基于文献计量的制药废水处理专利发展趋势

为了解制药废水处理技术的实际应用情况，以与Web of Science同源的DⅡ（Derwent Innovations Index，德温特）专利数据库为数据源，对1985—2017年的制药废水处理专利进行数据分析与挖掘.采用Excel和EndNote相结合的方法，系统分析了国内外制药废水处理的研究现状，阐明了制药废水处理的主流技术及专利领先的国家和组织，讨论了该领域的研究热点及前沿方向.结果表明:制药废水处理专利数量持续增长，特别是自1998年以来增速显著；制药废水处理专利以过滤技术、非生物滤池的好氧技术、混凝技术为主，它们是制药废水处理工艺中常用和必须的单元；我国在制药废水处理领域发表的专利数量居世界第1位，并且对主流技术研究的关注度和需求很高，但专利授权数量相对较少，研究深度有待提高.研究显示，面对我国类型复杂的制药废水，建议加强技术创新，以解决我国制药废水处理的技术难题，使我国制药废水处理技术向着实用化的方向发展. 

Patent Development Trend on Pharmaceutical Wastewater Using Bibliometric Analysis

This paper analyzed the patents on pharmaceutical wastewater treatment from 1985 to 2017 in the DⅡ Database (same data source as Web of Science) using the bibliometric analysis method in order to learn the applications of those patents. This paper combined Excel and Endnote to systematically analyze the current research on pharmaceutical wastewater treatment in China and other countries, identified the mainstream technologies and leading countries and organizations holding these patents, and discussed the hot research topics and development trend in this area. Results showed that the number of the patents on pharmaceutical wastewater treatment increased continuously, especially in recently 20 years. The mainstream technologies in the patents included filtration, aeration, and flocculation, which are commonly used in industrial applications. China ranked the first in terms of patent application in this area with a great attention to the mainstream technologies although the number of licensed patents was still low and the quality of the patents was not high. More technical innovations and more applicable technologies are still needed to solve the complicated problems due to various types of pharmaceutical wastewaters in China.