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    • 18. 发明专利
    • Method for ecological and economic treatment and after care of acidic bodies of water, comprises supplying starting materials in suspended form over distribution arrangements, into the water to be treated
    • DE102008029643A1
    • 2009-12-24
    • DE102008029643
    • 2008-06-23
    • RABE WOLFGANGSCHOLZ GUENTER
    • RABE WOLFGANGSCHOLZ GUENTER
    • C02F1/66
    • The method comprises supplying a mixture of burned lime products and/or unloaded burned lime product with portion of calcium- and/or magnesium oxide and/or calcium and/or magnesium hydroxide with acid fluid flux with a pH value of = 4, and in a portion of 1-50% of the total quantity of the starting material and unburned lime product with a portion of calcium and/or magnesium carbonate, in a portion of 50-99% of the total quantity of the starting material in the wastewater to be treated up to the pH value exceeds a limit of 5.5-8.3. The method comprises supplying starting materials in suspended form into acidic bodies of water over distribution arrangements and supplying a mixture of burned lime products and/or unloaded burned lime product with portion of calcium- and/or magnesium oxide and/or calcium and/or magnesium hydroxide with acid fluid flux with a pH value of = 4, in a grain size of less than 1 mm with greater than 50% of the starting material, and in a portion of 1-50% of the total quantity of the starting material and unburned lime product with a portion of calcium and/or magnesium carbonate, in a grain size of less than 0.1 mm with greater than 50% of the starting material, in a portion of 50-99% of the total quantity of the starting material in the wastewater to be treated up to the pH value exceeds a limit of 5.5-8.3. The portion of burned lime product and/or unloaded burned lime product is adjusted in the total quantity of the starting material dependent upon the exit-pH-value in which the portion in the pH value of 4-6 is higher than in the pH value of greater than 6-8.3. The portion of burned lime product and/or unloaded burned lime product are adjusted in the total quantity of the starting material in the pH value of 4-6 in 10-50% and in the pH value of greater than 6-8.3 in 1-30% of the total quantity of the starting material. The burned and/or unburned product separated as suspension is recycled and subjected directly into the water or into the water for mixing before its use.