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RESEARCH PRODUCT
Influence of sludge age on enhanced phosphorus removal in biological systems
J. M. Penya-rojaJosé FerrerManuel A. RodrigoAurora Secosubject
chemistry.chemical_classificationAnimal scienceEnhanced biological phosphorus removalEnvironmental Engineeringgenetic structuresChemistryPhosphorusInorganic chemistrychemistry.chemical_elementFatty acidAnaerobic exerciseWater Science and Technologydescription
The phosphorus removal process was studied in a bench-scale plant for a period of 300 days. The process was observed to depend greatly on two parameters: the amount of volatile fatty acid (VFA) taken up in the anaerobic stage and sludge age. For a given sludge age, phosphorus release versus VFA uptake in the anaerobic stage could be fitted to a straight line, while phosphorus uptake in the non-anaerobic stages fitted a logarithmic curve. Thus, phosphorus removal occurred within a limited VFA uptake range. The range width and the phosphorus removal capacity varied with sludge age.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 1996-07-01 | Water Science and Technology |