Economic evaluation of combined treatment for sludge from drinking water and sewage treatment plants in Japan

Abstract

Research Article| May 01 2009 Economic evaluation of combined treatment for sludge from drinking water and sewage treatment plants in Japan Tomoaki Miyanoshita; Tomoaki Miyanoshita 1Organo Corporation, Nishionuma 4-4-1, Sagamihara-shi, Kanagawa 229-0012, Japan E-mail: miyano-t@organo.co.jp Search for other works by this author on: This Site PubMed Google Scholar Naoki Oda; Naoki Oda 2Ishigaki Corporation, Nishihara 3-3-31, Yodogawa-ku, Osaka 532-0003, Japan Search for other works by this author on: This Site PubMed Google Scholar No Hayashi; No Hayashi 3Japan Water Research Center, Toranomon 2-8-1, Minato-ku, Tokyo 105-0001, Japan Search for other works by this author on: This Site PubMed Google Scholar Masahiro Fujiwara; Masahiro Fujiwara 3Japan Water Research Center, Toranomon 2-8-1, Minato-ku, Tokyo 105-0001, Japan Search for other works by this author on: This Site PubMed Google Scholar Hiroaki Furumai Hiroaki Furumai 4The University of Tokyo, Hongo 7-3-1, Bunkyo-ku, Tokyo 113-0033, Japan Search for other works by this author on: This Site PubMed Google Scholar Journal of Water Supply: Research and Technology-Aqua (2009) 58 (3): 221–227. https://doi.org/10.2166/aqua.2009.043 Article history Received: May 01 2008 Accepted: September 02 2008 Views Icon Views Article contents Figures & tables Video Audio Supplementary Data Share Icon Share Facebook Twitter LinkedIn MailTo Tools Icon Tools Cite Icon Cite Permissions Search Site Search Dropdown Menu toolbar search search input Search input auto suggest filter your search All ContentAll JournalsThis Journal Search Advanced Search Citation Tomoaki Miyanoshita, Naoki Oda, No Hayashi, Masahiro Fujiwara, Hiroaki Furumai; Economic evaluation of combined treatment for sludge from drinking water and sewage treatment plants in Japan. Journal of Water Supply: Research and Technology-Aqua 1 May 2009; 58 (3): 221–227. doi: https://doi.org/10.2166/aqua.2009.043 Download citation file: Ris (Zotero) Reference Manager EasyBib Bookends Mendeley Papers EndNote RefWorks BibTex In Japan, water supply utilities need to renovate their sludge treatment facilities. This study therefore evaluated treatment of the sludge from drinking water treatment plants (DWTP) by two approaches: an individual system and a combined system. In the individual treatment scenario, the DWTP treats the sludge using its own facilities, whereas in the combined treatment scenario, DWTP sludge is transported to a sewerage system. The construction cost is much lower for combined treatment than individual treatment, while the operation cost is higher for combined treatment owing to the sewer charge. However, the additional sewer charge is less than the increase in cost for constructing an individual sludge treatment system. With the combined treatment system, sludge must be transported from the DWTP to a sewage sludge treatment plant (SSTP). A cost analysis reveals that sludge transportation by road is less beneficial than by pipeline in the sewerage system unless the plants are nearby. In economic terms, combined treatment and a sludge liquor pipeline is the most advantageous of all cases. The total cost depends on the given conditions and assumed unit costs. Sensitive parameters are the sewer charge and the distance between the DWTP and sewer pipeline. cost analysis, drinking water treatment, sewage works, sewer charge, sludge treatment, turbidity This content is only available as a PDF. © IWA Publishing 2009 You do not currently have access to this content.