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  • Gidstedt, Simon, et al. (author)
  • Chemically enhanced primary treatment, microsieving, direct membrane filtration and GAC filtration of municipal wastewater : a pilot-scale study
  • 2022
  • In: Environmental Technology (United Kingdom). - : Taylor and Francis Ltd.. - 0959-3330 .- 1479-487X. ; , s. 12
  • Journal article (peer-reviewed)abstract
    • Chemically enhanced primary treatment (CEPT) followed by microsieving and direct membrane filtration (DMF) as ultrafiltration, was evaluated on pilot scale at a municipal wastewater treatment plant. In addition, a granular activated carbon (GAC) filter downstream of DMF was evaluated for the removal of organic micropollutants. Up to 80% of the total organic carbon (TOC) and 96% of the total phosphorus were removed by CEPT with microsieving. The additional contribution of subsequent DMF was minor, and only five days of downstream GAC filtration was possible due to fouling of the membrane. Of the 21 organic micropollutants analysed, all were removed (≥ 98%) by the GAC filter until 440 bed volumes, while CEPT with microsieving and DMF removed only a few compounds. Measurements of the oxygen uptake rate indicated that the required aeration for supplementary biological treatment downstream of CEPT with microsieving, both with and without subsequent DMF, was 20−25% of that in the influent wastewater. This study demonstrated the potential of using compact physicochemical processes to treat municipal wastewater, including the removal of organic micropollutants.
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  • Takman, Maria, et al. (author)
  • Återanvändning av renat avloppsvatten : Potential efter rening med en membranbioreaktor följt av granulerat aktivt kol
  • 2022
  • Reports (pop. science, debate, etc.)abstract
    • The treated wastewater from a full scale MBR and GAC reached drinking water quality regarding metals, but not bacteria. The water quality is however assessed as sufficient for irrigation or as a source water for drinking water production, based on the parameters analyzed in the project. The concentrations of organic micro pollutants were similar to the ones measured in Swedish drinking water sources, and hence similar to concentrations that we accept in the water we use for drinking water production.
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