Pneumatic transportation of municipal waste – a means of improving the ecology of the city

Abstract

The article considers the issues of the impact on the environment of the city of pneumatic transportation for the removal of municipal solid waste (MSW). The disadvantages of conventional collection and transportation of MSW (container-garbage truck) are indicated, the main of which is the release of greenhouse gases into the atmosphere of the city (methane, ammonia, sulfur compounds, etc.). These problems can be eliminated by pneumatic transportation, which collects and moves waste using an air flow in an underground pipeline. As the conducted research has shown, one of the promising directions for the development of urban waste disposal is the use of a combined pneumatic intake-injection system, for the development of a schematic diagram of which the patent of the Russian Federation for invention No. 2787693 was obtained. One of the most important technological operations in the pneumatic transportation removal of MSW is the purification of the air emitted into the atmosphere from dust and harmful gaseous impurities. For this purpose, multi-stage air filters are provided in the developed pneumatic transportation system. The conducted studies have established that in order to improve the purification of the air removed from the pipeline, it is advisable to use photocatalytic purification as a filter of the last stage.