Watervale Systems Pty Ltd, PO Box 318, Potts Point, NSW 1335, Australia.
Water Res. 2011 Oct 15;45(16):4896-908. doi: 10.1016/j.watres.2011.06.032. Epub 2011 Jul 2.
Maintaining the chlorine residual is a major disinfection goal for many water distribution systems. A suitable general chlorine bulk-decay model is required for simulation of chlorine profiles in networks to assist disinfection planning/management efficiently. The first-order model is unsuitable due to inaccuracy and inability to represent rechlorination. Three potentially suitable, simple, reactant models were compared. The single-reactant model was found to be unsuitable, as it was inaccurate when restricted to using a single set of invariant parameters. The two-reactant model was more suitable than the variable-rate-coefficient model, although both models were accurate under the same restriction. The two-reactant model was then calibrated against datasets consisting of multiple decay tests for five distinctly different waters. It accurately predicted data reserved for validation over the chlorine concentration range of 0-6 mg/L, using a single set of invariant parameters, and is therefore the simplest, generally suitable model for simulating chlorine profiles in distribution system networks.
保持余氯是许多配水系统的主要消毒目标。需要合适的通用氯整体衰减模型来模拟管网中的氯分布，以有效地协助消毒规划/管理。由于不准确且无法表示再氯化，一阶模型不适用。比较了三个潜在合适的简单反应物模型。单反应物模型被发现不合适，因为当限制使用一组不变参数时，它不准确。双反应物模型比变率系数模型更合适，尽管在相同的限制下，这两种模型都很准确。然后，双反应物模型使用多个衰减测试的数据集进行了校准，这些数据集针对五种截然不同的水进行。它使用一组不变参数准确地预测了氯浓度范围为 0-6 mg/L 的保留数据，因此是模拟分配系统网络中氯分布的最简单、最通用的模型。
