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Correlation of Infinite Dilution Activity Coefficients of Organic Compound in Water 有机化合物在水中无限稀释活度系数的相关性
Journal of ecotechnology research Pub Date : 2010-01-01 DOI: 10.11190/JER.15.59
Fukuchi Kenji, Miyoshi Katsumi, Kobuchi Shigetoshi, Yonezawa Setsuko, Arai Yasuhiko
{"title":"Correlation of Infinite Dilution Activity Coefficients of Organic Compound in Water","authors":"Fukuchi Kenji, Miyoshi Katsumi, Kobuchi Shigetoshi, Yonezawa Setsuko, Arai Yasuhiko","doi":"10.11190/JER.15.59","DOIUrl":"https://doi.org/10.11190/JER.15.59","url":null,"abstract":"The infinite dilution activity coefficients of alcohols (methanol, ethanol, 1-propanol , 2-propanol) , ethers(diethyl ether, methyl tertiary butyl ether, diisopropyl ether) and aromatic compounds(benzene, toluene, p-xylene) in aqueous solution had been correlated by the modified ASOG model previously proposed. In this paper, it is introduced that the modified ASOG can be applied to calculate the infinite dilution activity coefficients with a good correlation performance than original ASOG.","PeriodicalId":15612,"journal":{"name":"Journal of ecotechnology research","volume":"27 1","pages":"59-62"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81527388","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}
引用次数: 0
Preparation of calcium phosphates from artificial phosphorus wastewater and sea urchin shells 用人工磷废水和海胆壳制备磷酸钙
Journal of ecotechnology research Pub Date : 2010-01-01 DOI: 10.11190/JER.15.107
Onoda Hiroaki, Kawade Hiroki, Takenaka Atsushi
{"title":"Preparation of calcium phosphates from artificial phosphorus wastewater and sea urchin shells","authors":"Onoda Hiroaki, Kawade Hiroki, Takenaka Atsushi","doi":"10.11190/JER.15.107","DOIUrl":"https://doi.org/10.11190/JER.15.107","url":null,"abstract":"Calcium phosphates were prepared from sea urchin shells and artificial phosphorus waste fluid. The calcined shells were dissolved in hydrochloric acid solution, and then filtered. This sea urchin shell extract was mixed with the artificial phosphorus waste fluid prepared from sodium dihydrogen phosphate. It was then adjusted to pH 7 using sodium hydroxide solution. The obtained precipitate contained the organic coloring material from sea urchin shell calcined at lower temperature. The main component of the precipitate was CaHPO 4 •2H 2 O. This phosphate was changed to Ca 2 P 2 O 7 by heating because of the condensation reaction. The chemical composition, particle shape, and size were not strongly affected by the heating temperature for the pretreatment.","PeriodicalId":15612,"journal":{"name":"Journal of ecotechnology research","volume":"26 1","pages":"107-111"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89563187","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}
引用次数: 4
Using bulk deposit samplers to evaluate pollutant loads from atmospheric deposition 使用散装沉积物取样器评估大气沉降的污染物负荷
Journal of ecotechnology research Pub Date : 2010-01-01 DOI: 10.11190/JER.15.53
Nakazawa Koyomi, Kunimatsu Takao, N. Osamu
{"title":"Using bulk deposit samplers to evaluate pollutant loads from atmospheric deposition","authors":"Nakazawa Koyomi, Kunimatsu Takao, N. Osamu","doi":"10.11190/JER.15.53","DOIUrl":"https://doi.org/10.11190/JER.15.53","url":null,"abstract":"The aim of this study was to evaluate the number of bulk deposit samplers needed to measure atmospheric deposition of pollutants with an acceptable level of variability. A set of 10 bulk deposit samplers was placed at an experimental site near Lake Biwa in the Shiga Prefecture in Japan, and water samples were collected monthly from each sampler. First, the effects of the intrusion of insects and litter were examined by placing intrusion-prevention devices on the samplers. All measures of variation (coefficient of variation [CV], skewness, and kurtosis) were smaller when the device was used than when it was not. Total nitrogen (TN) loads started to increase in April and peaked in June, with a secondary small peak in February. Levels of dissolved nitrogen, NO3-N, and NH4-N showed similar trends. Total phosphorus (TP) reached a maximum in May, and stayed at a relatively high level until it reached a second peak in August and September. The annual precipitation data obtained from the bulk deposit samplers were