Publications by authors named "Cristiane Arruda Oliveira"
The competition between sulfate-reducing bacteria (SRB) and methanogenic archaea (MA) depends on several factors, such as the COD/SO ratio, sensitivity to inhibitors and even the length of the operating period in reactors. Among the inhibitors, salinity, a characteristic common to diverse types of industrial effluents, can act as an important factor. This work aimed to evaluate the long-term participation of sulfidogenesis and methanogenesis in the sulfate-rich wastewater process (COD/SO = 1.
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- Sulfamethazine (SMZ), an antibiotic from the sulfonamides class, is commonly found in wastewater, making its removal from the aquatic environment essential.
- The study investigates the use of a horizontal flow-anaerobic immobilized biomass reactor (HAIB) to remove SMZ, evaluating its performance across three concentrations and measuring its removal kinetics.
- Results show that the HAIB reactor achieved SMZ removal efficiencies of 56% to 62%, detected seven transformation products, including one new compound, highlighting its potential for cost-effective wastewater treatment at low contaminant concentrations.
The use of anaerobic biomass attached to a support has been recently presented as a good prospect in the treatment of wastewater containing recalcitrant compounds, such as sulfamethazine (SMZ). SMZ has been found in swine wastewater and sewage treatment plants, which motivates assessing their degradation by new wastewater treatment technologies. Thus, this paper describes the use of a continuous fixed structured bed bioreactor for the purpose of evaluating SMZ removal kinetics present in lab-made wastewater.
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