Construction waste sorting equipment

Construction waste refers to the waste generated during the construction, repair, or demolition of buildings. With the acceleration of urbanization, the types and quantities of construction waste are continuously increasing, causing serious environmental impacts. Therefore, understanding the types of construction waste and their treatment methods is particularly important.

Construction waste is mainly divided into five major categories: engineering slag, engineering sludge, construction waste, demolition waste, and decoration waste. These wastes are not only diverse in types but also complex in composition, covering everything from inorganic non-metallic materials to organic substances.

Engineering slag mainly refers to the slag generated during the excavation of foundations, including valuable yellow soil and sandstone from trenching that can be utilized, as well as miscellaneous backfill soil that cannot be directly used. These materials, after processing, can be used for land reclamation, soil improvement, greening, and other ecological restoration projects. For example, trenching yellow soil can be collected separately and used directly, while trenching sandstone can be processed into recycled sandstone materials through resource recovery facilities for use in building material production.

Engineering sludge is the sludge generated during the construction of drilled pile foundations, diaphragm walls, and other processes. This type of waste usually contains a large amount of water and silt and needs to be treated through on-site washing, silt separation, and other resource recovery methods. If on-site treatment is not possible, it can be dried and then sent to construction waste resource recovery facilities for further treatment.

Construction waste mainly includes waste materials generated during the construction of various buildings and structures. This type of waste contains a large amount of metal and non-metal waste, such as discarded concrete blocks, brick slag, and concrete. Metal waste can be recycled back into projects after simple processing, while non-metal waste can be resourcefully utilized through on-site disposal equipment.

Demolition waste is the waste generated during the demolition of buildings and structures. This type of waste is usually large in volume and complex in composition. It is encouraged to set up temporary construction waste resource recovery facilities on-site for preliminary treatment. If on-site treatment conditions are not met, it is necessary to choose surrounding construction waste resource recovery facilities for disposal.

Renovation waste refers to the waste generated during the decoration and renovation of houses. This type of waste mainly includes light materials such as waste plastics, waste paper, and waste wood, as well as some construction slag and concrete blocks. Renovation waste should be processed at construction waste resource recovery facilities that have sorting or disposal capabilities, following the principle of proximity.

In summary, there are many types of construction waste, and each type has its specific treatment method. Through sorting and resource recovery, not only can the pollution of construction waste to the environment be reduced, but also the recycling of resources can be achieved.