DC Field | Value | Language |
---|---|---|
dc.contributor.author | Chen, S | - |
dc.contributor.author | Sun, DZ | - |
dc.contributor.author | Chung, JS | - |
dc.date.accessioned | 2016-04-01T01:37:32Z | - |
dc.date.available | 2016-04-01T01:37:32Z | - |
dc.date.created | 2009-02-28 | - |
dc.date.issued | 2007-06-01 | - |
dc.identifier.issn | 0304-3894 | - |
dc.identifier.other | 2007-OAK-0000006929 | - |
dc.identifier.uri | https://oasis.postech.ac.kr/handle/2014.oak/23348 | - |
dc.description.abstract | In order to treat pesticide wastewater having high chemical oxygen demand (COD) value and poor biodegradability, Fenton-coagulation process was first used to reduce COD and improve biodegradability and then was followed by biological treatment. Optimal experimental conditions for the Fenton process were determined to be Fe2+ concentration of 40 mmol/L and H2O2 dose of 97 mmol/L at initial pH 3. The interaction mechanism of organophosphorous pesticide and hydroxyl radicals was suggested to be the breakage of the P=S double bond and formation of sulfate ions and various organic intermediates, followed by formation of phosphate and consequent oxidation of intermediates. For the subsequent biological treatment, 3.2 g/L Ca(OH)(2) was added to adjust the pH and further coagulate the pollutants. The COD value could be evidently decreased from 33,700 to 9300 mg/L and the ratio of biological oxygen demand (BOD5) to COD of the wastewater was enhanced to over 0.47 by Fenton oxidation and coagulation. The pre-treated wastewater was then subjected to biological oxidation by using moving-bed biofilm reactor (MBBR) inside which tube chip type bio-carriers were fluidized upon air bubbling. Higher than 85% of COD removal efficiency could be achieved when the bio-carrier volume fraction was kept more than 20% by feeding the pretreated wastewater containing 3000 mg/L of inlet COD at one day of hydraulic retention time (HRT), but a noticeable decrease in the COD removal efficiency when the carrier volume was decreased down to 10%, only 72% was observed. With the improvement of biodegradability by using Fenton pretreatment, also due to the high concentration of biomass and high biofilm. activity using the fluidizing bio-carriers, high removal efficiency and stable operation could be achieved in the biological process even at a high COD loading of 37.5 gCOD/(m(2) carrier day). (C) 2006 Elsevier B.V. All rights reserved. | - |
dc.description.statementofresponsibility | X | - |
dc.language | English | - |
dc.publisher | ELSEVIER SCIENCE BV | - |
dc.relation.isPartOf | JOURNAL OF HAZARDOUS MATERIALS | - |
dc.subject | Fenton process | - |
dc.subject | moving-bed biofilm reactor | - |
dc.subject | pesticide wastewater | - |
dc.subject | bio-carriers volume | - |
dc.subject | tube chip type bio-carriers | - |
dc.subject | DEGRADATION | - |
dc.subject | OXIDATION | - |
dc.subject | DETOXIFICATION | - |
dc.subject | CARBOFURAN | - |
dc.subject | REMOVAL | - |
dc.subject | REAGENT | - |
dc.title | Treatment of pesticide wastewater by moving-bed biofilm reactor combined with Fenton-coagulation pretreatment | - |
dc.type | Article | - |
dc.contributor.college | 화학공학과 | - |
dc.identifier.doi | 10.1016/J.JHAZMAT.20 | - |
dc.author.google | Chen, S | - |
dc.author.google | Sun, DZ | - |
dc.author.google | Chung, JS | - |
dc.relation.volume | 144 | - |
dc.relation.issue | 39815 | - |
dc.relation.startpage | 577 | - |
dc.relation.lastpage | 584 | - |
dc.contributor.id | 10069684 | - |
dc.relation.journal | JOURNAL OF HAZARDOUS MATERIALS | - |
dc.relation.index | SCI급, SCOPUS 등재논문 | - |
dc.relation.sci | SCI | - |
dc.collections.name | Journal Papers | - |
dc.type.rims | ART | - |
dc.identifier.bibliographicCitation | JOURNAL OF HAZARDOUS MATERIALS, v.144, no.39815, pp.577 - 584 | - |
dc.identifier.wosid | 000247197100077 | - |
dc.date.tcdate | 2019-01-01 | - |
dc.citation.endPage | 584 | - |
dc.citation.number | 39815 | - |
dc.citation.startPage | 577 | - |
dc.citation.title | JOURNAL OF HAZARDOUS MATERIALS | - |
dc.citation.volume | 144 | - |
dc.contributor.affiliatedAuthor | Chung, JS | - |
dc.identifier.scopusid | 2-s2.0-34248149411 | - |
dc.description.journalClass | 1 | - |
dc.description.journalClass | 1 | - |
dc.description.wostc | 79 | - |
dc.type.docType | Article | - |
dc.subject.keywordPlus | DETOXIFICATION | - |
dc.subject.keywordPlus | DEGRADATION | - |
dc.subject.keywordPlus | CARBOFURAN | - |
dc.subject.keywordPlus | OXIDATION | - |
dc.subject.keywordPlus | REMOVAL | - |
dc.subject.keywordPlus | REAGENT | - |
dc.subject.keywordAuthor | Fenton process | - |
dc.subject.keywordAuthor | moving-bed biofilm reactor | - |
dc.subject.keywordAuthor | pesticide wastewater | - |
dc.subject.keywordAuthor | bio-carriers volume | - |
dc.subject.keywordAuthor | tube chip type bio-carriers | - |
dc.relation.journalWebOfScienceCategory | Engineering, Environmental | - |
dc.relation.journalWebOfScienceCategory | Environmental Sciences | - |
dc.description.journalRegisteredClass | scie | - |
dc.description.journalRegisteredClass | scopus | - |
dc.relation.journalResearchArea | Engineering | - |
dc.relation.journalResearchArea | Environmental Sciences & Ecology | - |
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