Research on the Harmful of Coal Solid Waste and Its Recycling Technology

Coal gangue is solid waste, which is all kinds of rocks and residual abandoned coal produced in the process of mining and washing in machining, its composition is very complicated. The paper is based on the data collection and field investigation, and discusses the harm of coal solid waste from different angles, especially the harm of spontaneous combustion gangue, it can make the air pollution of the environment, water quality and soil damage, the collapse, and take up valuable land resources and other hazards. Based on the collection of coal solid waste samples from different parts, we analyze the samples of material composition in detail by experimental methods, and point out the importance of the technology for coal solid waste recycling, it has strategic significance for making circular economy, reducing resource depletion, and realizing the coordinated development of the economy and the environment. At the same time, through research, we can enable the companies to realize the dangers of coal solid waste, and its available ingredients, so as to speedup the solid waste recycling quick, healthy and efficient development.