| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a simple and efficient method in which the phosphorus component contained by high-concentration in wastewater and sewage is separated and collected simply and efficiently, and by the result, the phosphorus component concentration in the wastewater and sewage is reduced to about one severalth. <P>SOLUTION: The method comprises such that an alkaline electrolytic water is made to act in the phosphorus component containing wastewater and sewage, thereby the phosphorus component is made to deposit as potassium dihydrogenphosphate and is separated and collected. A precipitate which makes the potassium dihydrogenphosphate obtained by the separation and collection a principal component is disclosed. In addition, a ferroelectric, piezoelectric element, electrooptical element, laser beam harmonic generating element, battery material or fertilizer which includes the potassium dihydrogenphosphate extracted from the precipitate as one component is disclosed. <P>COPYRIGHT: (C)2012,JPO&INPIT |
