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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 …
Investigating Fate Of Silver Nanoparticles In Wastewater Biofilms, Connie Marie Walden
Investigating Fate Of Silver Nanoparticles In Wastewater Biofilms, Connie Marie Walden
Graduate Theses and Dissertations
As industrial advances make everyday life easier for human kind, the processes by which we need to maintain sanitary conditions for both water and wastewater treatment will become increasingly complex. Innovations in food packaging and textile design incorporate engineered nanoparticles (ENPs) to increase antimicrobial properties of clothing, maintain product color, and keep food in packaging from spoilage. For most products, ENPs released will enter the sanitary sewer system, and ultimately wastewater treatment plants. Biofilms grow universally on surfaces where a protective layer of extracellular polymeric substances (EPS) shields attached cells from stressors. In wastewater treatment, complex biofilms are utilized as …