Application of hydrothermal reaction for excess sludge reuse as carbon sources in biological phosphorus removal SCIE SCOPUS

Cited 8 time in WEB OF SCIENCE Cited 0 time in Scopus
Title
Application of hydrothermal reaction for excess sludge reuse as carbon sources in biological phosphorus removal
Author(s)
Kim, K; Fujita, M; Daimon, H; Fujie, K
KIOST Author(s)
Kim, Kyoung Rean(김경련)
Publication Year
2005
Abstract
An application of hydrothermal reaction was investigated to reuse excess sludge as carbon sources for enhancement of biological phosphorus removal. Under the tested conditions solubilization of treated excess sludge did not present much variation, sustaining around 65%, except the results obtained at 400 degrees C. Biodegradability of excess sludge was improved through its content change by the reaction, without much reduction of carbon contents even in 7 min. From the results of respirometric test, readily biodegradable substrate was found at 300 degrees C. Then its portion of reaction products increased with increasing reaction temperature. In the readily biodegradable substrate, acetic and propionic acid, which are useful carbon sources for phosphorus accumulating microorganism under anaerobic condition, increased with increasing reaction temperature. Hydrothermal reaction might be accepted as suitable pretreatment method to treat excess sludge prior to biological treatment process. This technology also secures excess sludge reuse, enhancing biological phosphorus removal and improvement of biological treatment process.
ISSN
0273-1223
URI
https://sciwatch.kiost.ac.kr/handle/2020.kiost/5112
Bibliographic Citation
WATER SCIENCE AND TECHNOLOGY, v.52, no.10-11, pp.533 - 541, 2005
Publisher
IWA PUBLISHING
Subject
ACTIVATED-SLUDGE; SUPERCRITICAL WATER; WASTE-WATER; MODEL NO-2; RECOVERY; PARAMETERS; OXIDATION; BIOMASS
Keywords
biological phosphorus removal; carbon source; excess sludge reuse; hydrothermal reaction; readily biodegradable substrate
Type
Article
Language
English
Document Type
Article; Proceedings Paper
Publisher
IWA PUBLISHING
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