Application of grey relational theory on multi-index water quality analysis for Xinhai Bridge constructed wetlands

• Main Authors: Yu-Ji Li, 李煜基
• Other Authors: Jin-Hwua Chen
• Format: Others
• Language: zh-TW
• Published: 2012
• Online Access: http://ndltd.ncl.edu.tw/handle/28303442746106663734

碩士 === 國立屏東科技大學 === 土木工程系所 === 100 === The constructed wetlands were not general that made the data of water quality observe unchangeably, it is difficult to use statistical analysis. Limited data of water quality can be analyzed by grey relations, and be compared with similarity of parameters in grey system grey relational theory. In this paper, using grey relations and weighting to analysis the parameters of constructed which are concentration of Hydrogen ion concentration pH, Temperature Temp, Conductivity EC, Suspended solids SS and Biochemical oxygen demand BOD in Taipei city Xinhai, each for 2009 year and 2010 year. The result shows that SS to pH is the most influential, pH to Temperature is the most influential, pH to BOD to EC is the most influential, Temperature to SS is the most influential and SS to BOD is the most influential. In this study, the result can provide for planning the constructed wetlands of Xinhai to improve water quality.