Biodegradation of naphthalenesulphonate polymers: the potential of a combined application of fungi and bacteria
| Autor: | Fabrizio Briganti, Giulio Munz, Claudio Lubello, Alberto Mannucci, Riccardo Gori, Antonella Gullotto |
|---|---|
| Rok vydání: | 2014 |
| Předmět: |
Microbial Consortia
Wastewater Water Purification Microbiology Industrial wastewater treatment Bjerkandera adusta Naphthalenesulfonates Environmental Chemistry Waste Management and Disposal Water Science and Technology Bacteria biology Chemistry Depolymerization Chemical oxygen demand Fungi General Medicine Biodegradation biology.organism_classification Pulp and paper industry Biodegradation Environmental Activated sludge Feasibility Studies Sewage treatment Pleurotus ostreatus Water Pollutants Chemical |
| Zdroj: | Environmental Technology. 36:538-545 |
| ISSN: | 1479-487X 0959-3330 |
| Popis: | The potential of several fungi and their synergy with bacterial biomasses were evaluated as a solution for the removal of 2-naphthalensulphonic acid polymers (2-NSAPs) from petrochemical wastewater, characterized by a chemical oxygen demand (COD) greater than 9000 mg/L. The ability of fungi to grow on 2-NSAP mixtures was preliminarily investigated using a solid medium, and then the action of the selected strains, both in suspended and immobilized form, was evaluated in terms of degradation, depolymerization, sorption and an increase in biodegradability of 2-NSAP. Among the 25 fungi evaluated two, in particular, Bjerkandera adusta and Pleurotus ostreatus, have been found to significantly depolymerize 2-NSAP yielding to the corresponding monomer (2-naphthalenesulphonic acid, 2-NSA), which has been further degraded by a bacterial consortia selected in a wastewater treatment plant (WWTP). The fungal treatment alone was able to reduce the COD value up to 44%, while activated sludge removed only 9% of the initial COD. In addition, the combined treatment (fungi and bacteria) allowed an increase in the COD removal up to 62%. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|