With the acceleration of urbanization, the output of municipal solid waste has increased year by year, and landfills in many cities have entered the expansion stage. As the core infrastructure of the waste treatment system, the stable operation of landfills cannot be separated from a set of pipeline systems that can cope with complex environments - leachate drainage, rainwater collection, and landfill gas transportation. Each link of the pipeline has to withstand multiple tests such as corrosive media, heavy-load extrusion, and long-term underground erosion. At this time, AD HDPE carat pipe (high-density polyethylene wound structure wall pipe) has become an ideal choice for landfill expansion due to its unique advantages.

HDPE carat pipe's core advantages lie in "strong weather resistance, corrosion resistance, and stable structure". It is made of high-density polyethylene raw materials and is made by winding molding process. The pipe wall has a corrugated structure, and the ring stiffness is much higher than that of ordinary plastic pipes. It can easily withstand heavy-load rolling in landfills and avoid pipeline deformation and rupture. HDPE material itself has excellent chemical corrosion resistance, which can resist corrosive media such as acid and alkali in leachate, organic solvents, etc., and effectively prolong the service life of pipelines. In terms of connection mode, AD HDPE carat pipes use hot melt or electrofusion connection technology, and the interface strength is higher than that of the pipe body. It completely eliminates the risk of leakage, prevents leachate from polluting groundwater, and protects the ecological environment around landfills.

As a senior brand in the plastic pipeline industry, AD Pipe has a mature technical accumulation in the production of HDPE carat pipes. Its products strictly follow national and industry standards such as GB/T 19472.2-2017, use high-quality HDPE raw materials, and manufacture through automated production lines to ensure the dimensional accuracy and performance stability of each pipeline. In a number of landfill expansion projects, AD HDPE carat pipe has been verified by practical application - when a southern city landfill was expanded, AD carat pipe was selected for the leachate guide system. During the operation for 3 years, the pipeline did not have any leakage or deformation problems, effectively ensuring the environmental protection operation of the landfill and reducing the later maintenance cost.

In addition to product quality, AD Pipeline also provides professional technical support for the landfill expansion project. From the pipeline selection and laying scheme design in the early stage of the project, to the installation guidance during the construction process, and then to the maintenance consultation in the later stage, the technical team of AD followed up the whole process to ensure the perfect adaptation of the pipeline system and the landfill project, and escort the smooth completion and long-term operation of the project.

The expansion of the landfill is an important part of the urban environmental protection upgrade, and the reliability of the pipeline system directly affects the operation efficiency and environmental protection effect of the landfill. AD HDPE carat pipe is perfectly adapted to the complex application scenarios of the landfill due to its "durable, environmentally friendly and reliable" characteristics, and has become the preferred pipeline solution for the expansion project. Choosing AD is to choose the guarantee of the quality of the project and the protection of the ecological environment.