Detail publikace

Tertiary Treatment of Wastewater by Phosphorus Precipitation – Pilot Scale Test of Flotation Utilization for Suspension Separation

HOUDKOVÁ, L. ČMARADOVÁ, M. STRNADEL, P. CHLÁDKOVÁ, H. BORÁŇ, J.

Originální název

Tertiary Treatment of Wastewater by Phosphorus Precipitation – Pilot Scale Test of Flotation Utilization for Suspension Separation

Typ

článek ve sborníku ve WoS nebo Scopus

Jazyk

angličtina

Originální abstrakt

A research published in this paper is focused on a phosphorus removal from municipal wastewater. A technology consisting of chemical precipitation and flotation was tested to simulate a tertiary stage of wastewater treatment plant. Biologically treated wastewater with a very low concentration of total phosphorus (approx. 1.2 mg/L) was used. The ferric sulphate solution was used as a precipitant. The precipitate was removed by dissolved air flotation which took place in a pilot scale flotation unit Kunst-i-flot. This is an experimental device that was designed for thickening of sewage sludge (inlet pump flow ranges from 0.7 to 5.0 m3/h). The target of the experiments was to determine whether this technology is applicable in case of low inlet concentration of total phosphorus in the wastewater. The influence of the ratio Fe3+/P, the amount of air used for flotation and the hydraulic retention time in the tank for slow mixing were studied. The significant influence of ratio Fe3+/P was proved, while increasing of air fed in flotation unit had no positive effect. It was found an optimum dose of ferric sulphate solution approx. 2 g Fe3+/g P. The phosphorus removal efficiency was 50 %. Increasing of ferric sulphate dose did not decrease the phosphorus concentration in wastewater effluent, which was usually approx. 0.4 mg/L and higher.

Klíčová slova

wastewater treatment, phosporus removal, DAF

Autoři

HOUDKOVÁ, L.; ČMARADOVÁ, M.; STRNADEL, P.; CHLÁDKOVÁ, H.; BORÁŇ, J.

Rok RIV

2014

Vydáno

23. 8. 2014

Nakladatel

Aidic Servizi S.r.l.

Místo

Milan, Italy

ISBN

978-88-95608-30-3

Kniha

Proceedings of the 17th CONFERENCE ON PROCESS INTEGRATION, MODELLING AND OPTIMISATION FOR ENERGY SAVING AND POLLUTION REDUCTION PRES 2014

ISSN

2283-9216

Periodikum

Chemical Engineering Transactions

Ročník

39

Stát

Italská republika

Strany od

1243

Strany do

1248

Strany počet

6

BibTex

@inproceedings{BUT109228,
  author="Lucie {Houdková} and Miroslava {Čmaradová} and Petr {Strnadel} and Helena {Chládková} and Jaroslav {Boráň}",
  title="Tertiary Treatment of Wastewater by Phosphorus Precipitation – Pilot Scale Test of Flotation Utilization for Suspension Separation",
  booktitle="Proceedings of the 17th CONFERENCE ON PROCESS INTEGRATION, MODELLING AND OPTIMISATION FOR ENERGY SAVING AND POLLUTION REDUCTION PRES 2014",
  year="2014",
  journal="Chemical Engineering Transactions",
  volume="39",
  pages="1243--1248",
  publisher="Aidic Servizi S.r.l.",
  address="Milan, Italy",
  doi="10.3303/CET1439208",
  isbn="978-88-95608-30-3",
  issn="2283-9216"
}