Background and aims
Despite increasing concerns about hospital waste management, scant
attention has been paid to hospitals and medical research laboratories. These effluents contain
pathogenic microorganisms, incomplete metabolized Pharmaceutical, radioactive elements and
other toxic chemicals. The purpose of present work is evaluation of hospitals wastewater treatment
plants performance of Iran University of medical science, analysis and comparison of the
pollutants' removal and sludge quality with the national standards (Iran EPA).
Methods
in this study that was conducted over a period of 6 months, 4 hospitals were selected out of hospitals of Iran University of medical science. Once in each month were sampled and Totally 72 Samples were obtained (including 6 samples from treatment plant input, treatment plant effluent and 6 samples from return activated sludge), respectively.
Results
The results showed that Shahid Hasheminejad hospital using integrated fixed activated
sludge had the highest efficiency in removal of COD, BOD5 and TSS and Sludge quality meet the B class of EPAstandard.
Conclusion
Shahid Hasheminejad hospital wastewater treatment plant had the best performance, because of its treatment system and capability of treating variable organic and hydraulic loading and simple operation and maintenance.
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