Nowadays the cities are expanding so fast and the materials are being consumed, so the waste is being increasingly produced. So the right method of waste disposal is getting extremely critical. In recent years they’ve been developed two methods of waste disposal: pit-type and dump-type.
Pit type: In this method, one would seal the soil-bed with HDPE special coverage after almost 100 meters of excavation. Then one puts the drainage pipes and connects them to the shaft network.
The drainage system would collect the seepage from the waste and the leakage from the rain water and dispose them through the shafts.
Dump type: In this method, a region would be constrained with embankment (up to 20 m) and then it would be sealed with HDPE special coverage. Afterward the drainage systems are put there and then they’ll be connected to the manholes outside the region.
TNS can provide the requirement in this field with presenting the drainage pipes and shafts with great strength and chemical resistant to the various chemicals. Also, by using new technology in the construction of telescopic shafts, the company is able to provide this technology.
In addition to natural geological barriers, new landfills also use drainage lines. This is to prevent the leachate entering the basement. The leaked water is collected in pipes and directed to control shafts. These pipes carry a lot of load. Also, these pipes exposed to chemicals must withstand high mechanical loads.
The knowledge of Tadbir Novin Sazan Company is used in the calculation, production and installation of polyethylene products.
The diameter of the polyethylene drainage pipe produced by this company is usually 300 mm. At first glance, this does seem normal, but experience has shown that small pipes become clogged due to the presence of chemicals in the leachate and foam production.
In a drainage polyethylene pipe, the diameter of the hole is adjusted so that no obstruction occurs. It can be removed in case of obstruction.
Today, landfilling is done in two ways: dump-type and pit-type landfill. In the pit-type method, the waste leachate must be directed to the shafts. The components of the telescopic shaft are made movable and move as the garbage moves.
Usually the diameter of the shafts is 1200 mm or more. This is because repairs to the shafts must be considered.
Telescopic shafts allow the construction of structures up to a height of 100 meters. At the Tabriz landfill, the shafts are placed up to a height of 50 meters