This book chapter explores the innovative utilization of citrus waste through a novel process known as valorization, aiming to transform agricultural by-products into valuable and sustainable materials. Citrus waste, a significant by-product of the fruit processing industry, poses environmental challenges due to its abundant production and disposal issues. The chapter delves into the principles of valorization, a cutting-edge technique that harnesses the potential of citrus waste to synthesize value-added products. It begins by providing an overview of the current challenges associated with citrus waste disposal and its environmental impact. It then introduces the concept of valorization, highlighting its underlying principles and mechanisms. Valorization, a process involving the controlled thermal decomposition of organic matter, emerges as a promising solution to convert citrus waste into valuable intermediates. Furthermore, the chapter explores the range of value-added products that can be synthesized through valorization, including biofuels, organic acids, and specialty chemicals. Additionally, the environmental sustainability and economic viability of valorization as a citrus waste valorization strategy are addressed. The potential socio-economic benefits for agricultural communities and the overall reduction in environmental impact add depth to the exploration of this transformative technology. In conclusion, this chapter provides a comprehensive overview of the valorization process for citrus waste valorization, offering insights into its potential as a sustainable and economically viable approach. By transforming a significant environmental challenge into an opportunity for innovation and resource optimization, the chapter contributes to the evolving landscape of green and circular economies in the agriculture and food processing industries.