Search Results 1-20 of 83

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  • Ultralight Bacterial Cellulose/Polypropylene-<i>graft</i>-Maleic Anhydride Composite Cryogel for Efficient Oil/Water Separation

    Wang Qidong , Asoh Taka-Aki , Uyama Hiroshi

    … <p>An ultralight bacterial cellulose/polypropylene-<i>graft</i>-maleic anhydride (BC/PP-<i>g</i>-MA) composite cryogel was fabricated using a facile temperature induced phase separation (TIPS) method followed by freeze-drying. … The presence of PP-<i>g</i>-MA endowed BC cryogel with the vital hydrophobicity for oil adsorption from water. …

    Chemistry Letters 50(1), 14-16, 2021


  • Effective viscosity evaluation on separating oil-water mixture by ultrasonic spinning rheometry  [in Japanese]

    OHIE Kohei , YOSHIDA Taiki , Jin Hyun Jin , TASAKA Yuji , MURAI Yuichi

    … <p>Time variation of the effective viscosity in the separating water-in-oil mixture was evaluated by ultrasonic spinning rheometry (USR) combining ultrasonic velocity profiler (UVP) and equation of motion. … We obtained the results similar to the theoretical formula that the effective viscosity and pseudoplasticity decrease as the diameter and volume fraction of the water droplets decrease with time. …

    The Proceedings of the Fluids engineering conference 2020(0), OS01-11, 2020


  • A Novel Sepiolite-based Superhydrophilic/Superoleophobic Coating and Its Application in Oil-Water Separation

    Chen Beibei , Dong Zhe , Zhang Mengjie , Jia Yuhan , Yang Jin

    … <p>The separation of oil-water mixtures has attracted widespread attention for addressing increased oil spillage and oil-polluted water. …

    Chemistry Letters 49(12), 1504-1506, 2020


  • Effect of Weir Configurations on the Performance of Oil-Water Separator

    Jin Jung Kuk , Kim Youn-Jea

    … The horizontal oil-water separator is a device for separating water and oil through a gravity sedimentation system. … In this separator, the weir is located in the apparatus between the water outlet and the oil outlet, and ultimately separates the oil from the water. …

    International Journal of Fluid Machinery and Systems 13(4), 759-766, 2020


  • Fundamental Differences in Emulsification Principle between Three-phase Emulsification and Conventional Methods

    Miyasaka Kana , Imai Yoko , Tajima Kazuo

    … In the proposed three-phase emulsification, soft hydrophilic nanoparticles adhere to the oil-water interface due to the van der Waals attraction and stabilize the emulsion. … Therefore, it can be said that three-phase emulsification is "extensive emulsification" based on the mass of the hydrophilic nanoparticles and oil droplets. …

    Journal of Oleo Science 69(12), 1551-1560, 2020


  • Evaluation on time variation of effective viscosity by ultrasonic spinning rheometry (Application to separating oil-water mixture)  [in Japanese]

    OHIE Kohei , YOSHIDA Taiki , PARK Hyun Jin , TASAKA Yuji , MURAI Yuichi

    … Time variation of effective viscosity in separating oil-water mixture was examined by USR to demonstrate its applicability for both time-dependent rheological properties and multiphase media, which cannot be evaluated by conventional torque-type rheometers. …

    Transactions of the JSME (in Japanese) 86(890), 20-00242-20-00242, 2020


  • Construction of treatment process with recycling of drainage oil generated in food manufacturing plant  [in Japanese]

    Taniyama Akinobu , Sudo Keiji , Okada Toshinori , Fukuda Rina , Kazuya Okamoto , Tokumoto Hayato

    <p><b>食品工場で発生する排水油のエネルギー化にあたり、BDF化反応および嫌気発酵分解を組み合わせたハイブリッドプロセスによる検証を実施した。排水油は、常温での静置により、油相を効率的に回収できることがわかった。油相中の水分は0.1 wt%と極微量であり、BDF化により再資源化できる可能性が高いことが示唆された。分離した油相のBDF化反応条件を検討した結果、メタノールを …

