Solid waste treatment method

Abstract

The invention relates to the technical field of mine resources, in particular to a solid waste treatment method. The solid waste treatment method comprises the steps of 1, waste pretreatment, 2, goldrecleaning and recycling, 3, recovery of other associated elements, 4, nonmetalic mineral recovery and 5, filling use of tailings. In the step 1, gold recleaning and recycling are carried out on tailing powder obtained in the step 1, and a specific gold recleaning and recycling process is selected according to tailing performance, and the main technology mainly comprises the steps of gravity separation, flotation and cyaniding; in the step 3, copper, iron, zinc, sulfur, lead and the like contained in the tailings in the step 2 are recovered; in the step 4, quartz and feldspar are recovered from the tailings left in the step 3; in the step 5, the tailings obtained in the step 4 serve as a raw material of a filling mining method to be used for filling. According to the technical scheme, secondary resources are effectively and fully recycled and utilized, the ecological environment is effectively protected and improved, the utilization rate of mineral resources is increased, and sustainable development of gold mines is promoted.

Description

technical field [0001] The invention relates to the technical field of mine resources, in particular to a solid waste treatment method. Background technique [0002] Gold mine tailings are solid materials that are discarded after ore processing or gold extraction process to recover gold and other useful components. Large-scale formal gold mine tailings are usually disposed of in the form of tailings storage, but with the expansion of mine scale With the prolongation of mining history, the occupation of land continues to expand, the construction and management costs of tailings ponds continue to increase, the tailings facilities of small and medium-sized informal mines are simple or do not build tailings ponds at all, and the tailings are generally discharged into river ditches, valleys or low-lying areas nearby Land, surface water pollution due to accidents such as mine tailings leakage or direct discharge, dust from tailings, land desertification, and farmland production cu...

AI Technical Summary

Problems solved by technology

[0002] Gold mine tailings are solid materials that are discarded after ore processing or gold extraction process to recover gold and other useful components. Large-scale formal gold mine tailings are usually disposed of in the form of tailings storage, but with the expansion of mine scale With the prolongation of mining history, the occupation of land continues to expand, the construction and management costs of tailings ponds continue to increase, the tailings facilities of small and medium-sized informal mines are simple or do not build tailings ponds at all, and the tailings are generally discharged into river ditches, valleys or low-lying areas nearby Land, surface water pollution due to accidents such as mine tailings leakage or direct discharge, dust from tailings, land desertification, and farmland production cuts occur from time to time, bringing harm to people's lives and pollution to the ecological environment. Moreover, gold mineral resources are non-renewable. Among China's gold resource reserves, refractory resource reserves account for 15% of the remaining resource reserves. With the increasing demand for gold and the massive development and utilization of mineral resources, mineral resources are becoming increasingly poor. Therefore, in view of the above problems, a solid waste treatment method is proposed