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Effect of Activated Sludge, Which Is Produced by the Treatment of Waste Water at a Chemical Factory, on Chinese Cabbage

Bulletin of the Faculty of Agriculture, Yamaguchi University Volume 28 Page 7-16
published_at 1977
Title
化学工場の排水処理により得られる活性汚泥の結球白菜に対する肥効
Effect of Activated Sludge, Which Is Produced by the Treatment of Waste Water at a Chemical Factory, on Chinese Cabbage
Creators Koga Keiichi
Creators Tanaka Kazuo
Source Identifiers
The manuring effects of the activated sludge, which is produced from the waste water at a chemical factory, were studied on the growth of chinese cabbage. The results obtained were as follows. (1) The yield of chinese cabbage increased with the increasing amount of applied activated sludge up to 1977 kg/10a. (2) Addition of perlite to the wet activated sludge brought not only the decrease of stickness of the activated sludge, but also the yield increase of chinese cabbage. (3) The most part of nitrogen in the activated sludge was slow-release nitrogen compounds, but NH_4-N and NO_3-N might be also cintained in a small portion. (4) The examined activated sludge contained very little cmount of heavy metals, and its application to chiese cabbage did not result in the absorption increase of heavy metals. (Received June 30, 1977)
Subjects
農学 ( Other)
Languages jpn
Resource Type departmental bulletin paper
Publishers 山口大学農学部
Date Issued 1977
File Version Not Applicable (or Unknown)
Access Rights metadata only access
Relations
[ISSN]0513-1715
[NCID]AN00244250
Schools 農学部