Biodegradation and Detoxification of Sanitary Landfill Leachate by Stabilization Ponds System
| Autor: | Heloísa Fernandes, C. L. Martins, V. F. Velho, Rejane Helena Ribeiro da Costa |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Biochemical oxygen demand
010501 environmental sciences Waste Disposal Fluid 01 natural sciences Bioreactors Ammonia Detoxification Environmental Chemistry Leachate Ponds Waste Management and Disposal Effluent 0505 law 0105 earth and related environmental sciences Water Science and Technology Biological Oxygen Demand Analysis Chemistry Ecological Modeling 05 social sciences Chemical oxygen demand Environmental engineering Biodegradation Plankton Pulp and paper industry Pollution Biodegradation Environmental Toxicity 050501 criminology Aeration Water Pollutants Chemical |
| Zdroj: | Water Environment Research. 89:539-548 |
| ISSN: | 1061-4303 |
| Popis: | The performance of a pilot stabilization ponds system was evaluated for the treatment of sanitary landfill leachate, focusing on effluent detoxification. Three serial ponds (anaerobic-P1, facultative-P2, and maturation-P3) were evaluated during two different operational conditions: natural condition (period 1) and 24 hours of artificial aeration in P2 (period 2). The ponds system exhibited removal efficiencies of 53% for soluble chemical oxygen demand (SCOD), 81% for filtered biochemical oxygen demand (FBOD), and 84% for NH4+-N during period 1 and 70% for SCOD, 80% for FBOD, and 96% forinline-graphic xmlns:xlink="http://www.w3.org/1999/xlink" xlink:href="00539-ilm01.gif"/-N during period 2. Most metals (Fe, Cu, Cd, Zn, Cr, Ni, and Pb) and organic compounds in the leachate were significantly reduced in the treatment system, with greater reductions during period 2. Moreover, toxicity tests demonstrated the capacity of the system to reduce the toxicity of the raw leachate (up to 89% toxicity reduction). |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text