著者

山本 攻 澤地 實

出版者

一般社団法人 廃棄物資源循環学会

雑誌

廃棄物資源循環学会誌 (ISSN:18835864)

巻号頁・発行日

vol.28, no.1, pp.86-90, 2017-02-28 (Released:2020-04-17)

参考文献数

32

著者

澤地 實 山本 攻

出版者

一般社団法人 廃棄物資源循環学会

雑誌

廃棄物資源循環学会誌 (ISSN:18835864)

巻号頁・発行日

vol.27, no.6, pp.422-426, 2016-11-30 (Released:2020-05-21)

参考文献数

19

著者

山本 耕司 鶴保 謙四郎 細川 守 山本 攻

出版者

公益社団法人 日本薬学会

雑誌

衛生化学 (ISSN:0013273X)

巻号頁・発行日

vol.27, no.5, pp.278-284, 1981-10-31 (Released:2008-05-30)

参考文献数

10

被引用文献数

1

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In order to elucidate the effect of fiber reinforced plastics (FRP) for water works on the water quality, the time course of elution of organic matters from FRP test pieces was investigated and the free available chlorine consumption by test pieces was also studied. Total organic carbon (TOC) of the water, in which test pieces were immersed, was regarded as the amount of organic matters eluted from test pieces to water. The amount eluted to distilled water was propotional to the surface area of test pieces, and entirely dependent on the water temperature. The similar tendency was observed in the amount of styrene contained in the eluted organic matters. Gel filtration of the eluate showed that the organic matter contained high molecular weight substances. The organic matter was also eluted from the test pieces which had been washed with tap water during 12 months. The chlorine had no effect on the elution profile of organic matters from test pieces. The time course of elution of styrene, however, showed a time lag in the presence of chlorine. The styrene reacted with the chlorine in water and the product was 1-phenyl-2-chloroethanol. The chlorine consumption by test pieces, however, was not able to be estimated by the amount of eluted styrene. A linear relationship existed between the decrease of chlorine and the square root of time. Its slope was propotional to the initial concentration of chlorine and the surface area of test pieces. The chlorine consumption by test pieces could be explained by the assumption that the diffusion of chlorine into the interface between test pieces and water was the rate-determining step.

著者

山本 攻

出版者

Osaka Urban Living and Health Association

雑誌

生活衛生 (ISSN:05824176)

巻号頁・発行日

vol.51, no.3, pp.178-184, 2007 (Released:2007-06-08)

参考文献数

13

被引用文献数

4

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In about 1950, the surrounding coastal cities began to deposit in Osaka Bay the human excreta that could not be used or disposed of on land. In connection, researchers from the Osaka Municipal Hygienic Laboratory undertook a rapid survey of the state of pollution in the Bay and established that, while pollution was present in the sea disposal area, it was severer at the mouth of rivers. After the survey, the researchers joined the research committee chaired by Professor Miura of Kyoto University, which operated with the aid of the Scientific Experimental Research Fund of the Ministry of Education, and studied pollution in Osaka Bay, the effect of sea disposal on fish, the behavior of the deposited excreta in the sea, and the viability of E. coli in seawater.The present material was written to commemorate the work of the Hygienic Laboratory in the study of human excreta disposal in Osaka Bay. It consists of a history of human excreta treatment and disposal in Osaka City up to the beginning of sea disposal, related laws during the same period, the situation regarding sea disposal and pollution in the Bay, and the activities of a committee of Osaka Bay coastal cities set up to research human excreta disposal problems.

著者

澤地 實 山本 攻

出版者

一般社団法人 廃棄物資源循環学会

雑誌

廃棄物資源循環学会誌 (ISSN:18835864)

巻号頁・発行日

vol.27, no.6, pp.422-426, 2016