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1993 Fiscal Year Final Research Report Summary

The Removal of Nonpolar Micropollutants in the Waste Water using Coalescing Filtration

Research Project

Project/Area Number 04650496
Research Category

Grant-in-Aid for General Scientific Research (C)

Allocation TypeSingle-year Grants
Research Field 都市工学・衛生工学
Research InstitutionKYOTO UNIVERSITY

Principal Investigator

MATSUI Saburo  Kyoto University, Faculty of Engineering, 工学部, 教授 (90092808)

Co-Investigator(Kenkyū-buntansha) YAMADA Harumi  Kyoto University, Faculty of Engineering, 工学部, 助手 (40089123)
Project Period (FY) 1992 – 1993
KeywordsTetrachloroethylene / Herbicides / Coalescing Filtration / Adsorbant treated with n-hexane / Water solubility
Research Abstract

In this study, it was investigated that the removal characteristics of tetrachloroethlene and herbicides using coalescing filtration.
The results are obtained as follows :
1.The adsorption isotherm of adsorbant treated with n-hexane is approximated by the Freundlich equation. However, the values, k and 1/n of the adsorbant are lower than those of activated carbon.
2.After the column experiment using upward flow, it was confirmed that the formation of the coalescence of tetrachloroethylene was at the bottom of the column.
3.The adsorption tests using poly propyrene polimer particles treated with n-hexane showed that water solubility of the herbicides is related to the efficiency of the removal rate. Humic acids were not adsorbed on this type of polimer particles.
As described above, nonpolar micropollutants such as tetrachloroethylene and herbicides in the waste water are removed using coalescing filtration.

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Published: 1995-03-27  

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