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Evaluación del funcionamiento de un Sistema Biológico-físico-químico (BFQ) para el tratamiento
| Content Provider | Semantic Scholar |
|---|---|
| Author | Lastra, Gallardo Fermando, Lorena |
| Copyright Year | 2011 |
| Abstract | Acid mine drainages (AMD) are nowadays a very serious environmental problem caused by all the mine activities. These drains are characterized for having a high content of dissolved heavy metals, sulphate ions and acid pH which have negative consequences not only in human health but also in many ecosystems in which they are discharged. The main purpose of this study was to evaluate the operation of a physical-chemical-biological (PQB) system to decontaminate the AMD using sulphate-reducing bacteria (SRB) that produce biogenic sulphur to precipitate heavy metals into metal sulphurs. A bioreactor packed with SRB was used; it was fed with 3000 mg sulphate L-1 and 2500 mg acetate L-1 as the electron donor and was stabilized until obtaining sulphur concentrations of approximately 130 mg L-1. A physical-chemical reactor was connected in series to the bioreactor and had as a second affluent a synthetic DAM composed by 30 mg L-1 copper (II) and a pH of 2.7. |
| File Format | PDF HTM / HTML |
| Alternate Webpage(s) | http://repositorio.usfq.edu.ec/bitstream/23000/1235/1/101200.pdf |
| Language | English |
| Access Restriction | Open |
| Content Type | Text |
| Resource Type | Article |
