Albrechtsen, Hans-Jørgen

Boe-Hansen, Rasmus

Borch Nielsen, Peter

Vincentz Fischer, Erling

Wagner, Florian Benedikt

Apparatus for treating raw water in a biofilter The present invention relates to an apparatus in which raw water is treated through microbial activity where microbial activity is controlled by nutrients and other parameters. Some of the nutrients controlling the microbial activity are trace elements such as certain metals (Cu, Co, Cr, Mo, Ni, W, Zn or a mixture thereof). The apparatus comprising - a volume provided with an inlet (2) for raw water and an outlet (3) for water having been subjected to microbial activity, a filter and a trace element dosage device (13) are placed in this volume: - the filter comprises a filter material (4) including a porous filter material and a microbial biomass, the filter material is either stationary relative to the volume or comprises a particulate material, the filter material (4) is inserted in a fluid flow path generated by water flowing in direction from the inlet (2) to the outlet (3) or in the reverse direction, - the trace element dosage device (13) is positioned upstream of the porous filter material and microbial biomass and is configured to dose trace element(s) to the water flowing through the filter. A method for treating raw water by microbial activity whereby trace elements are dosed upstream of the filter is also claimed

Online Research Database In Technology

Apparatus comprising trace element dosage and method for treating raw water in biofilter -DTU Orbit (08/11/2017) Apparatus comprising trace element dosage and method for treating raw water in biofilterApparatus for treating raw water in a biofilter The present invention relates to an apparatus in which raw water is treatedthrough microbial activity where microbial activity is controlled by nutrients and other parameters. Some of the nutrientscontrolling the microbial activity are trace elements such as certain metals (Cu, Co, Cr, Mo, Ni, W, Zn or a mixturethereof). The apparatus comprising - a volume provided with an inlet (2) for raw water and an outlet (3) for water havingbeen subjected to microbial activity, a filter and a trace element dosage device (13) are placed in this volume: - the filtercomprises a filter material (4) including a porous filter material and a microbial biomass, the filter material is eitherstationary relative to the volume or comprises a particulate material, the filter material (4) is inserted in a fluid flow pathgenerated by water flowing in direction from the inlet (2) to the outlet (3) or in the reverse direction, - the trace elementdosage device (13) is positioned upstream of the porous filter material and microbial biomass and is configured to dosetrace element(s) to the water flowing through the filter. A method for treating raw water by microbial activity whereby traceelements are dosed upstream of the filter is also claimed. General informationState: PublishedOrganisations: Department of Environmental Engineering, Urban Water Engineering, Technical University of Denmark,Krüger A/SAuthors: Albrechtsen, H. (Intern), Wagner, F. B. (Intern), Borch Nielsen, P. (Ekstern), Boe-Hansen, R. (Ekstern), VincentzFischer, E. (Ekstern)Publication date: 2015 Publication informationCountry: International Bureau of the World Intellectual Property Organization (WIPO)Patent number: WO2015132283Priority date: 05/03/2014Priority number: EP2015054470Original language: EnglishMain Research Area: Technical/natural sciencesPublication: Research › Patent – Annual report year: 2015 

Apparatus comprising trace element dosage and method for treating raw water in biofilter

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Apparatus comprising trace element dosage and method for treating raw water in biofilter

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