我国是一个水资漂贫乏的国民，人均水资源仅为世界平均水平的四分之一。目前我国工业取水量占总取水最的２０％，而工业废水排放量占全国废水排放量的４９％。工业用水效率低、增长快、污染重，与水资源相对匮乏的状况极不相适应，已成为制约国家经济持续发展的瓶颈，因此，加强工业节水是一项十分重要而又迫切的任务。 Our country is a poor and poorly populated country with a per capita water resource of only one quarter of the world average. At present, China’s industrial water withdrawal accounts for 20% of the total water intake, while industrial wastewater discharge accounts for 49% of the national wastewater discharge. Industrial water has low efficiency, rapid growth, heavy pollution and incompatible with the relative lack of water resources. It has become a bottleneck restricting the sustainable development of the national economy. Therefore, it is a very important and urgent task to strengthen industrial water conservation.