Investigation Optimum method for hospital wastewater treatment

One of the most important source of pollution with water resource is the hospital wastes which contains many pathogenic factors, thus the necessity of sanitary collection, treatment and reuse of them is vital because of water shortage in recent decades, in which it requires the wastewater treatment plant establishing. For construction of such a treatment plant the quality and quantity parameters are needed that the most important of quantity parameter is flow rate, which then for determining of the way of treatment the quality parameter should be detected. Since, many hospitals are not including wastewater treatment plant or if they are, the beneficence of their performance isn’t satisfactory. This research tries to investigate the pollution of special and upper special hospital in the biological oxidation method. The pilot was established in 2008 and after 2 months performance continuously, the treatment condition was properly and complies with environmental standard range in which in the late August and September the sampling was started. It is mentionable that at the end of every month the three sampling were applied simultaneously and analyzed in order that the accuracy and veracity of the experiment become clarified. The results show that all of the parameters are removable in the biological oxidation method .This procedure is usable for removal of physical, chemical, microbial and heavy metals parameters and efficiency of oxidation biological removal method for the main hospital parameters was more than 90%.

hospital wastewater, biological oxidation, total coli form, fecal coli form, BOD5،COD