1 / 9

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)

zanna
Download Presentation

New Innovation of Water Infrastructure

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  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

More Related