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The construction of urban water system is important for safeguarding urban ecological conditions and beautifying residential environments. This paper discusses the concept of introducing photovoltaic water lifting to supplement urban water system by using reclaimed water as a resource during dry seasons. The current conditions of the Xiang’an water system being planned in Xiamen and ecological water supplement requirement are analyzed and used to demonstrate this concept. The Xiang’an sewage treatment plant within the drainage basin of the water system should be upgraded and reconstructed to supply reclaimed water that complies with IV water quality standard of surface water following treatment. Analysis of scenarios that requires water supplement in the Xiang’an water system is conducted based on conditions in the year 2014, as it recorded the highest number of non-rainy days in the past ten years. Additionally, the structure of photovoltaic pump is provided. This concept will serve as a useful reference in urban clean production and ecological remedy besides highlighting a new example of applied energy.

Photovoltaic Water Lifting and Ecological Water Supplement for Xiang’an Water System in Xiamen City