文献一覧: 野本直樹 (著者)

1 0 0 0 インド・アグラ市下水処理場で形成されたDHS担体付着汚泥の性状

著者: 上村繁樹大久保努野本直樹原田秀樹
出版者: 公益社団法人日本下水道協会
雑誌: 下水道協会誌 (ISSN:00214639)
巻号頁・発行日: vol.56, no.686, pp.114-120, 2019

本報では,インド国ウッタルプラデーシュ州アグラ市において建設された,処理水量5,000m3/dのDHS(Down-flow Hanging Sponge)実規模実験プラントで形成されたDHSスポンジ担体付着汚泥(アグラDHS担体汚泥)の性状について報告する.アグラDHS担体汚泥は,日本の通常の初沈流出下水で形成されたものと比較して,非常に粘土質で,汚泥濃度が約100g-DS/L-spongeと高く,そのうち60%近くを無機物質が占めていた.またその表面はThiothrix. spからなる硫黄マットで覆われていた.アグラDHS担体汚泥の無機成分をX線回折と蛍光X線分析で解析した結果,主にカオリン類という粘土類が検出された.さらにアグラDHS担体汚泥に対する初沈流出下水の処理性能試験および水の浸透度試験を行った結果,カオリン類の蓄積の影響により,スポンジ担体への水の浸透が阻害され,DHSの処理性能に悪影響を及ぼしている可能性が示唆された.

2020-05-15 11:37:53
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1 0 0 0 IR ペルーで稼働する最新の下水処理場の視察報告

著者: 野本直樹多川正荒木信夫大久保努上村繁樹
雑誌: 宇部工業高等専門学校研究報告 (ISSN:03864359)
巻号頁・発行日: no.66, pp.5-9, 2020-03

To investigate the hygienic environment in Peru, we visited Cusco sewage treatment plant. The altitude of Cusco sewage treatment plant is 3,193 m being considered that it is one of the treatment plants installed at the highest elevation in the world. It is the newest plant in Peru and the present facility has run since 2014. The treatment type is trickling filter with PVC media. One of the features for being installed at high altitude is installing blowers to supply oxygen despite that trickling filter substantially does not need aeration. It is because of the low oxygen concentration in the air at high altitude. It should be noticed that the plant was entirely controlled by modernized and sophisticated system despite that it was built in developing country.

2020-05-15 10:51:51
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https://ci.nii.ac.jp/naid/120006826018

1 0 0 0 IR カンボジアシェムリアップ州における衛生環境調査

著者: 野本直樹大久保努上村繁樹
出版者: 宇部工業高等専門学校
雑誌: 宇部工業高等専門学校研究報告 (ISSN:03864359)
巻号頁・発行日: no.64, pp.6-12, 2018-03

We had investigated about hygienic environment concerning on waste management of people who lives on the water at Siem reap, Cambodia. The people who lives on the water, uses water from lake for daily life. At the same time, they also throw wastewater which includes toilet and raw garbage into the lake. However, the water quality of the lake, especially the organic matter concentration detected in the water seems similar to 15 years ago. Regarding waste, it has high ratio of raw garbage. As for valuable resource, informal recycle system seems to be developing. Despite the poor environment, there are still some waste picker spotted especially at the village garbage collection point because the job gives higher income than farmer.