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Enhancement in Biodegradability of Excess Sludge by Using a Centrifugal Vibration Mill
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- Sano Akira
- Department of Chemical Engineering, Nagoya University
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- Bando Yoshiyuki
- Department of Chemical Engineering, Nagoya University
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- Yasuda Keiji
- Waste Treatment Facility, Nagoya University
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- Nakamura Masaaki
- Department of Chemical Engineering, Nagoya University
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- Senga Akira
- Chuo Kakohki Co., Ltd.
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- Kiyokawa Eimei
- Chuo Kakohki Co., Ltd.
Bibliographic Information
- Other Title
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- Enhancement in Biodegradability of Excess Sludge by Using a Centrifugal Vibration Mill(SC)
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Description
In order to enhance the biodegradability of the excess sludge generated from the wastewater treatment, a centrifugal vibration mill was used to mill the activated sludge. The centrifugal vibration mill had a column with a volume of about 10 × 10–3 m3 and the sphere stainless steel balls were used. The operational conditions were changed, and the biodegradability of milled sludge was evaluated by using the BOD. The ball diameter of 7.9 mm was optimum in this experimental condition. The biodegradability of sludge increased with the milling time and became constant beyond 12 minutes. It had a maximum when the effective volume fraction (the ratio of the sludge volume to the void volume in ball bed) was unity.
Journal
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- JOURNAL OF CHEMICAL ENGINEERING OF JAPAN
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JOURNAL OF CHEMICAL ENGINEERING OF JAPAN 38 (6), 446-449, 2005
The Society of Chemical Engineers, Japan
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Details 詳細情報について
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- CRID
- 1390282679546485120
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- NII Article ID
- 130000019362
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- NII Book ID
- AA00709658
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- ISSN
- 18811299
- 00219592
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- NDL BIB ID
- 7340496
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- Text Lang
- en
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- Data Source
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- JaLC
- NDL Search
- Crossref
- CiNii Articles
- OpenAIRE
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- Abstract License Flag
- Disallowed