: A dedicated calculation program designed specifically for Standard ATV-DVWK-A 131E.
in wastewater treatment. Originally published in May 2000 by the German Association for Water, Wastewater, and Waste (DWA), this guideline provides the mathematical framework for sizing biological reactors and secondary settling tanks to ensure environmental compliance. The Story of a Design Standard atv dvwk a 131 epdf top
Sludge age (θ) is the . For nitrifying plants: : A dedicated calculation program designed specifically for
: Sizing based on required sludge age, oxygen transfer needs, and nutrient removal requirements. Secondary Settling Tank and Waste (DWA)
The methodology in ATV-DVWK-A 131 follows a systematic procedure to ensure treatment efficiency:
The official English version is titled: “Dimensioning of Single-Stage Activated Sludge Plants” (ATV-DVWK-A 131E, May 2000 / later DWA-A 131E).