Application of Hydrothermal Treatment to High Concentrated Sewage Sludge for Anaerobic Digestion Process

*M. Orikawa -  Department of Environmental and Life Sciences, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi-shi, Aichi, 441-8580, Japan
H. Kamahara -  Department of Environmental and Life Sciences, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi-shi, Aichi, 441-8580, Japan
Y. Atsuta -  Department of Environmental and Life Sciences, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi-shi, Aichi, 441-8580, Japan
H. Daimon -  Department of Environmental and Life Sciences, Toyohashi University of Technology, 1-1 Hibarigaoka, Tempaku-cho, Toyohashi-shi, Aichi, 441-8580, Japan
Published: 30 Oct 2013.
Open Access
Citation Format:
Article Info
Section: Original Research Article
Language: EN
Full Text:
In Vol 2, No 3 (2013): October 2013
Statistics: 525 596
Abstract

Tomato and seaweed were produced by utilizing CO2 and heat discharged from power generation using biogas in Toyogawa biomass park, Japan. The biogas was obtained by anaerobic digestion with hydrothermal treatment. The hydrothermal treatment was applied to the high concentrated sewage sludge (22 % total solids (TS) dewatered sludge). The purpose of this study is to clarify the effect of hydrothermal treatment on the qualities of high concentrated sewage sludge, by analyzing particulate organic carbon (POC) and dissolved organic carbon (DOC). The hydrothermal treatment was investigated under 10-60 min of treatment time, 180-200 °C of temperature, 10-22 %-TS of sewage sludge concentration. The results showed that the DOC in each conditions increased through hydrothermal treatment. The highest DOC obtained was 67 % of total carbon concentration, when the temperature was 180 °C, treatment time was 60 min and sewage sludge concentration was 10 %-TS. Furthermore, the viscosity of treated sewage sludge was decreased by hydrothermal treatment. In batch anaerobic digestion test, methane gas production was confirmed. In addition, this study evaluated the energy balance of this system. Thus, the results of this study indicated that the possibility of application of hydrothermal treatment to high concentrated sewage sludge for anaerobic digestion process.

Keywords: anaerobic reaction, hydrothermal treatment, sewage sludge, solubilization

Article Metrics:

  1. Ministry of the Environment.. Report of present Industrial waste treatment 2011. URL http://www.env.go.jp/recycle/ waste/sangyo/sangyo_h-21a.pdf. Accessed on 16 December 2012
  2. Ohmura, T., Ukai, N., Horizoe, K., Sato, J., Ueda, R. & Horizoe, H. (2004) A Study on Hydrothemal Enhancement of Sewage Sludge Anaerobic Digestion. Mitsubishi Heavy Industries Technical Review, 41, 220-223.
  3. Hujimoto, S., Yanagida, T., Sakanishi, K., & Minowa, T. (2006) Powderization of sewage sludge by hydrothermal treatment. In Twelfth Fluidization and Particle Processing Symposiumu, 265-269. Tsukuba center, Ibaraki, Japan. : Fluidization and Particle Processing Symposium.
  4. Tania, F.C., Ricardo, I., Montserrat, P., Clarita, S., in Ackmez, M. ed. (2013) Biogas Production-Pretreatment Methods in Anaerobic Digestion. Wiley-Scrivener.
  5. Wei, Q., Chong, P., Wei, W., ZhongZhi, Z. (2011) Biogas production from supernatant of hydrothermally treated municipal sludge by upflow anaerobic sludge blanket reactor. Bioresource Technology, 102 , 9904-9911.
  6. Claire, B., Jean, P.D., Helene, C. (2008) Effets of thermal treatments on five different waste activated sludge samples solubilisation, physical properties and anaerobic digestion. Chemical Engineering Journal, 139, 236-244 .
  7. Kobayashi, S., Nomura, S., Hujimura, Y., Tsuboi, H., Kimoto, K., Itaya, Y. (2011) Effects of hydrothermal treatment on sewage sludge treatment residues characteristics. Kagaku Kogaku Ronbunsyu, 37, 460-467.
  8. Mitsubishi Nagasaki Mashinery MFG. CO., LTD. (October 2012). URL http://www.mnm.co.jp/product/kankyo/sewage-grime.html. Accessed on 12 December 2012.

The Authors submitting a manuscript do so on the understanding that if accepted for publication, copyright of the article shall be assigned to International Journal of Renewable Energy Development and Center of Biomass and Renewable Energy, Department of Chemical Engineering Diponegoro University as publisher of the journal.

Copyright encompasses exclusive rights to reproduce and deliver the article in all form and media, including reprints, photographs, microfilms and any other similar reproductions, as well as translations. The reproduction of any part of this journal, its storage in databases and its transmission by any form or media, such as electronic, electrostatic and mechanical copies, photocopies, recordings, magnetic media, etc. , will be allowed only with a written permission from International Journal of Renewable Energy Development and Center of Biomass and Renewable Energy, Department of Chemical Engineering Diponegoro University.

International Journal of Renewable Energy Development and Center of Biomass and Renewable Energy, Department of Chemical Engineering Diponegoro University, the Editors and the Advisory International Editorial Board make every effort to ensure that no wrong or misleading data, opinions or statements be published in the journal. In any way, the contents of the articles and advertisements published in the International Journal of Renewable Energy Development are sole and exclusive responsibility of their respective authors and advertisers.