Nanjing Bidun Environmental Protection Technology Co., Ltd. was founded in 2010, with a registered capital of 31,579,619 yuan, located in the national Nanjing High-tech Industrial Development Zone, mainly focusing on the research and development, manufacturing and technical services of modern special membrane technology and related complete sets of equipment, is a film technology enterprise based on scientific research, production, sales and service as one. In 2022, it will be recognized as a national specialized and special new small giant enterprise by the National Ministry of Industry and Information Technology. The company independently developed, based on the oil film interception deoiling technology, is a new concept of oil-water separation technology, with seven national invention patents, utility model patents 26. It won the gold medal of the Geneva Invention Achievements Expo, “National Key New Products”, and was included in the Ministry of Industry and Information Technology, the Ministry of Science and Technology, the Ministry of Finance, the State-owned Assets Supervision and Administration Commission of the State Council and other four departments issued the “Major technology and equipment Independent Innovation Guidance Directory” 8.1.2. The Twelfth Five-Year National Science and Technology support Plan project “Intelligent Water Surface Oil disposal Platform and complete equipment Development” undertaken by the company in cooperation with the Water Transport Research Institute of the Ministry of Communications won the first prize of the Ministry of Communications Science and Technology Award. The intercepting oil removal technology is widely praised by users because of its high precision, high efficiency, raw material and original oil recycling, low operating cost and small secondary pollution. The products are widely used in petroleum, petrochemical, coal chemical, transportation and other fields, and have become the forefront of enterprises in related business fields. The company cooperated with Dalian Institute of Chemical Sciences of Chinese Academy of Sciences and Beijing Ke Membrane Technology Co., Ltd. to develop PTFE (polytetrafluoroethylene) hollow fiber membrane, which is a new generation of hollow fiber membrane with special properties and has three national invention patents. Its base material PTFE has super strong chemical stability, strong acid, alkali, organic corrosion, high temperature resistance, pollution resistance and other characteristics make it a unique film material. However, due to its unique physical and chemical properties, it can not be prepared by the traditional LIPS method. Cao Yiming, chief researcher of Dalian Institute of Chemical Sciences, Chinese Academy of Sciences, has successfully developed a PTFE hollow fiber membrane preparation process after 8 years. In cooperation with Petronas, the company adopted the membrane to replace the traditional scrubber by using the membrane absorption principle and applied it to the CO2 capture of offshore gas platforms, and achieved success, winning the 2017 Institution of Chemical Engineers Oil and Gas Award. PTFE hollow fiber membrane has a wide range of application prospects – based on the membrane absorption principle, it can be used in high ammonia nitrogen wastewater treatment, odor removal, seawater desulfurization and other fields; Based on the principle of membrane distillation, it is applied to solar desalination and concentration of high salt wastewater. It can also be used as an ultrafine filter membrane for removal of suspended matter in complex water quality. Company adhering to the achievement of customers; Integrity/collaboration; Perseverance; Brave to take responsibility; Open and enterprising, always create first-class business philosophy, committed to the development of modern membrane separation technology, determined to become a special membrane separation technology expert.