Core Insights - The Nansha Wastewater Treatment Plant and Yuwotou Wastewater Treatment Plant projects have officially commenced, marking a significant step towards ecological civilization in the Guangdong-Hong Kong-Macao Greater Bay Area [1][2][9] - The total investment for these two projects is approximately 7.5 billion yuan, utilizing a new mechanism for public infrastructure and utility concessions [1][8] Project Details - The Nansha Wastewater Treatment Plant will expand its capacity from the current 100,000 cubic meters per day to a planned total of 400,000 cubic meters per day, serving a population of about 380,000 [4][9] - The Yuwotou Wastewater Treatment Plant will have an initial capacity of 30,000 cubic meters per day, increasing to 50,000 cubic meters per day in the second phase, covering an area of 43.61 square kilometers and serving approximately 37,600 residents [6][9] Technological and Environmental Innovations - Both projects will incorporate advanced technologies for energy and resource recovery, including sludge energy recovery, reclaimed water reuse, and photovoltaic power generation [7] - The Nansha project aims to integrate a "rural style, Lingnan charm" design concept, combining modern green building techniques with cultural features [4][5] Collaborative Framework - The projects represent the first collaboration in the environmental sector among Guangdong, Hong Kong, and Macao, aiming to establish a cross-border environmental standard system [8][9] - The initiative will create a platform for ecological environmental protection cooperation, integrating technology, standards, industry, finance, and talent [8][9]