":"105 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124161375","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surface Reactive Sites and Ion Adsorption Modeling of Schwertmannite","authors":"M. Kawano, Sumine Obokata, K. Tomita","doi":"10.11362/JCSSJNENDOKAGAKU1961.45.223","DOIUrl":"https://doi.org/10.11362/JCSSJNENDOKAGAKU1961.45.223","url":null,"abstract":"","PeriodicalId":164792,"journal":{"name":"Journal of the Clay Science Society of Japan","volume":"38 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129529126","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Co-Precipitation Synthesis of Schwertmannite and its Analogues with Different Anion Species, Focusing on Understanding of the Role of Anions in the Formation of FeOOH Mineral","authors":"A. Inoue, T. Hatta","doi":"10.11362/JCSSJNENDOKAGAKU1961.45.250","DOIUrl":"https://doi.org/10.11362/JCSSJNENDOKAGAKU1961.45.250","url":null,"abstract":"","PeriodicalId":164792,"journal":{"name":"Journal of the Clay Science Society of Japan","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"129303188","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mineralogical Characteristics of Smectite Formed in the Toyooka Tuff Formation of the Kobe Group","authors":"Takeshi Torii, R. Kitagawa, M. Jige","doi":"10.11362/JCSSJNENDOKAGAKU1961.45.238","DOIUrl":"https://doi.org/10.11362/JCSSJNENDOKAGAKU1961.45.238","url":null,"abstract":"","PeriodicalId":164792,"journal":{"name":"Journal of the Clay Science Society of Japan","volume":"285 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-08-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124554602","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Adsorption Characteristics of Volcanic Ash Soils When Using Nitrogen-Nitrate by Column Test","authors":"Chieko Nakayama, Yoshinori Tanaka","doi":"10.11362/JCSSJNENDOKAGAKU1961.45.168","DOIUrl":"https://doi.org/10.11362/JCSSJNENDOKAGAKU1961.45.168","url":null,"abstract":"The Japanese Ministry of the Environment investigated groundwater quality at sites across the country in 2002. The survey showed that 5.9% of wells exceeded environmental quality standards for nitrogen-nitrate concentration (10mg/L). Ground water with high nitrogen-nitrate concentrations was distributed in areas of diluvial terrace covered by the Kanto loam layer. Kanto loam is a volcanic ash soil containing allophane, which is known to affect the chemical characteristics of this soil type markedly. This study discusses the adsorptive features of volcanic ash soils on nitrogen-nitrate using a column test. Several soil samples were obtained from two sites on the Kanto plain. The chemical properties of the volcanic ash soils and pure allophane were subjected to physical analysis before conducting the column test. The column was 40 cm in length and 7 cm in diameter. It was packed with 25 g soil and 2800 g silicate sand and percolated with 0.14 mM nitric acid solution to obtain a break-through curve for nitrogen-nitrate under saturated conditions. The factors of dispersion and retardation were determined from the break-through curve. Marked differences were observed between the pure allophane and soil samples. The break-through curve obtained using the pure allophane sample exhibited long tailing-off characteristics after the inflection point at pV = 2.0. The retardation factor of the pure allophane sample was also larger than that of other samples. The pH value of the eluant indicated a range from pH 5 to pH 7 through the column test, while the percolated nitric acid solution had a pH value of 4.2. The observed tailing-off characteristics are thought to have been caused by the exchange of H+ from the allophane that is bonded by metal ions. In such instances, the dissociation of the allophane-metallic complex is facilitated by H+ and is associated with an increase in the specific surface area of the allophane sample surface and the generation of a positive charge. Consequently, it is thought that the adsorption of nitrogen-nitrate is accelerated by exposure to positive ions. The finding that the adsorption of nitrate by volcanic ash soils was attributed to the H+ on fine allophane particles means that, under low pH conditions, volcanic ash soils exhibit the potential for reducing nitrogen-nitrate in groundwater. Volcanic ash soils could therefore potentially be applied to alleviate nitrate contamination in groundwater.","PeriodicalId":164792,"journal":{"name":"Journal of the Clay Science Society of Japan","volume":"89 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124304994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Synthesis of Zeolite Y in the Presence of Poly (vinyl alcohol) and the Thermal Characteristics of the Product","authors":"Masato Yoshida, Y. Goto","doi":"10.11362/JCSSJNENDOKAGAKU1961.45.159","DOIUrl":"https://doi.org/10.11362/JCSSJNENDOKAGAKU1961.45.159","url":null,"abstract":"","PeriodicalId":164792,"journal":{"name":"Journal of the Clay Science Society of Japan","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"122641137","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Catalytic Property of Synthetic Imogolite","authors":"M. Ookawa, Yoko Onishi, S. Fukukawa, Keigo Matsumoto, Masako Watanabe, T. Yamaguchi, Masaya Suzuki","doi":"10.11362/JCSSJNENDOKAGAKU1961.45.184","DOIUrl":"https://doi.org/10.11362/JCSSJNENDOKAGAKU1961.45.184","url":null,"abstract":"","PeriodicalId":164792,"journal":{"name":"Journal of the Clay Science Society of Japan","volume":"25 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2006-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127697350","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}