381011 Sludge Treatment System Combined with Composting and Carbonization

Monday, November 17, 2014: 10:42 AM
M102 (Marriott Marquis Atlanta)
Nobusuke Kobayashi, Mechanical Engineering, Gifu University, Gifu, Japan, Yoshinori Itaya, Chemical Engineering, GIfu University, Gifu, Japan and Hisashi Hamabe, obu unity, obu, Japan

SLUDGE TREATMENT SYSTEM COMBINED

WITH C AND CAEBONIZATION

N. Kobayashi1*, Y. Itaya1, H. Hamabe Hisashi2

1*Department of Mechanical Engineering, Gifu University

Yanagido 1-1, Gifu-shi, Gifu, 501-1193, Japan

2Obu Unity Co., Ltd.

2 Kitasaki-cho Komaba 88 Obu-shi, Aich, 474-0001, Japan

*Corresponding author: Tel. +52-58-293-2621, E-mail:nsuke@gifu-u.ac.jp

Abstract: In order to reduce energy consumption during the sludge treatment process, sludge treatment combined with composting (bio-drying) and carbonization was carried out (See Figure 1). Moisture content of the sludge reduced less than 30% thorough the composting process without adding any fuel, and the addition of sludge char to compost increased the bio-drying rate significantly. A permitted range of initial sludge moisture content was 78% - 81% at the carbonization temperature of 673K - 1173K to sustain self-energy sludge treatment system.

Keywords: Sludge, Bio-drying, Sludge Composting, Carbonization

Fig. 1 New Sludge treatment system combined composting and carbonization


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