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Conduction of paper grade dependent COD-TOC-ratios as pre-condition for the replacement of the parameter COD in waste water legislation

Description: Das Projekt "Conduction of paper grade dependent COD-TOC-ratios as pre-condition for the replacement of the parameter COD in waste water legislation" wird vom Umweltbundesamt gefördert und von Papiertechnische Stiftung München durchgeführt. The objective is the determination of reliable COD-TOC ratios (incl. their margin of deviation) of biologically treated waste waters from the production of different paper grades. This is the prerequisite to derive new TOC limit values in the amended appendix no. 28. Additionally a proposal for a limit value referring N compounds based on TNb shall be developed. It was decided to investigate three mills from each paper grade which are: un-sized wood free papers (p.), sized wood free p., specialty p., coated wood free p., wood containing p., p. from recovered paper (with and without de-inked pulp). First investigations confirm ratios in the range mentioned above. The developed TOC limit values will be based on the analysed TOC values, production capacity and entitled waste water volumes. Recommended TNb values may reach at least 20 mg N/l or more. A statistical assessment of the data is still not possible due the low quantity of available results. The amendment of appendix 28 affect primarily paper & board mills, but also companies which construct waste water treatment plants, consulting bureaus and manufacturers of monitoring and control systems. If wrong COD-TOC ratios will be applied and more stringent limits will result, paper & board mills might loose the possibility to lower the waste water fee. Hence additional costs of several ten thousands of Euros will emerge which has to be avoided especially for sme paper & board mills.

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SupportProgram

Origin: /Bund/UBA/UFORDAT

Tags: München ? Kabeljau ? Schlichtemittel ? Biologische Abwasserbehandlung ? Altpapier ? Papierindustrie ? Stickstoff ? Zellstoff ? Abwasserbehandlungsanlage ? Papier ? Papierherstellung ? Pappe ? Reststoff ? Gebühr ? Gesamter organischer Kohlenstoff ? Abwasser ? Abwasserrecht ? Daten ? Kontrollsystem ? Mühle ? Vermeidungskosten ? REACH ? Grenzwert ?

Region: Bayern

Bounding box: 12.53381° .. 12.53381° x 47.795° .. 47.795°

License: cc-by-nc-nd/4.0

Language: Deutsch

Organisations

Time ranges: 2007-08-01 - 2009-07-31

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