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http://dx.doi.org/10.5762/KAIS.2011.12.2.979

Study on solubilization of sewage sludge using electrolysis techniques  

Lee, Ji-Sun (Dept. of Semiconductor & Display Engineering, Graduate School of BK21, Hoseo University)
Chang, In-Soung (Dept. of Environmental Engineering, Hoseo University)
Lee, Chul-Ku (KumKang Environmental Engineering Co.)
Joung, Seun-Young (KumKang Environmental Engineering Co.)
Publication Information
Journal of the Korea Academia-Industrial cooperation Society / v.12, no.2, 2011 , pp. 979-984 More about this Journal
Abstract
Although sludge production has been increased due to the number of the wastewater treatment plants expanded, needs of the techniques for the sludge reduction and disposal has been issued importantly because the sludge dumping to ocean is prohibited from 2012 by the London Dumping Convention. Therefore, the sludge solubilization using electrolysis as an alternative techniques for the sludge disposal was carried out in this study. Iridium coated titanium based insoluble electrodes were used and 20 volt was applied to the electrolysis reactor using DC power supply. Supernatants of the treated sludge was monitored: The soluble COD, TN, TP of it was increased to 151%, 22% and 6% respectively. And the sludge floc size distribution was changed, that is, the flocs ranged from 0.1 to 1.0 ${\mu}m$ were increased. All of these results indicate that the cells were lysed and the internal matters bursted out of the cell after electrolysis. As well as the reduction of the sludge production, the soluble organic matters from the cells could be used as an external carbon sources in the advanced wastewater treatment plants.
Keywords
Sewage sludge; Solubilization; Electrolysis;
Citations & Related Records
Times Cited By KSCI : 2  (Citation Analysis)
연도 인용수 순위
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