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https://hdl.handle.net/11499/6022
Title: | Characterization and treatment of Denizli landfill leachate using anaerobic hybrid/aerobic CSTR systems | Authors: | Agdag, Osman Nuri | Keywords: | CSTR Denizli sanitary landfill hybrid reactor leachate characterization Aerobic reactor Anaerobic toxicity assays Anaerobic/aerobic Characterization studies COD removal efficiency Completely stirred tank reactors CSTR systems Effective volume Hybrid reactor Inert COD Inorganic contaminants Landfill leachates Leachates Metals concentrations Methane content Municipal solid waste landfills N removal Organic loading rates Sanitary landfill Start-ups Suspended solids Total nitrogen Alkalinity Biochemical oxygen demand Characterization Dissolved oxygen Heavy metals Leaching Methanation Methane Municipal solid waste Radioactive waste disposal Toxicity Volatile fatty acids Waste disposal Waste treatment Leachate treatment dissolved oxygen nitrogen volatile fatty acid alkalinity biochemical oxygen demand bioreactor fatty acid landfill leachate methane pH precipitation (chemistry) temperature effect toxicity toxicity test article chemical oxygen demand continuous stirred tank reactor controlled study heavy metal removal landfill leachate pollution monitoring seasonal variation sewage effluent soil pollution control solid waste management Turkey (republic) Bacteria, Aerobic Bacteria, Anaerobic Biodegradation, Environmental Bioreactors Equipment Design Equipment Failure Analysis Soil Microbiology Water Microbiology Water Pollutants, Chemical Water Purification |
Abstract: | Leachate generated in municipal solid waste landfill contains large amounts of organic and inorganic contaminants. In the scope of the study, characterization and anaerobic/aerobic treatability of leachate from Denizli (Turkey) Sanitary Landfill were investigated. Time-based fluctuations in characteristics of leachate were monitored during a one-year period. In characterization study; chemical oxygen demand (COD), biochemical oxygen demand (BOD) dissolved oxygen, temperature, pH, alkalinity, volatile fatty acids, total nitrogen, NH4-N, BOD5/COD ratio, suspended solid, inert COD, anaerobic toxicity assay and heavy metals concentrations in leachate were monitored. Average COD, BOD and NH4-N concentration in leachate were measured as 18034 mg/l, 11504 mg/l and 454 mg/l, respectively. Generally, pollution parameters in leachate were higher in summer and relatively lower in winter due to dilution by precipitation. For treatment of leachate, two different reactors, namely anaerobic hybrid and aerobic completely stirred tank reactor (CSTR) having effective volumes of 17.7 and 10.5 litres, respectively, were used. After 41 days of start-up period, leachate was loaded to hybrid reactor at 10 different organic loading rates (OLRs). OLR was increased by increasing COD concentrations. COD removal efficiency of hybrid reactor was carried out at a maximum of 91%. A percentage of 96% of residual COD was removed in the aerobic reactor. NH4-N removal rate in CSTR was quite high. In addition, high methane content was obtained as 64% in the hybrid reactor. At the end of the study, after 170 operation days, it can be said that the hybrid reactor and CSTR were very effective for leachate treatment. © 2011 Taylor & Francis. | URI: | https://hdl.handle.net/11499/6022 https://doi.org/10.1080/09593330.2010.510538 |
ISSN: | 0959-3330 |
Appears in Collections: | Mühendislik Fakültesi Koleksiyonu PubMed İndeksli Yayınlar Koleksiyonu / PubMed Indexed Publications Collection Scopus İndeksli Yayınlar Koleksiyonu / Scopus Indexed Publications Collection WoS İndeksli Yayınlar Koleksiyonu / WoS Indexed Publications Collection |
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