Polytechnic University of Valencia Congress, 21st International Drying Symposium

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Drying characteristics of wastewater sludge according to outside air inflow conditions
Sang Hyun Oh, Ki Ho Park, Byoung Hyuk Yu, Sung Il Kim

Last modified: 02-01-2019


The purpose of this study is to analyze the changes of drying efficiency according to the inflow conditions of outside air into the drying equipment during the drying process in order to reduce the energy used in the drying process of sludge. We conducted the experiment using a vertical thin film dryer. Materials used for the experiment are sewage sludge. As a result of the study, higher drying efficiency was obtained in the case of outside air inflow than in the case of no outside air inflow. In addition, optimum condition of outside air inflow was derived.

Keywords: Drying; Sludge; Drying efficiency; Air inflow condition


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