Coupling biofiltration process and electrocoagulation using magnesium-based anode for the treatment of landfill leachate.

Oumar, D ; Patrick, D ; et al.

In: Journal of environmental management, Jg. 181 (2016-10-01), S. 477

Online academicJournal

Zugriff:

Zum Volltext

In this research paper, a combination of biofiltration (BF) and electrocoagulation (EC) processes was used for the treatment of sanitary landfill leachate. Landfill leachate is often characterized by the presence of refractory organic compounds (BOD/COD < 0.13). BF process was used as secondary treatment to remove effectively ammonia nitrogen (N-NH4 removal of 94%), BOD (94% removed), turbidity (95% removed) and phosphorus (more than 98% removed). Subsequently, EC process using magnesium-based anode was used as tertiary treatment. The best performances of COD and color removal from landfill leachate were obtained by applying a current density of 10 mA/cm(2) through 30 min of treatment. The COD removal reached 53%, whereas 85% of color removal was recorded. It has been proved that the alkalinity had a negative effect on COD removal during EC treatment. COD removal efficiencies of 52%, 41% and 27% were recorded in the presence of 1.0, 2.0 and 3.0 g/L of sodium bicarbonate (NaHCO3), respectively. Hydroxide ions produced at the cathode electrode reacted with the bicarbonate ions to form carbonates. The presence of bicarbonates in solution hampered the increase in pH, so that the precipitation of magnesium hydroxides could not take place to effectively remove organic pollutants.

Titel:	Coupling biofiltration process and electrocoagulation using magnesium-based anode for the treatment of landfill leachate.
Autor/in / Beteiligte Person:	Oumar, D ; Patrick, D ; Gerardo, B ; Rino, D ; Ihsen, BS
Link:	Zum Volltext
Zeitschrift:	Journal of environmental management, Jg. 181 (2016-10-01), S. 477
Veröffentlichung:	London ; New York, Academic Press., 2016
Medientyp:	academicJournal
ISSN:	1095-8630 (electronic)
DOI:	10.1016/j.jenvman.2016.06.067
Schlagwort:	Ammonia chemistry Biological Oxygen Demand Analysis Electrocoagulation instrumentation Hydrogen-Ion Concentration Magnesium Nitrogen chemistry Nitrogen metabolism Organic Chemicals chemistry Phosphorus chemistry Phosphorus metabolism Sodium Bicarbonate chemistry Water Purification instrumentation Water Purification methods Electrocoagulation methods Electrodes Filtration methods Water Pollutants, Chemical chemistry
Sonstiges:	Nachgewiesen in: MEDLINE Sprachen: English Publication Type: Journal Article Language: English [J Environ Manage] 2016 Oct 01; Vol. 181, pp. 477-483. <i>Date of Electronic Publication: </i>2016 Aug 05. MeSH Terms: Electrodes* ; Electrocoagulation / methods ; Filtration / methods ; Water Pollutants, Chemical / *chemistry ; Ammonia / chemistry ; Biological Oxygen Demand Analysis ; Electrocoagulation / instrumentation ; Hydrogen-Ion Concentration ; Magnesium ; Nitrogen / chemistry ; Nitrogen / metabolism ; Organic Chemicals / chemistry ; Phosphorus / chemistry ; Phosphorus / metabolism ; Sodium Bicarbonate / chemistry ; Water Purification / instrumentation ; Water Purification / methods Contributed Indexing: Keywords: Ammonia nitrogen; Biofiltration; Electrocoagulation; Landfill leachate; Magnesium electrode; Refractory COD Substance Nomenclature: 0 (Organic Chemicals) ; 0 (Water Pollutants, Chemical) ; 27YLU75U4W (Phosphorus) ; 7664-41-7 (Ammonia) ; 8MDF5V39QO (Sodium Bicarbonate) ; I38ZP9992A (Magnesium) ; N762921K75 (Nitrogen) Entry Date(s): Date Created: 20160716 Date Completed: 20170403 Latest Revision: 20181202 Update Code: 20240513

Klicken Sie ein Format an und speichern Sie dann die Daten oder geben Sie eine Empfänger-Adresse ein und lassen Sie sich per Email zusenden.

BibTeX Citavi, JabRef, u.a.
(Literaturverwaltung)

PDF kein Volltext!
(Merkzettel, Notizen)

RIS Endnote, Citavi u.a.
(Literaturverwaltung)

MODS
(XML zur Weiterverarbeitung)

oder

Wählen Sie das für Sie passende Zitationsformat und kopieren Sie es dann in die Zwischenablage, lassen es sich per Mail zusenden oder speichern es als PDF-Datei.

Gewünschter Zitations-Stil:

oder

Bitte prüfen Sie, ob die Zitation formal korrekt ist, bevor Sie sie in einer Arbeit verwenden. Benutzen Sie gegebenenfalls den "Exportieren"-Dialog, wenn Sie ein Literaturverwaltungsprogramm verwenden und die Zitat-Angaben selbst formatieren wollen.