상하수도학회지 (Journal of Korean Society of Water and Wastewater)

  • 제16권6호
  • /
  • Pages.733-740
  • /
  • 2002
  • /
  • 1225-7672(pISSN)
  • /
  • 2287-822X(eISSN)
대한상하수도학회 (The Korean Society of Water and Wastewater)
권호 표지

하수슬러지의 산과 초음파 처리에 따른 ECP(exocellular polymers)의 거동이 탈수성과 침강성에 미치는 영향

Effects of ECP (exocellular polymers) Changes to the Dewaterability and Settlability of Wastewater Sludge Pretreated by Acid and Ultrasonic

  • 황선진 (경희대학교 환경.응용화학대학 및 환경연구센터) ;
  • 정규호 (경희대학교 환경.응용화학대학 및 환경연구센터) ;
  • 황규대 (경희대학교 환경.응용화학대학 및 환경연구센터)
  • 투고 : 2002.09.06
  • 심사 : 2002.11.25
  • 발행 : 2002.12.15
PDF 다운로드
⟨ 이전 논문 다음 논문 ⟩

초록

The effects on dewaterability and settlability of wastewater sludge according to acid and ultrasonic pretreatment which was expected to change ECP (exocellular polymers) compounds in the sludge and bulk solution was investigated. Though ECP which attached to the sludge could stimulate coagulation of sludge particles by bridging effect, but ECP in the bulk solution deteriorated dewaterability and settlability of the sludge on the contrary. That is as the pH of the solution was decreased to 3 gradually by acid treatment, proportionally ECP in the bulk solution was attached to the sludge flocs and resulted in improvement of dewaterability and settlability of the sludge. In case of ultrasonic pretreatment, with proportional to the intensity and duration of ultrasonic application, ECP was detached and extracted from sludge flocs and these phenomena deteriorated dewaterability and settlability. Also because of the increasement of minute sludge particles according to ultrasonic, dewaterability became so much the worse.

키워드

참고문헌

  1. Biotechnology and Bioengineering v.22 no.5 Relationship between Bulking and Physicochemical-Biological Properties of Activated Sludge Beccari, M.;Mappelli, P.;Tandoi, V. https://doi.org/10.1002/bit.260220506
  2. Analytical Biochemistry v.72 no.1-2 A Rapid and Sensitive method for the Quantitation of Microgram Quantities of Protein Utilizing the Principle of Protein-Dye Binding Bradford, M.M. https://doi.org/10.1016/0003-2697(76)90527-3
  3. Water Research v.35 no.11 Effect of Acid and Surfactant Treatment on Activated Sludge Dewatering and Settling Chen, Y.;Yang, H.;Gu, G. https://doi.org/10.1016/S0043-1354(00)00565-0
  4. Journal of Environmental Engineering v.119 no.1 Mechanism for Overdosing in Sludge Conditioning Christensen, J.R.;Sorensen, P.R.;Christensen, G.L.;Hansen, J.A. https://doi.org/10.1061/(ASCE)0733-9372(1993)119:1(159)
  5. Water Research v.35 no.4 Observations on Changes in Ultrasonically Treated Waste-Activated Sludge Chu, C.P.;Chang, Bea-Ven;Liao, G.S.;Jean, D.S.;Lee, D.J. https://doi.org/10.1016/S0043-1354(00)00338-9
  6. Analytical Chemistry v.28 no.3 Colorimetric Method for Determination of Sugars and Related Substances Dubois, M.;Gilles, K.A.;Hamilton, J.K. https://doi.org/10.1021/ac60111a017
  7. Vatten v.31 The Role of Natural Extracellular Polymers in the Bioflocculation and Dewatering of Sludge Henning Ryssov-Nielsen M.S.C.
  8. Water Environment Research v.69 no.2 The Effect of Cations on the Settling and Dewatering of Activated Sludge: Laboratory Results Higgins, M.J.;Novak, J.T. https://doi.org/10.2175/106143097X125371
  9. The Journal of General and Applied Microbiology v.17 no.6 Floc-Forming Bacteria isolated from Activated Sludge Kato, A.;Izaki, K.;Takahashi, H. https://doi.org/10.2323/jgam.17.439
  10. Enzyme and Microbial Technology v.12 no.2 Effect of Sonication on Activated Sludge King, R.O.;Forster, C.F. https://doi.org/10.1016/0141-0229(90)90082-2
  11. Biotechnology and Bioengineering v.35 no.1 Structure of Activated Sludge Flocs Li, D.H.;Ganczarczyk, J.J. https://doi.org/10.1002/bit.260350109
  12. J. Water Poll. Control Fed. v.60 The Blinding of Sludge during Filtration Novak, J.T.;Goodman, G.L.;Pariroo, A.;Huang, J.
  13. Ibid v.44 Biological Conditioning for Improved Sludge Filterability Paker, D.G.(et al.)
  14. Ibid v.44 Bacterial Exocellular Polymers and Biological Flocculation Pavoni, J.L.(et al.)
  15. Water Research v.10 no.1 The Nature of Activated Sludge Flocs Steiner, A.E.;McLaren, D.A.;Forster, C.F. https://doi.org/10.1016/0043-1354(76)90153-6
  16. Water Research v.27 no.5 Bioflocculation in Activated Sludge: An Analytical Approach Urbain, V.;Block, J.C.;Manem, J. https://doi.org/10.1016/0043-1354(93)90147-A