Influence of organic loading on an anaerobic sequencing biofilm batch reactor (ASBBR) as a function of cycle period and wastewater concentration - Siman, Renato Ribeiro; Borges, Alisson Carraro; Ratusznei, Suzana Maria; Rodrigues, José Alberto Domingues; Zaiat, Marcelo; Foresti, Eugenio; Borzani, Walter (Journal of Environmental Management, 2004)