Výsledky vyhledávání - "Hiroyuki Okui"

Benefit and its numerical evaluation of rainwater storage and infiltration facilities for sustainable water cycle in urban areas

Autor: Jouichi Kouso, Masahiro Imbe, Hiroyuki Okui

Publikováno v: Journal of Japanese Association of Hydrological Sciences. 38:43-54

The necessity of rainwater storage and infiltration facilities has increased in the measures and policies regarding the sustainable water cycle in urban areas as understood by the administrative history in the last 30 years regarding rainwater storag

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b5fd496e283f20468b03142df1fcd07b
https://doi.org/10.4145/jahs.38.43

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Technological proposal for the improvement of the hydrological system

Autor: Mamoru Hirose, Hiroyuki Okui

Publikováno v: Proceedings of the Symposium on Global Environment. 11:277-283

The establishment of program for the soundness of hydrological system has been done actively in each watershed by the administrative side, but it has struck to the big wall, small progress ratio and invisible effect in the stage which keeps executing

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::6589664227068c91201b2ec0fe6f721e
https://doi.org/10.2208/proge.11.277

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Treatment of dilute wastewater in a UASB reactor at a moderate temperature: Performance aspects

Autor: Hiroyuki Okui, Hideki Harada, Lalit K. Agrawal

Publikováno v: Journal of Fermentation and Bioengineering. 83:179-184

The treatability of dilute wastewater by a UASB reactor was evaluated. After being seeded with digested sewage sludge, a 110-l reactor was operated at 25°C under continuous feeding with synthetic wastewater having a COD of 300 mg/l for over 700 d. T

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b6ce4928039fe71e4d1be3b2e1ae127f
https://doi.org/10.1016/s0922-338x(97)83579-9

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Treatment of dilute wastewater in a UASB reactor at a moderate temperature: Microbiological aspects

Autor: Lalit K. Agrawal, Hiroyuki Okui, Hideki Harada, I-Cheng Tseng

Publikováno v: Journal of Fermentation and Bioengineering. 83:185-190

Changes in the activity and bacterial populations of various trophic groups and the morphology of the sludge over time were investigated in a UASB reactor treating dilute wastewater. The specific methanogenic activity on day 400 was 6.9 (0.30 kg CH 4

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e75141d782bd2da76cfa63c6fc193667
https://doi.org/10.1016/s0922-338x(97)83580-5

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Monitoring and Analysis of Implemented Infiltration System over Past 20 Years

Autor: Chiyozi Hashimoto, Masahiro Imbe, Hiroyuki Okui, Katsumi Musiake

Publikováno v: Global Solutions for Urban Drainage.

After implementation of the first rainwater infiltration system in Japan at the housing complex named Akisima Tsutsujigaoka Heighs in 1981, more than 20 years has been passed. Rainwater infiltration system is comprised of permeable connection box, pe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::daa0ab303df062ead1d0b0b791188f33
https://doi.org/10.1061/40644(2002)36

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