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Ultrasonically Induced Enhancement in Treatment of Livestock Waste Sludge
- Authors
- Park, Jiho; Kim, Young Uk; Lee, Jong-Sub; Wang, Mian Chen
- Issue Date
- 7월-2009
- Publisher
- IOP PUBLISHING LTD
- Citation
- JAPANESE JOURNAL OF APPLIED PHYSICS, v.48, no.7
- Indexed
- SCIE
SCOPUS
- Journal Title
- JAPANESE JOURNAL OF APPLIED PHYSICS
- Volume
- 48
- Number
- 7
- ISSN
- 0021-4922
- Abstract
- The effects of ultrasound on the total mass, dewaterability, turbidity, and coliform counts of livestock waste sludge were investigated. The study involved laboratory tests and a pilot plant experiment under various test conditions including treatment time, ultrasonic energy level, and sludge volume. Laboratory test results showed that ultrasound caused the decreases in sludge particle size, capillary suction time, and coliform counts. The results of the pilot plant experiment proved that ultrasonic treatment significantly enhances the dewaterability, volume, mass, and water content of sludge. (C) 2009 The Japan Society of Applied Physics
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