publicações selecionadas artigo académico Biodegradability and toxicity of styrene in the anaerobic digestion process. Biotechnology Letters. 2000 artigo de conferência Effect of addition of an ammonium source in UASB and EGSB reactors when treating low concentrated wastewater: granules morphology 2005 documento Effect of addition of an ammonium source in UASB and EGSB reactors when treating low concentrated wastewater: granules morphology 2005