Chemical symbol, call the process of purificationAdvanced C skin service nation Chlorine (chlorination stage.)Sodium hydroxide E step insertion (extraction stage) aixe.Calcium chloride, hypochlorite H stage hypochlorite (the hypochlorite stage).Chlorine dioxide chlorine dioxide stages D (chlorinedioxide stage).Hydrogen peroxide Super oxide P stage (peroxide stage.)O stage Oxygen oxygen (oxygen stage).Ozone ozone (ozone stage), stage ZReuben, A step the Acid (acid stage.)
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