"TRATAMENTO BIOLÓGICO EM EFLUENTES DE ÁGUA PARA USINAGEM DE OLIVEIRA"

MARIELA B. MALDONADO; EMILIANO GABRIEL FONARSIN; LEONEL LISANTI; ARIEL MARQUEZ; WALTER PIRAN; GRACIELA MALDONADO; PABLO ENRIQUE MARTÍN; DANIELA ADRIANA BARRERA

"Estudos em Biociências e Biotecnologia: Desafios, Avanços e Possibilidades"

ARTEMIS

Lugar: Curitiba; Año: 2021; p. 1 - 220

Purpose Effluents from machined olive waters are highly polluting. Thesehave high organic load values such as the biological demand of oxygen and the chemicaldemand of oxygen, salinity, and others, which far exceed current regulations. Theobjective of this work was to achieve, through bioremediation by native microorganisms,the reduction of effluent contamination in order to possible use in mixing and curing ofmortars and special concretes. Methods: Bioremediation was achieved by supplementingthe effluent with a source of carbon, nitrogen, and phosphorus in the approximate ratio100: 5: 1, under aerobic conditions at room temperature (25 ± 1 °C) for a period of 7 to14 days. Results:The native microorganisms achieved by biostimulation an approximatereduction of 25-80% of the specific parameters and pollution indicators such as BOD5,COD and Conductivity, transforming the effluent into a less contaminated liquid thatcan be used for other reuses or destinations. During the test, the existence of viablemicroorganisms was verified that quickly consumed the carbon source and thenpossibly other more complex organic matter, being the same ones responsible for thereduction of pollutants. Conclusion: The native flora achieved the reduction of the originalcontamination of the effluent from ?mechanized olives? by biostimulation, transforming itinto a less contaminated liquid that could be used for other uses such as the preparationof concrete, mixtures and curing of mortars