Research Article
Sayyed Hussaina, Shahid Shaikh
Abstract
Active Pharmaceutical Intermediates from waste water streams of API companies are emerging contaminants in the aquatic environment, because of their adverse effect on aquatic life and humans. These contaminants are high in COD and difficult to treat biologically. In this study, advanced oxidation processes (AOPs) utilizing H2O2/Fe+2, Fenton reactions were investigated in lab-scale experiments for the COD degradation of different waste water streams of Active Pharmaceutical Intermediates -ISMN (Isosorbide 5- Mononitrate) . The experimental results showed that the Fenton process using H2O2/Fe+2 was the most effective Pre treatment process for waste water streams before Activated sludge process. With Fenton processes, COD Reduction of wastewater can be achieved successfully. It is suggested that Fenton processes are viable techniques for the degradation of Active Pharmaceutical Intermediates- ISMN (Isosorbide 5- Mononitrate) waste water stream with relatively low toxicity of the by-products in the effluent which can be easily biodegradable in the activated sludge process, and other less degraded streams with high total dissolved solids can be taken to multiple effect evaporator or Reverse osmosis.