Developing and retrofitting an electrolysis plant at the nuclear power station in Egypt: from research studies to the production implementation

Summary

The paper dwells upon the generic process of development and implementation of an electrolysis plant for the production of low-concentration sodium hypochlorite by direct electrolysis of Mediterranean Sea water for biocidal treatment of the cooling circuit of the El Dabaa NPS in Egypt. The key stages of the project are considered: from research studies and design to industrial production. The conducted studies demonstrated the practical applicability of the technology for the purification of the circulating water at the nuclear power station. Retrofitting the plant will provide for an environmentally safe and cost-effective biocidal treatment system that meets the current requirements of the nuclear power engineering. The implementation of the project provides for improving the operational reliability of the power units of the El Dabaa NPS in compliance all the environmental safety standards. The parameters of sodium hypochlorite production, technical solutions focused on increasing the efficiency and reliability of the equipment are given. The paper is of practical interest to water specialists in the field of nuclear power engineering, chemical technologies and design of power equipment.

Key words

disinfection , sodium hypochlorite , sea water electrolysis , biocidal water treatment , NPS