摘要：Various contaminants in the water which are used for dialysis may be harmful to patients, therefore, the standard compliance is vital for dialysis water. The aim of this study was the analysis of the effect of hemodialysis system in pollutants removal from Razi hospital hemodialysis instruments. This cross-sectional descriptive research studied the microbial water quality of hemodialysis instruments in Razi hospital of Ahwaz, Iran. Experiments were done according to the book of standard methods from hemodialysis instruments during 2016. Finally, the relationship between results at different months and stations was done, using SPSS and descriptive statistics. Results shown that the average of microbial parameters and chemical quality in water influent hemodialysis instruments were pH =7.595, SO4=3.5 mg/l, Na=70 mg/l, C=22.95 mg/l, Mg=51.05 mg/l and HPC=1 Cfu/ml. Also, total col-iform and fecal coliform in water influent indicated that the reverse osmosis process was good. Razi hospital hemodialysis system effluent was mitted Iran environmental standards.
