Fuente: Asqueous Extraction Byproducts Water pollution is a pressing issue in the modern era, demanding the development of water treatment methods that are simple, environmentally friendly, and energy-efficient. Adsorption techniques utilizing agricultural wastes have emerged as a promising and cost-effective approach to addressing the challenges of wastewater purification. Various agroindustrial byproducts, including coconut shells, bagasse, wheat husk, paddy straw, and tea waste, have demonstrated high efficiency in their natural or modified forms. Research has shown that these materials can effectively remove pollutants such as heavy metals, industrial dyes, pharmaceutical residues, and organic contaminants. Agrowaste-based adsorbents offer several advantages, including widespread availability, renewability, and excellent adsorption capabilities, making them a sustainable alternative to conventional methods. This chapter provides a comprehensive review of significant studies on the valorization of agroindustrial byproducts for wastewater remediation. It delves into the adsorption efficiency of agrowaste-derived materials like activated carbons and hydrogels in removing toxic substances. Furthermore, it examines chemical modifications of these adsorbents and their enhanced ability to target a range of contaminants. By converting agricultural waste into valuable resources, this approach not only addresses pollution control but also supports waste management and economic sustainability. The insights presented in this chapter emphasize the transformative potential of agrowaste-derived adsorbents in creating eco-friendly solutions for water purification. By showcasing their efficacy and versatility, the chapter aims to inspire further innovations in developing advanced adsorbing materials from agroindustrial waste. This effort highlights the critical role of agricultural byproducts in tackling the global challenge of water pollution, paving the way for cleaner water systems and a more sustainable future.