RO membranes

While removal efficiency of most components in water by RO membranes is very satisfactory, the removal of some trace elements such as boron by RO membranes, especially those with long service life, is relatively low. The interplay between pH and ionic strength is believed to be the key to understand

Biofouling due to microbial growth on the RO membrane adds significant osmotic pressure and causes frequent chemical cleaning which reduces the life of RO membrane. Biocides such as chlorine, ozone, and UV have been used to control microbial growth correlated to the biological fouling of the RO memb

This paper describes the characterization and evaluation of various RO/NF membranes for the treatment of seasonally brackish surface water with high organic contents (TOC ≈ mg/L). Twenty commercially available 21 RO and NF membranes were initially evaluated by performing controlled bench-scale flat-

With the aim of obtaining RO membranes for brackish water desalination from purified celluloses (cotton linters and bleached bagasse pulp), two reactions (heterogeneous and homogeneous**) were applied for the synthesis of cellulose acetate (CA). The efficiency of the membranes was measured and compa

Improvements achieved by the new FILMTEC products as well as results of field experiences made with FILMTEC seawater and brackish water reverse osmosis (RO) membranes are presented as per their status as of February 2000, along with the analysis of the relationship between the achieved performance a