Yusuke Ito, Taiki Abe, Hiroyuki Koga, A. Fujiyama, T. Matsumoto
{"title":"Optimization of Waste Treatment Planning in Intermediate Treatment Facilitates","authors":"Yusuke Ito, Taiki Abe, Hiroyuki Koga, A. Fujiyama, T. Matsumoto","doi":"10.3985/jjsmcwm.33.128","DOIUrl":"https://doi.org/10.3985/jjsmcwm.33.128","url":null,"abstract":"","PeriodicalId":432877,"journal":{"name":"Journal of The Japan Society of Material Cycles and Waste Management","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123706508","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}
Kazuaki Tomono, R. Sakamoto, Yui Mokuge, M. Okada, Yuma Yahata
The bromination of metallurgical grade silicon (MG-Si) was investigated in a flow reactor in the presence of iron under various conditions. The reactivity of Si samples was evaluated with respect to HBr conversion and SiHBr 3 selectivity, while product purity was analyzed after hydrolyzing them to silicon dioxide (SiO 2 ). The concentration of metal elements in the product were much less than those in MG-Si. The addition of iron resulted in no significant increase in metal impurities. Rather, it resulted in an improvement of reaction kinetics in a temperature range of 380-400 ℃, probably as a result of better catalytic action in the reactant due to the substance accelerating the catalysis of iron. The activation energy for the overall bromination reaction in the presence of iron was estimated to be 129 kJ/mol.
{"title":"Effect of Iron Addition on Bromination Reaction of Silicon","authors":"Kazuaki Tomono, R. Sakamoto, Yui Mokuge, M. Okada, Yuma Yahata","doi":"10.3985/JJSMCWM.30.73","DOIUrl":"https://doi.org/10.3985/JJSMCWM.30.73","url":null,"abstract":"The bromination of metallurgical grade silicon (MG-Si) was investigated in a flow reactor in the presence of iron under various conditions. The reactivity of Si samples was evaluated with respect to HBr conversion and SiHBr 3 selectivity, while product purity was analyzed after hydrolyzing them to silicon dioxide (SiO 2 ). The concentration of metal elements in the product were much less than those in MG-Si. The addition of iron resulted in no significant increase in metal impurities. Rather, it resulted in an improvement of reaction kinetics in a temperature range of 380-400 ℃, probably as a result of better catalytic action in the reactant due to the substance accelerating the catalysis of iron. The activation energy for the overall bromination reaction in the presence of iron was estimated to be 129 kJ/mol.","PeriodicalId":432877,"journal":{"name":"Journal of The Japan Society of Material Cycles and Waste Management","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"128788982","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}
R. Tajima, N. Hirayama, Mitsuyasu Takata, S. So, M. Osako
{"title":"Methods for Estimating the Amount of Disaster Waste: —A Review Based on Disaster Response and Management Perspectives—","authors":"R. Tajima, N. Hirayama, Mitsuyasu Takata, S. So, M. Osako","doi":"10.3985/JJSMCWM.29.104","DOIUrl":"https://doi.org/10.3985/JJSMCWM.29.104","url":null,"abstract":"","PeriodicalId":432877,"journal":{"name":"Journal of The Japan Society of Material Cycles and Waste Management","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125402471","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":"Analysis and Estimation Model for Municipal Solid Waste Landfill Costs","authors":"T. Matsuto, Keisuke Ohara","doi":"10.3985/JJSMCWM.21.30","DOIUrl":"https://doi.org/10.3985/JJSMCWM.21.30","url":null,"abstract":"","PeriodicalId":432877,"journal":{"name":"Journal of The Japan Society of Material Cycles and Waste Management","volume":"53 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125497423","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":"Concretization of Preparation Conditions for Phosphorus Fertilizer using a Sewage Sludge Ash-melting Process and Applicability Evaluation on Full-scale Agricultural Fields","authors":"S. Himeno, K. Kushida, Makoto Omine, T. Tsuyuzaki, Toshiya Komatsu, S. Fujita","doi":"10.3985/JJSMCWM.20.231","DOIUrl":"https://doi.org/10.3985/JJSMCWM.20.231","url":null,"abstract":"リン鉱石は枯渇が懸念される資源である一方，下水汚泥焼却灰はリン鉱石と同程度リンを含有し，リン鉱石と代替できる可能性を有する。そこで本研究は，溶融処理を用いたスラグ肥料の作成可能な下水汚泥焼却灰組成範囲と，肥料としての安全性・肥効性の明確化を目的とした。灰組成による影響検討のためモデル灰からスラグ肥料を作製した結果，灰組成中にリン酸17wt%以上，酸化マグネシウム15wt%以上，アルカリ分40wt%以上となる範囲内にすることで品質基準を満たすことを確認した。また実焼却灰でもこの組成範囲に調整することでリン肥料が作製可能なことを確認した。