Keywords: membrane characterisation, membrane distillation, nuclear desalination, radioactive waste treatment, water management, wastewater management, nuclear power plants, liquid waste, process parameters
Direct contact membrane distillation for nuclear desalination, Part II: experiments with radioactive solutions
This paper proposes the application of Direct Contact Membrane Distillation (DCMD) coupled with a nuclear reactor for water desalination and for low- and medium-level radioactive liquid waste concentration. Both laboratory and pilot plant experiments were carried out using the membranes reviewed in Part I of this paper. The effects of process parameters on the productivity and quality of DCMD systems are discussed. Distilled water, non-active solutions of inorganic salts and solutions with admixtures of radionuclides and simulated and real radioactive waste samples were used as feed solutions. Employing DCMD for liquid low- and medium-level radioactive waste processing is an alternative to traditional methods used in nuclear technology. The combination of radioactive waste processing and water desalination creates an economical integrated system for water and wastewater management in nuclear power plants.