Green Chemistry Approaches in Industrial Processes: A Systematic Review

The increasing environmental and health concerns associated with conventional industrial practices have accelerated the adoption of green chemistry principles as a sustainable alternative. This systematic review examines the application of green chemistry approaches in industrial processes, with the aim of evaluating their effectiveness in reducing environmental impact, enhancing resource efficiency, and promoting safer production methods. Relevant peer-reviewed articles published within the last two decades were systematically selected using established inclusion and exclusion criteria, focusing on key sectors such as pharmaceuticals, petrochemicals, agriculture, and materials manufacturing. The review highlights major green chemistry strategies, including the use of renewable feedstocks, solvent-free and catalyzed reactions, energy-efficient synthesis, waste minimization, and process intensification. Findings indicate that industries implementing these approaches have achieved significant reductions in hazardous waste generation, energy consumption, and greenhouse gas emissions, while maintaining or improving product yield and economic viability. Additionally, advancements in biocatalysis, nanotechnology, and process optimization have further enhanced the scalability and industrial applicability of green chemistry innovations. Despite these benefits, challenges such as high initial implementation costs, technological limitations, and regulatory barriers continue to hinder widespread adoption. The study concludes that integrating green chemistry principles into industrial processes is essential for achieving sustainable development goals, and it recommends increased investment in research, policy support, and industry–academia collaboration to accelerate the transition toward environmentally benign manufacturing systems.