A FILTER SELF-CLEANING SYSTEM FOR MEASURING CONTAMINATED SUBSTANCE

摘要

The present invention relates to a kind of 2-bed type filters to enable automatic backwash according to change flow rate. More specifically, 2-bed type filters improve reliability, when to the measured value of pollutant, by washing impurity clog filter screens automatically, for measuring pollutant sanitary sewage or river contained in pre-treatment step. ;The 2014 of copyright KIPO submissions