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WATER SUPPLY – FINAL PRESENTATION

WATER SUPPLY – FINAL PRESENTATION. Amelia Quilon , Laura Reisenauer , Rayvion Sanford, Sarah Watzman. LAURA REISENAUER- aka the girl who rarely drinks water! Third year Env.E Team lead. AMELIA QUILON - aka the girl who only eats peanut butter  ! Third year ISE Tilapia lead.

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WATER SUPPLY – FINAL PRESENTATION

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  1. WATER SUPPLY – FINAL PRESENTATION Amelia Quilon, Laura Reisenauer, Rayvion Sanford, Sarah Watzman

  2. LAURA REISENAUER- aka the girl who rarely drinks water! • Third year Env.E • Team lead • AMELIA QUILON - aka the girl who only eats peanut butter ! • Third year ISE • Tilapia lead • SARAH WATZMAN - aka the girl who never frowns ! • Third year ME • Bio-digester lead • RAYVION SANFORD- aka the girl who severely hates bugs! • Third year Chem.E • Communication lead Participants

  3. Main Problem Side Problems Scope: MdL has a non-functioning biodigester. MdL has a not fully functional tilapia pond. Objective: Find the root cause of the biodigester’s problem. Provide MdL a plan so that the biodigester becomes a stable, functional piece. Repair the tilapia pond. Develop a yearly schedule for tilapia harvesting to maximize yield. • Scope: • MdL frequently loses electricity that powers their lift pump and distribution pump. • Objective: • Explore alternative energy sources to either back-up pumps during power outages or replace grid. • Increase water storage capacity to mitigate problems occurring when there’s no electricity. Problem

  4. Generator Additional Storage Capacity Cost: $5,000 Feasibility: 900 pound tank Support issues – 13,000 pound tank when full Diameter and dimensions (Saul confirmed this information) • Requirements: 20 kW generator needed to overcome initial in-rush. • $20,000 for 20 kW generator • $600 for variable frequency driver (another pricey option!) Is this even a problem? MdL had only used a water truck 2 – 3 times over several years! Pre-Pre Trip Work

  5. Biodigester Tilapia Pond What has worked already and what is currently working? Section 1 is functional Sections 2 and 3 are leaking How can MdL fully utilize the tilapia pond? Protein source for the children Potential revenue generator? • Discoveries from last trip – clogged, too many solids, too basic water • Sump pump is on site • What does the biodigester need before it can be fully operational? • Poop and H2O! • Sustainability and training Pre-Trip Work

  6. Biodigester Tilapia Pond Sections 2 and 3 drained and cleaned Sections 2 and 3 patched Could not be tested for leaks due to water issues Pump has been spliced so it can be used in both sections Animal rescue! Business plan Rotation Schedule • Benefit analyzed • Contents fully removed • Composting pile “organized” and dedicated to garden • Manure on site • Composting posters created • Gas line replaced • Staff trained and informed Objectives Achieved

  7. Biodigester Tilapia Pond MdL is already thinking of re-surfacing the pond. MdL should stagger each section to increase the times each year they harvest. Use pump in middle section. Use spliced hose in large section. • Once enough manure is obtained, initialize biodigester • Put compost from kitchens directly into biodigester • For less confusion, only use kitchen’s compost, not kids! • Use existing compost pile for garden • Gas lights by compost area Future Recommendations

  8. Questions?

  9. Appendix

  10. Assumptions: • One 100lb propane tank at MdL gets used every 15 days. • One bucket of compost (approx. 10 pounds) is added to biodigester daily. • 50.3 MJ/kg = energy density of propane (Wolfram Alpha) • 53 MJ/kg = energy density of methane (hypertextbook.com/facts/2004/Billywan.shtml • 265 cubic meters/ton = biogas production from food scraps • Calculations: • Methane: • (Wikipedia) • Propane: Energy produced from methane created from food scraps is 1/3 of the energy MdL’s propane tanks provide. Biogas Production Analysis

  11. Biogas Production Data

  12. Manure Procured Analysis

  13. Installation Volume Analysis

  14. Tilapia Production (every 6 mo.) • I tilapia = 1 pound • Section 1: 50 pounds • Section 2: 300 pounds • Section 3: 300-500 pounds (with use of pump) • Harvesting Schedule • Each section: 6 months or twice a year • Price • 1 pound of tilapia = 27 Lempira • Revenue Tilapia Revenue Analysis

  15. Tilapia Rotational Schedule

  16. Good (Bueno) • Beans (frijoles) • plantains/bananas (platano) • watermelon (sandia) • tortilla (tortilla) • lettuce (lechuga) • tomato (tomate) • pineapple (pina) • rice (arroz) • Bad (Mal) • Eggs (huevos) • bones (huesos) • meat (carne) • egg shells (cascarde de huevo) • paper (papel) • milk (leche) • cardboard (carton) • plastic (plastico) Composting Posters

  17. Biodigester– Chamber Dimensions

  18. Biodigester – Gas Pipe Dimensions

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