Membrane purification in radioactive waste management: a short review

Advances in Membrane Distillation for Water Desalination and Purification Applications

“…Some limitations have been reported on the use of MD in radioactive waste treatment [184]. They are mostly related to the type of membrane.…”

“…Even though MD is a suitable option for low and intermediate level liquid radioactive waste purification, its application to high level liquid waste is limited due to radiation instability of hydrophobic polymer based membranes such as PTFE, PVDF, and PP. High level radioactive wastes are strongly acidic and these membranes are chemically unstable in the waste [184]. Zakrzewska et al [180] suggested that the proper selection of membranes depends on the chemical and radiochemical composition and total salinity of the effluent to be treated.…”

“…Hybrid RO-MD systems may also be applicable in the nuclear industry to improve both the efficiency of the RO process and the decontamination factor. The decontamination factor is calculated as the ratio of activity concentration of feed to activity concentration of permeates [184]. RO systems supplemented with MD units can help recover large quantities of high enthalpy streams and waste heat [180].…”

Review in the TiO2 Photocatalytic Degradation of Organic Matter in Radioactive Waste Water

“…And the management of radioactive organic wastewater not only needs to consider it is radioactive and must also consider the chemical toxicity [5]. Radioactive organic waste liquid including oil, waste solvents, extracting agent, liquid scintillation and other mixed liquid [6]. Radioactive waste oil circuit system of mechanical components including nuclear power plants of lubricating oil, vacuum pump oil, the waste liquid generally contain a small amount of beta, gamma radioactive nuclide.…”

Accumulation of Co(II) and Eu(III) by the mycelia of Aspergillus niger isolated from radionuclide-contaminated soils

“…Conventional technologies have been developed for the removal of radionuclides from the environment. For example, coagulation-flocculation [5], precipitation [6,7], adsorption [8][9][10], ion exchange [11], and membrane filtration [12] have been gradually employed for the treatment of radionuclides contaminated wastewaters. Although these methods have been widely used, they have many limitations, such as complex measurement and operation procedures, high cost, and easily caused secondary pollution [13].…”