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Osamu UMEZAWA
2006 Volume 13 Issue 325 Pages
386-389
Published: November 01, 2006
Released on J-STAGE: August 16, 2011
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Daisaku TENOKUCHI, Masahiro YOSHIDA, Kyohei AKITA, Yoshihiro OHZUNO, C ...
2006 Volume 13 Issue 325 Pages
390-400
Published: November 01, 2006
Released on J-STAGE: March 07, 2011
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Droplets of water-in-oil-in-water (w/o /w) emulsion were prepared by utilizing sodium alginate solution (microorganism protectant and phase-separation material) incorporated microorganism (denitrifying bacteria : Paracoccus denitrificans IF013301) [internal aqueous solution] and dichloromethane (DCM) dissolved polymethylmethacrylate (PMMA, wall material) possessing good chemical and mechanical strength, polyethylene glycol (PEG) and sorbitan monooleate (emulsion stabilizer) [organic solution]. These droplets could be formed core-shell microcapsules with a large single core and a porous wall by the combination of phase separation and solvent evaporation. The internal aqueous solution was necessary to form hollow structure, and the optimum concentration of the sodium alginate solution that functions as microorganism protectant and phase-separation material was 3% (w/w). PEG and sorbitan monooleate were so important factor to prepare excellent microcapsules influenced on hollow structure and surface morphology. Moreover, the thickness of PMMA shell could be controlled by changing the concentration of PMMA for DCM. In the composition condition of PMMA 1.5 g/DCM 20 g, the prepared microcapsules had an average wall thickness of 30 pm and a large hollow core. Although PMMA shell was tended to thicken by adding 1 g of the microorganism, this phenomenon could be improved by decreasing the quantity of the microorganism to 0.2 g. Thus, in this study, the materials that compose the PMMA microcapsules were clarified the influence on the capsule structures.
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Tetsuyuki KOIZUMI, Misumi HANARI, Takasi KOJIMA, Naofumi UEKAWA, Kazuy ...
2006 Volume 13 Issue 325 Pages
401-407
Published: November 01, 2006
Released on J-STAGE: March 07, 2011
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Getting the landfill space for the municipal solid waste incinerator ash is the very important issue. In order to reduce the volume of the municipal solid waste incinerator ash, ash melting furnaces were introduced in Japan late in 1990's. The molten ash is rapidly cooled by being put into water, resulting in shrunken vitrified slag. Such furnaces, however, require high temperatures such as 1300-1500°C, consuming high energy. Molten ash quickly erodes refractory of the furnace. These lead to a high cost of the maintenance. This study developed a new method, in which a mixture of incinerated ash and molten slag was heated under small pressures, resulting in a decrease in its volume. The molten slag itself softened between 800°C and 900°C. The incinerator ash had a void of about 65%. It was predicted that 2 times mass of molten slag can be pushed into the void of the incinerator ash. When a mixture of the incinerator ash and the molten slag with the ratio of 1 : 2 was heated at 900°C under a pressure of 0.52 MPa, it was shrunken to the ideal volume. At a lower temperature, 800°C, it could be shrunken to almost the ideal volume by an increased pressure of 2.3 MPa.
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Nobuyuki TAKEUCHI, Chiemi OHNISHI, Shingo ISHIDA
2006 Volume 13 Issue 325 Pages
408-412
Published: November 01, 2006
Released on J-STAGE: March 07, 2011
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The lightweight ceramics were fabricated by firing the mixtures of fly ash (FA) and incinerated ash of sewage sludge (IASS). FA content in the mixtures was varied from 0 to 100 vol%. The mixtures were pressed into a rectangular body (3×0.5×0.4 cm
3) and the body was fired at the temperature range from 1000 to 1350°C for 1 h. Bulk density, apparent density, apparent porosity, and flexural strength were measured, and the microstructure of the cross section of fired mixtures were observed by SEM. The lightweight ceramics that have the apparent porosity under 1 g · cm
-3 was obtained by firing the mixtures with 72-80 vol% FA at the temperature range from 1200 to 1300°C. The lightweight ceramics did not sink in the water at all. The flexural strength of the mixtures with 72-90 vol% FA fired at up to 1150°C was over 5 MPa. The flexural strength of the fired mixtures was reduced rapidly when FA ratio increased up to a certain value. The reason was assumed that the FA spherical body was not connect enough due to the reduction of the content of IASS.
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Kenichi IMAEDA, Shinji YAMADA, Satarou YAMAGUCHI, Hiroshi SUMIDA, Yasu ...
