Removing Fluoride from Drinking Water By Organic Polymers

Date of Award

Summer 1985

Document Type

Thesis

Degree Name

Master of Science (MS)

Department

Civil & Environmental Engineering

Program/Concentration

Civil Engineering

Committee Director

C. Calvert Chrun, III

Committee Member

William A. Drewry

Committee Member

Joseph H. Rule

Call Number for Print

Special Collections LD4331.E54A23

Abstract

Fluoride is a substance that can provide beneficial or detrimental effects depending on the total amount ingested. Naturally occurring high fluoride concentrations exist in many drinking water supplies. The fluoride removal methods developed in the past have been found to be either impractical and/or not cost effective.

The purpose of this study was to determine whether organic polymers can effectively remove fluoride. The water used in this study contained naturally occurring fluoride concentrations between 4.5 to 5.5 mg/1 and it was collected from the City of Franklin, Virginia, water supply system. Laboratory jar test procedures, which simulated a conventional water treatment plant, were carried out; organic polymers were used as primary coagulants and metal salts and clay were used as coagulant aids.

Results indicated that the most effective combination was that of a cationic polymer and alum. At the optimum dosage, the optimum fluoride concentration was achieved without significantly affecting the pH, turbidity, alkalinity, and hardness of the water.

Comments

In Copyright. URI: http://rightsstatements.org/vocab/InC/1.0/ This Item is protected by copyright and/or related rights. You are free to use this Item in any way that is permitted by the copyright and related rights legislation that applies to your use. For other uses you need to obtain permission from the rights-holder(s).

DOI

10.25777/5pkd-jk68

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