Evaluating the resilience of a full-scale down-flow hanging sponge reactor to shock-loadings-Reference-Cited by-同舟云学术

Evaluating the resilience of a full-scale down-flow hanging sponge reactor to shock-loadings

Published:2021-12-02 Issue:1 Volume:17 Page:223-233
ISSN:1751-231X
Container-title:Water Practice and Technology
language:en
Short-container-title:

Author:

Onodera Takashi¹^ORCID,Okubo Tsutomu²^ORCID,Takayama Daisuke³,Syutsubo Kazuaki¹^ORCID,Yamaguchi Takashi³,Uemura Shigeki²,Ohashi Akiyoshi⁴,Harada Hideki⁵

Affiliation:

1. Regional Environment Conservation Division, National Institute for Environmental Studies, 16-2 Onogawa, Tsukuba, Ibaraki 305-8506, Japan

2. Department of Civil and Environmental Engineering, National Institute of Technology, Kisarazu College, 2-11-1 Kiyomidaihigashi, Kisarazu, Chiba 292-0041, Japan

3. Department of Civil and Environmental Engineering, Nagaoka University of Technology, 1603-1 Kamitomioka, Nagaoka, Niigata 940-2188, Japan

4. Department of Social and Environmental Engineering, Hiroshima University, 1-4-1 Kagamiyama Higashi, Hiroshima 739-8527, Japan

5. New Industry Creation Hatchery Center, Tohoku University, 6-6-04, Aza-Aoba, Aramaki, Aoba-ku, Sendai, Miyagi 980-8579, Japan

Abstract

Abstract The effect of shock-loading on the performance of a full-scale down-flow hanging sponge (DHS), used to treat effluent from an up-flow anaerobic sludge blanket treating municipal sewage, was evaluated. This full-scale DHS reactor comprises a polyurethane sponge that retains the sludge. It has a capacity of 500 m3/day and, at the time of this study, had been operating at a sewage treatment plant in India for more than 1,300 days. The DHS reactor was exposed to shock loadings of organics at double the normal rate for 400 min under summer and winter conditions. The results showed that the DHS reactor maintained stable operation under the organic shock loading and that it returned to a steady state soon after restart, confirming that the reactor was resilient to organic shock loadings.

Publisher

IWA Publishing

Subject

Water Science and Technology

Link

https://iwaponline.com/wpt/article-pdf/17/1/223/990413/wpt0170223.pdf

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