With the increasing development of cities, more and more construction waste is produced. How to effectively break down the phenomenon of "garbage siege" and make construction waste become available resources? Ningbo City recently issued the Interim Measures for Supporting the Resource Utilization of Construction Waste in Ningbo City, and put forward some guiding opinions on how to reduce construction waste and how to improve the resource utilization of construction waste.

Construction waste refers to the waste generated in the process of building, rebuilding (expanding), demolishing all kinds of buildings (structures), pipelines, bridges and house decoration and decoration, mainly including engineering slag, waste mud, engineering waste, demolition and decoration waste, etc.

According to estimates, in 2018, 35.51 million square meters of construction dregs were approved for disposal of urban construction waste in the central urban area of Ningbo alone. Where these garbage should go has become a difficult problem that we have to face directly.

Ningbo actively explores the recycling and utilization of construction waste. Ningbo Municipal Housing and Construction Bureau, together with the Municipal Finance Bureau and Municipal Economic and Credit Bureau, has issued the Interim Measures for Supporting the Resource Utilization of Construction Waste in Ningbo (hereinafter referred to as the Interim Measures) on the basis of investigating the current situation of the construction waste resource utilization industry in the whole city. At the same time, Ningbo Municipal Housing and Construction Bureau, together with the Municipal Economic and Credit Bureau, issued the Guiding Opinions on Cultivating Construction Waste Resource Utilization in Ningbo (hereinafter referred to as "Guiding Opinions") in order to promote the cultivation of construction waste absorption enterprises in various districts and counties (cities) and strengthen the work guidance and coordinate with the implementation of the Interim Measures.

It is understood that the "Interim Measures" and "Guiding Opinions" clearly define the principle of controlling sources and reducing the amount of construction waste, taking the use as the first, and effectively strengthen source management to reduce the production of construction waste. Encourage in engineering design, combined with the original site topography and landform, through reasonable vertical design to reduce the emissions of building slag. New technologies and processes to reduce slurry discharge are encouraged in engineering projects.

Ningbo City has scheduled a schedule for the recycling of construction waste:

In 2019, districts and counties (cities) fostered and introduced 1-2 large-scale construction waste resource utilization enterprises.

By 2020, the utilization rate of construction waste in central urban area will reach more than 60%.

By 2022, the utilization rate of construction waste resources in all districts and counties (cities) will reach more than 80%.

Ningbo will actively support the recycling of construction waste, and support the adoption of policy support and financial support.

Policy support includes tax incentives, land use, product promotion, scientific research support and environmental protection support. The production and sale of construction waste resource utilization products can enjoy the policy of value-added tax levying and refunding immediately. Enterprises that develop construction waste resource utilization can temporarily exempt from environmental protection tax. In terms of land use, each district or county (city) can use flexible annual leasing or leasing to supply land for construction waste resource utilization enterprises when implementing production land matching with production capacity. In terms of product promotion, the proportion of building materials used in construction projects to the same kind of products should not be less than 30%, and that of municipal and landscape construction projects to the same kind of products should not be less than 50%. On the support of scientific research, key technology research projects such as research and development and application of building waste resource utilization products are listed in the Municipal Science and technology plan projects. In the aspect of environmental protection support, the proportion of marine dumping of building dregs is gradually reduced, and the utilization ratio of building dregs is increased by building ecological parks, botanical gardens, mining and landfills.

Construction waste recycling enterprises can enjoy investment subsidies for new or technological renovation projects. Before qualified construction waste recycling enterprises submit applications for subsidies to the local financial departments, the relevant information shall be examined by the local residential construction and credit departments. The information that enterprises should provide includes the production and operation account of the utilization of construction waste resources in the past three months.