Air Stripping of High Concentration Ammonia Wastewater in Fertilizer Plant

摘要

Investigation on ammonia wastewater of high concentration removal in a certain fertilizer plant with air stripping show that with appropriate temperature, pH and steam quantity and pressure, when concentration of NH4+-N in inlet is about 1300mg/L, removal efficiency can reach to 96% or above. Wastewater after treatment can meet the discharge demand. Ammonia with reclaiming treatment will not cause the second contamination, which shows that air stripping with steam is an efficient method to treat high concentration ammonia wastewater.