Preparation of calcium-base polysulfide repairing agent and application of calcium-base polysulfide repairing agent to polluted environment repairing
A polysulfide, polluting environment technology, applied in the restoration of polluted soil, polluted groundwater/leachate treatment, water pollutants, etc., to achieve the effect of increasing stability, easy availability of raw materials, and less consumption
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[0042] In the embodiment of the preparation method of a calcium-based polysulfide restoration agent of the present invention, quicklime and elemental sulfur are first prepared into suspension solutions, and then the sulfur solution is slowly added to lime water, and the reaction is carried out under stirring conditions to obtain calcium-based polysulfide repair agent. Sulfide repair agent. Concrete preparation method comprises the following steps:
[0043] (1) Prepare quicklime, elemental sulfur, and water as raw materials in a certain proportion;
[0044] (2) Use a small amount of hot water to adjust the elemental sulfur into a paste-like sulfur slurry, and stir evenly;
[0045] (3) Put quicklime in a beaker, dissolve it with a small amount of water, make a paste, add enough water, and heat on an electric furnace;
[0046] (4) Slowly pour the pre-adjusted sulfur slurry into the lime water from the side of the beaker, stir while pouring, and record the water level;
[0047]...
Embodiment 1
[0054] Formula and material selection: Prepared according to the ratio of quicklime, sulfur powder and water at 1:2:10 (mass: mass: volume), the quicklime is made of calcium oxide reagent, the elemental sulfur is sulfur powder, and the water is deionized water.
[0055] The preparation steps are:
[0056] (1) Mix the sulfur powder with a small amount of water (hot water) to make a paste-like sulfur slurry, and the more uniform the stirring, the better;
[0057] (2) Put the quicklime into the beaker, dissolve it with a small amount of water (the lime dissolves more slowly when the water is too much over the lime), make a paste, pour it into the beaker and add enough water (wash and dissolve the quicklime beaker), and then heated on an electric stove;
[0058] (3) When the milk of lime is close to boiling, slowly pour the sulfur slurry adjusted in advance from the edge of the beaker into it (rinse the beaker), stir while pouring, and record the water level. Prevent the splashe...
Embodiment 2
[0063] Formula and material selection: Prepared according to the ratio of quicklime, sulfur powder and water at 1:2:10 (mass: mass: volume), the quicklime is made of calcium oxide reagent, the elemental sulfur is sulfur powder, and the water is deionized water.
[0064] The preparation steps are:
[0065] (1) Mix the sulfur powder with a small amount of water (hot water) to make a paste-like sulfur slurry, and the more uniform the stirring, the better;
[0066] (2) Put the quicklime into the beaker, dissolve it with a small amount of water (the lime dissolves more slowly when the water is too much over the lime), make a paste, pour it into the beaker and add enough water (wash and dissolve the quicklime beaker), and then heated on an electric stove;
[0067] (3) When the milk of lime is close to boiling, slowly pour the sulfur slurry adjusted in advance from the edge of the beaker into it (rinse the beaker), stir while pouring, and record the water level. Prevent the splashe...
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