Engineering and Technology Journal

Decontamination of Aqueous Nuclear Waste via Pressure-driven Membrane Application – A Short Review

Taisir K. Abbas; Khalid T. Rashid; Saad Al-Saady; Alanood A. Alsarayrehd; Alberto Figoli; Qusay F. AlSalhy

Volume 41, Issue 9 , September 2023, , Page 1152-1174

https://doi.org/10.30684/etj.2023.140193.1454

Abstract

Radioactive waste poses significant risks to human health and the environment due to the emission of gamma rays, beta particles, and alpha particles from natural or artificial radioactive ... Read More ... Radioactive waste poses significant risks to human health and the environment due to the emission of gamma rays, beta particles, and alpha particles from natural or artificial radioactive elements. This paper reviews the essential sources of radioactive waste, their potential risks to humans and the environment, their classification depending on their chemical, physical, and radiological features, and the treatment techniques utilized to prevent them from leaking into the environment. In addition, the current study focuses on using membranes exclusively and membrane technologies in the remediation of radioactive liquid wastes. The use of pressure-driven membrane technologies, such as reverse osmosis, nanofiltration, ultrafiltration, and microfiltration, is particularly emphasized. Additionally, the use of nanomaterials like titanium dioxide, zinc oxide, silica, alumina, silver oxide, zeolite, copper ferrocyanides, and carbon nanotubes embedded with membranes to improve their effectiveness and enhance their applicability decreases the risks associated with radioactive contamination via modifying membrane properties including flow rate, the result of rejecting radioactive particles dissolved or suspended in contaminated water, hydrophobic and hydrophilic membrane's ability and among other properties. Moreover, incorporating nanoparticles into reinforced membranes enhances the mechanics of nanocomposite membrane surfaces via processes like adsorption and ion exchange with various radioactive ions. Besides increasing nanocomposite membranes' performance in reducing the hazardous radionuclides effects, it modifies membrane properties, such as enhancing antibacterial capabilities, antifouling, mechanical stability, and thermal stability. The article review also discusses hybrid pressure-driven membrane processes in disposing of radionuclides generated in nuclear power plants, hospitals, research facilities, and decontamination projects to protect human health and the environment.

A Review on the Separation of Volatile Organic Compounds from Wastewater by Pervaporation Processes

Salam H. Hussein; Salah S. Ibrahim; Adel Zrelli; Alberto Figoli; Adnan Alhathal Alanezi; Qusay F. Alsalhy

Volume 41, Issue 3 , March 2023, , Page 512-528

https://doi.org/10.30684/etj.2023.138340.1386

Abstract

The pervaporation process (PV) is one of the membrane separation methods. This process is characterized by low cost, ease of installation, no chemicals added, and work at medium temperatures. ... Read More ...

Characterization of the Efficiency of Photo-Catalytic Ultrafiltation PES Membrane Modified with Tungsten Oxide in the Removal of Tinzaparin Sodium

Reham R. Abdullah; Kadhum M. Shabeeb; Aseel B. Alzubaydi; Alberto Figoli; Alessandra Criscuoli; Enrico Drioli; Qusay Alsalhy

Volume 40, Issue 12 , December 2022, , Page 1633-1641

https://doi.org/10.30684/etj.2022.134070.1219

Abstract

One of the polymeric membranes' main limitations is their susceptibility to fouling, lowering the membrane's performance with time. Therefore, incorporating nanomaterials in polymer ... Read More ...

Author = Alberto Figoli

Decontamination of Aqueous Nuclear Waste via Pressure-driven Membrane Application – A Short Review

Abstract

A Review on the Separation of Volatile Organic Compounds from Wastewater by Pervaporation Processes

Abstract

Characterization of the Efficiency of Photo-Catalytic Ultrafiltation PES Membrane Modified with Tungsten Oxide in the Removal of Tinzaparin Sodium

Abstract