Present Situation and Development Proposals of the Resource Utilization of Foundry Waste Sand——Taking Ningbo as an Example

Author of the article:ZHANG Shengquan1 , GAO Xin2 , WEN Xiaodong1 , FENG Lei1 , LI Danni1

Author's Workplace：1. School of Civil and Transportation Engineering, Ningbo University of Technology, Ningbo 315211, China; 2. Ningbo Jiaotou Resources Co., Ltd., Ningbo 315000, China

Key Words：foundry waste sand; resource utilization; suggestion; digital empowerment

Abstract：With the development of foundry industry, the discharge of foundry waste sand is increasing day by day. The existing stockpiling treatment not only takes up a lot of land, but also brings serious environmental pollution. In this paper, starting with the development background of foundry waste sand industry, the way of resource utilization and existing problems, the present situation of foundry waste sand in Ningbo was analyzed. In view of the characteristics of foundry waste sand, such as huge discharge, complex composition, low resource utilization and low supervision efficiency, the corresponding development suggestions are put forward, that is, through “strong chain, extended chain and complementary chain” mode, to establish a multi-industry collaborative foundry waste sand recycling system, and make “green +” become a new economic growth point; combined with the development trend of “digital empowerment”, the foundry waste sand database and information sharing service system are set up to improve the supervision efficiency and serve the industry, and improve the utilization rate of waste sand resources in the whole chain.