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Full-Text Articles in Engineering
An Investigation Of Fabric Filtration For The Removal Of Colloidal Turbidity From A Laboratory Water, David Brent Jansen
An Investigation Of Fabric Filtration For The Removal Of Colloidal Turbidity From A Laboratory Water, David Brent Jansen
Retrospective Theses and Dissertations
A kaolin in tapwater suspension was treated either with alum or one of two cationic polymers. The resulting suspension was filtered through various configurations of felt cloth filters. The kaolin suspension was adjusted to 100 JTU. Treatment by polymer consistently lowered the filtered effluent to less than 1 JTU. Jar tests were utilized to determine optimum coagulant dose for the tests. The formulation of a complete filter cake in the filter appeared to be the determining factor in the efficiency of water clarification by the filter. The literature lacked references to this concept as applied to water supply problems. The …
Nominal Molecular Weight Distributions Of Color, Toc, Tthm, Precursors And Acid Strength In A Highly Organic Potable Water Source, Jalil Fouroozi
Nominal Molecular Weight Distributions Of Color, Toc, Tthm, Precursors And Acid Strength In A Highly Organic Potable Water Source, Jalil Fouroozi
Retrospective Theses and Dissertations
This research investigated the relationships between molecular size and the TOC, TTHM, acid strength and color concentrations present in raw and coagulated water from Lake Washington. Three separate coagulants were utilized for investigation. There were: Al, Fe and Mg. Results indicated that the majority of the TOC, color and TTHM precursors were in the colloidal size range and removed by coagulation. The remaining TTHM precursors are mostly molecular and require a process other than coagulation for removal from the potable water before environmental standards are met.