Yixianyuan Water Plant is located in the southern part of Wuqing District, Tianjin, within the Tianjin Yixian Science and Industrial Park. It utilizes the Luan River basin, drawing water from the Luan River and the South-to-North Water Diversion Project. The plant covers a total area of 102.9 mu (68,616 square meters) with a total building area of 10,820 square meters. The plant is designed for a total capacity of 60,000 cubic meters per day (m³/d), constructed in two phases. The first phase, with a capacity of 30,000 m³/d, was completed around 1999, and the second phase expanded the capacity to 60,000 m³/d.
The original process of the first phase water treatment plant included: Luan River source → Regulation pond → Intake → Inlet pump station → Static mixer → Reaction tank → Inclined tube sedimentation tank → Four-valve filter → Clear water tank → Suction well → Water delivery pump station → Municipal pipeline network.
The newly constructed second phase, with a capacity of 30,000 m³/d, adopts the Dagua natural drinking water treatment technology. The entire set of process equipment occupies a small footprint of less than one thousand square meters. The construction period was short, taking only six months from design to completion. During operation, no chemical agents are added, thus no chemical sludge is produced, and there is no secondary pollution. An automated operation system is also used, saving a large amount of manpower and material resources. Currently, the system operates stably, and third-party testing shows that all 106 indicators for drinking water are qualified, with turbidity less than 0.1, significantly better water quality compared to the first phase.
Owner's evaluation: "After organizing related technical departments such as the North China Institute and our company's technical experts to conduct market research, we found that Dagua's water treatment technology not only has a short construction cycle, good water quality effect, and high automation, but also meets the standards for healthy water and direct drinking water."
