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New Innovation of Water Infrastructure

New Innovation of Water Infrastructure. November 18, 2013 Joonhong Park. Top 5 World’s Future Issues. Energy Water Food Health Environment. Resource Recovery from Wastewater. Water Energy resource chemicals (methane, H2, N2O, electricity) Nutrient fertilizers (N, P)

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New Innovation of Water Infrastructure

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  1. New Innovation of Water Infrastructure November 18, 2013 Joonhong Park

  2. Top 5 World’s Future Issues • Energy • Water • Food • Health • Environment

  3. Resource Recovery from Wastewater • Water • Energy resource chemicals (methane, H2, N2O, electricity) • Nutrient fertilizers (N, P) • Value-added chemicals (medicines, food and/or additives, polymers for industrial purposes)

  4. Current wastewater treatment system Home -toilet (black water; high BOD) -bathroom(grey water; low BOD) -kitchen (food waste + water; low BOD in Korea) Waste Water (BOD= 200 mg/l) Storm water (우수/오수 합류관거) Aerobic Activated Sludge Process in Wastewater Treatment Plant (aeration cost > 60% of total energy cost) Effluent Influent (BOD < 200 mg/l) Wasted Sludge Problems: energy consuming system without resource recovery

  5. Biochemical Processes in Anaerobic Digestion Proteins Carbohydrates Lipids Amino acids Simple sugars Glycerol /LCVAs Methane Fermentation Hydrogen/CO2 Acetate SCVAs Methane Methane + Acetate CO2 Acid formation Methanogenesis

  6. Alternative way to RR from WW: Concentration and Anaerobic Digestion Home (High BOD) -toilet black-water -food waste High-Strength Waste Water (BOD > 10,000 mg/l) Concentration by Membrane or Reuse by WWT (중수도) Home (Low BOD) -bathroom grey-water -kitchen grey-water No storm water (우수/오수 병류관거) Post-Treatments (N, P removal from effluent) Anaerobic Digestion (methane production) Influent (BOD < 10,000 mg/l) Disadvantage: Long hydraulic retention time (HRT) and effluent post-treatment required

  7. Nutrient Recovery Phosphorus (P) mining resource will be completely consumed within 40 years. Magnesium ammonium phosphate (struvite; MgNH4PO4·6H2O) formation from wastewater has been regarded as nutrient recovery since Booker et al, 1999. In Swiss, ash from combustion of biomass is being stored in designated landfills until P mining resource will be completed. N/P recovery from no-mix toilet [source-separated urine]: urine contains most of the nutrients in domestic wastewater but makes up less than 1% of total wastewater. In addition, better ways to remove organic micropollutants from human metabolites (see Maurer et al., 2006; Gethke et al., 2007; ) <Crystal structure of struvite>

  8. New Toilet - 그 진지함과 진화 Conventional Toilet => No Mix => Vacuum => No Mix Vacuum => Future?? http://www.youtube.com/watch?v=TvhgpHHSZA0

  9. E-W-F Nexus: Urban Eco-farming • http://www.youtube.com/watch?v=XIdP00u2KRA • http://www.youtube.com/watch?v=XWUt6hT_8Lo Vertical Farming No Soil Farming Indoor Light Hydrogel film

  10. The 3rd Project: Mission & Guideline MISSION: Design an innovative water infrastructure for toilet, washing area, kitchen and others in buildings or houses Guideline: (1) Define the scope of your design (2) Summarize the status of the current technologies and criticize the current technologies (3) Research Needs (4) Introduce your idea (5) Expected effects and advantages over old technology (6) Technologies to be further developed for realizing your ideas Constrains: (1) Original, (2) Technically possible, (3) Economical (4) Water and other resources to be recovered and reused

  11. 문헌조사 추천 URL • 학술논문 검색 사이트 • 국내 논문 : http://www.riss.kr/index.do • 국외 논문 : http://www.scopus.com/home.url • 특허 검색 사이트 - http://search.wips.co.kr/ • 언론 및 뉴스 검색 사이트 - http://www.kinds.or.kr/ • 법제처 (관련 법령 및 규제) 사이트 - http://www.moleg.go.kr/main.html • 국가 연구 과제 보고서 통합 사이트 - http://report.ndsl.kr/index.do • 참조 : 구글및 네이버 검색은 자유롭게 이용가능

  12. The 3rd Project: Schedule & Evaluation Schedule: • Dec. 02: Choose a topic (Brain Storming in Class) • Dec. 04: Consulted from Advisors (Professor and TAs) in Class • Dec. 09: No Class • Dec. 11: Oral Presentation (10 min presentation, 5 min discussion) Submit PPT file + reference list, and meeting memo (회의록) Evaluation: • Oral Presentation and Discussion (50%) • Organization and Contents in Power Point Slides (30%) • References (10%) • Participation (10%) Contributions of Individual Projects • Bridge Project (40%) + Fracture Project (30%) + Water Infra (20%) • Participation (10 %; attendance, meeting memo, individual responsibility)

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