DC Field | Value | Language |
---|---|---|
dc.contributor.author | Lee, Gwangtaek | ko |
dc.contributor.author | Lee, Ilgyu | ko |
dc.contributor.author | Han, Jong-In | ko |
dc.date.accessioned | 2019-11-11T02:20:06Z | - |
dc.date.available | 2019-11-11T02:20:06Z | - |
dc.date.created | 2019-11-11 | - |
dc.date.created | 2019-11-11 | - |
dc.date.created | 2019-11-11 | - |
dc.date.issued | 2019-10 | - |
dc.identifier.citation | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING, v.7, no.5 | - |
dc.identifier.issn | 2213-2929 | - |
dc.identifier.uri | http://hdl.handle.net/10203/268310 | - |
dc.description.abstract | Waste-activated sludge (WAS) is typically processed very slowly and only to a certain extent in anaerobic digestion (AD), typically necessitating pre-treatment. In this study, we developed a new and powerful way of pretreating WAS, which is a combination of hydrodynamic cavitation (HC) and alkaline treatment, and examined it for its efficacy. The combined treatment yielded the highest disintegration degree (DD) of 48.4%, while HC alone produced only 11.9% of DD and alkaline alone did 16.2%. The pre-treated sludge led to much enhanced methane production compared with the untreated one; 80.7 ml/g CODadded was the largest amount of CH4 obtained with the pre-treated sludge, while 37.3 ml/g CODadded with the untreated one. The distinctive efficacy of the HC was further exploited to remove nutrients from anaerobic granular sludge (AGS) in a beneficial way: namely, the HC-mediated recovery of N/P by way of struvite precipitation. The highest phosphate removal was found at pH 10 with HC, which was more than twice the value of a simple stirring (63 mg PO43-/L by simple stirring versus 150 mg PO43-/L by HC). It appeared that HC is indeed a sure option for WAS pre- and post-treatment to improve biodegradability and nutrient recovery, respectively. | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCI LTD | - |
dc.title | A combined method of hydrodynamic cavitation and alkaline treatment for waste-activated sludge solubilization; N/P recovery from anaerobic granular sludge | - |
dc.type | Article | - |
dc.identifier.wosid | 000492151400072 | - |
dc.identifier.scopusid | 2-s2.0-85072080020 | - |
dc.type.rims | ART | - |
dc.citation.volume | 7 | - |
dc.citation.issue | 5 | - |
dc.citation.publicationname | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING | - |
dc.identifier.doi | 10.1016/j.jece.2019.103329 | - |
dc.contributor.localauthor | Han, Jong-In | - |
dc.contributor.nonIdAuthor | Lee, Ilgyu | - |
dc.description.isOpenAccess | N | - |
dc.type.journalArticle | Article | - |
dc.subject.keywordAuthor | Waste-activated sludge (WAS) | - |
dc.subject.keywordAuthor | Sludge pre-treatment | - |
dc.subject.keywordAuthor | Hydrodynamic cavitation | - |
dc.subject.keywordAuthor | Methane production | - |
dc.subject.keywordAuthor | Struvite formation | - |
dc.subject.keywordPlus | ULTRASONIC PRETREATMENT | - |
dc.subject.keywordPlus | CELL DISRUPTION | - |
dc.subject.keywordPlus | SEWAGE-SLUDGE | - |
dc.subject.keywordPlus | DIGESTION | - |
dc.subject.keywordPlus | STRUVITE | - |
dc.subject.keywordPlus | WATER | - |
dc.subject.keywordPlus | SUBSTRATE | - |
dc.subject.keywordPlus | SCALE | - |
dc.subject.keywordPlus | DISINTEGRATION | - |
dc.subject.keywordPlus | ENHANCEMENT | - |
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