| IWA Publishing Journals | | | Subscriptions | | | Authors | | | Users | | | Librarians | | | FAQs |
 |
Water Science & Technology Vol 48 No 1 pp 179–184 © IWA Publishing 2003 A new phosphate-selective sorbent for the Rem Nut(r) process. Laboratory investigation and field experience at a medium size wastewater treatment plantD. Petruzzelli*, L. De Florio**, A. Dell'Erba***, L. Liberti****, M. Notarnicola***** and A.K. Sengupta*******Department of Civil and Environmental Engineering, II Faculty of Engineering, The Polytechnic University of Bari, 8, Viale del Turismo, 74100 Taranto, Italy ABSTRACT P-control technologies for municipal wastewater are essentially based on "destructive" methods, that lead to formation of concentrated solid-phases (sludge), usually disposed-off in controlled landfills. Ion exchange, as a "non-destructive" technology, allows for selective removal and simultaneous recovery of pollutants, which can be recycled to the same and/or related productive lines. In this context, the REM NUT® process removes nutrient species (HPO4=, NH4+, K+) present in biologically oxidised municipal effluents and recovers them in the form of struvites (MgNH4PO4; MgKPO4), premium quality slow release fertilisers. The main limitation to the extensive application of this ion exchange based process is the non-availability of selective exchangers for specific removal of nutrient species. This paper illustrates laboratory investigation and pilot scale development of a so-called "P-driven" modified REM NUT scheme based on a new phosphate-selective sorbent developed at Lehigh University, PA, USA. PAY-PER-VIEW: Buy this article for £23.5 (IWA MEMBER PRICE: £17.63) - All prices include VAT |
|
 |
