چكيده لاتين :
Nowadays, water resources shortage is one of the most important issues for environmental engineers and
managers as well as its conservation due to population growth and ever-increasing water demands.
Besides, hospital wastewater has the same quality as municipal wastewater, but may also potentially
contain various hazardous components. In this paper, physical and chemical specifications of produced
wastewater in hospitals of Iran were investigated experiments. Results were compared with the effluent
parameters of wastewater standards of Iranian Department of the Environment. 70 governmental hospitals
from different provinces of Iran were selected by purposive (non-random) sampling method. For data
analysis, SPSS and EXCEL softwares were applied. The findings of the study showed that 52% of the
surveyed hospitals were not equipped and 48% were equipped with wastewater treatment systems. The
mean of Biochemical Oxygen Demand, Chemical Oxygen Demand and Total Suspended Solids of the
effluent of wastewater treatment systems were reported as 113, 188 and 99 mg/L respectively.
Comparison of the indicators between effluents of wastewater treatment systems and the standards of
Departments of the Environment, showed the inefficiency in these systems and it was concluded that
despite the recent improvements in hospital wastewater treatment systems, they should be upgraded based
on the remarks in this paper.
