The scarcity of freshwater is one the major challenges to civilized community around World. So, various engineered processes have been developed for remediation this problem such as osmotic pressure-driven (OPDPs). OPDPs includes forward osmosis and pressure retarded osmosis, which gained enormous attention becoming a flexible membrane-based technology desalination wastewater treatment. most si...

In this report, experimental investigation of waste water treatment by reverse osmosis to enable its reuse in cooling tower is presented. A polyamide spiral wound RO membrane followed by three filters as RO pretreatment (two activated carbon and one cartridge filter) and samples of Tehran refinery treated waste water have been used. The effect of operating conditions such as pressure differ...

Osmosis is fundamental to many processes, such as in the function of biological cells and in industrial desalination to obtain clean drinking water. The choice of solute in industrial applications of osmosis is highly important in maximising efficiency and minimising costs. The macro-scale process of osmosis originates from the nano-scale properties of the solvent, and therefore an understandin...

Pada saat diatas kapal penyediaan air tawar sangat besar permesin bantu kapal. umumnya kebutuhan dipenuhi oleh supply dari darat, dan tentunya memerlukan biaya yang cukup untuk bunker waktu lama Kapal-kapal modern biasanya dilengkapi dengan pesawat atau alat dapat merubah laut menjadi tawar, inilah disebut Reverse Osmosis. Tujuan penelitian ini dibuat menganalisis permasalahan terjadi mencari t...

In the present study, oxytetracycline (OTC) was selected as a medical contaminant with an organic structure to increase efficiency and feasibility of comparison other research studies. Therefore, removal OTC from medicinal effluents using different methods; namely, activated carbon, bentonite adsorption, iron(III) chloride coagulation, membrane filtration reverse osmosis (RO), investigated. Res...

The presently used hollow fiber membrane modules consist of a bundle of fibers in a cylindrical polymer or metal shell parallel to the shell axis. The feed solution flows either through the lumen or at the outside parallel to the fibers. This paper compares the performance of these modules with a new transverse flow module where the hollow fibers are positioned perpendicularly to the flow direc...