Authors:
Masu, Smaranda
Masu, Smaranda
Conference: International Symposium “The Environment and the Industry”
Date: November 16-18, 2011
Location: Bucharest, Romania
Published: 2011
Volume: I
Keywords:
Drinking water
Coagulation
Prehydrolyzed iron salts
Drinking water
Coagulation
Prehydrolyzed iron salts
Abstract:
The use of prehydrolized iron salts based coagulants as substitutes for aluminium based prehydrolized compounds for drinking water is a feasible alternative given the high removal efficiency of natural organic matter when treating water coming from various sources. By using prehydrolized coagulants, the removal efficiencies of the dissolved organic matter, (DOC), are 15-24% higher than in the case of using aluminium salts. On the other hand, as part of these experiments, the residual total organic carbon (TOC), is by 16.5% lower when prehydrolized iron based salts are used. Each situation is assessed in order to set up the specific working conditions when substitution of iron salts for aluminum compounds is suitable given the fact that even extremely small amounts of residual iron can colour the treated water.
The use of prehydrolized iron salts based coagulants as substitutes for aluminium based prehydrolized compounds for drinking water is a feasible alternative given the high removal efficiency of natural organic matter when treating water coming from various sources. By using prehydrolized coagulants, the removal efficiencies of the dissolved organic matter, (DOC), are 15-24% higher than in the case of using aluminium salts. On the other hand, as part of these experiments, the residual total organic carbon (TOC), is by 16.5% lower when prehydrolized iron based salts are used. Each situation is assessed in order to set up the specific working conditions when substitution of iron salts for aluminum compounds is suitable given the fact that even extremely small amounts of residual iron can colour the treated water.