Fabrication, Modification, and Mechanism of Nanofiltration Membranes for the Removal of Heavy Metal Ions from Wastewater

Author:

Nompumelelo Kubheka S M1,Edward Nxumalo N1,Muthumuni Managa1,Moloko Matlala2,Makwena Moloto J1ORCID

Affiliation:

1. Institute for Nanotechnology and Water Sustainability College for Science Engineering and Technology University of South Africa Florida park Roodeport 1709 South Africa

2. Department of Water and Sanitation Emanzini Building 178 Francis Baard St, Pretoria Central Pretoria 0001 South Africa.

Abstract

AbstractHeavy metals present in wastewater and water scarcity are a global challenge worldwide. The elimination of heavy metals in wastewater is necessary to protect the ecosystem and human health. Heavy metals such as lead, cadmium, and mercury are among many other toxic heavy metals present in wastewater. There are several conventional methods that have been implemented to mitigate heavy metal pollution in wastewater and according to literature, it has been evident that the nanofiltration (NF) separation technique requires minimal pressure to obtain high rejections of multivalent inorganic salts compared to conventional methods. NF separation process is highly competitive in terms of selectivity and cost‐benefit. The growing research trend of NF fabrication and modification collates that the technology has been applied in various industrial and municipality wastewater treatment facilities. The review paper aims to illustrate the health impacts of heavy metal exposure, the cons of conventional methods and the utilization of NF membranes in wastewater treatment, the overall factors affecting membrane performance, and future aspects of the separation techniques.

Publisher

Wiley

Subject

General Chemistry

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