Date of Award

Spring 1940

Degree Type

Thesis - Restricted

Degree Name

Master of Science (MS)




The purpose of the work undertaken in this thesis is to investigate the removal of silica from natural waters by magnesium hydroxide. Since the materials contained in natural waters would complicate the study of the effects produced by individual factors, most of the study was made on dilute sodium silicate solutions. It is hoped that this work will throw some light on the following points: 1. The nature of the process of silica reduction by magnesium hydroxide. 2. The factors affecting the reduction of silica by magnesium hydroxide. 3. The possibility of relating magnesium hydroxide to the partial desilicification observed in some industrial softening processes. 4. The maximum quantity of silica that may be removed by a given quantity of magnesium hydroxide, thus indicating the possible practical value of this method of silica reduction.



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