Standard Svensk standard · SS-EN 12255-15:2004

Avlopp - Reningsanläggning - Del 15: Luftningsbassänger för slam - Mätning av syretransport i rent vatten

Status: Gällande

Omfattning
This European Standard specifies the non-steady state measurement of the oxygen transfer rate and the oxygen transfer efficiency of aeration systems in activated sludge aeration tanks (see EN 12255-6) when filled with clean water. NOTE 1 This is known as the clean water test. NOTE 2 Since the method is based on completely mixed tanks or tanks with evenly distributed aerators or diffusers test results from certain aeration installations can be incorrect. NOTE 3 Under process conditions with mixed liquor the oxygen transfer rate and the oxygen transfer efficiency can be different from the clean water test results. This is expressed by the a-factor.

Ämnesområden

Avloppsvatten


Produktinformation

Språk: Engelska

Framtagen av: Avloppsteknik, SIS/TK 198/AG 03

Internationell titel: Wastewater treatment plants - Part 15: Measurement of the oxygen transfer in clean water in aeration tanks of activated sludge plants

Artikelnummer: STD-36465

Utgåva: 1

Fastställd: 2004-06-18

Antal sidor: 17