基于物质流和能量流分析的典型工业园区循环经济发展评价

将物质流和能量流分析方法运用在工业园区循环经济发展评价中,构建了工业园区循环经济发展评价指标,并以江阴高新技术产业开发区为研究对象,分析各产业的物质流和能量流情况,对园区循环经济进行初步评价,从而提出循环化改造有效路径。结果表明:园区能源产出率为3.02万元/t(以标准煤当量计),水资源产出率为1 257元/m³,土地产出率为11.75亿元/km²,投入产出率较低;工业固体废物综合利用率为88.59%,资源能源综合利用率不高;循环经济产业链关联度为87.4%,但产业发展不均衡,污染集中防治水平有待提高。从优化产业结构、完善循环经济产业链、推进资源能源高效利用、推进环境综合整治4个方面提出研究区域的循环化改造有效路径,以提升园区经济、资源和环境效益。

Evaluation of circular economy development in typical industrial parks based on material flow and energy flow analysis

The material flow and energy flow analysis methods were used for evaluation of circular economy development in industrial parks, and the evaluation indexes were constructed. Taking Jiangyin High-tech Industrial Park as the research object, a preliminary evaluation of circular economy of the park was carried out, and the effective paths for recycling transformation were proposed by analyzing the material flow and energy flow of each industry in the park. The results showed that the energy productivity of the park was 30 200 yuan/tce (ton of standard coal equivalent), the water resource productivity was 1 257 yuan/m3, and the land productivity was 1 175 million yuan/km2, which were relatively low. The comprehensive utilization rate of industrial solid waste was 88.59%, and the comprehensive utilization rates of resources and energy were not high. The relevance of circular economy industry chain was 87.4%, but the industrial development was uneven, and the level of centralized pollution prevention needed to be improved. These were the main factors restricting the development of circular economy in the park. Four aspects of measures, including optimization of industrial structure, improvement of circular economy industrial chain, promotion of efficient use of resources and energy, and promotion of environmental improvement, were put forward to enhance economic, resource and environmental benefits for the park.