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The Effects Of Ph On Enhanced Biological Phosphorus Removal (Ebpr) With Propionic Acid As The Dominant Volatile Fatty Acid (Vfa), Seyed Malekjahani
The Effects Of Ph On Enhanced Biological Phosphorus Removal (Ebpr) With Propionic Acid As The Dominant Volatile Fatty Acid (Vfa), Seyed Malekjahani
Electronic Theses and Dissertations
pH control is a tool to improve some aspects of Enhanced Biological Phosphorus Removal (EBPR) process. Filipe et al (2001a, 2001b, and 2001c) found strong evidence that the stability of EBPR systems can be improved by increasing the pH of the anaerobic zone, thereby creating conditions where phosphorus-accumulating organisms (PAOs) are able to take up acetate faster than glycogen-accumulating organisms (GAOs). They explained this observation by comparing the growth rate of phosphorus-accumulating organisms (PAOs) and glycogen-accumulating organisms (GAOs) and found that pH has little effect on PAOs growth rate but adversely affects GAOs growth rate when it increases (at pH …