Subcritical water treatment of landfill leachate: Application of response surface methodology

Basit Öğe Kaydı
dc.authoridKalderis, Dimitris -- 0000-0002-4983-065X; Kirmizakis, Panagiotis -- 0000-0002-2723-7855
dc.contributor.authorKirmizakis, Panagiotis
dc.contributor.authorTsamoutsoglou, C.
dc.contributor.authorKayan, Berkant
dc.contributor.authorKalderis, Dimitrios
dc.date.accessioned13.07.201910:50:10
dc.date.accessioned2019-07-29T19:26:23Z
dc.date.available13.07.201910:50:10
dc.date.available2019-07-29T19:26:23Z
dc.date.issued2014
dc.departmentSabire Yazıcı Fen Edebiyat Fakültesi
dc.description.abstractContext: Leachate is the liquid formed when waste breaks down in the landfill and water filters through that waste. This liquid is highly toxic and can pollute the land, ground water and water ways. It is mandatory for landfills to protect against leachate in most countries worldwide. Controlling the pollutant loading, means reducing its quantity by containing or treating the waste to comply with certain discharge characteristics which are compatible with the receptor medium. Objective: This paper describes the reduction of the organic load of a mature landfill leachate using a novel experimental set-up that employs hydrogen peroxide under subcritical conditions and aims to establish this method as an effective alternative to currently used options. Response surface methodology was applied to optimize the treatment process and determine which of the following there parameters - temperature, residence time and hydrogen peroxide concentration - played the most important role. Method: The method employed is based on the use of laboratory-scale, stainless steel reactors, filled with the leachate and appropriate quantities of hydrogen peroxide. Under subcritical conditions (temperature in the range of 100-374 degrees C and enough pressure to maintain the liquid state of water), hydrogen peroxide produces hydroxyl radicals which are highly reactive and oxidize the organic molecules of the leachate. Results: The highest COD decrease of 85% was experimentally observed at 300 degrees C, 500 mM H2O2 and 180 min residence time. It was determined that the combination of oxidant concentration and temperature is the rate-determining factor, whereas residence time has a lesser effect on the process. Conclusions: A simple, quick, effective and environmentally-friendly method for the treatment of the organic load of landfill leachate was developed and optimized at laboratory scale. (C) 2014 Elsevier Ltd. All rights reserved.
dc.identifier.doi10.1016/j.jenvman.2014.04.037
dc.identifier.endpage15en_US
dc.identifier.issn0301-4797
dc.identifier.issn1095-8630
dc.identifier.pmid25151110
dc.identifier.scopusqualityQ1
dc.identifier.startpage9en_US
dc.identifier.urihttps://doi.org/10.1016/j.jenvman.2014.04.037
dc.identifier.urihttps://hdl.handle.net/20.500.12451/5569
dc.identifier.volume146en_US
dc.identifier.wosWOS:000343614400002
dc.identifier.wosqualityN/A
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.indekslendigikaynakPubMed
dc.language.isoen
dc.publisherElsevier
dc.relation.ispartofJournal of Environmental Management
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/closedAccess
dc.subjectLandfill Leachate
dc.subjectSubcritical Water
dc.subjectSuperheated Water
dc.subjectResponse Surface Methodology
dc.subjectCentral Composite Design
dc.subjectHydrogen Peroxide
dc.titleSubcritical water treatment of landfill leachate: Application of response surface methodology
dc.typeArticle

Dosyalar

Orijinal paket
Listeleniyor 1 - 1 / 1
[ X ]
İsim:
kirmizakis-panagiotis-2014.pdf
Boyut:
1.1 MB
Biçim:
Adobe Portable Document Format
Açıklama:
Tam Metin / Full Text
İndir

Koleksiyon

Makale Koleksiyonu
PubMed İndeksli Yayınlar Koleksiyonu
Scopus İndeksli Yayınlar Koleksiyonu
WoS İndeksli Yayınlar Koleksiyonu