Environmental Engineering Research

Korean Society of Environmental Engineers (대한환경공학회)
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Anaerobic Hydrogen Fermentation and Membrane Bioreactor (MBR) for Decentralized Sanitation and Reuse-Organic Removal and Resource Recovery

  • Paudel, Sachin (Department of Environmental Engineering, Changwon National University) ;
  • Seong, Chung Yeol (Department of Environmental Engineering, Changwon National University) ;
  • Park, Da Rang (Department of Environmental Engineering, Changwon National University) ;
  • Seo, Gyu Tae (Department of Environmental Engineering, Changwon National University)
  • Received : 2014.11.21
  • Accepted : 2014.12.30
  • Published : 2014.12.31
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Abstract

The purpose of this study is to evaluate integrated anaerobic hydrogen fermentation and membrane bioreactor (MBR) for on-site domestic wastewater treatment and resource recovery. A synthetic wastewater (COD 17,000 mg/L) was used as artificial brown water which will be discharged from urine diversion toilet and fed into a continuous stirred tank reactor (CSTR) type anaerobic reactor with inclined plate. The effluent of anaerobic reactor mixed with real household grey water (COD 700 mg/L) was further treated by MBR for reuse. An optimum condition maintained in anaerobic reactor was HRT of 8 hrs, pH 5.5, SRT of 5 days and temperature of $37^{\circ}C$. COD removal of 98% was achieved from the overall system. Total gas production rate and hydrogen content was 4.6 L/day and 52.4% respectively. COD mass balance described the COD distribution in the system via reactor byproducts and effluent COD concentration. The results of this study asserts that, anaerobic hydrogen fermentation combined with MBR is a potent system in stabilizing waste strength and clean hydrogen recovery which could be implemented for onsite domestic wastewater treatment and reuse.

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References

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