Continuous Degradation of Tetrachloroethene by a Two-Stage Anaerobic/Aerobic Bioreactor System.
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- NUMATA Masahiko
- Dowa Mining, Co., Ltd
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- MATSUURA Kenichi
- Dowa Mining, Co., Ltd
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- YUKI Yumiko
- Dowa Mining, Co., Ltd
Bibliographic Information
- Other Title
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- 嫌気・好気直列バイオリアクターを用いたテトラクロロエチレンの連続分解
- イヤケ コウキチョクレツ バイオリアクター オ モチイタ テトラクロロエチレン ノ レンゾク ブンカイ
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Abstract
Degradation of tetrachloroethene (PCE) by using a two-stage anaerobic/aerobic bioreactor system was investigated. A PCE-dechlorinating anaerobic consortium was immobilized on the surface of crushed scallop shells. The maximum rate of PCE dechlorination to cis-1, 2-dichloroethene (cDCE) with an anaerobic fixed-bed upflow reactor containing the biofilm on the shell was 30μmol PCE·l-1 reactor volume·h-1. A phenol-oxidizing bacterium, capable of co-metabolic degradation of cDCE was immobilized in κ-carrageenan gel beads. Gaseous cDCE purged from effluent of the anaerobic reactor was degraded with an air-lift aerobic reactor containing the immobilized cells. To degrade PCE continuously, yeast extract was added to the anaerobic reactor feed, and phenol was added to the aerobic reactor feed. The life of the two-stage anaerobic/aerobic bioreactor had been tested for one month at a PCE supply rate of 17μmol PCE·l-1 reactor volume·h-1. The activity of the aerobic reactor decreased gradually, although the activity of the anaerobic reactor was stable during the experimental period.
Journal
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- Journal of Japan Society on Water Environment
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Journal of Japan Society on Water Environment 22 (6), 485-490, 1999
Japan Society on Water Environment
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Details 詳細情報について
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- CRID
- 1390001205080269824
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- NII Article ID
- 10004452572
- 10004452567
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- NII Book ID
- AN10372439
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- COI
- 1:CAS:528:DyaK1MXltFSju7o%3D
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- ISSN
- 18813690
- 09168958
- http://id.crossref.org/issn/09168958
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- NDL BIB ID
- 4768646
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed