Water is one of the most important natural resources for all living organisms including humans, animals, plants and other organisms. High-quality water is a major factor for human health, environment protection and sustainable development.
There are many WQE methods, and the results from different methods may differ from one another. Therefore, it is necessary to decide which is better.
Yang Won Chol, a researcher at the Faculty of Material Science and Technology, has proposed a novel integrated WQE approach combined with other various WQE methods, and illustrated and compared the effectiveness by applying it to two WQE cases.
First, he developed a novel integrated WQE approach combined with multiple WQE methods based on the weighted membership degree. It consists of the following steps: determining the WQGs of evaluation objects using multiple WQE methods, determining the priority weights of the individual methods, calculating the weighted membership degrees that evaluate objects in every grade/rank, and calculating final WQG indices of objects.
He applied it to two application cases. The results showed that the proposed approach had the maximum correlation and the minimum deviation, compared to other methods, which illustrated the validity of the proposed approach.
For more information, please refer to his paper “A New Integrated Water Quality Evaluation Approach Combined with Different Evaluation Methods Based on Weighted Membership Degree” in “Water Resources Management” (SCI).