This handbook provides a comprehensive and interdisciplinary examination of environmental engineering, with a particular focus on water resources and natural control processes. It develops a clear understanding of how environmental systems function and interact, emphasising the management and protection of water resources within both natural and engineered contexts. The handbook integrates scientific principles with practical approaches, addressing the treatment, conservation, and sustainable utilisation of water in response to growing environmental challenges. It further explores the relationship between human activities and ecological balance, highlighting the importance of regulatory frameworks, environmental planning, and responsible resource management. Emphasis is placed on analytical methods, system design, and pollution control strategies that support long-term environmental sustainability. The discussion reflects contemporary environmental concerns, encouraging a balanced and informed approach to managing natural resources and mitigating environmental risks.

This handbook is intended for engineers, researchers, and advanced students seeking to strengthen their expertise in environmental systems. It supports the development of analytical skills, technical knowledge, and practical insight required for effective environmental management and sustainable engineering practices.