作者: Shuaifei Zhao , Linda Zou
DOI: 10.1016/J.MEMSCI.2011.06.021
关键词:
摘要: Abstract Recently forward osmosis (FO) has attracted growing attention on many potential applications such as wastewater treatment, desalination and power generation. FO performance is primarily limited by the presence of internal concentration polarization (ICP), which significantly reduces permeate flux. This study explores relationship between physicochemical properties solution against membrane support layer ICP incorporating constrictivity. Four solutions with different diffusivities, ion/molecule sizes viscosities were systematically investigated using a bench-scale system. It found that in strongly dependent facing layer. When lower aqueous diffusivity but larger size higher viscosity, The phenomenon will be more severe, resulting water identical diffusion direction feed solute flux may reduce effective when layer, high concentrative ICP. These findings have significant implications for development new draw solutes, pretreatment selection orientation.