Efficient Anaerobic Digestion for Highly Concentrated Particulate Organic Wastewater

고농도 입자성 유기폐수의 고효율 혐기성 소화 공정

  • Lee, Sungbum ;
  • Shin, Kyuchul ;
  • Kim, Huijoo ;
  • Kim, Hyunju ;
  • Choi, Changkyoo ;
  • Kim, Moonil
  • 이성범 (한양대학교 일반대학원 토목공학과) ;
  • 신규철 (에이텍이엔씨(주)) ;
  • 김희주 (한양대학교 일반대학원 토목공학과) ;
  • 김현주 (한양대학교 환경공학연구소) ;
  • 최창규 (한양대학교 BK21 첨단글로벌건설리더 양성사업단) ;
  • 김문일 (한양대학교 건설환경시스템공학전공)
  • Received : 2007.08.21
  • Accepted : 2008.01.03
  • Published : 2008.02.01

Abstract

It has been mentioned that CSTR (Completely Stirred Tank Reactor) and UASB (Upflow Anaerobic Sludge Blanket) processes, the existing anaerobic processes, have problems in the treatment of highly concentrated particulate organic wastewater (HCPOW). Therefore, this paper discusses the treatment possibility of distillery wastewater which is a typical HCPOW using ADEPT (anaerobic Digestion Elutriated Phased Treatment) process. In the comparison of CSTR and ADEPT, ADEPT produced much higher gas than that of CSTR removing more organic matters and suspended solids in ADEPT process, ADEPT had no effect on the decrease in pH by volatile fatty acids and showed steady pH in spite of relatively short HRT. In the results of removal rate according to recycle ratios between 6Qin and 2Qin in ADEPT, 6Qin showed high removal rate during the operation time. Therefore it appears that ADEPT had an applicability for the treatment of distillery wastewater. ADEPT could be a economical process, due to the short HRT, the energy recovery by the methane production, and the utilization for carbon source of produced organic acid from the ADEPT-acid reactor.

Acknowledgement

Supported by : 한국학술진흥재단