この論文は、製紙工場の排水処理におけるフラボバクテリアに対する弱正弦波磁界の効果について述べている。実験の準備、プロトコールと必要なパラメターなどについても簡単に述べている。この研究は、純粋のフラボバクテリア菌を用いて弱正弦波磁界にばく露し、異なるばく露周波数、強度、ばく露時間で最適な反応条件を調査した。
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The efficacy of Flavobacterium species exposed to static magnetic field in treatment of the effluent is tested for its ability for bioremediation of lignin rich effluents from paper and pulp mills.
ばく露 | パラメータ |
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ばく露1:
10 Hz
ばく露時間:
repeated daily exposure, 5 h/day for 3, 6, 9, 12, 15, 18 and 20 days
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ばく露2:
1 Hz
ばく露時間:
repeated daily exposure, 5 h/day for 3, 6, 9, 12, 15, 18 and 20 days
|
|
ばく露3:
10 Hz
ばく露時間:
continuous for 30 h, 60 h, 90 h and 120 h
|
|
ばく露4:
1 Hz
ばく露時間:
continuous for 30 h, 60 h, 90 h and 120 h
|
周波数 | 10 Hz |
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タイプ |
|
波形 |
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ばく露時間 | repeated daily exposure, 5 h/day for 3, 6, 9, 12, 15, 18 and 20 days |
ばく露の発生源/構造 |
|
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ばく露装置の詳細 | 120 flasks were placed in the center of the disc shaped enclosure made by the coil system. |
Additional information | The coil system consisted of 2 pairs circular coils. The inner pair had a larger diameter and the outer pair had a smaller diameter. Both pairs were mounted co-planar and co-axially which provided a disc shaped volume with highly uniform magnetic field. The coils were kept with their axis vertical so that the axis of the magnetic field passed the test objects vertically. Controls were performed but no details regarding its setup are provided in the article. |
Flavobacterium species were found to have a four fold increase with respect to growth when exposed to static magnetic field of 10 Hz, 100 nT for 30 hours (5 hours per day for 6 days). The biological oxygen demand, chemical oxygen demand, lignin, phenol and protein content were found reduced in the effluent using static magnetic field treated cells.
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