Effect of carbon source on the degradation of 2-naphthalenesulfonic acid polymers mixture by Pleurotus ostreatus in petrochemical wastewater

Furthermore, respirometric tests showed that the fungal treatment was also able to significantly increase the bCOD/COD ratio, going from 9% (raw wastewater) up to 57%. This is clearly correlated with the enhancement in oligomers depolymerization confirming that the fungal action is not a mineralization of NSAP, but an increase of their biodegradability.