| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for simply separating/recovering a humic material capable of being used as a fertilizer in agriculture, horticulture or the like, from mud existing in the bottom part of an aqueous system. SOLUTION: This method for separating/recovering the humic material is provided by mixing the mud existing in the bottom part of the aqueous system with water glass by 5-30% range weight ratio of the water glass, firing in 200-300°C temperature range to solidify the mixture, eluting the humic material by immersing the solidified material in water and obtaining an aqueous solution of the humic material. COPYRIGHT: (C)2007,JPO&INPIT |
