Atv Dvwk A 131 Epdf Top -

Use exact title “ATV-DVWK-A 131E: Dimensioning of Single-Stage Activated Sludge Plants” (English version exists).

: Establishes parameters for biochemical oxygen demand ( BOD5cap B cap O cap D sub 5 ), chemical oxygen demand ( CODcap C cap O cap D ), and total suspended solids ( TSScap T cap S cap S

| Temperature (°C) | Minimum sludge age (days) | |----------------|---------------------------| | 10 | 10 | | 12 | 8 | | 15 | 6 | | 18 | 5 | | 20 | 4 |

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The dimensioning for nitrogen removal is generally based on a wastewater temperature of to comply with strict environmental regulations. Core Components of the Standard

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Determining the maximum allowable flow rate.

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Aeration efficiency depends on:

The is a German technical standard designed to provide a systematic, calculation-based approach for sizing activated sludge plants. It is aimed at engineers and designers working on plants of all sizes, though historically it focused on those with more than 5,000 population equivalents (PT).

However, the from 2000 remains relevant for: