Tham khảo Bùn hoạt tính

  1. 1 2 Wastewater engineering: treatment and reuse (4th ed.). Metcalf & Eddy, Inc., McGraw Hill, USA. 2003. p. 1456. ISBN 0-07-112250-8
  2. 1 2 Operation and Control From the Water/ Wastewater Distance Learning Website of the Mountain Empire Community College in Virginia.
  3. 1 2 “Mathematics For Wastewater Operators” (PDF). 
  4. ↑ Eckenfelder, Jr., W. Wesley; Cleary, Joseph G. (2014). Activated Sludge Technologies for Treating Industrial Wastewaters (1st ed.). DEStech Publications. p. 234. ISBN 978-1-60595-019-8. Retrieved 29 December 2014.
  5. ↑ Code of Practice, Flows and Loads-2, British Water
  6. ↑  Review of UK and international standards Archived September 28, 2007, at the Wayback Machine.
  7. ↑  British Standard BS 6297:1983
  8. 1 2 3 Beychok, Milton R. (1967). Aqueous Wastes from Petroleum and Petrochemical Plants (1st ed.). John Wiley & Sons Ltd. LCCN 67019834
  9. ↑ http://www.thesourcemagazine.org/mark-van-loosdrecht-professor-at-delft-university-of-technology/.  |tựa đề= trống hay bị thiếu (trợ giúp)
  10. ↑ http://www.dutchwatersector.com/news-events/news/15338-first-of-three-nereda-wastewater-treatment-plants-in-ireland-took-flow.html.  |tựa đề= trống hay bị thiếu (trợ giúp)
  11. ↑ Benidickson, Jamie (2011). The Culture of Flushing: A Social and Legal History of Sewage. UBC Press. Retrieved 2013-02-07.

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