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Remediation agent for cadmium pollution of rice planting soil and preparation method and device thereof

A technology of cadmium pollution and repair agent, which is applied in the field of soil pollution control, can solve the problems of single repair effect, soil secondary pollution, high cost of raw materials, etc., and achieve the effect of simple extraction steps, increased growth speed, and increased juice yield

Active Publication Date: 2021-03-26
NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The production of current soil remediation agents is relatively complicated, the cost of raw materials is high, and the addition of a large number of chemical elements leads to secondary pollution of the soil, and most of the compost materials for the preparation of soil remediation agents are purchased off-the-shelf, and its repair effect is single. Soil remediation is particularly ineffective

Method used

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  • Remediation agent for cadmium pollution of rice planting soil and preparation method and device thereof
  • Remediation agent for cadmium pollution of rice planting soil and preparation method and device thereof
  • Remediation agent for cadmium pollution of rice planting soil and preparation method and device thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] The repair agent for cadmium pollution in rice planting soil mainly includes the following raw materials in parts by weight: 6 parts of indole acetic acid, 4 parts of gibberellin, 5 parts of forchlorfenuron, 10 parts of shrimp and crab shells, 35 parts of fertilizer, wild amaranth 8 parts, 9 parts of saponin solution, 8 parts of tartaric acid, 10 parts of regulating bacteria.

[0038] The preparation method of the remediation agent for cadmium pollution in rice planting soil mainly includes the following steps:

[0039] S1. Raw material pretreatment

[0040] Put the shrimp and crab shells into the shrimp and crab shell processing mechanism 1 for processing: soak and clean the shrimp and crab shells in hydrochloric acid solution to remove the soil and sundries on the surface, put the cleaned shrimp and crab shells into the freezer, and set the freezing temperature Freeze at -35°C for 30 minutes, put the frozen shrimp and crab shells into a grinder for grinding, and grin...

Embodiment 2

[0059] The difference from Example 1 is that

[0060] The repairing agent for cadmium pollution in rice planting soil mainly includes the following raw materials in parts by weight: 7 parts of indole acetic acid, 5 parts of gibberellin, 7 parts of forchlorfenuron, 12 parts of shrimp and crab shells, 45 parts of fertilizer, wild amaranth 7 parts, 8 parts of saponin solution, 7 parts of tartaric acid, 9 parts of regulating bacteria.

[0061] The preparation method of the remediation agent for cadmium pollution in rice planting soil mainly includes the following steps:

[0062] S1. Raw material pretreatment

[0063] Put the shrimp and crab shells into the shrimp and crab shell processing mechanism 1 for processing: soak and clean the shrimp and crab shells in hydrochloric acid solution to remove the soil and sundries on the surface, put the cleaned shrimp and crab shells into the freezer, and set the freezing temperature Freeze at -30°C for 30 minutes, put the frozen shrimp and...

Embodiment 3

[0071] The difference from Example 2 is that

[0072] The repair agent for cadmium pollution in rice planting soil mainly includes the following raw materials in parts by weight: 8 parts of indole acetic acid, 6 parts of gibberellin, 8 parts of forchlorfenuron, 13 parts of shrimp and crab shells, 55 parts of fertilizer, wild amaranth 6 parts, 7 parts of saponin solution, 6 parts of tartaric acid, 8 parts of regulating bacteria.

[0073] S1. Raw material pretreatment

[0074] Put the shrimp and crab shells into the shrimp and crab shell processing mechanism 1 for processing: soak and clean the shrimp and crab shells in hydrochloric acid solution to remove the soil and sundries on the surface, put the cleaned shrimp and crab shells into the freezer, and set the freezing temperature Freeze at -35°C for 30 minutes, put the frozen shrimp and crab shells into a grinder for grinding, and grind out 85-mesh shrimp and crab shell powder, dry the ground shrimp and crab shell powder in a...

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Abstract

The invention discloses a remediation agent for cadmium pollution of rice planting soil. The remediation agent is mainly prepared from the following raw materials in parts by weight: 6-8 parts of indoleacetic acid, 4-6 parts of gibberellin, 5-8 parts of forchlorfenuron, 10-13 parts of shrimp and crab shells, 35-55 parts of fertilizer, 6-8 parts of wild amaranth, 7-9 parts of saponin solution, 6-8parts of lithoponic acid and 8-10 parts of regulating bacteria. Water-soluble carboxylated chitosan is prepared by putting shrimp and crab shells into the shrimp and crab shell treatment mechanism fortreatment, an extracting solution is obtained through the wild amaranth treatment mechanism, the fertilizer is flatly laid in a fermentation tank in a layered mode, specific strains and repairing components are placed between all layers of the fertilizer, the fertilizer is subjected to fermentation treatment, the heteroauxin, the gibberellin and the forchlorfenuron are added into the fermented mixed fertilizer, so that the repaired soil is more beneficial to growth of rice, and the method is simple to operate, low in cost, free of secondary pollution to the soil and suitable for wide popularization.

Description

technical field [0001] The invention relates to the technical field of soil pollution control, in particular to a restoration agent for cadmium-polluted rice planting soil, a preparation method and a device thereof. Background technique [0002] The soil is originally a natural shelter and purification treatment place for various wastes. The soil accepts pollutants, which does not mean that the soil is polluted. Only when the soil contains too many pollutants, it affects and exceeds the self-purification ability of the soil. , thus producing harmful hygienic and epidemiological effects, which indicate that the soil has been polluted. There are many reasons for soil pollution, such as industrial sludge, agricultural garbage, sewage irrigation, pollutant deposition in the atmosphere, heavy use of mineral fertilizers and pesticides containing heavy metals, etc. Cadmium (Cd) is highly mobile, highly toxic, and easily Absorbed and accumulated by crops, it is one of the most toxi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C05G3/80C05F17/20C05F17/964C09K17/40C09K101/00
CPCC05G3/80C05C11/00C05F17/20C05F17/964C09K17/40C09K2101/00C05F1/005C05F11/00C05F11/08C05F11/10Y02W30/40
Inventor 郑丽萍王国庆杜俊洋
Owner NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA