R&D Needs-Drying of Sludges

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Abstract
Sludge management is very important subject for the environmental issue in many industrialized countries, because its generated volume is the largest in all generated wastes. In sludge management field, role of drying is becoming more needful as increase of difficulty for sludge disposal and need for sludge drying is expected in the future. In this paper, the present status of drying of construction sludge, food industry sludge and municipal sludge are mentioned as concrete examples. To respond these needs, it is necessary to advance further R & D