Abstract
The sugar and ethanol industry generates large quantities of waste liquids. If untreated effluents are used in fertigation, they might contaminate groundwater and, if they are released into water bodies, they might also jeopardize the survival of the aquatic ecosystem. Therefore, the proposal of this study was to isolate microorganisms from the treatment station of a sugar and ethanol industry, assessing their enzymatic behavior and effects in laboratory, as well as the physicochemical improvement of the effluent. Following a bioaugmentation of the effluent, a physicochemical monitoring was performed with the purpose of reusing it in drip irrigation.
Highlights
Supply failure is a fact in many places, the illusion still exists that water is an infinite resource (Cullet, 2007)
The medium contained in the gallons had the same composition and each gallon was inoculated with 100 mL of the bacteria/fungi cultures
Further parameters were obtained from assays carried out at LBPMA following techniques described in the manual of the American Public Health Association (American Public Health Association [Apha], 1998)
Summary
Supply failure is a fact in many places, the illusion still exists that water is an infinite resource (Cullet, 2007). The temperature of such untreated wastewater is high at the moment of discharge, preventing the diffusion of atmospheric oxygen, especially if discharged in small lagoons, and low concentrations of dissolved oxygen (DO) are usually detected at floodgates/pumping stations of receiving water bodies where highly contaminant waste water is discharged. Such a drastic reduction of DO at such spots is frequently associated with the death of fish and other water life forms in these. Usina Coruripe Açúcar e Álcool (Coruripe-AL), monitoring its physicochemical parameters during the 2004/2005 – 2008/09 harvests
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