The White Rot Fungus Treatment Nitrobenzenes Wastewater

Nitrobenzene compounds , a highly toxic compound,is very difficult to be degraded and its chemistry property is very stabilizing.The treatment of nitrobenzene compounds contaminated water causes great environmental concern. Because of its nonspecific enzymatic activity ,White rot fungus can degrade a range of persistent or toxic compounds. In this work, the degradation of different nitrobenzene compounds by white rot fungus was investigated.Using a new technique of Fenton' reagent oxidation treatment to solve the high outflow concentration of COD after biodegradation.lt is proved that the treatment by white rot fungus is very feasible to be used in nitrobenzene compounds wastewater, the efficient white rot fungus to degrade nitrobenzene compounds created after being culture and incubation and the best operating parameters of Fenton' reagent oxidation were obtained.The results demonstrated that the removal efficiency of nitrobenzene(NB) simulated wastewater can reach 95.8% after the degradation of white rot fungus,and in the optimization of treatment conditions :40minutes, 1 .0mLH2O2 aad 1 .0g active carbon ,the removal efficiency of COD of NB is 98.4% and no NB was detected-After being degradated, the removal efficiency of RDX simulated and actual wastewater can reach 75.1% and 59.04% , the removal efficiency of COD are 80.9% and 85.1% in the optimization of treatment conditions :40minutes, 1.0mLH2O2 and l.Og active carbon. The removal efficiency of TNT simulated and actual wastewater can reach 96.5% and 97.6% after biodegradation, and the outflow quality is achieved national standard of wastewater discharge after treatment in the optimizing conditions:40minutes, 1.0 mLH2O2 and 2.0g active carbon.