Method for treating wastewater of dinitrodiazophenol

The method includes microelectrolysis, electrofilter, filter, oxidized coagulating and refilter, filings in microelectrolysis tank are scurf and carbon powder, the ratio of them is 5-9:4-1, H2O2 that density is 20-40 percent and FeSO4 that density is 20-50 percent are added in during oxidizing coagulating process in the meantime, filtered liquid is direct discharged after being filtered and fully oxidized and coagulated. The waste water processed by this invention can reach national effluent standard, COD dislodging ratio is 98.2 percent, BOD5 dislodging ratio is 98.2 percent, chroma, nitrophenol and sulfide dislodging ratio are all approach 100 percent.