With the accelerating process of urbanization, the amount of construction waste generated and discharged in cities is also increasing rapidly. It has brought great influence on our living environment. So, how can we handle and use more and more construction waste? Let's take a look at the construction waste disposal method below.
I. Garbage classification and storage
1, classification
The waste generated during construction site preparation and construction is classified into harmful and non-hazardous, and the amount of harmless waste generated far exceeds the amount of hazardous waste. Harmless rubbish is mainly composed of solid and liquid materials, whether or not they can be biodegraded, but it will not cause harm to the environment. Harmful rubbish has potential hazards to human health, property and the environment. According to the national hazardous waste regulations, the garbage is classified. The characteristics of hazardous wastes are as follows: Explosive, flammable, spontaneously combustible, spontaneously ignited or toxic gas, corrosive, toxic (dragic or chronic), contagious, and other material changes caused by processing And these produced materials have the above characteristics.
All garbage generated during construction must be classified as hazardous and non-hazardous. Before the garbage is delivered to the waste management department, the project is responsible for its own waste management. In order to help the project in waste management, the security department should provide guidance to the project as required. And it is necessary to carry out assessment and periodic review of the waste. It is forbidden to stack hazardous waste and non-hazardous waste in the garbage dump. Medical waste cannot be mixed with other wastes and it should be stored in sealed and clearly labeled containers.
2, storage (harmful and harmless)
For uncontrollable emissions of hazardous waste, some methods should be used to store it, minimizing potential hazards. All hazardous liquids and irregular waste should be stored on an impermeable, edged floor. The storage area should be able to prevent rain erosion and reduce the potential pollution caused by rain erosion. Containers for storing rubbish should prevent: corrosion and aging of containers, leakage accidents, loss of rubbish during storage and transfer, and chemical reactions between rubbish.
During the construction preparation and construction period, the project shall provide a temporary garbage storage area. In order to ensure that the waste is not mixed, the waste is divided into small storage areas (eg, flammable waste should be separated from the oxides). In the storage area, adequate fire-fighting equipment and emergency treatment facilities must be provided for use. Waste management personnel have to be trained. Before the transfer of garbage, the project uses various safe methods to store the garbage.
Second, garbage recycling and processing
1, the cycle
The garbage generated during the construction of the project must be cleaned and collected at designated waste storage areas at any time (eg aluminum, copper, metal scrap, waste oil, batteries, paper, carton, cardboard, etc.). The waste can be handed over to local recyclers. The project collects recycled garbage materials, and it must comply with the rubbish management regulations to use reasonable methods to maintain the garbage storage area and prevent mixing with non-recyclable garbage.
2, processing
Off-site treatment: Waste should be sent to a local government approved treatment area. In accordance with the national solid waste pollution and control law and local government requirements for hazardous waste disposal regulations, pollution and damage to the environment caused by emissions, falling, and leakage during the treatment process should be prevented. Incineration at the construction site: In the construction site, when the local government and the owner have built garbage incineration sites, they must be burned in accordance with national regulations.
Garbage storage: If the local government and the owner design a landfill near the construction site, and the landfill can receive both hazardous and non-hazardous waste, the waste can be transferred to the landfill site. While enjoying urban civilization, people are also suffering from the troubles caused by urban garbage. How to handle and use more and more construction waste has become an important issue facing government agencies at all levels and construction waste disposal units. In order to better manage the garbage generated during the construction period and in the employees' living quarters, offices, and maintenance workshops, we must understand how to protect the environment.
An objective analysis of the changes in China's urban waste composition in recent years can be said that with the development of the Chinese economy and the improvement of people’s living standards, the content of combustibles and combustibles in urban garbage has increased significantly, and the calorific value has increased significantly. After pretreatment such as sorting, the waste calorific value is close to the calorific value of urban waste in developed countries. Therefore, some cities in China, especially the economically developed coastal regions, have already established the basis for the development of incineration technology.
China's waste treatment industry started late, but through the development of these years before 2013, China's waste treatment industry has begun to take shape. The capacity of the waste disposal market has increased significantly, the market penetration rate has rapidly increased, and the number of companies entering the sanitation industry has also rapidly increased. China's waste disposal market has entered the growth period from the lead-in period and is now moving towards a mature period.
Summary: The topic of construction waste treatment is introduced here for small partners. For more exciting information, please pay attention to this site information.
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