In-situ soil remediation agent and application

Abstract

The invention relates to the technical field of soil remediation, in particular to an in-situ soil remediation agent which is prepared from the following raw materials in parts by weight: 5-20 parts of calcium hydroxide, 35-45 parts of sodium acetate trihydrate, 3-8 parts of a soil penetrating agent and 100-150 parts of a water-soluble curing agent. The invention further provides application of the in-situ soil remediation agent in remediation of acid soil. The acid soil is subjected to in-situ remediation in a spraying and permeating mode, the spraying mode is that a remediation agent is more uniformly distributed on the soil, the soil can be remedied from top to bottom in a permeating mode, the acid remediation of the soil is more homogeneous and comprehensive, the remediation effect is faster, and the remediation is more thorough.

Description

technical field [0001] The invention relates to the technical field of soil remediation, in particular to an in-situ soil remediation agent and its application. Background technique [0002] In the soil, when the pH value is lower than 6, it is called acidic soil. On the one hand, the acidification of the soil means that elements such as calcium, magnesium and potassium are easily replaced and lost in the acidic soil. Causes the effectiveness of soil nutrients to decrease. On the other hand, acid soil contains more hydrogen and sodium, but lacks calcium, which makes it difficult to form a good soil structure, which is not conducive to crop growth, and also inhibits the activities of soil microorganisms, thereby affecting nitrogen. And the transformation and supply of other nutrients is not conducive to the growth and development of crops. [0003] In order to remediate soil acidity, many remediators and methods for remediation of acidic soil have also been proposed at this ...

AI Technical Summary

Problems solved by technology

Chinese patent CN202010160897.X discloses the preparation method of acidic soil remediation agent, the obtained soil remediation agent and its application, the application of acidic soil remediation agent in acidic soil remediation: the acidic soil remediation agent is spread on the The soil surface, and then the cultivated land, are all applied in the way of repairing the acidic soil by spreading the repair agent with fixed particles and then rotary tillage. This application method has the following shortcomings: 1. There is uneven application of the repair agent, It is easy to cause insufficient spreading in some areas, resulting in insufficient repair, and excessive spreading in some areas, resulting in excessive repair and alkaline soil

2. It is necessary to mix the restoration agent with the soil by means of rotary tillage to realize the restoration of soil acidity, which requires a lot of manpower and material resources. In the mixing process, there is also the problem of uneven mixing of the restoration agent and soil. Rotary tillage Finally, the restorative agent is required to permeate and diffuse slowly, and the soil around the repair agent is slowly repaired, making the acidic soil repair effect slow