    Proceedings of the Annual Conference of Japan Society of Material Cycles and Waste Management 30(0), 243, 2019


  • UV LED Curing of Hydrogel-Modified Textiles with High Anti-Fouling Resistance

    Naemuddin Nurul Hazlina , Mizi Farahin M , Suradi Siti Samahani , Jamaluddin Jamarosliza , Othman Mohd Hafiz Dzarfan , Adrus Nadia

    … <p>The hydrogel grafted polyethylene terephthalate (PET) textiles were envisioned to have oil-repelling properties due to the synergistic of combining hydrophilic hydrogel onto PET textiles surfaces. … The obtained samples were then characterized based on the degree of grafting (<i>DG</i>), Fourier transformed infrared spectroscopy (FTIR), field emission scanning electron microscopy (FESEM), surface wettability by contact angle and oil fouling test. …

    Journal of Photopolymer Science and Technology 32(5), 699-704, 2019


  • High Efficient Filtration Process of Cutting Oil W/O Emulsion Using Spiral Cross Flow Separation Technique  [in Japanese]

    HAYATSU Akihide , KOBAYASHI Nobusuke , ITAYA Yoshinori , KATO Yuji

    … Filtration of cutting oil W/O emulsion by using spiral cross flow was conducted, and the filtration rate and filtration ratio in different filtration conditions was evaluated. … Cutting oil W/O emulsion was separated oil and water by the ceramic filter, and the filtration ratio of ceramic filter was more than 99%. …

    The Proceedings of the Symposium on Environmental Engineering 2018.28(0), 313, 2018


  • Mechanical Filtration of Cutting Oil Emulsion Using Spiral Cross Flow Separetion Technique  [in Japanese]

    Hayatsu Akihide , Kobayashi Nobusuke , Itaya Yoshinori , Kato Yuji

    旋回式クロスフローを用いた使用後の切削油に含まれるエマルジョンの濾過を行い、濾過速度及び濾過条件を評価した。 実験では、目開きの異なる種々のセラミックフィルターを使用し、エマルジョン粘度も変更した。 旋回式クロスフロー分離の濾過性能を評価するために、濾液に含まれる官能基もFT-IRによって分析した。 セラミックフィルターを用いた旋回式クロスフロー技術によりエマルジョン中の油水分離が可能であり、濾過 …

    Proceedings of the Annual Conference of Japan Society of Material Cycles and Waste Management 29(0), 293, 2018


  • Oil-Water Separation of Cutting Drainage by a Spiral Cross Flow with Ceramic Filter  [in Japanese]

    Kobayashi Nobusuke , Hayatsu Akihide , Kato Yuji , Itaya Yoshinori

    セラミックフィルターを用いた旋回式クロスフローによる実切削排液の油水分離を行った。フィルターには,旋回ロッドを挿入した目開き 1.2 および 2.5 μm の中空セラミックフィルターを用いた。実験では,水,鉱物油,界面活性剤および切削微粒子等が混合している実切削排液からの水の分離を試み,エマルジョン循環流量やフィルター目開き等の分離条件や切削排液の種類が分離速度や分離率に与える影響について評価を行 …

    Journal of the Japan Society of Material Cycles and Waste Management 29(0), 219-226, 2018


  • Facile Fabrication of Flexible Bacterial Cellulose/Silica Composite Aerogel for Oil/Water Separation

    Wang Qidong , Asoh Taka-Aki , Uyama Hiroshi

    … The obtained composite aerogel showed excellent hydrophobicity and flexibility, making it a promising oil sorbent for oil/water separation.</p> …

    Bulletin of the Chemical Society of Japan 91(7), 1138-1140, 2018


  • pH-Responsive Superwetting Fabric for On-demand Oil-Water Separation

    Liu Mingming , Hou Yuanyuan , Li Jing , Tie Lu , Guo Zhiguang

    … Such smart fabric can be applied for on-demand corrosive water-oil separation with high flux and efficiency.</p> …

