Purified water is water that has undergone special treatment to remove almost all impurities (including minerals, microorganisms, ions, and organic substances). It has extremely high purity, contains no additives, and typically has a flat taste. Purified water is usually obtained through methods such as distillation, reverse osmosis, or deionization. The production activities of this product include processes such as water coagulation, clarification, and ion exchange, covering the operation of water treatment equipment, energy consumption, and wastewater discharge. This dataset is compiled by combining data from multiple sources.