IAEA-CN-115-36 · Evaluation on ecological stability and biodegradation of dyeing wastewater pre-treated by electron beam

M.J. Lee¹, C.K. Park¹, D.H.Yoo¹, J.K. Lee¹, B.J. Lee¹, B.S Han², Y.R. Kim², S.J. Ahn³, J.S. Choi³

¹Korea Atomic Energy Research Institute
²EB-Tech. Co. Ltd
³Dye-Tech. Korea

Abstract: Biological treatment of dying wastewater irradiated by electron beam has been performed in order to evaluate the biodegradation and the toxicity of effluent on ecological stability. Two samples, which one is dyeing wastewater and other is unirradiated dying wastewater were compared, respectively. Electron accelerator of 1 MeV, 40 kW with the dose of 1.0 kGy was increased. The effectiveness of irradiation was remarkable when shorter HRT was applied to biological treatment process. The activity of micro organisms by irradiation was no more active comparing with the biological treatment process without irradiation. The toxicity on the Daphnia magna of effluent was decreased from 2.49 to 2.16 when a dyeing wastewater was pre-treated by electron beam irradiation.

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