normally distributed and had an average and median value of 1570 mm yr-1 (CV, 1.0%). Annual TN loads were also distributed normally, and their average and median values were 12.1 (CV, 2.7%) and 12.0 kg ha-1 yr-1, respectively. Annual TP load, however, apparently deviated from a normal distribution, and the average (0.417 kg ha-1 yr-1; CV, 24%) was larger than median (0.395 kg ha-1 yr-1). At least 8 bulk deposit samplers were needed to obtain TP loads of atmospheric deposition with a CV of less than 5%. The TN loads from the atmosphere to Lake Biwa were estimated to range from 780 to 854 t y-1, whereas the TP load showed a much larger relative range of 20.8 to 42.9 t y-1, indicating that more studies are needed to measure and evaluate the atmospheric deposition of phosphorus.","PeriodicalId":15612,"journal":{"name":"Journal of ecotechnology research","volume":"147 1","pages":"53-58"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87176713","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}
引用次数: 0
The Ambul: an ecotechnology for controlling lake eutrophication and preventing direct load of domestic sewage to the river Ambul:一种控制湖泊富营养化和防止生活污水直接流入河流的生态技术
Journal of ecotechnology research Pub Date : 2010-01-01 DOI: 10.11190/JER.15.43
Gumiri Sulmin, Ardianor, Erayani Sita
{"title":"The Ambul: an ecotechnology for controlling lake eutrophication and preventing direct load of domestic sewage to the river","authors":"Gumiri Sulmin, Ardianor, Erayani Sita","doi":"10.11190/JER.15.43","DOIUrl":"https://doi.org/10.11190/JER.15.43","url":null,"abstract":"In this study, we adopted the Ambul technology which is a traditional knowledge of indigenous people of Kalimantan island-Indonesia to grow various crops on a floating decomposed water hyacinth on wetland ecosystem. The study was focused on the effect of water hyacinth cover on water quality and the growth of aquatic microorganism community. We also tested the utilization of water hyacinth as additional food supply for a cage cultured fish. The investigation of the effect of water hyacinth cover on water quality and the growth of aquatic microorganism community was conducted in 2 experimental ponds nearby our laboratory. One pond was treated with water hyacinth, whereas the other was kept intact without water hyacinth, as a control. Water quality in terms of phosphate, nitrate and BOD and also aquatic microorganisms particularly copepod communities were monitored at both ponds prior and after the introduction of water hyacinth. For the purpose of using water hyacinth as additional food supply for cage cultured fish, we established an experimental fish culture in water hyacinth treated and in non water hyacinth treated cages. Fish growth in terms of their weight and length were monitored for 3 months.","PeriodicalId":15612,"journal":{"name":"Journal of ecotechnology research","volume":"135 1","pages":"43-47"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79884997","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}
引用次数: 0
Effects of dams and weirs to the distribution of Japanese mitten crab in Imizu plain, Toyama 富山稻津平原坝堰对大闸蟹分布的影响
Journal of ecotechnology research Pub Date : 2010-01-01 DOI: 10.11190/JER.15.121
Takahashi Goichiro, Kuroda Yoshihiro, Hashiguchi Masanao, Senseki Takahisa
{"title":"Effects of dams and weirs to the distribution of Japanese mitten crab in Imizu plain, Toyama","authors":"Takahashi Goichiro, Kuroda Yoshihiro, Hashiguchi Masanao, Senseki Takahisa","doi":"10.11190/JER.15.121","DOIUrl":"https://doi.org/10.11190/JER.15.121","url":null,"abstract":"The distribution of Japanese mitten crab ( Eriocheir japonica (de Haan)) was researched in three river systems in the Imizu plain, central Toyama, and the effects of dams and weirs on the upstream movement of the crabs were examined. Mitten crabs could pass the dams and weirs when the dams or the stream banks below the dams had a gentle slope and a rough surface; sometimes, stems and leaves attached to the dams and slope faces helped crabs climb. Crabs did not pass the dams when such conditions were not present, even if the slopes were only about 1m high. It was confirmed that mitten crabs would reach the most upstream areas if there was no critical obstacle. In the studied rivers, the presence of many dams and weirs worsened the river environment.","PeriodicalId":15612,"journal":{"name":"Journal of ecotechnology research","volume":"113 1","pages":"121-127"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79859976","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}
