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Simulation of Lead Removal by Chemical Treatment
Author(s) -
Naylor Lewis M.,
Dague Richard R.
Publication year - 1975
Publication title -
journal ‐ american water works association
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.466
H-Index - 74
eISSN - 1551-8833
pISSN - 0003-150X
DOI - 10.1002/j.1551-8833.1975.tb02296.x
Subject(s) - lime , softening , alum , coagulation , lead (geology) , chemistry , mineralogy , materials science , pulp and paper industry , metallurgy , composite material , geology , engineering , psychology , geomorphology , psychiatry
This study evaluates the effectiveness of a lime coagulation, lime, and limesoda ash softening in the removal of lead. The treatment processes were simulated at laboratory scaie oh a variety of waters having synthetically developed Chemical characteristics. All Systems reduced lead levels to 0.05 mg/l; however, alum coagulation was effective only in the pH range 8–9, not at near neutral values. Chemical softening in the solids‐contact mode resulted in virtually complete removal of lead.