Experimental study on odor countermeasures for conventional processes in water purification plants
In this paper,through pilot test and production tracking and monitoring of the actual water plant,the effective countermeasures of the conventional treatment technology based on pre-treatment+flocculation sedimentation tank+sand filter to the odor substances dominated by 2-MIB were studied.The results show that the removal efficiency of 2-MIB by adding pre-ozone on the basis of conventional treatment is higher than that by adding powdered activated carbon alone or combined with powdered activated carbon,and adding pre-ozone is an effective pretreatment measure.Powdered activated carbon or potassium permanganate have a certain removal rate of 2-MIB,but the removal effect is not as good as ozone.When powdered activated carbon is combined with ozone,potassium permanganate and other oxidants,a certain hydraulic retention time interval should be ensured,otherwise the combined effect of the agent will be weakened.
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