| 摘要 |
PROBLEM TO BE SOLVED: To solve the following serious problems associated with hot spring waste water: since hot spring waste water having been used for bathing of hot spring includes hair, shaving waste, soap components, and human oil components and is therefore very dirty, or sometimes the hot spring waste water includes Legionella bacteria etc. to bring about a risk of infection, it is considered to cost much to remove them, and further some hot spring waste water can not be discharge to general rivers because of strongly acid components and many various components.SOLUTION: Hot spring water can be recycled while being kept at a temperature at which the hot spring water has been discharged from a bathtub, by inexpensively removing impurities, by preventing or removing scale due to calcium and removing components such as iron content ions, impeding recycling of hot spring water with the use of a magnetic water treatment device, and by cleaning impurities such as soap by the latest technology. Thus, small-scale power generation and greenhouse cultivation of farm products can be materialized utilizing natural heat energy as local production for local consumption utilizing local resources. |
