Forward osmosis (FO) as emerging technology for water treatment was reported to exhibit higher solute rejections compared reverse (RO). In this work, the rejection of two uncharged organic compounds (nicotinamide, caffeine) were investigated first time in low-pressure (LPRO) mode and FO under similar process conditions utilizing same hollow fiber forward membrane modules. consistently showed th...

Wastewater produced by the crew members on a long-term space mission needs to be recovered as potable water. Reverse osmosis (RO) has long been in use as a physical membrane separation technology for wastewater treatment. However, membrane fouling and concentration polarization have limited the efficiency for high recovery reverse osmosis systems. An advanced high pressure rotating RO device wa...

We compared the rejection behaviours of three hydrophobic trace organic contaminants, bisphenol A, triclosan and diclofenac, in forward osmosis (FO) and reverse osmosis (RO). Using erythritol, xylose and glucose as inert reference organic solutes and the membrane pore transport model, the mean effective pore size of a commercial cellulose-based FO membrane was estimated to be 0.74 nm. When NaCl...

Abstract In this work, pilot-scale nanofiltration was used to obtain aqueous solutions rich in hydroxytyrosol and tyrosol from olive oil by-products. A large-scale simple process involving mill standard machinery (blender decanter) for the pomace pre-treatment with water. The extract then directly fed a unit concentrated by reverse osmosis. Final concentration factors ranged between 7 9 4 tyros...

The potential for concentrated fertilizer to drive water treatment, nutrient recovery, and/or power generation has received increased attention. Recently the concept of fertilizer-driven pressure retarded osmosis (or “Green PRO”) was introduced literature and experimentally validated. limits from however have not yet been established, therefore this energy source supply meaningful farm loads is...