As the need for environmental protection and resource sustainability has increased in recent times, wastewater treatment has become increasingly important. In this paper, a group decision-making model for plans selection in wastewater treatment is proposed. In order to deal with uncertainties and multiple attributes in wastewater treatment, an intuitionistic fuzzy set is employed to evaluate wastewater treatment plans effectively. A distance measure is defined to obtain an objective weight measuring the expert’s judgment. More specifically, experts first use group decision-making on the various plans with an intuitionistic fuzzy set. Meanwhile, Due to the decision-makers psychological behavior, the prospect theory is applied. Next, the various plans are ranked by The Order of Preference by Similarity to Ideal Solution (TOPSIS) method and prospect theory. Finally, an illustrative example of wastewater treatment plans selection is used to verify the proposed model.

中文翻译：

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基于直觉模糊集的污水处理方案选择的群体决策模型

随着近年来对环境保护和资源可持续性的需求不断增加，废水处理变得越来越重要。本文提出了一种污水处理方案选择的群决策模型。为了处理污水处理中的不确定性和多属性，采用直觉模糊集来有效地评估污水处理计划。定义距离度量以获得衡量专家判断的客观权重。更具体地说，专家首先使用直觉模糊集对各种计划进行群体决策。同时，由于决策者的心理行为，应用前景理论。下一个，各种计划按照与理想解决方案相似的优先顺序（TOPSIS）方法和前景理论进行排名。最后，使用废水处理计划选择的说明性示例来验证所提出的模型。