Microbial Cultivation Method for Nitrifying High Ammonia Nitrogen in Wastewater

摘要

The present invention relates to a method for culturing microorganisms for nitrifying high concentration ammonia nitrogen in wastewater generated in a coke plant. The present invention relates to oils, waste phenols, sulfur compounds, It is an object of the present invention to minimize the effects of cyanide compounds and the like and to provide a stable and effective microbial cultivation method without diluting the raw wastewater generated from the coke plant.;Homogenizing the wastewater, inflowing the wastewater into the culture tank for 5 days of hydraulic retention so that the concentration of ammonia nitrogen in the wastewater is 100 mg / l or less and the activated sludge is 600-1000 mg / 1. Driving the microorganisms to increase compliance and resistance; Adjusting the flow rate of the wastewater such that the maximum hydraulic retention time of the wastewater is 2 days when the activated sludge concentration of the microorganism culture tank is 1500 mg / 1 or more; Cultivating a microorganism capable of nitrifying a high concentration of ammonia nitrogen by adjusting the dilution ratio of the raw waste water according to the removal rate of ammonia nitrogen in the microbial culture tank to introduce the waste water; The treated wastewater is separated from the solid-liquid separation tank into the supernatant and the activated sludge to discharge the supernatant, and the activated sludge is recycled back to the microbial culture tank to control the concentration of microorganisms in the coke plant. Provided are a microbial culture method capable of nitrifying cattle.