本文详细介绍了印度河县膜软化厂，包括运行和维护成本（能源、化学品、膜更换、劳动力、工厂利用率、混合率）和建设成本。

A description of the Indian River County membrane softening plant, including operation and maintenance costs (energy, chemicals, membrane replacement, labor, plant utilization, blend rate), and construction costs are detailed in this paper.