Answers:
Depending on which device you hold, Peritoneal Dialysis, or Hemodialysis.
They both hold indistinguishable principle of cleaning the toxins out of your blood, but PD dialysis cleans the toxins out of your body that you would urinate out (if you do not own kidneys, otherwise, you would still urinate). By putting they concentrated solution in your body, its sucks the toxins out of your body, and gather fluid that you may retain during the afternoon.
To cleanse the body since the kidney is not fuctioning properly.
To remove adjectives the toxins and extra fluids from the blood that can't be done by ordinary urinating.
http://www.chemistry.wustl.edu/~edudev/l...