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Improvement in the removal of micropollutants at Porto Marghera industrial wastewaters treatment plant by MBR technology

By Cattaneo S., Marciano F., Masotti L., Vecchiato G., Verlicchi P. and Zaffaroni C.

Abstract

This paper deals with the case of one of the most important industrial application of membrane technology in the world: the upgrading of the main industrial wastewater treatment plant (WWTP) of the Petrochemical site of Porto Marghera, Northern Italy, completed on December 2005 and tested on September 2006. \ud It describes the principal interventions of the plant upgrading and it discusses the removal of conventional pollutants and micropollutants obtained during the test periods. \ud The plant upgrading consisted of a series of improvements of the existing industrial WWTP, in order to increase the removal efficiency of the total suspended solids and the associated removal of ten micropollutant compounds, the so called forbidden substances. The most important intervention was the conversion of the existing activated sludge section into a membrane biological reactor, in order to guarantee the respect of the severe limits imposed by the special law issued to protect the Venice Lagoon, with particular reference to the mentioned 10 forbidden substances. \ud The experimental results and the numerous test-runs conducted confirmed the respect of the regulatory limits for the pollutants in the final effluent as well of the required removal rates for the different parameters. Therefore, the upgraded treatment plant was declared compliant with the approved design

Topics: MBR, micropollutants, petrochemical site, plant upgrading, Venice Lagoon
Publisher: IWA Publishing
Year: 2008
OAI identifier: oai:iris.unife.it:11392/534248
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