The importance of the development of circular economy is becoming more and more evident because of its use of accelerating economic restructuring and enhancing coordination in economic development and environmental protection. Circular economy can achieve improved resource utilization and reduce environmental pollution. Circular economy is based on the guidance of ecological laws, to use natural resources rationally and efficiently and to carry economic activity in line with the capacity of environment. With the development of economic activities, dwindling natural resources, the environmental impact of production activities are becoming increasingly prominent. In face of resource and environmental pressures, to find a reasonable model of economic development fitting social and ecological benefits is a priority. Circular economy aims to achieve unification of economic benefits, social benefits and ecological benefits. We should vigorously develop the circular economy. Enterprises are the basic units of social and economic activities. Enterprises whether to support business development of circular economy is the key problem. At this stage, enterprises circular economy development has many obstacles, such as cost, technology, and demand. These obstacles must be overcome to enable enterprises to find their own model to achieve circular economy and consciously plunge into the construction of circular economy. Based on the development of enterprises circular economy in Liao Cheng, in combination with the advanced mode of circular economy, this article summarizes up several models of enterprises circular economy development. These models have certain universality. I expect the article have some reference to development of circular economy. This article is from the following aspects:1. The theory of circular economy. This article summarizes up many theories about circular economy mentioned in many documents. This article analyzes the course of development of each theory and their limitations. The theoretical analysis reveals the substance of enterprise circular economy more clearly, furthermore providing guidance to the practice of enterprise circular economy.2. Analysis of the classic case of development of circular economy. This article analyzes domestic and foreign classic case, such as DuPont model, Kalundborg model, Guangxi sugar patterns and Lu Bei Chemical model. This article seeks reasons of the success models, proposed for other companies to learn from them.3. This article analyzes the status of development of circular economy in Liao Cheng. From the economic efficiency, resource utilization, environmental pollution and other aspects of the development of circular economy in Liao Cheng companies were also introduced.4. This article summarizes models of the development of circular economy in Liao Cheng. Circular economy development models have universal significance. This article aims to achieve the more in-depth implementation of the circular economy, while other companies have some reference.This study focuses on the construction of circular economy practice in enterprises and summarizes circular economy models which have universal effects. The models of circular economy practice in enterprises are divided into endogenous, horizontal and vertical models. And this article point out their characteristics and applicability. This is the main innovation of this paper.Because of the constraints of time, energy and research capacity, there are still some shortcomings in the paper, such as the practice of enterprises circular economy is only from material flow analysis, no quantitative analysis from value stream; pilot enterprises in three general circulation models economic development may not be comprehensive, needs further research, enrich and perfect. |