This book focuses on core challenges in the water sector in China, Cambodia, and globally. It addresses China’s need for energy saving and cost reduction in wastewater treatment, as well as Cambodia’s challenge of ensuring stable water supply during the rainy season. Centered on transferring advanced technologies and bridging the gap between technology and application, it aims to cultivate local water professionals with a global perspective, drive the transformation of the water industry from passive treatment to proactive optimization, and lay the foundation for building a resilient water system.

The textbook adopts a four-stage progressive framework: Fundamental Theories – Core Technologies – Engineering Practices – Cutting-edge Trends — which systematically presents: an analysis of Cambodia’s current water resources situation alongside relevant regulations from various countries; a detailed explanation of core water treatment technologies tailored to regional needs; a step-by-step walkthrough of engineering practices in typical water supply and wastewater treatment scenarios; and an exploration of sustainable development pathways and future trends in the industry.