&lt;b&gt;Physicochemical study of pH, alkalinity and total acidity in a system composed of Anaerobic Baffled Reactor in series with Upflow Anaerobic Sludge Blanket reactor in the treatment of pig farming wastewater&lt;/b&gt; - doi: 10.4025/actascitechnol.v35i3.14069
Acta Scientiarum. Technology/Acta scientiarum. Technology