1998 Fiscal Year Final Research Report Summary
A Research for Treatment and Reaction Mechanism for Defractory Industrial Wastewater
| Project/Area Number |
09680558
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
環境保全
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| Research Institution | Ube National College of Technology |
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Principal Investigator |
MURAKAMI Sadaaki Ube National College of Technology, Department of Biological and Chemical Engineering, Professor, 物質工学科, 教授 (00035065)
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| Co-Investigator(Kenkyū-buntansha) |
TAKEUCHI Masami Ube National College of Technology, Department of Biological and Chemical Engineering, Associate Professor, 物質工学科, 助教授 (30043889)
KAKINAMI Takaaki Ube National College of Technology, Department of Biological and Chemical Engineering, Professor, 物質工学科, 教授 (30224348)
FUKAGAWA Masayuki Ube National College of Technology, Department of Biological and Chemical Engineering, Professor, 物質工学科, 教授 (20043870)
IMAI Tuyoshi Yamaguchi University, Faculty of Engineering, Assciate Professor, 工学部, 助教授 (20263791)
ISHIKAWA Munetaka Osaka Institute of Technology, Faculty of Engineering, Professor, 工学部, 教授 (80101070)
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| Project Period (FY) |
1997 – 1998
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| Keywords | Industrial Wastewater / Defractory Compounds / Organic Compounds / Material Conversion / Ozonization / Electrochemical Oxidation / Microbial degradation / Reaction Mechanism |
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| Research Abstract |
(1)Purpose
Now a day, defractory compounds such as chlorinated organic compounds and environmental hormones become social problems because of their effects on human and animals. It is an urgent subject to develop the treatment process to decompose these compounds economically and efficiently. In this research, we have aimed to develop technology for treatment of extremely undegradable aromatic and aliphatic organic compounds and examine their reaction mechanisms.
(2)Results
Various refractory compounds were converted to be biodegradable ones with strongly oxidative ozone and activated chlorine which was produced electrochemically. The conversion mechanisms were made clear. These converted compounds were easily degraded to carbon dioxide by microbes.
The combined treatment process of biological and chemical technologies was applied to the following typical industries wastewaters and the pollution compounds involved were reduced efficiently : (1) wastewater from polyvinyl chloride manufacturing plant, (2) photographic wastewater, (3) wastewater from manufacturing process of a photoresist substrate for semiconductor, and (4) wastewater from electro-less plating process for electronics and information industries. The basic treatment processes for the above wastewaters were designed.
(3)Prospect
In future research, we will try to evaluate the treatment process developed in the present research from viewpoints concerning performance, cost and operation and to transfer our technology to industrial sector. And also, it is the subject to examine acute and chronic poisonous, hereditary and hormonal natures of treated waters.
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