A gradual change in the mode and location of intracellular storage of polyphosphate was observed during a long-term pilot-scale evaluation of operating efficiency of a number of EBPR process configurations used for model calibration. The location of intracellular polyphosphate, (defined by the extraction procedure), was seen to change from a long chain form to a lower molecular weight or short chain form under the influence of nitrate return to the anaerobic zone, which was related to a number of factors including influent character (TKN/COD, influent RBCOD) and process configuration, however during trials with high TKN/COD (greater than or equal to 0.13) the storage of polyphosphate was observed to exist predominately in the short chain form. The behaviour of EBPR biomass in a sequencing batch reactor demonstrated mobilisation and storage of polyphosphate from only the low MW form. (C) 1998 IAWQ. Publsihed by Elsevier Science Ltd.
The distribution and movement of polyphosphate and associated cations in sludges from NDEBPR plants in different configurations at pilot scale / K. C., Lindrea; G., Lockwood; Majone, Mauro. - In: WATER SCIENCE AND TECHNOLOGY. - ISSN 0273-1223. - STAMPA. - 37:4-5(1998), pp. 555-562. (Intervento presentato al convegno 2nd International Conference on Microorganisms in Activated Sludge and Biofilm Processes tenutosi a BERKELEY, CA nel JUL 21-23, 1997) [10.1016/s0273-1223(98)00159-0].
The distribution and movement of polyphosphate and associated cations in sludges from NDEBPR plants in different configurations at pilot scale
MAJONE, Mauro
1998
Abstract
A gradual change in the mode and location of intracellular storage of polyphosphate was observed during a long-term pilot-scale evaluation of operating efficiency of a number of EBPR process configurations used for model calibration. The location of intracellular polyphosphate, (defined by the extraction procedure), was seen to change from a long chain form to a lower molecular weight or short chain form under the influence of nitrate return to the anaerobic zone, which was related to a number of factors including influent character (TKN/COD, influent RBCOD) and process configuration, however during trials with high TKN/COD (greater than or equal to 0.13) the storage of polyphosphate was observed to exist predominately in the short chain form. The behaviour of EBPR biomass in a sequencing batch reactor demonstrated mobilisation and storage of polyphosphate from only the low MW form. (C) 1998 IAWQ. Publsihed by Elsevier Science Ltd.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
