Preliminary investigation of rapid potassium efflux from activated sludge in response to peroxyacetic acid use

• Autorzy: Geneja M. , Plichta K.
• Języki publikacji: EN

Abstrakty

EN

Preliminary research on activated sludge potassium efflux (GGKE – glutathione-gated potassium efflux) as a result of peroxyacetic acid (PAA) dosing were performed. Similar to the case of chlorine dosing, the PAA dosing causes initiation of bacteria defense mechanisms related to the transformations of gluthathione tripeptide, resulting in the increase of potassium ion concentrations in the activated sludge environment. In the range of biomass concentration from 6.035 gMLSS/l to 9.331 gMLSS/l and applied peroxyacetic acid doses from 0.12 mg PAA/gMLSS to 3.55 mg PAA/gMLSS, the increase of potassium ions K+ concentration in the activated sludge environment after 10 minutes of reaction in batch varied from approximately 3 mg/l to 40 mg/l. The elementary increase of potassium ion concentrations (mg K+/gMLSS· l) was dependant on reaction time and the PAA dose. The elementary increase values varied from 0.5 mg K+/(gMLSS· l) for the dose of 0.3 mg PAA/gMLSS and 5 minutes reaction time to 4 mg K+/(gMLSS· l) for 2.5 mg PAA/gMLSS and reaction time equal to 20 minutes.

• Wydawca: -
• Czasopismo: Polish Journal of Environmental Studies
• Rocznik: 2009
• Tom: 18
• Numer: 6
• Opis fizyczny: p.1197-1201,fig.,ref.

Twórcy

autor

Geneja M.

• Civil and Environmental Engineering Faculty, Gdansk University of Technology, Narutowicza 11/12, 80-952 Gdansk, Poland

autor

Plichta K.

• Civil and Environmental Engineering Faculty, Gdansk University of Technology, Narutowicza 11/12, 80-952 Gdansk, Poland

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