The amount of micro/nanoplastic (MNP) contamination in the environment has grown in recent years. Due to their detrimental effects on both the environment and human health, MNPs have become major research issues. Electrospinning has gained a lot of interest because it offers exciting possibilities for the creation of nanocomposite membranes with customized porosity, scalable biomolecule inclusion, and changeable pore size. The MNPs in wastewater may be effectively removed by conventional wastewater treatment facilities (WWTPs). In recent decades, there has been a lot of emphasis focused on the decrease of MNPs from WWTPs. The massive quantities of wastewater that WWTPs continuously emit into water bodies are thought to be one of the main ways in which MNPs have been introduced to the environment, even with their effective removal. The current treatment methods used in WWTPs to remove MNPs in order to better improve the current designs are described. Furthermore, shown and explored is the efficacy of sophisticated treatment procedures in removing MNPs, including advanced oxidation processes, membrane machinery, nanotechnology, and electrocoagulation. Still, additional detailed investigation is required to address any potential hazardous bacterial biotransformation of MNPs through biological cure stages in WWTPs. This chapter is anticipated to provide useful data in building an effective strategy to regulate and minimize environmental contamination from MNPs since a fundamental understanding of removal processes in WWTPs might lessen the environmentally friendly prevalence of MNPs.