Hemodialysis:

The most important application of dialysis process is in the artificial purification of blood using a dialysis membrane and this process is called hemodialysis. In hemodialysis, the impure blood from the patients flows across a dialysis membrane and a physiological saline solution flows along the other side of membrane. This process replaces kidney function in three principal areas, namely, removal of waste metabolites, removal of excess body water and restoration of acid-base and electrolyte balances. The waste metabolites include urea, uric acid, the end product of protein metabolism and creatinine, the end product of muscle metabolism.