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



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

Extended Abstract: File Not Uploaded