Human activities have significantly enhanced the discharge of emerging contaminants (ECs) into the environment, which might have detrimental impacts on human health, even at extremely low concentrations (in the range of μg/L). The conventional wastewater detection technique and remediation methods are ineffective in removing many of these persistent emerging contaminants (ECs). Traditional methods, including Atomic Absorption Spectrometry, Mass Spectrometry, Chromatography, and other analytical techniques, are employed to measure the amounts of ECs (Emerging Contaminants) of different types. However, these approaches are subject to significant constraints and drawbacks. This chapter examines several techniques for detecting EC, such as Gas/Liquid Chromatography coupled with mass spectrometry (GC/LC–MS), Enzyme-linked immunosorbent test (ELISA), Advanced Spectroscopic Method, and Biosensors. These alternative hyphenated approaches provide several advantages compared to conventional techniques, including increased sensitivity, selectivity, reduced sample volume needs, portability, repeatability, speed, cost-effectiveness, and the ability to monitor ECs in real-time. Contemporary techniques do not need intricate solid phase extraction procedures. Current chapter provides a summary of each of the alternate techniques used to identify environmentally contaminants in various samples. The sensitivity of each approach varies based on the specific EC being tested and the corresponding matrix. Some of the current challenges encountered by these alternative methods in monitoring ECs. Further different conventional and modern remediation techniques have also been discussed.