河流水质模型(RWQM1)介绍及实例分析

Introduction and case studies of river water quality model No.1(RWQM1)

以河流水质为目标对城市污水系统进行集成管理,是改善河流水质、保护生态环境的有效途径。介绍了国际水协会河流水质1号模型(RWQM1),该模型采用与标准活性污泥模型类似的描述方式,用化学需氧量作为有机物度量描述有机物与营养物,选择表征碳、氢、氧、氮、磷循环的水质成分和模型状态变量,描述河流中好氧与缺氧条件下物质的循环变化过程。该模型可直接与活性污泥模型相连接,用于集成城市污水处理系统的设计规划与监视控制。

It is an effective approach to improve river water quality and to protect ecological environment by integrated management of urban wastewater with the view of better water quality. The river water quality model No.1 (RWQM1) developed by the International Water Association (IWA) were introduced, which was described like the standard Activated Sludge Model (ASM). Organic matter and nutrients were characterized by COD. Water quality constituents and model state variables characterizing circling of carbon, hydrogen, oxygen, nitrogen, and phosphorous were selected in the model to describe the cycling process under aerobic and anaerobic conditions. Connected directly with ASMs, the model can be used in the decision, planning, monitoring of the integrated urban wastewater system.