A Brief Review of Treatment Methods for Certain Emerging Contaminants in Domestic and Industrial Effluents

Over the past few decades, there has been a significant surge in industrial activity driven by the ever-increasing demands of a growing global population. This exponential growth has resulted in the synthesis and subsequent discharge of a wide range of novel and complex emerging contaminants into the environment. These contaminants pose a significant threat due to their persistent and recalcitrant nature, making them resistant to degradation and removal by traditional wastewater treatment methods. The presence of these emerging contaminants in receiving waters serves as a clear indication of their ability to escape the confines of conventional treatment plants. This escape can be attributed to their unique and complex chemical compositions, which challenge the efficacy of existing treatment processes. Consequently, these contaminants have the potential to accumulate in the environment, disrupting ecosystems and posing risks to human health. Addressing this complex challenge requires the development of advanced treatment technologies capable of effectively removing these emerging contaminants from wastewater streams. Extensive research and innovation have led to the emergence of various promising approaches, including advanced oxidation processes, membrane filtration, and activated carbon adsorption, among others. These technologies aim to target and degrade the recalcitrant pollutants, ensuring their removal from wastewater before it is discharged into the environment. Understanding the nature and behavior of these emerging contaminants is crucial in designing tailored treatment strategies. Researchers and scientists have made significant efforts to identify and analyze specific emerging contaminants, such as pharmaceuticals, personal care products, endocrine disruptors, and microplastics, among others. By studying their properties, sources, and fate in the environment, it becomes possible to develop treatment methods that effectively mitigate their adverse effects. This article provides an overview of selected emerging contaminants and explores the various advanced wastewater treatment technologies that have been developed for their removal. By addressing this critical issue, we can safeguard human and environmental health, protect our water resources, and pave the way for a more sustainable and resilient future.