Full papers Full papers submitted are currently under the review process. The dedicated journals (WST and DWT) will notify corresponding authors on the publication process. Anticipated publication is early autumn 2010. Trondheim, 11 July, 2010

Dear Friends and Colleagues,

Welcome to the 9^th conference in the series Membranes in the Production of Drinking and Industrial Water, MDIW 2010 in Trondheim Norway! It is a great pleasure for me to welcome the membrane science and technology community to a mid-summer meeting close to the Arctic Circle. In the light summer nights I hope this may be an opportunity to exchange news and developments in membrane technology, meet fiends and colleagues and be a good setting to make new contacts and acquaintances.

MDIW 2010 is the continuation of meetings, initiated by Prof. Jan Schippers, head of the membrane committee of IWSA joined by EDS, and has been hosted by EDS, IWA, AWWA and JWA together with local organizations to address the most recent developments in membrane technology. MDIW 2010 Trondheim aims to follow and promote the tradition set by the series of events marked by 1995 - Paris, Vivendi; 1997 - L’Aquila, EDS; 1998 - Amsterdam, IWSA; 2000 - Paris, Ondeo; 2002 - Mulheim, IWW; 2004 - L’Aquila, EDS; 2007 - Harrogate, Cranfield; and 2008 - Toulouse, INSA. Themes covered in the conference series include the treatment of groundwater, river, lake, brackish and seawater sources as well as filter backwash water, industrial and domestic wastewaters with membrane processes. Membrane processes covered have included reverse osmosis, nanofiltration, ultrafiltration, microfiltration, electrodialysis, and hybrid membrane processes, and combinations of membrane technologies to produce high quality water, i.e. ultrapure water, boiler feed water and to achieve zero liquid discharge.