Behind the prosperity of the local leather processing industry, waste materials such as waste leather and waste textiles have caused serious environmental pollution and become a focus of public attention. As a result, the government has consolidated and shut down hundreds of related enterprises, leading to a significant decline in annual output value. In order to solve the problem of industrial solid waste restricting economic development, the local government has launched a recycling project, striving for a win-win situation between economy and environmental protection. In this project, industrial solid waste is transported to the storage pit by garbage collection trucks, and then shredded to a size of 150-200mm by a double shaft shredder, and mixed with sludge for co-firing. Since the project started, the equipment has been in good condition and the size of the shredded materials meets the standard. This effectively alleviates the environmental problems caused by the leather processing industry and explores new paths for local sustainable development.