The disposal of coal gangue resources in mining areas will cause a lot of waste of resource waste,and the process of disposal,storage and stacking will cause pollution to the environment,and the leachate will have an impact on groundwater.Liaoning asia-pacific solid waste research institute put forward a scientific research project on the comprehensive utilization of coal gangue resources to pro-duce organic fertilizer.Through independently developed production process technology and multiple experimental analyses,the organic fertilizer formula was obtained.Coal gangue is used as the main raw material,mixed with nutrient soil,humic acid,binder,bacterial a-gent,etc.,and processed into environmentally friendly agricultural organic fertilizers.There are two sets of production process technolo-gies in the project development and design.The products of production lines 1 and 2 are 100 000 t/a of granular soil enhancing parti-cles,while the products of production lines 3 and 4 are 400 000 t/a of powdered soil enhancing particles.The implementation of the comprehensive utilization project of coal gangue resources has reused the solid waste of coal gangue,achieving the goals of saving miner-al resources,improving soil erosion,and protecting the ecological environment.
coal gangueorganic fertilizer production from coal ganguecomprehensive utilization of coal gangueengineering design of organic fertilizercomprehensive utilization of mineral resources
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