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Research Article Open access CC BY 4.0

Pursuing Simple and Low-cost Operation for Sludge Reduction via a Self-Oxidized Reduction Process in a Field-Scale Sewage Treatment Plant

Ryoko Sekifuji, Satoru Takinami, Yukinori Harada, Masashi Watanabe, Masafumi Tateda

Journal of Scientific Research and Reports · pp. 1–8 · Published 5 Mar 2018

10.9734/JSRR/2018/40146

Abstract

Aims: A self-oxidized sludge reduction process was installed in a municipal sewage treatment plant at full scale in order to verify the efficiency of the process. Study Design: A full-scale (100 m3) self-oxidized sludge reduction tank was constructed in a municipal sewage treatment plant and was operated for collecting data. Place and Duration of Study: The sewage treatment plant was located in a city of Toyama Prefecture, Japan.  The field test was conducted from FY 2011 to 2015.  Methodology: By observing BOD, SS, and CODMN and controlling them to conform to industrial wastewater discharge standards, the cost reduction of waste sludge disposal resulting from sludge mass reduction via the self-oxidized process was evaluated.  Results: In this study, the operation cost for a local small government in charge of the plant was reduced by more than 50,000 USD per year. Conclusions: The self-oxidized method can be an alternative sludge reduction method.

Sewage treatment sludge reduction self-oxidized process MLSS WSSS.

References (2)

  1. 1 Sewage Sludge as a Biomass Resource for the Production of Energy: Overview and Assessment of the Various Options [DOI]
  2. 2 Optimal design and operation of activated sludge processes: State-of-the-art [DOI]

Cited by 2

Case Study of a Cost Reduction Trial Based on Postponement of Sludge Withdrawal from an Oxidation Ditch Process with a Small Sludge-Reduction Process

RYOKO SEKIFUJI, CHIEU VAN LE, YOSHIKI TAKABE · Japanese Journal of Water Treatment Biology · 2023

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