: Defining functional depths for separation, density flow, storage, and thickening ( 0;c6d; through
It looks like you’ve shared what seems to be a filename for a PDF, possibly related to a technical standard or document (the “A 131” and “DVWK” suggest it might be a German hydrological or engineering guideline — e.g., from the former Deutscher Verband für Wasserwirtschaft und Kulturbau ). Atv Dvwk A 131 E.pdf
The standard is a globally recognized guideline for the dimensioning of single-stage activated sludge plants . Developed by the German Association for Water, Wastewater and Waste (DWA, formerly ATV-DVWK), this document provides the technical framework for designing wastewater treatment facilities that meet strict effluent requirements. : Defining functional depths for separation, density flow,
The German ATV-DVWK Standard A 131E (May 2000) provides a standardized framework for the technical design and dimensioning of single-stage activated sludge plants. It outlines critical engineering components for biological reactor sizing and secondary settling tank design to ensure efficient nutrient removal in municipal wastewater treatment. Read the full standard document at GERMAN ATV-DVWK - AquaEnergy Expo Knowledge Hub The German ATV-DVWK Standard A 131E (May 2000)
The ATV-DVWK-A 131 E.pdf document outlines specific procedures for calculating the dimensions of essential treatment units: Atv Dvwk A 131 E.pdf Apr 2026