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Theses/Dissertations

Water purification

1973

Articles 1 - 2 of 2

Full-Text Articles in Engineering

Removal Of Color From Surface Water In Central Florida, Joseph R. Wanielista Jan 1973

Removal Of Color From Surface Water In Central Florida, Joseph R. Wanielista

Retrospective Theses and Dissertations

The USPHS limits color in water to 15 color units. However, it is desirable to remove all the color. Color in surface water is mainly due to humic substances and was found in concentrations varying up to 450 color units. Removal of color by coagulation and flocculation has been practiced over the years. The mechanisms involved have not yet been fully understood. During the course of this investigation, a literature survey, studying the nature of color, mechanisms or color removal, and optimum color removal conditions, has been conducted. Samples have been obtained from surface waters in Central Florida; namely Big …


The State-Of-The-Art Of The Coagulation/ Flocculation Process, David William Bouck Jan 1973

The State-Of-The-Art Of The Coagulation/ Flocculation Process, David William Bouck

Retrospective Theses and Dissertations

This report has been prepared with the idea of briefly summarizing the most important principles underlying the coagulations/flocculation process as it applies to water and wastewater treatment. The production of potable water from a supply which has been contaminated by naturally-occurring or man-made pollutants has been an object of concern throughout history. Several broad aspects have been considered in the report, such as the history, the nature and physical chemistry of colloidal particles, the theories of and the factors affecting coagulation/flocculation, and control of the coagulation/flocculation process. It is advisable for those persons engaged in the dynamic environmental sciences to …