Roisin Reidy 01 Dec 2013 More in Water & Wastewater November’s top 3 business news stories - Siemens, Filtration Group, Porex, Clarcor and GE News 1. US private equity firm to pay €640mn for Siemens Water Technologies2. Filtration Group to acquire Porex3. Clarcor to acquire GE’s air filtration business
