Removal: A Case Study on a Water Treatment Plant

In this work, the effects of ozonation stage on natural organic matter (in particular total organic carbon (TOC)) removal, were investigated for one year operation of Hamedan Shahid Beheshti water treatment plant. Ozonation which is the first disinfection stage in this plant plays a significant role in removing organic carbon from the water such that roughly 60 % of it is converted into volatile compounds, which are directly stripped from the water. Analysis of carbon contents, residual ozone, and operating parameters such as water flow rate, pH, and alkalinity indicated that the ability of this stage at removing organic carbon is even more than that of the flocculator (pulsator) stage. Overall, it was identified that the organic carbon removal is very well within the range specified by the standards.