Abstract
Investigations were carried out for steady-state conditions on laboratory-scale model of an anaerobic-aerobic-anaerobic-aerobic configuration of the activated sludge process, for hydraulic detention time of 9.13 h and sludge age of 9, 16.4 and 28.3 days. Data was obtained on volatile suspended solids (MLVSS), adenosine triphosphate (ATP), oxygen uptake rate (OUR) and relative dehydrogenase activity (RDA) on the laboratory model and the extended aeration biological treatment unit at the ARAMCO treatment plant in Dhahran. A mathematical model was obtained based on the laboratory data, using a calibration method to estimate MLVSS for given values of OUR, RDA and ATP. Regression coefficients for MLVSS and OUR. MLVSS and RDA and MLVSS and ATP were determined. It was found that the mathematical model obtained does not adequately describe the inter-relationship between various parameters. The inter-relationship is a function of operational conditions occurring in the plant and too complex to be described by a mathematical model. MLVSS offers the best estimate and cannot be related by an equation with OUR, ATP and RDA.
| Original language | English |
|---|---|
| Pages (from-to) | 927-932 |
| Number of pages | 6 |
| Journal | Water Research |
| Volume | 19 |
| Issue number | 7 |
| DOIs | |
| State | Published - 1985 |
Keywords
- ATP
- MLVSS
- OUR
- RDA
- cell count
- microbial mass
- single activated sludge
- steady-state
ASJC Scopus subject areas
- Environmental Engineering
- Civil and Structural Engineering
- Ecological Modeling
- Water Science and Technology
- Waste Management and Disposal
- Pollution
