Toxicity assessment upon augmented biostimulation source to indigenous rhizobium Cupriavidus taiwanensis.

This novel-attempt study used chemostat pulse technique (CPT) and transient dynamics of dissolved oxygen (DO) in CSTR to quantify stimulating or inhibitory effects of augmented nutrient sources in the presence of phenol upon Cupriavidus taiwanensis R186. With injected augmented nutrients, phenol degradation performance of R186 was directly dependent on combined toxicity between phenol and the augmented substrate and the biodegradability of phenol. The findings indicated that although phenol was toxic to R186, all augmented nutrient sources still exhibited stimulating effects to bacterial growth of R186 in the presence of phenol.