Atv Dvwk A 131 Epdf Top Link

The full German title of the standard is "Bemessung von einstufigen Belebungsanlagen" — . It is applicable to the design of primary treatment systems for community wastewater, ensuring that the recommended design values comply with the German Wastewater Ordinance ( AbwV ) from February 9, 1999, and the requirements of the Annex 1.

┌──────────────────────────────────────────────┐ │ INFLUENT WASTEWATER │ │ (Flow rates, COD/BOD5, Nitrogen, Temp) │ └──────────────────────┬───────────────────────┘ │ ▼ ┌──────────────────────────────────────────────┐ │ 1. BIOLOGICAL REACTOR (AERATION) │ │ • Aerobic Sludge Age Calculation │◄────────┐ │ • Carbon Degradation, Nitrification │ │ │ • Oxygen Transfer Rate (OTR) Sizing │ │ └──────────────────────┬───────────────────────┘ │ Activated │ Mixed Liquor │ Sludge │ Suspended Solids (MLSS) │ Return ▼ │ Loop ┌──────────────────────────────────────────────┐ │ │ 2. SECONDARY SETTLING TANK │ │ │ • Solids Loading Rate & Sludge Volume Index │ │ │ • Clear Water Separation (h1 - h4 Zones) │─────────┘ └──────────────────────┬───────────────────────┘ │ ▼ ┌──────────────────────────────────────────────┐ │ TREATED EFFLUENT │ └──────────────────────────────────────────────┘ 1. Dimensioning the Biological Reactor atv dvwk a 131 epdf top

Based on the subject matter, the request appears to be for a feature profile on the standard (the "epdf" likely refers to the electronic PDF format of the document). The full German title of the standard is

The revised ATV-DVWK-A 131 E (2000) brought significant, more stringent improvements over the 1991 issue: BIOLOGICAL REACTOR (AERATION) │ │ • Aerobic Sludge

The primary goal of the standard is to provide a reliable, empirical framework for engineers to calculate the physical dimensions and operational parameters of wastewater treatment plants (WWTPs). It is tailored to achieve specific effluent quality criteria, including the removal of: (BOD and COD). Nitrogen (via nitrification and denitrification).