Acidic multifunctional soil improver and preparation method thereof
A soil improvement and multi-functional technology, applied in the field of environmental restoration, can solve problems such as single and limited improvement effect, short duration, limited reserves, etc., achieve the effect of improving mechanical structure and properties, increasing soil organic matter and fertility, and solving degradation problems
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Example Embodiment
[0024] Embodiment 1: an acidic multifunctional soil modifier, the preparation steps are as follows:
[0025] (1) according to mass fraction, after 20 parts of concentrated hydrochloric acid and 80 parts of distilled water are diluted on site in proportion, add 15 parts of ferrous sulfate heptahydrate and 2 parts of potassium permanganate successively to mix and dissolve in a three-necked flask, be warming up to 45 After the temperature is Celsius, the constant temperature is 1h;
[0026] (2) at normal temperature, after 100 parts of sodium lignosulfonates are dissolved in 70 parts of distilled water, add 1 part of tributyl phosphate, and add the solution of step (1) after stirring;
[0027] (3) Adjust the pH of the mixed solution to 4.0 with 20% NaOH, heat up to 75 degrees Celsius, add 10 parts of sodium phosphate after maintaining for 40 minutes, cool to room temperature, and seal it for storage.
Example Embodiment
[0028] Embodiment 2: an acidic multifunctional soil modifier, the preparation steps are as follows:
[0029] (1) according to mass fraction, after 20 parts of concentrated hydrochloric acid and 85 parts of distilled water are diluted on site in proportion, add 15 parts of ferrous sulfate heptahydrate and 2.5 parts of potassium permanganate successively to mix and dissolve in the three-necked flask, be warming up to 45 After the temperature is Celsius, the constant temperature is 1h;
[0030] (2) at normal temperature, after 100 parts of sodium lignosulfonates are dissolved in 75 parts of distilled water, add 1.5 parts of polyoxypropylene glycerol ether, and add the solution of step (1) after stirring;
[0031] (3) Adjust the pH of the mixed solution to 4.5 with 20% NaOH, heat up to 75 degrees Celsius, add 15 parts of sodium tripolyphosphate after maintaining for 40 min, cool to room temperature, and seal it for storage.
Example Embodiment
[0032] Embodiment 3: an acidic multifunctional soil modifier, the preparation steps are as follows:
[0033] (1) according to mass fraction, after 20 parts of concentrated hydrochloric acid and 90 parts of distilled water are diluted on site in proportion, add 20 parts of ferrous sulfate heptahydrate and 3 parts of potassium permanganate successively to mix and dissolve in a three-necked flask, be warming up to 45 After the temperature is Celsius, the constant temperature is 1h;
[0034] (2) at normal temperature, after 100 parts of sodium lignosulfonates are dissolved in 80 parts of distilled water, 2 parts of polydimethylsiloxane are added, and the solution of step (1) is added after stirring;
[0035] (3) Adjust the pH of the mixed solution to 4.5 with 20% NaOH, heat up to 75 degrees Celsius, add 20 parts of sodium pyrophosphate after maintaining for 40 min, cool to room temperature, and seal it for storage.
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