Industrial parks (IPs) play a significant role in the context of economic growth as well as urban and regional development strategies. They rely on the availability of factors of production and an enabling environment, which also includes the legal framework and economic conditions. The availability of water is essential for the operation and expansion of IPs. Sustainable, efficient and reliable water supply is crucial for IPs and the companies located in the IPs. Reusing wastewater to reduce the amount of drinking or process water necessary for production requires economically viable treatment processes. From an economic point of view, it is important to compare the costs of different treatment trains and to ensure that technical solutions generate an economic benefit for the operators of the IPs. Based on data from municipal wastewater treatment, the authors derive cost functions for individual treatment processes and develop tools for a modular economic assessment of water reuse in IPs.

工业园区在经济增长以及城市和区域发展战略中发挥着重要作用。它们依赖于生产要素和有利环境的可用性，其中还包括法律框架和经济条件。水的供应对于IP的运营和扩展至关重要。可持续，高效和可靠的供水对于IP和IP中的公司至关重要。再利用废水以减少生产所需的饮用水或工艺用水量需要经济可行的处理工艺。从经济角度来看，重要的是比较不同处理方案的成本，并确保技术解决方案为IP运营商带来经济利益。根据市政废水处理的数据，