Anaerobic sequencing batch reactor as an alternative for the biological treatment of wine distillery effluents

Abstract

The goal of this study was to assess the effect of different modes of operation and configurations of Anaerobic Sequencing Batch Reactors (ASBRs) treating phenolic wastewater. Several lab-scale reactors were used in the mesophilic range. The reactors were fed with synthetic wastewater with a COD of 5 g/L using phenol as a carbon source (variable concentration) and glucose as a co-substrate. One and two-phase (hydrolytic/acidogenic-methanogenic) systems in batch and fed-batch operation were evaluated. The one-stage reactor operated by the fed batch (which was the only configuration using phenol as a sole carbon source), presented better results for the removal of phenol, reaching 100% removal in 10 days at a concentration of 210 mg/L. The two-stage configuration had removal percentages near 100%, but the methanogenic reactor presented greater degradation of the remaining phenol not removed in the hydrolytic/acidogenic reactor. ASBRs might be a feasible alternative to treat this type of effluent due to their operational flexibility.

Microbial community structure associated with treatment of azo dye in a start-up anaerobic sequenced batch reactor

“…Anaerobic sequenced batch reactors (ASBRs) have been widely used for treating industrial effluents such as textile industries, pulp mills and other sources, due to its operational simplicity, stable performance and resistance to shock loading [12,13]. Moreover, ASBRs offer some kinetic advantages over continuous reactors, such as a higher reaction rate at the beginning of reaction since the substrate concentration is high, which is substantially different from continuous reactor that always works at the outlet concentration [14].…”

Removal of Contaminants in Water with Scallop Shell Waste

“…Water decontamination tests using scallop shell powder were performed with the objective of defining a potential application for this type of waste. Two of the main contaminants of Chilean waters were selected, the first being Caffeic Acid (CA), which is a compound commonly found in wastewater produced by vitiviniculture [49][50][51][52][53]. The second contaminant selected is Arsenic in the form of As(III), which is present in soil and water bodies [54,55], as well having been found in potable waters [56,57].…”

New Water Culture: Care, Sanitation and Reuse, for Social, Economic and Environmental Stability

“…Where the acclimatization of any type of microorganism to the presence of phenol is a key factor (Terreros, Guzman and García, 2022). Various studies have been carried out to treat phenolic wastewater, due to the great contamination problem they represent, both for the environment, bodies of water, food and human health (Bevilaqua, Cammarota, Freire and Sant'AnnaJr 2002 ;Jiang, Tay and Tay (2004;Tay, Moy, Jiang and Tay 2005;Melo, Kholi, Patwardhan and D'Souza 2005;Hossein and Gordon, 2006;Bajaj, Gallert and Winter, 2008a;Contreras, Albertario, Bertola and Zaritzky, 2008;Donoso-Bravo, Rosenkranz, Valdivia, Torrijos, Ruiz-Filippi and Rolando, 2009;Ben-Youssef and Vázquez-Rodríguez, 2011).…”