Publications by authors named "Yoshihiro Kirishima"
Article Synopsis
- The study examined the effectiveness of a down-flow hanging sponge (DHS) reactor integrated with a sedimentation tank for wastewater treatment over 500 days with various hydraulic retention times (HRT).
- Despite the shortest HRT of 0.3 hours leading to nitrogen concentrations that affected nitrification, the effluent's BOD remained stable at around 4.0 mg·L, and all discharge standards were met during the experiment.
- The research found that the population of comammox bacteria in the sponge biomass (5.58 to 13.2 × 10 copies·mL) suggested that these sponges create a suitable environment for their growth, potentially enhancing nitrification in the process.
Down-flow hanging sponge (DHS) reactor that is sponge-based trickling filter was considered to be an alternative aerobic treatment system for low strength sewage treatment under tropical conditions. This study aims to determine the process performance of the DHS reactor combined with a pre-treatment sedimentation tank (SED) system installed at the municipality sewage treatment plant in Khon Kaen, Thailand over, 1,600 days. The DHS reactor was operated with three operational periods: low (0.
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