超音波物理震盪效應抑制結垢物生成之結果顯示，超音波震盪處理系統適合於環境參數在低溫及低流速時，其物理性震盪效應可增加陰陽離子以離子態存在，因而產生穩定之抑制機制。因此，本研究所使用之超音波功率及頻率，受溫度及流速之影響，其震盪處理效應於低溫及低流速下較具抑制成效；然於高溫及高流速狀態時，其抑制效益較不明顯，此項結論仍需持續之研究及探討。 There were three types of hot spring water in Taiwan, including chlorine salt type, carbonate type and sulfate salt type. When the hot spring water was delivered by pipeline system, the carbonate was easily precipitated in the pipeline and storage system, which considered as an essential problem for the owners of hot spring industry. These scaling problems corroded and damaged the pipes, leading the potential explosion problems. The major treatment methods were adding the chemical agents that contained the phosphorous and nitrate to inhibit the scaling, which caused the serious eutrophication problems in our natural environment. Replacing the pipes frequently was considered as a way to solve problems and free for chemical pollutants. However, the maintenance cost was huge and the wasted pipes were considered as an environmental issue. Therefore, in order to solve scaling problems with green technologies, this study applied ultrasound energy to the simulation process of hot spring delivery system. The increase/decrease of pH values were determined and the before/after concentrations of calcium ion were analyzed. Thus, the potential formation mechanisms of scaling in hot spring water and the performance of ultrasound assisted inhibition process were carefully examined.
The performance of ultrasound assisted inhibition process: The results indicated that ultrasound assisted inhibition process of scaling problem was depended with flow rate and temperature. When the control system was under lower flow rate and temperature, the performance functioned well in inhibiting the scaling problems. However, the performance was not obvious under higher flow rate and temperature. The experimental results of this study are insufficient to conclude the optimization control conditions of ultrasound assisted inhibition process, which needs further researches and studies to fulfill the requirements.