重金属類に対する安全性の検討を行った結果，含有量試験より鉛やクロムなどは肥料取締法基準値を満たすことを確認した。またスラグ肥料を施肥して栽培した作物を分析した結果，植物中の鉛，カドミウム，クロムは食品衛生法の許容上限量を下回り，実土壌への適用が可能であることが示唆された。","PeriodicalId":432877,"journal":{"name":"Journal of The Japan Society of Material Cycles and Waste Management","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126458777","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":"Extraction and Spectroscopic Analysis of Humic Substances with the Goal of Recycling Construction Sludge:","authors":"D. Suzuki, R. Shoji","doi":"10.3985/jjsmcwm.32.86","DOIUrl":"https://doi.org/10.3985/jjsmcwm.32.86","url":null,"abstract":"","PeriodicalId":432877,"journal":{"name":"Journal of The Japan Society of Material Cycles and Waste Management","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"126563304","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":"Evaluating the Effects of Alternative Product Consumption Patterns on Material Flow and CO2 Emissions in China","authors":"Naoki Wada, Y. Yamamoto, O. Saito, T. Morioka, A. Tokai","doi":"10.3985/JJSMCWM.22.19","DOIUrl":"https://doi.org/10.3985/JJSMCWM.22.19","url":null,"abstract":"本研究では，電気・電子機器使用のエネルギー消費や廃棄物の発生・再資源化が，消費者の選択行動の結果として現れることに着目し，その違いが製品フローおよび環境負荷排出に与える影響を評価した。上海市周辺の長江中下流域1市5省を対象に，アンケート調査および文献調査により，将来の消費形態として「傾向延長型」・「積極買換型」・「使い回し型」・「高品質堅実型」の4つを抽出し，2006～2030年の廃棄物発生量およびCO2排出量を比較した。その結果，2030年において両指標ともに「高品質堅実型」が最も優れていたが，「積極買換型」と「使い回し型」にトレードオフが生じることがわかった。また，生活水準への影響も考慮した場合，「高品質堅実型」と「使い回し型」を組み合わせて適用することで，資源消費抑制・有害物質汚染の低減・経済格差是正等の多面的な目的に考慮した製品循環システムが構築される可能性があることが示唆された。","PeriodicalId":432877,"journal":{"name":"Journal of The Japan Society of Material Cycles and Waste Management","volume":"46 7","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114122747","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":"Dehydrochlorination of Polyvinyl Chloride Using Amine Additives","authors":"F. Osada, Kazuyo Nagai","doi":"10.3985/JJSMCWM.21.19","DOIUrl":"https://doi.org/10.3985/JJSMCWM.21.19","url":null,"abstract":"ポリ塩化ビニル59.2%，フタル酸ジオクチル (以下DOPと略する) 29.7%，その他安定剤約12%から構成される軟質ポリ塩化ビニル (以下軟質PVCと略する) と，硬質ポリ塩化ビニルレジン (以下硬質PVCと略する) を，NaOH溶液濃度2～16mol/L，マイクロ波加熱により，反応温度100～200℃，反応時間0～1時間で処理し脱塩化水素挙動を調べた。この時，梱包時に使用される緩衝材のポリウレタンを0～0.2gそれぞれ添加した。反応温度190℃，2mol/L NaOH溶液，ポリウレタン0.02g添加，反応時間30分にて塩化物は98%除去でき，残渣は炭素と水素の化合物に転換されていることがわかった。反応後のNaOH溶液中から有機系アミンが検出され，ポリウレタンの加水分解由来のものと推察された。アミンにより脱塩化水素反応が促進されたと推測されるため，反応温度190℃，2mol/L NaOH溶液，反応時間30分にて，水和ヒドラジン,アンモニア水，トリメチルアミン，2-アミノエタノールを同様の条件で添加し脱塩化水素挙動を調べたところ，塩化物はそれぞれ最大99.6%，94.6%，96.3%，92.9%除去できることがわかった。アミンが共存することで，既知の方法よりNaOH水溶液の濃度は1/8の2mol/L NaOH溶液で行え，反応温度を下げることができ，脱塩化水素に有効であることがわかった。","PeriodicalId":432877,"journal":{"name":"Journal of The Japan Society of Material Cycles and Waste Management","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121052108","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":"Measurement System for Soil-Air Permeability Coefficient in Soil Deodorizer","authors":"T. Nakajima, S. Tojo, H. Saito, Makoto Kato","doi":"10.3985/JJSMCWM.20.394","DOIUrl":"https://doi.org/10.3985/JJSMCWM.20.394","url":null,"abstract":"土壌脱臭施設の土壌脱臭槽の設計・開発では，土壌中のガス移流を支配する土壌透気係数の測定技術が必要である。本研究では，現場に対応できる透気係数を高精度に測定するため，新たな方式の透気実験装置を試作し，3種類の砂質系土壌で透気実験を行った。提案した透気実験装置は，土壌脱臭槽での利用を考え，中規模のスケールの供試体で実験を行える。また，側面流を防ぐ目的でスリーブラバーにより供試体側面をシーリングし，同時に体積変化を測定することができるという特徴を有している。同様の試料を用いた神谷ら (2006) の透気実験結果と比較すると，本研究で求められた透気係数の値は若干小さくなる傾向を示した。本研究で提案した透気実験装置は，中規模スケールの供試体を対象とする様々な分野での利用が可能である。","PeriodicalId":432877,"journal":{"name":"Journal of The Japan Society of Material Cycles and Waste Management","volume":"22 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116655107","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}
Mitsuyasu Takata, Shusaku Yamamoto, R. Nishioka, S. Takemine, Shuhei Tanaka, S. Fujii, N. Watanabe
{"title":"Behavior of Perfluorinated Compounds Adsorbed in Exhausted Activated Carbon during Thermal Treatment and Combustion","authors":"Mitsuyasu Takata, Shusaku Yamamoto, R. Nishioka, S. Takemine, Shuhei Tanaka, S. Fujii, N. Watanabe","doi":"10.3985/JJSMCWM.1130101","DOIUrl":"https://doi.org/10.3985/JJSMCWM.1130101","url":null,"abstract":"","PeriodicalId":432877,"journal":{"name":"Journal of The Japan Society of Material Cycles and Waste Management","volume":"141 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1900-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121635652","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}
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