Återvunnet vatten
: använda renat avloppsvatten i processen

Translated title of the thesis: Recycled water: use purified wastewater in the process
  • Emmelie Ek

Student thesis: University Diploma


The field study was done to investigate whether it was possible to use purified, filtered wastewater for polymer preparation and in the long run also as other process water at Ellinge treatment plant. The tests was performed in full scale with both water from the intermediate sedimentation and the final sedimentation. Through extensive sampling and analysis of results, it proved to be a working method without a negative impact on the polymer solution and sludge dewatering. However, more work and addiotional purification steps such as disinfection are required to implement the treated wastewater on the entire water system

Date of Award2021-Jun-28
Original languageSwedish
SupervisorStefan Trobro (Supervisor), Bengt-Göran Magnusson (Supervisor) & Lennart Mårtensson (Examiner)

Educational program

  • Advanced Vocational Training Programme in Water Supply, Waste Water Systems and Waste Management

University credits

  • 7,5 HE credits

Swedish Standard Keywords

  • Environmental Sciences (10502)
  • Water Treatment (20803)


  • sludge
  • polymer
  • sludge drainage
  • technical water
  • drinking water
  • waste water
  • recycled water

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