Research of Sustainable Use of Tire Shreds in Landfill

Abstract

Studies are on-going to establish the suitability of tire shreds in the landfill bottom drainage layer, to minimize clogging. Four experimental columns were constructed in which were 500 mm long and 200 mm in diameter. They were filled with different fillers and with a different amount of tire shreds. The most important problem with drainage filler in landfills is clogging. Over long periods of time in landfill operation, the drainage layer clogs (the pores of the layer become smaller and the porosity of the layer becomes smaller). The experiment was carried out for 365 days. Although the landfill for this period represents only one-fiftieth or less of the operation time, the laboratory tests found that the drainage layer bandwidth of reduction in one year can have a negative impact in the long run over time. The main elements that influence the decrease of conductivity are the total suspended solids and calcium and iron compounds. The change of these compounds was observed during the column study, where the concentration of each month in all the columns was decreasing. The results showed that the waste of rubber (tire shreds) used for creating fillers in columns provided greater porosity of the layer. It is a beneficial reason to use a rubble and tire shreds waste mix for forming the drainage layer in landfills.

Scrap Tyre Management Pathways and Their Use as a Fuel—A Review

“…When whole tyres are stockpiled, the leachate is likely to be slower than that of shredded tyre. High permeability soil may increase leaching while the time that the water is in contact with the tyres affects leaching [20].…”

Review in Waste Tire Management—Potential Applications in Mitigating Environmental Pollution

“…Storage of waste in landfill is one of the worst methods for disposing of waste tires because the tire components adversely impact the environment. Toxic substances are precipitated from both the contained metals and other materials, leading to water and soil contamination [26][27][28]. One of the biggest risks associated with the general storage of waste tires is the possibility of uncontrolled ignition, accompanied by the release of CO, CO 2 and SO x into the atmosphere, with harmful human and environmental effects [29].…”

Experimental Study on Liquefaction Characteristics of Saturated Sands Mixed with Fly Ash and Tire Crumb Rubber

“…Scrap tires show useful engineering properties, including low bulk density, high thermal resistivity, high elastic deformability, high drainage capacity, high physical and chemical durability, and high damping capacity [39,40]. Thus, they are used extensively in different geotechnical engineering applications as a light-weight construction material for embankments, in backfills behind retaining or caisson quay walls, in the reinforcement of soft soil, in the drainage layer in landfills, and in slope stabilization [41][42][43]. Scrap tires are also used for reducing the dynamic and liquefaction effects on structures [44,45].…”