Water is the source of life. In the 2016 government work report, it was pointed out that we should focus on water pollution control, push forward the construction and renovation of urban sewage treatment facilities in an all-round way, strengthen the agricultural non-point source pollution and the integrated management of water environment in the basin, intensify efforts to control industrial pollution sources, and strengthen environmental protection inspectors. How to build a pure, healthy and sustainable aquatic ecosystem in recent years has also become a topic of concern to the people in the past two sessions, and how to ensure the safety of drinking water has also become one of the most important issues for Chinese people. Tightening policy tightened According to the "State of the Environment Bulletin" (Ministry of Environmental Protection) 2013-2015, there are records of unexpected pollution incidents in water bodies and drinking water sources every year. In 2016, drinking water pollution incidents are also frequently reported, According to the statistics of the media, in 2016, the water quality of 1333 drinking water sources in the country was disclosed. Of the total, 98 exceeded the water quality standards, accounting for 7.35% of the total. The water security situation is facing serious challenges. In response, our government attaches great importance to the protection of water resources and drinking water pollution control issues. The Measures for the Administration of Sanitary Supervision of Domestic Drinking Water, promulgated in 1996, were revised twice in 2010 and 2016 respectively. China's current "drinking water health standards" (GB5749-2006) since July 1, 2007 come into operation, including a total of 106 conventional and unconventional indicators, the overall limit of individual indicators are generally strict with the WHO standards, and the United States and the European Union In line with the effective protection of drinking water for residents of water quality and safety. In April 2015, the "Action Plan for Prevention and Control of Water Pollution" issued by the State Council also proposed that by 2020, the water quality in the country will be phased in. The pollution-polluted water body will be greatly reduced and the safety and security level of drinking water will continue to rise. Innovative technology to solve the storm of water pollution So, how to solve the problem of drinking water pollution through the power of technology? According to the author, membrane technology is hailed as one of the most promising water treatment technologies in the 21st century. The advent of membrane technology is seen as a "revolution" in water treatment technology. The so-called "membrane" is like a "sieve" that can filter water, effectively filtering impurities and harmful substances in the water through the micropore on the membrane surface to obtain clean water. At present, most of the water purification products on the market use membrane treatment technology. The nanofiltration membrane technology due to its short process, high quality effluent, is considered to be quite potential of water purification technology. In 2014, Clearwater successfully developed an ultra-low pressure nanofiltration membrane with the characteristics of low desalination, low operating pressure, high system recovery rate and the like, achieving the goal of "removing various pollutants and retaining beneficial minerals", and more in line with the national "low Carbon, environmental protection "concept. Its ultra-low pressure nanofiltration water purifier appeared at the 2014 APEC summit to provide healthy and safe drinking water to politicians from all over the world. As a result, clear water source in the field of civil water purifier, launched a water purification products from underfiltration, coarse filtration, ultrafiltration to "selective filtration" of the 4.0 times by leaps and bounds revolution. 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Blue water Huimin: green water technology innovation to open a new era of drinking water safety