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Chemical Engineering Department, Bharati Vidyapeeth University, College of Engineering, PUNE – 411043 (M.S.) INDIA


In the present work, degradation of reactive orange 4 dye (RO4) has been investigated using hydrodynamic cavitation (HC) reactor. During the experiments carried out that time, these conditions or parameters are followed. The different concentration effects are constant prime operating parameters such as pressure and solution pH at 5 bar and 2, respectively. The degradation of RO4 has obtained higher at concentration of 40 ppm.

Key words: Reactive orange 4, Hybrid techniques, Hydrodynamic cavitation, INTRODUCTION

Synthetic dyes are present in all spheres of our everyday life and its application is consistently growing1. The dye pollutants from the textile industry are a most important of environment pollution. These effluents are toxic and mostly non biodegradable. It is often more important than other colorless organic substances2-5. Their removal from water is thus ecologically necessary to offer a cleaner environment as a requirement for human health and has attracted the attention of environmentalists, technologists and entrepreneurs. A variety of physical, chemical and biological methods are presently available for the treatment of wastewater discharged from various industries. These effluents contain large amounts of organic compounds such as textile dyes, aromatic compounds, chlorinated hydrocarbons, and phenolic compounds. The waste water containing colored solution is the source of aesthetic pollution, eutrophication, and perturbation in aquatic life due to organic nature and toxicity. Many types of dyes mostly used in textile and paper industries. Around 50-70% dyes are of azo class dyes6,7. The industries involving production and application of dyes in the waste water, poses the major threat to the surrounding ecosystems due to health hazards ________________________________________

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Int. J. Chem. Sci.: 11(3), 2013, 1314-1320 ISSN 0972-768X

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