Environmentally-friendly composite scale inhibitor for saline-alkaline land, and preparation method thereof

Abstract

The invention discloses an environmentally-friendly composite scale inhibitor for saline-alkaline land. The composite scale inhibitor comprises, by weight, 70-85 parts of water, 48-62 parts of an organic acid-base buffer fertilizer, 15-27 parts of trisodium phosphate, 17-29 parts of zinc carbonate, 14-22 parts of 2-hydroxyphosphonoacetic acid, 11-15 parts of phosphino polyacrylic acid, 4-10 partsof sodium humate and 5-11 parts of sodium hypophosphite. The invention also discloses a preparation method of the environmentally-friendly composite scale inhibitor for saline-alkaline land. The environmentally-friendly composite scale inhibitor prepared from preparation raw materials and the preparation method can effectively neutralize the alkalinity of the soil to make the properties of the soil suitable for the growth of crops, and has the advantages of improved scale inhibition ability, increased scale dissolving performance, good permeability, great market values and great social values.

Description

technical field [0001] The invention relates to the technical field of scale inhibitors, in particular to an environment-friendly composite scale inhibitor for saline-alkali land and a preparation method thereof. Background technique [0002] The area of ​​saline-alkali land in my country is vast, and some saline-alkali lands have abundant water. However, due to the soil and air environment of saline-alkali land, during the process of agricultural planting and irrigation, when sprinkler irrigation equipment is used for irrigation, a large amount of water will be generated on the inner wall of the drainage and irrigation pipes during long-term use. Pipe scale, these pipe scales will reduce the effective cross-sectional area of ​​the pipeline, and the pipe scale not only increases the energy consumption of water delivery, but also triggers a chemical reaction with the pipe network water, resulting in turbidity and iron content in the pipe network water The increase of the amount...

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Problems solved by technology

[0004] During the use of the current antiscalant, the antiscaling performance on the inner wall of the pipeline is not obvious, and some scale will still remain on the inner wall of the pipeline. The effect of the antiscalant on reducing the corrosion rate of the sprinkler irrigation equipment in saline-alkali land is not obvious, and it will reduce the use of the pipeline When the antiscalant covers the pipeline, it will also cause corrosion on the inner wall of the pipeline. The residual amount of the antiscalant is large, which is not safe enough and needs to be improved urgently

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