Abstract:

This paper systematically analyzes the influencing factors based on production realities for the problem of blockage in ammonia stripper which has impacted stable operation of the system,and proposes optimization and modification for oil discharging in source liquor,alkali dosing mixer and feeding process for ammonia stripper,which has reduced the blockage of ammonia stripper trays and greatly improved the operation stability of the system. In addition,the NH3-N content in wastewater from ammonia stripping could be stably controlled within 100～200mg/L.