Process for PURIFYING Wastewater from coking plants

摘要

Procedure for purification of coke Plant Wastewater contaminated with Nitrogen Compounds, Cyanides and sulphides.According to the present Wastewater from Coking plant is made to flow through a reactor (3) integrated in a Circuit (2), the Fluid containing at least a tubular Membrane reactor (5) permeable to gases inside which applies a pressurized gas (4) containing Oxygen.The outside of the tubular Membrane (5), around which flows the Fluid remains a Biological Film (6) whose interior area (7) rich in Oxygen as a result of the gas permeability of the Membrane Tube (5),Nitrogen compounds content in the Wastewater are selectively nitrified to nitrate form and at the same time in an outdoor area (8) of the Biological Film Oxygen Poor (6) denitrifican Nitrates into Elementary nitrogen.