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Full-Text Articles in Environmental Engineering
Accumulation Of Lead By Biofilms In Drinking Water Distribution Systems, Kaleb Oren Belcher
Accumulation Of Lead By Biofilms In Drinking Water Distribution Systems, Kaleb Oren Belcher
Graduate Theses and Dissertations
Recent crises, such as the one in Flint, MI, indicate that lead exposure from drinking water is a major health concern in the United States. Over six million lead service lines are still in use in the United States, and a universal protocol to safely remove these lead service lines from drinking water distribution systems has not yet been established. This paper calls to attention the potential hazard that biofilms pose as a source of lead in distribution systems, even after the removal of lead pipes. This study used a simulated water distribution system containing a lead source pipe and …
Direct Potable Reuse Of Wastewater, Dakota Rusk, Molly Churchwell, Lauren Clark, Sabrina Castle, Boyce Bethel, Aaron Henry
Direct Potable Reuse Of Wastewater, Dakota Rusk, Molly Churchwell, Lauren Clark, Sabrina Castle, Boyce Bethel, Aaron Henry
Chemical Engineering Undergraduate Honors Theses
Water is essential to our societies and mankind. Currently, 844 million people across the globe lack access to potable water. By 2025, it is projected that half of the world population will be in a region of water stress. The water crisis is often thought of as a problem limited to places that have always struggled to have clean water, but it is now affecting new areas such as the southwest United States. With increasing population demands and drought, the feasibility of direct potable reuse (DPR) of wastewater is being considered. According to an EPA report in 2017, there are …
Direct Potable Reuse Of Wastewater, Sabrina Castle
Direct Potable Reuse Of Wastewater, Sabrina Castle
Chemical Engineering Undergraduate Honors Theses
Water is essential to our societies and mankind. Currently, 844 million people across the globe lack access to potable water. By 2025, it is projected that half of the world population will be in a region of water stress.5 The water crisis is often thought of as a problem limited to places that have always struggled to have clean water, but it is now affecting new areas such as the southwest United States. With increasing population demands and drought, the feasibility of direct potable reuse (DPR) of wastewater is being considered. According to an EPA report in 2017, there are …
Comparing Ferrous Chloride And Ferrous Sulfate As Secondary Coagulants At The Beaver Water District Drinking Water Treatment Plant, Jenny Doyle
Graduate Theses and Dissertations
In November 2012, the Beaver Water District (BWD) switched primary oxidants from free chlorine to chlorine dioxide (ClO2) to curb formation of trihalomethanes, a regulated group of organic disinfection byproducts (DBPs). Because ClO2 is reduced to chlorite (ClO2-), a regulated inorganic DBP, BWD incorporated ferrous salt into their coagulation regime to quench chlorite to chloride. In this study, two ferrous salts - ferrous chloride (FC) and ferrous sulfate (FS) - were compared as secondary coagulants in combination with alum, the primary coagulant. Ferrous salts were dosed stoichiometrically to reduce chlorite and alum was dosed at percentages (0-100%) relative to a …