Membrane modification

M odified and unmodified membrane samples w ere taken from different pilot-scale membrane plants after a sufficient operation period. One of t he plants is installed at a municipal drinking water t reatment plant, the second, a MBR, is located at a municipal wastewater treatment plant. The membrane

Asymmetric cellulose diacetate (CA) based membranes were prepared according to the phase inversion process from acetone/formamide (2:1 wt./wt.) casting solutions. The polymer concentration was varied from 15 to 25 wt.% in order to produce membranes with pore size distributions ranging from low molec

Flat sheet samples of SWRO membranes of the SWC2 type (Hydranautics) were surface modified with hydrophilic polymers formed by redox initiated grafting with vinyl monomers. These were mounted on specially designed stubs along with unmodified membranes and tested at the Mekorot seawater RO pilot plan