Remediation agent for improving soda-alkalized soil

A repair agent and soil technology, applied in the field of soil repair, can solve the problems of single function, long soil improvement cycle, long-term residue, etc., and achieve the effect of improving soil physical and chemical properties, improving soil organic level, and enhancing crystal lattice fixation

Inactive Publication Date: 2016-09-28
HANSHAN COUNTY FENGHUA SUPPLY & MARKETING COOP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the soil remediation and improvement agents currently on the market have many defects: one is that the raw materials used contain artificially synthesized polymer compounds, which are not easy to decompose in the soil and remain for a long time, which has potential safety hazards; Soils, such as acidic and alkaline soils, have no effective targets for heavy metal pollution and lack of nutrients, resulting in low efficiency of improvement and restoration, or even counterproductive effects; third

Method used

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Embodiment Construction

[0018] A restoration agent for improving soda alkalized soil, made of the following raw materials in parts by weight (kg): straw ash 25, peat powder 7, calcium nitrate 1.7, flue-cured tobacco leaf powder 6, tourmaline powder 2, sage algae powder 2.4, Polyferric sulfate 1.6, polluted pig manure 74, papermaking black liquor 16, 10% nitric acid solution 4, alum slurry 14, appropriate amount of water.

[0019] The specific steps of the preparation method of the repairing agent for the improved soda alkalized soil are as follows:

[0020] (1) Mix straw ash, peat powder, and flue-cured tobacco leaf powder, add 1.5 times the total weight of water, mix well, retting and ferment for 3 weeks, crush and squeeze the fermented material to obtain fermented slag and fermented liquid for later use;

[0021] (2) Dried papermaking black liquor and put it into a calciner, calcined at 440°C for 80 minutes, took it out, mixed it with polluted pig manure and urine, added 3 times the total weight of...

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PUM

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Abstract

The invention discloses a remediation agent for improving soda-alkalized soil. The remediation agent is made from the following raw materials, by weight part, 25-27 of straw ash, 7-9 of peat powder, 1.7-2.0 of calcium nitrate, 6-7 of powdery flue-cured tobaccos, 2-3 of tourmalinite powder, 2.4-2.6 of sargassum thunbergii powder, 1.6-1.8 of polyferric sulfate, 74-76 of polluted pig dung and urine, 16-18 of a black liquor from papermaking, 4-5 of a nitric acid solution with the concentration being 10%, 14-15 of a thick alum liquid and a proper amount of water. According to characteristics of the soda-alkalized soil, the remediation agent contains multiple soluble components which can generate a large amount of cations through hydrolyzation during usage, and the cations can replace exchangeable sodium in the soil. Since the organic matters are good in adsorption and a polyhydroxyl complex is generated, colloid particles in the soil can be aggregated, thereby improving the physical and chemical properties of the soil, reducing the PH value of the soil, and improving the acid-base slow-release property of the soil. Therefore, the use value of the soil is increased.

Description

technical field [0001] The invention relates to the technical field of soil remediation, in particular to a remediation agent for improving soda alkalized soil. Background technique [0002] Soil improvement is aimed at the poor texture and structure of the soil, and corresponding measures are taken to improve soil properties and soil fertility. Soil improvement and restoration agent is an important application of soil improvement. However, the soil remediation and improvement agents currently on the market have many defects: one is that the raw materials used contain artificially synthesized polymer compounds, which are not easy to decompose in the soil and remain for a long time, which has potential safety hazards; Soils, such as acidic and alkaline soils, have no effective targets for heavy metal pollution and nutrient deficiencies, resulting in low efficiency of improvement and restoration, or even counterproductive effects; third, the long cycle and high cost of soil im...

Claims

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Application Information

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IPC IPC(8): C09K17/40
CPCC09K17/40C09K2109/00
Inventor 刘帆何光强牛涛
Owner HANSHAN COUNTY FENGHUA SUPPLY & MARKETING COOP CO LTD
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