Li Chengjiang

Li Chengjiang, Chief Engineer, China Municipal North China design and Research Institute

▶ Personal resume

Li Chengjiang, born in 1956, is a professor level senior engineer majoring in water supply and drainage. Professor level senior engineer of North China Municipal Engineering Design and Research Institute, executive director of editorial board of China water supply and drainage journal. He graduated from Harbin Institute of architecture and engineering, and has worked in North China design and Research Institute of municipal engineering since 1983. Now he is the chief engineer of the Institute. He has won many excellent design achievement awards from the Ministry of construction and Tianjin, such as Jizhuangzi sewage reuse project, 05 series of building standard Design Atlas - reclaimed water project, and participated in many scientific research projects, such as "2010 technical progress development plan of urban water supply line" And the overall compilation of "long-term goals for 2020" and "feasibility study on the treatment project of main water pollution sources in Nansihu Lake Basin". "He has successively presided over and approved a number of national, provincial and ministerial key projects, and participated in a number of national industry development policies and plans. As an expert of the national development and Reform Commission, he has participated in the examination and inspection of national major projects for many times. He has published many papers and works in relevant journals and academic conferences at home and abroad. The work achievements have been awarded many times at the national or provincial level. In 2013, according to the needs of the industry, we focused on the introduction and research of advanced treatment technologies for sewage treatment reaching class IV standard of surface level, and low water temperature (minimum 6 ℃) sewage treatment technologies in northwest, Qinghai and Tibet.

▶Implementation cases

The 550000 m3 / D Jizhuang Zi sewage plant reserved to meet the class IV standard measures of surface level has been completed. The sewage treatment plant with biological membrane + activated sludge method has been used in the construction of Lhasa second sewage plant and Xining first sewage plant. In view of the requirements of urban ecological water demand and the improvement of environmental quality around the sewage plant, the high-efficiency integration technology of underground sewage plant is studied to achieve the goal of high efficiency and land conservation, ground Park and safe and stable operation of underground sewage plant, It can meet the requirements of sewage recycling for landscape water. Implementation case: the Qingdao high tech Zone has completed 18000m3/d sewage plant under the ground and 40000 m3 / D underground sewage plant in the south of Wenzhou. Underground sewage plants in Yantai, Shijiazhuang and Zhuhai are being designed. According to the characteristics of high concentration and complex and changeable leachate of municipal landfill, through the research and Engineering practice in recent years, Chengdu Chang'an landfill EPC project completed in 2013 adopts M The combination of Br, NF and roo3 catalytic oxidation technology can achieve the standard discharge of treatment water and membrane concentrated water, and the overall technology reaches the advanced level in China.

▶ Research experience

•In 2013, he participated in the revision of code for design of outdoor drainage, and the new code provides technical standard support for the preparation of urban drainage and waterlogging prevention planning.

•National "Eleventh Five Year" water project 2008zx07317 - 003 "Research on integrated incineration technology of wet sludge circulating fluidized bed in municipal wastewater treatment plant" passed the appraisal and acceptance in 2013, and built 100 tons of wet sludge on the basis of small-scale test and pilot test / Japan's production demonstration project, after two years of application and improvement, has formed a domestic technology package of process and equipment with independent intellectual property rights. Its performance has reached the advanced level in China, its investment is only half of the imported technology, and its operation cost is also low. It provides support for the localization of sludge incineration system.

•It provides support for the localization of sludge incineration system. At the same time, Mr. Li Chengjiang was responsible for the planning of technology R & D and process package development of the water professional section of NCRI.