With the acceleration of urbanization, the construction industry has flourished, and the amount of construction waste has also increased significantly. Construction waste not only occupies a large amount of land resources, but also causes serious pollution to the ecological environment. However, driven by policies and technological innovation, the construction waste treatment industry is ushering in an opportunity for rapid development.
一. Current Status of the Development of Construction and Decoration Waste Treatment Industry
1. Construction waste is generated in large quantities and comes from a wide range of sources
In recent years, my country's urbanization has been rapidly advancing, the construction industry has flourished, and the amount of construction waste has also increased significantly. According to data, in 2021, the proportion of construction waste generated by building demolition in my country was 45.08%, becoming the main source of construction waste. In addition, the demolition of old buildings, the construction of new buildings, and decoration waste are also important sources of construction waste. The generation of a large amount of construction waste not only occupies land resources, but also causes serious pollution to water resources, air and soil quality.
2. Low resource utilization rate of construction waste
Despite the enormous resource potential of construction waste, the resource utilization rate of construction waste in China remains low. Compared with developed countries, there is a significant gap in the resource utilization and recycling of construction waste in China. For instance, the United States, Japan, and regions in the European Union have achieved a high level of "reduction, harmless treatment, resource recovery, and industrial application" for construction waste, effectively minimizing environmental impact while maximizing material reuse. In contrast, the resource utilization rate of construction waste in China is less than 10%.
3. Policies promote industry development
In order to promote the development of the construction waste treatment industry, the country has introduced a series of policies. The new "Solid Waste Law" promulgated in April 2020 separates "construction waste" from "domestic waste" in the Solid Waste Law, clarifies government responsibilities, and puts forward the importance of source reduction. In July 2021, the National Development and Reform Commission issued the "14th Five-Year Plan for the Development of Circular Economy", proposing that the comprehensive utilization rate of construction waste should reach 60% by 2025, and that a demonstration project for the resource utilization of construction waste should be carried out, and 50 demonstration cities for the resource utilization of construction waste should be built. The introduction of these policies has provided strong support for the development of the construction waste treatment industry.
4. Technological progress boosts industry development
Technologically, the construction waste treatment industry has witnessed remarkable advancements. In the 1980s, the number of patent applications in China's construction waste treatment sector was relatively low. However, since 2000, particularly after 2017, driven by robust government support and the introduction of relevant policies and regulations, the number of patent applications related to construction waste treatment has surged significantly. These technological advancements provide a strong guarantee for the efficient utilization of construction waste.
二. How to Achieve Efficient Utilization of Construction and Decoration Waste Treatment
The key to the efficient utilization of construction waste lies in resource recycling. Construction waste can be transformed into useful products through processes such as crushing, screening, impurity removal, and dedusting by professional equipment.
1. Production of recycled aggregates
Components such as concrete, gravel, and stones within construction waste can be crushed and screened to yield recycled aggregates. These recycled aggregates serve as raw materials for manufacturing permeable bricks, standard bricks, mortar, and other building materials, replacing traditional sand and gravel. They are applied in various fields such as housing construction and road construction.
2. Other ways to utilize resources
In addition to the production of recycled aggregates, there are other ways to utilize construction waste. It can be used to produce various recycled products, including recycled commercial concrete, recycled water-stabilized materials, recycled asphalt, refuse-derived fuel (RDF), PC prefabricated components, 3D printing powder, recycled cement, and so on. These recycled products have extensive applications in housing construction, road construction, water conservancy projects, among others. They can not only save substantial amounts of resources but also reduce energy consumption and emissions during the production of building materials.
3. Recycling of sludge and stone powder
In the process of construction waste treatment, substantial quantities of silt and stone powder are produced. These wastes can be transformed into recycled planting soil for construction waste by incorporating other waste materials (such as sludge from sewage treatment plants, residues from wineries and food factories) and trace elements of peat soil. This recycled planting soil possesses not only the properties of natural soil but also features such as high fertilizer efficiency, good air permeability, and strong water retention. It can be applied in greening projects and agricultural planting.
三. Yonghua Building Decoration Waste Intelligent Recycling System
Yonghua Machinery has been deeply engaged in the construction and decoration waste treatment field. With years of practical experience, Yonghua Machinery has tailored efficient and systematic solutions for diversified processing materials. The company has independently developed a full set of intelligent environmental protection equipment, enabling functions such as sorting, crushing, desilting, iron removal, air separation, and flotation. The Yonghua Building Decoration Waste Intelligent Recycling System is a one-stop comprehensive solution launched by Yonghua Machinery for construction and decoration waste treatment.
1. System Overview
Yonghua's intelligent recycling system for building and decoration waste tailors solutions according to material properties and on-site circumstances. It enables the efficient classification and resource utilization of building and decoration waste through fixed and mobile processing systems. The system incorporates a diverse range of advanced equipment, including crawler mobile crushing stations, tire mobile crushing and screening stations, jaw crushers, impact crushers, cone crushers, sand making machines, screening machines, and iron removers among others. These components ensure efficient, energy-saving, and environmentally friendly processing results.
2. Technical advantages
(1) Efficient classification and processing: Yonghua's intelligent recycling system for construction and decoration waste adopts advanced classification technology, enabling effective separation of different materials in construction and decoration waste, providing a basis for subsequent resource utilization.
(2) Intelligent control: The system is equipped with an intelligent control system, which can monitor its operating status in real - time, adjust processing parameters, and ensure stable and efficient operation.
(3) Energy saving and environmental protection: Yonghua Machinery's equipment adopts advanced energy - saving technology to reduce energy consumption and emissions, compliant with national environmental protection requirements. Meanwhile, the system can also recycle the waste generated during the treatment process, maximizing resource utilization.
(4) Customized solutions: Yonghua Machinery provides customized solutions based on customers' specific needs and site conditions. Both the fixed and mobile treatment systems can meet customers' needs, achieving efficient, energy - saving, and environmentally friendly treatment effects.
Driven by policies and technological innovation, the construction waste treatment industry is embracing an opportunity for rapid development. Efficient utilization of construction waste can bring multiple benefits. Not only can it save substantial amounts of resources, but it can also reduce energy consumption and emissions during the production of building materials, thereby protecting the ecological environment.
The Yonghua Construction and Decoration Waste Intelligent Regeneration System, an efficient, energy-saving, and environmentally friendly construction waste treatment solution developed by Yonghua Machinery, has been successfully applied in numerous projects. It provides robust support for the development of the construction waste treatment industry. In the future, Yonghua Machinery will continue to focus on researching and developing more advanced and efficient construction waste treatment equipment, making greater contributions to the growth of the construction waste treatment industry.
