| 摘要 |
A method of purifying water for fish-breeding, according to which the water is optionally subjected to sedimentation, is subjected to sand filtration and to oxygenization, and to which the water also is subjected to a treatment with an ion exchanger mixture consisting of 40 to 70 per cent clinoptilolite, 30 to 15 per cent anion exchanger and 30 to 15 per cent cation exchanger, the two later being of cellulose type. The invention relates furthermnore to the ion exchanger mixture mentioned. |
