Design Review P13418 John Markidis Dan Charles Israel Powell An Vu

Specifications Filter all particles above 5 Microns Production cost of <$20 Reduce Turbidity by % Life Cycle of 6000 Hours (2-5 years) Flow rate of 1 L/min Little to no upkeep, consumables needed should be locally available Reduce fluoride content by 50-70%

Functional Decomposition

Feasibility Studies Fluoride Removal Particle Removal

Fluoride Removal Electro dialysis Adsorption – locally available sources o Fixed bed adsorption in a packed column Bone Char – charred at 500 degrees C or optimal adsorption Egg Shells

Fluoride Removal Concerns Assuming starting concentration of 20 mg/L, A life expectancy of 6000hrs with a flow rater of 1 L/min 5.5 milligrams of fluorine adsorbed per gram of adsorbent required Adsorption of Fluoride from Water Solution on Bone Char Nahum A. Medellin-Castillo,† Roberto Leyva-Ramos,*,†,‡ Raul Ocampo-Perez,† Ramon F. Garcia de la Cruz,† Antonio Aragon-Pin ˜ a,† Jose M. Martinez-Rosales,§ Rosa M. Guerrero-Coronado,† and Laura Fuentes-Rubio† To achieve a 50% reduction in fluoride concentration over the life of the filter kg ( lbs) of bone char would be required

Particle Removal Mesh Screening o Plastic/Nylon o Stainless Steel Mechanical Sieve Cloth/T-shirt Centrifuge Crumb Rubber Flocculent

Brain Storming & System Selection

System Comparison Pugh Diagram’s

Pugh T-shirt

Pugh System 1

Risk Assessment

Project Planning Gantt Chart Critical Path Next Steps

Gantt Chart

Critical Path Design Review Propose Design Concept Refine Project Based on Customer/Expert Feedback Testing Test System Design Analyze Data, Further Refine Design Detailed Design Finalize Functional Design Finalize Structural Design/Create BOM

Next Steps Order Required Components o Order filter components o Order components to create sample Sample Preparation o Select a starting turbidity level and standard preparation method o Select a starting fluoride concentration and standard preparation method o Modify test rig to test overall system Develop Test Procedure o Develop test procedure for fluoride removal o Develop test procedure for particle removal o Develop test method for overall system