Behaviour of heavy metals in activated sludge biological treatment of landfill leachate |
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| Institution: | 1. The First Affiliated Hospital of Zhengzhou University, Zhengzhou University, Zhengzhou 450052, Henan, China;2. Department of Pathology, Anatomy and Cell Biology, Thomas Jefferson University, Philadelphia, USA;3. Department of Oncology, Henan Cancer Hospital, The Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou 450000, China;4. Department of Pathology, Nanjing Medical University, Nanjing 210000, China;5. Department of Pathology, Carver College of Medicine, the University of Iowa, IA 52242, USA;1. Materials Chemistry & Metal Fuel Cycle Group, Indira Gandhi Centre for Atomic Research, Kalpakkam 603102, India;2. Homi Bhabha National Institute, Kalpakkam 603102, India;1. Division of Geochemistry and Laboratories, Czech Geological Survey, Geologicka 6, 15200 Prague 5, Czech Republic;2. Department of Earth Sciences, The University of Adelaide, North Terrace, Adelaide, SA 5005, Australia;3. Faculty of Mathematics and Physics, Charles University, Sokolovska 83, 18675 Prague 8, Czech Republic |
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| Abstract: | The behaviour of heavy metals was studied by carrying out a series of experiments with an activated sludge biological reactor (with pure oxygen), fed with different types of landfill leachate. The leachates used had been previously treated by the wet oxidation process and also by ammonia stripping. The experimentation aims were to evaluate both BOD and COD removal rates and the distribution of heavy metals concentrations between the liquid and solid phases. This latter data was used to confirm a mathematical model which predicts the distribution of heavy metals between the liquid and solid phases of a biological process. |
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