Guidelines for calculating the required volume based on sludge age, nitrogen removal (nitrification/denitrification), and phosphorus removal. Secondary Settling Tanks:
*PE = Population Equivalent
: Even the number of blades on a circular settling tank is calculated to ensure the "sludge blanket" remains stable. The Legacy atv dvwk a 131 epdf top
| Aspect | Details | | :--- | :--- | | | ATV-DVWK-A 131E: Dimensioning of Single-Stage Activated Sludge Plants [8†L4-L5] | | Original Language | German | | English Version | ATV-DVWK-A 131E (the "E" indicates the English edition) [8†L4-L5] | | Latest Version | May 2000 [1†L18][8†L5] | | Scope | Design of single-stage activated sludge plants for wastewater treatment [3†L15-L16] | | Key Focus | Biological reactor and secondary sedimentation tank design [2†L6-L7] | | Application Examples | Wastewater treatment plants, especially those requiring nitrogen and phosphorus removal | | Access Method | The standard is available for purchase as a physical document or as an ePDF [3†L4-L6] | | Availability | Widely available through online technical bookstores and library databases | Guidelines for calculating the required volume based on