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Carbonaceous cation exchangers from coal and coal refuse
Softening water with nonmetallic minerals
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Published Year
1940-1949 (2)
Subject
Water--Purification--Diatomaceous earth filtration (2)
Water--Softening (2) *
Water--Purification (1)
Water--Purification--Coagulation (1)
Author
Broderick, S. J. (2)
Bogard, Dale. (1)