引用次数: 0
Temporal changes in the mutagenicity of roof runoff water 屋面径流水致突变性的时间变化
Journal of ecotechnology research Pub Date : 2010-01-01 DOI: 10.11190/JER.16.7
K. Okugawa
{"title":"Temporal changes in the mutagenicity of roof runoff water","authors":"K. Okugawa","doi":"10.11190/JER.16.7","DOIUrl":"https://doi.org/10.11190/JER.16.7","url":null,"abstract":"","PeriodicalId":15612,"journal":{"name":"Journal of ecotechnology research","volume":"30 1","pages":"7-12"},"PeriodicalIF":0.0,"publicationDate":"2010-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"82803780","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}
引用次数: 0
Pyrazine- and Diazepine- Substituted Phthalocyanines: Synthesis and Optical Properties by Metal Ion Coordination 吡嗪和二氮平取代酞菁:金属离子配位的合成及其光学性质
Journal of ecotechnology research Pub Date : 2009-07-27 DOI: 10.11190/JER.15.1
M. Eiki, Hirazawa Ikumi, Kobayashi Manabu
{"title":"Pyrazine- and Diazepine- Substituted Phthalocyanines: Synthesis and Optical Properties by Metal Ion Coordination","authors":"M. Eiki, Hirazawa Ikumi, Kobayashi Manabu","doi":"10.11190/JER.15.1","DOIUrl":"https://doi.org/10.11190/JER.15.1","url":null,"abstract":"","PeriodicalId":15612,"journal":{"name":"Journal of ecotechnology research","volume":" 10","pages":"1-4"},"PeriodicalIF":0.0,"publicationDate":"2009-07-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"91410760","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}
引用次数: 0
Verification of the Function of Eelgrass Beds in the Stabilization of Bottom Sediment through Field Observations 通过野外观测验证大叶草床在稳定底泥中的作用
Journal of ecotechnology research Pub Date : 2009-05-01 DOI: 10.11190/JER.14.231
A. Moriguchi, N. Takagi, T. Terawaki
{"title":"Verification of the Function of Eelgrass Beds in the Stabilization of Bottom Sediment through Field Observations","authors":"A. Moriguchi, N. Takagi, T. Terawaki","doi":"10.11190/JER.14.231","DOIUrl":"https://doi.org/10.11190/JER.14.231","url":null,"abstract":"","PeriodicalId":15612,"journal":{"name":"Journal of ecotechnology research","volume":"29 1","pages":"231-234"},"PeriodicalIF":0.0,"publicationDate":"2009-05-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77874788","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}
引用次数: 0
Changes in Surface Air Temperature, Humidity, and Precipitation Over Toyama Prefecture Due to Global Warming 全球变暖导致富山县地表气温、湿度和降水的变化
Journal of ecotechnology research Pub Date : 2009-01-01 DOI: 10.11190/JER.14.189
Hatsushika Hiroaki, Kawamura Ryuichi, Kawasaki Kiyoto, Kido Mizuka, Kondo Takayuki, Mizoguchi Toshiaki, Nakamura Tokuhiro, Oritani Tei-ichi, Tsuchihara Yoshihiro, Yamazaki Takahisa
{"title":"Changes in Surface Air Temperature, Humidity, and Precipitation Over Toyama Prefecture Due to Global Warming","authors":"Hatsushika Hiroaki, Kawamura Ryuichi, Kawasaki Kiyoto, Kido Mizuka, Kondo Takayuki, Mizoguchi Toshiaki, Nakamura Tokuhiro, Oritani Tei-ichi, Tsuchihara Yoshihiro, Yamazaki Takahisa","doi":"10.11190/JER.14.189","DOIUrl":"https://doi.org/10.11190/JER.14.189","url":null,"abstract":"","PeriodicalId":15612,"journal":{"name":"Journal of ecotechnology research","volume":"4 1","pages":"189-194"},"PeriodicalIF":0.0,"publicationDate":"2009-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72748859","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}
引用次数: 0
Evaluation of Transportation Fuel from Bioethanol 生物乙醇运输燃料的评价
Journal of ecotechnology research Pub Date : 2009-01-01 DOI: 10.11190/JER.15.9
Tsutsumi Yuya, K. Watari, Satokawa Shigeo, Kojima Toshinori
{"title":"Evaluation of Transportation Fuel from Bioethanol","authors":"Tsutsumi Yuya, K. Watari, Satokawa Shigeo, Kojima Toshinori","doi":"10.11190/JER.15.9","DOIUrl":"https://doi.org/10.11190/JER.15.9","url":null,"abstract":"","PeriodicalId":15612,"journal":{"name":"Journal of ecotechnology research","volume":"19 1","pages":"9-12"},"PeriodicalIF":0.0,"publicationDate":"2009-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83359713","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}
引用次数: 0
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