title: Evaluation of sugar-cane vinasse treated with Pleurotus sajor-caju utilizing aquatic organisms as toxicological indicators.
abstract: Toxicity tests with aquatic organisms constitute an effective tool in the evaluation, prediction and detection of the potential effect of pollutants from environmental samples in living organisms. Vinasse, a highly colored effluent, is a sub-product rich in nutrients, mainly organic matter, with high pollutant potential when disposed in the environment. Assays for vinasse decolorization were performed using the fungus Pleurotus sajor-caju CCB020 in vinasse biodegradation study, were occurred reductions of 82.8% in COD, 75.3% in BOD, 99.2% in the coloration and 99.7% in turbidity. The vinasse toxicity reduction was determined by the exposition to the following organisms: Pseudokirchneriella subcapitata, Daphnia magna, Daphnia similis and Hydra attenuata. This work concluded that the systematic combination of P. sajor-caju and vinasse can be applied in the bioprocess of color reduction and degradation of complex vinasse compounds, with reduction in the toxicity and improving its physical-chemical properties.
authors.affiliation: Centro de Energia Nuclear na Agricultura/USP, Piracicaba, Caixa Postal 96. Av. Centenário, 303, SP, Brazil.
authors.forename: Luiz F Romanholo
authors.initials: LF
authors.lastname: Ferreira
authors.forename: Mario M
authors.initials: MM
authors.lastname: Aguiar
authors.forename: Tamara G
authors.initials: TG
authors.lastname: Messias
authors.forename: Georgia B
authors.initials: GB
authors.lastname: Pompeu
authors.forename: Ana M Queijeiro
authors.initials: AM
authors.lastname: Lopez
authors.forename: Daniel P
authors.initials: DP
authors.lastname: Silva
authors.forename: Regina T
authors.initials: RT
authors.lastname: Monteiro
mesh_terms: D000818:Animals; D001673:Biodegradation, Environmental; D000460:Chlorophyta / Q000187:drug effects* / Q000378:metabolism; D003621:Daphnia / Q000187:drug effects / Q000378:metabolism; D004785:Environmental Pollutants / Q000032:analysis* / Q000378:metabolism / Q000633:toxicity*; D006829:Hydra / Q000187:drug effects / Q000378:metabolism; D007220:Industrial Waste / Q000032:analysis; D007448:Invertebrates / Q000187:drug effects* / Q000378:metabolism; D020076:Pleurotus / Q000378:metabolism*; D031786:Saccharum / Q000737:chemistry / Q000378:metabolism*; D018675:Toxicity Tests / Q000379:methods*
chemical_list: D004785:Environmental Pollutants; D007220:Industrial Waste