| Summary: | 碩士 === 清雲科技大學 === 機械工程研究所 === 95 === An example of the treatment of sewage (wasted water) of a medium-sized hospital is presented in the thesis to illuminate the grey theory and grey relation. This sewage farm adopts the normal act to purify the wasted water pond in order to reach the legal reguirement of the releasing standard. Therefore, this research collects data in terms of month for a long period of 4 years. The data contain the amount of the hospital sewage water, the amount of electricity used, the number of the patients staying in the hospital, the number of patients visiting the hospital, the number of the staff of hospital, the amount of the wasted mud, and the PH values of wasted water. The research is trying to predict these values respectively for the 5th year in the future by using gray theory. The grey relation is also adopted to identify the main factors in the order among the data investigated.
The research uses the traditional GM(1,1) of grey theory to calculate the data mentioned above and also to predict their tendency. The grey relational operation is also adopted to identify the priority of the factors which may provide a significant basis to the environmental protection for the planning of the future new sewage farm of hospital.
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