2006 Volume 13 Issue 325 Pages
413-418
Published: November 01, 2006
Released on J-STAGE: March 07, 2011
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Exhaust dust from diesel engine car included particulate carbon with an average diameter of 7.2 μm consisted of organic carbon such as polycyclic aromatic hydrocarbon and inorganic carbon such as graphite, whereas exhaust dust from heavy oil boiler included particulate carbon with an average diameter of 37.2 μm mainly consisted of inorganic carbon. These dusts are found to undergo combustion decomposition from the
in-situ CO
2 detection using a crucible inside-coated with SiC by 2.45 GHz microwave irradiation. Diesel dust showed a CO
2 release spectrum with double peak associated with combustion of organic and inorganic carbons. The first peak corresponds to exothermic peaks at 300°C and 362°C in the DTA curve, and the second peak corresponds to an exothermic peak at 492°C. Boiler dust showed a CO
2 release spectrum with single peak associated with combustion of inorganic carbon, corresponding to an exothermic peak at 515°C.
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Kunihito KOUMOTO
2006 Volume 13 Issue 325 Pages
419-427
Published: November 01, 2006
Released on J-STAGE: August 16, 2011
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Innovative Activity toward 2030 on the Industrial Structure and the Life
Emile H. ISHIDA, Ryuzo FURUKAWA, Hirotaka MAEDA
2006 Volume 13 Issue 325 Pages
428-435
Published: November 01, 2006
Released on J-STAGE: August 16, 2011
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Junichi KAWASAKI
2006 Volume 13 Issue 325 Pages
436-440
Published: November 01, 2006
Released on J-STAGE: March 07, 2011
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Tsutomu SATO
2006 Volume 13 Issue 325 Pages
441-447
Published: November 01, 2006
Released on J-STAGE: March 07, 2011
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Toshinori OKURA
2006 Volume 13 Issue 325 Pages
448-455
Published: November 01, 2006
Released on J-STAGE: March 07, 2011
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Takayuki FURUTA, Tatsuo MURAKAMI
2006 Volume 13 Issue 325 Pages
456-462
Published: November 01, 2006
Released on J-STAGE: March 07, 2011
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Kiyotsugu YAMASHITA
2006 Volume 13 Issue 325 Pages
463-468
Published: November 01, 2006
Released on J-STAGE: August 16, 2011
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Michio NISHI
2006 Volume 13 Issue 325 Pages
469-472
Published: November 01, 2006
Released on J-STAGE: March 07, 2011
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Satoshi TERAMURA
2006 Volume 13 Issue 325 Pages
473-479
Published: November 01, 2006
Released on J-STAGE: August 16, 2011
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Extraction of Silicon Dioxide from Waste Colored Bottles by Alkali Fusion
Hidetsugu MORI
2006 Volume 13 Issue 325 Pages
480-485
Published: November 01, 2006
Released on J-STAGE: March 07, 2011
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Katsuhito NAKAZAWA
2006 Volume 13 Issue 325 Pages
486-490
Published: November 01, 2006
Released on J-STAGE: March 07, 2011
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Kazuhiro HASEGAWA, Katsunori TAKAHASHI
2006 Volume 13 Issue 325 Pages
491-495
Published: November 01, 2006
Released on J-STAGE: August 16, 2011
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Hiroshi KUGA
2006 Volume 13 Issue 325 Pages
496-503
Published: November 01, 2006
Released on J-STAGE: March 07, 2011
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Nobuo SAKURAI
2006 Volume 13 Issue 325 Pages
504-509
Published: November 01, 2006
Released on J-STAGE: March 07, 2011
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Kenji TAMURA, Hirohisa YAMADA
2006 Volume 13 Issue 325 Pages
510-515
Published: November 01, 2006
Released on J-STAGE: August 16, 2011
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Masato WAKAMURA
2006 Volume 13 Issue 325 Pages
516-519
Published: November 01, 2006
Released on J-STAGE: March 07, 2011
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Toshiyuki MORI, Motoi TAKAHASHI, John DRENNAN
2006 Volume 13 Issue 325 Pages
520-532
Published: November 01, 2006
Released on J-STAGE: March 07, 2011
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Yoshihiko OKADA
2006 Volume 13 Issue 325 Pages
533-537
Published: November 01, 2006
Released on J-STAGE: March 07, 2011
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Kiyoshi GOTO
2006 Volume 13 Issue 325 Pages
538-542
Published: November 01, 2006
Released on J-STAGE: March 07, 2011
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Osamu YAMAKAWA
2006 Volume 13 Issue 325 Pages
543-548
Published: November 01, 2006
Released on J-STAGE: August 16, 2011
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In the Case of Glass Bottles
Hiroyasu SAKAMURA, Katsuhito NAKAZAWA
2006 Volume 13 Issue 325 Pages
549-554
Published: November 01, 2006
Released on J-STAGE: March 07, 2011
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Kenjiro FUJIMOTO
2006 Volume 13 Issue 325 Pages
555-562
Published: November 01, 2006
Released on J-STAGE: March 07, 2011
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