Abstract
Micro- and nanoplastics (MNPs) have been recognized as emerging pollutants in various water bodies/sources, especially seawater. MNPs are generated through the degradation or fragmentation of plastic debris. Plastic polymers produced for specific purposes such as microbeads, capsules, fibers, or pellets also result in MNPs contaminated wastewater. Removal of MNPs contamination from saline water and wastewater is critical to the downstream processes. This chapter presents the sources and occurrence of MNPs in saline and industrial wastewater. Different treatment technologies to remove MNPs are classified and discussed in detail. Methods like density separation, filtration, and membrane operation, already prevalent as secondary or tertiary wastewater treatment, can be implemented with adequate modification to remove MNPs from saline water. Emerging technologies like dynamic membrane, electrocoagulation, and magnetic extraction have also shown potential for MNPs recovery. Research and development toward removing MNPs from various water sources, particularly saline, discussed in this chapter, can help researchers and stack holders for adequate management of these less-discussed new class of pollutants.
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