Biological nutrient removal in an MBR treating municipal wastewater with special focus on biological phosphorus removal

Hector Monclús; Jan Sipma; Giuliana Ferrero; Ignasi Rodriguez-Roda; Joaquim Comas

doi:10.1016/j.biortech.2010.01.038

Biological nutrient removal in an MBR treating municipal wastewater with special focus on biological phosphorus removal

Bioresour Technol. 2010 Jun;101(11):3984-91. doi: 10.1016/j.biortech.2010.01.038.

Authors

Hector Monclús¹, Jan Sipma, Giuliana Ferrero, Ignasi Rodriguez-Roda, Joaquim Comas

Affiliation

¹ Laboratory of Chemical and Environmental Engineering (LEQUiA), Institute of the Environment, University of Girona, E17071 Girona, Spain.

PMID: 20137918
DOI: 10.1016/j.biortech.2010.01.038

Abstract

The performance of an MBR pilot plant for biological nutrient removal was evaluated during 210days of operation. The set point values for the internal recycles were determined in advance with the use of an optimisation spreadsheet based on the ASM2d model to optimise the simultaneous removal of C, N and P. The biological nutrient removal (BNR) efficiencies were high from the start of operation with COD and N removal efficiencies of 92+/-6% and 89+/-7, respectively. During the course of the experiment P removal efficiencies increased and finally a P-removal efficiency of 92% was achieved. The activity of poly-phosphate accumulating organisms (PAOs) and denitrifying poly-phosphate accumulating organisms (DPAOs) increased and the specific phosphate accumulation rates after 150days of operation amounted to 13.6mgPg(-1)VSSh(-1) and 5.6mgPg(-1)VSSh(-1), for PAOs and DPAOs, respectively.

Publication types

Research Support, Non-U.S. Gov't

MeSH terms

Bioreactors*
Membranes, Artificial*
Phosphorus / isolation & purification*
Pilot Projects
Water Pollutants / isolation & purification*

Substances

Membranes, Artificial
Water Pollutants
Phosphorus