The influencing factors and modification of small organic molecule/inorganic salt membrane separation
Under the background of carbon peaking and carbon neutrality,sewage treatment and resource utilization technology will be inevitably move towards the direction of"green and low-carbon".The separation of organic small molecules and inorganic salts have become one of the current constraints on the resource utilization of wastewater.Although membrane technology can be employed for this purpose,the factors influencing the separation of organic small molecules and inorganic salts have not been definitively determined.To accelerate the progress of wastewater resource utilization,this paper summarized the main factors that influence membrane separation of organic small molecules and inorganic salts,and introduced strategies that can improve membrane performance.The pore size of the membrane and the electronegativity of its surface are the key factors in the separation of organic small molecules and inorganic salts using membrane technologies.Furthermore,loose nanofiltration membranes with high hydrophilicity and positive charge represent the future direction in the development of small organic molecule/inorganic salt separation membranes.
small organic moleculeinorganic saltmembrane separationinfluencing factorsmodified