    Chemistry Letters 47(7), 923-926, 2018


  • <i>In Situ</i> Microscope Measurements and Analysis of the Passing of Individual Paramagnetic Particles through the Interfaces of Aqueous Two-Phase Systems by Magnetic Force

    KATAYAMA Kazuya , TSUKAHARA Satoshi

    … <p>The interfacial tensions of aqueous two-phase systems (ATPS) are commonly much lower than those of common oil/water interfaces. … The present method is a fundamental study to develop a separation method for μm-sized particles using liquid/liquid interfaces.</p> …

    Solvent Extraction Research and Development, Japan 25(2), 91-99, 2018


  • Economic Evaluation of Wastewater Treatment System Based on Recovery Characteristics of Oil and Suspended Solids by Filtration

    ANKYU Eriko , OTSUKA Toshihiko , NOGUCHI Ryozo , 野口 良造

    … Filtration experiments were conducted using artificial wastewater at 20 °C and 60 °C to explain the relationship between the separation ability of oil-water separation equipment and the recovery rate of suspended solids (SS) recovery equipment for oil concentrations. …

    日本エネルギー学会誌 = Journal of the Japan Institute of Energy 96(4), 102-111, 2017-04


  • Oil-water separation and anti-fouling treatment using the hydrophilic and oleophobic agents  [in Japanese]

    今井 浩之

    油空圧技術 56(3), 44-48, 2017-03

  • Abiotic Colloids Exhibiting Active Motion with Semblance of Life  [in Japanese]

    SHIOI Akihisa , YAMAMOTO Daigo , NAWA-OKITA Erika

    <p>不可逆的に化学反応や物質移動が進行する非平衡状態におかれたコロイドが示す運動性は,熱運動とは異なり時空間的に秩序ある動きになり得る。この動きは,集団によるパターン化,能動輸送性,刺激感知性,化学走性などの生物的な特徴を示すことがあるが,生物とは異なり,単純な物質系で構成されている。 このような運動系は本質的に開放系であり,運動を生み出す過程は外界との物質移動を行う表界面で進んでい …

    Oleoscience 17(2), 63-75, 2017


  • Fabrication of a porous syndiotactic polypropylene monolith using cyclohexanone for oil absorption  [in Japanese]

    Watanabe Kosuke , Hotta Atsushi

    The Proceedings of Conference of Kanto Branch 2017.23(0), 1614, 2017



    KOJIMA Keisuke , TASAKI Masaharu , OKAMURA Kazuo , SUEYOSHI Mark N.

    石油随伴水の前処理として,油水分離による油分回収について検討した.エマルション状油分を含む模擬石油随伴水に塩を添加することで油水分離が促進され,油分が表層に浮上し最大96.3%の油分を回収できることを確認した.使用する塩は,Na<sup>+</sup>よりもMg<sup>2+</sup>やCa<sup>2+</sup>のような …

    Journal of Japan Society of Civil Engineers, Ser. G (Environmental Research) 73(7), III_429-III_437, 2017


  • Economic Evaluation of Wastewater Treatment System Based on Recovery Characteristics of Oil and Suspended Solids by Filtration

    ANKYU Eriko , OTSUKA Toshihiko , NOGUCHI Ryozo

    <p>水温20℃と60℃の模擬排水を用いて濾過実験をおこない,油の濃度に対する油水分離装置の分離性能とSS回収装置の回収率の関係を明らかにした。濾過実験で明らかになった油とSSの濾過特性にもとづき,油水分離装置を用いてSS回収装置を用いない単独使用(single use)と,油水分離装置とSS 回収装置を使用する併用使用(combination use)の2条件に対して,分離作業量(S …

    Journal of the Japan Institute of Energy 96(4), 102-111, 2017


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