in tabaneh burial centers it is used in urban areas and it prevents leachate from penetrating into the ground. the device detects that it is a metal core. in this exhibition, the presence of knowledge-based companies and local manufacturers is wide ranging from the production of heavy machinery to all parts and accessories related to the use of the system. smart devices for waste collection our system is currently active in 76 cities and intelligently collects waste from people door-to-door . also, in the fifth exhibition of waste management and recycling, researchers in this field say about their latest technologies. i am the mediator of this technology we were able to dispose of contaminated sewage disposal centers. settle and turn it into fully distilled and sterile water that can be used in industry and agriculture. according to officials, one of the most important goals based on this exhibition is to eliminate middlemen in the recycling industry , which is considered the main challenge of this industry. the most important policy that we are following now is to be able to remove th