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Soil heavy metal adsorbent

A heavy metal and adsorbent technology, applied in soil conditioning materials, restoration of polluted soil, organic fertilizers, etc., can solve problems such as insignificant treatment effect, and achieve the effects of good adsorption effect, simple use method, and simple preparation method.

Inactive Publication Date: 2017-09-22
防城港市泽农工程设计活动有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide a kind of soil heavy metal adsorbent, thereby overcome the shortcoming that soil is polluted by heavy metal, and treatment effect is not remarkable

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A soil heavy metal adsorbent, in parts by weight, mainly made of the following raw materials: 45 parts of peat, 17 parts of biochar, 9 parts of carrageenan, 23 parts of seaweed, 17 parts of kaolin, 12 parts of bentonite, tributyl citrate 6 parts of esters, 12 parts of humic acid, 12 parts of shell powder and 29 parts of filter mud.

[0021] A preparation method of soil heavy metal adsorbent, comprising the following steps:

[0022] (1) Mix peat, seaweed, humic acid, filter mud and aerobic fermentation bacteria evenly. The aerobic fermentation bacteria is VT fermentation bacteria. The dosage is 0.07% of the seaweed quality. 15 days to obtain a mixed ferment;

[0023] (2) uniformly mixing the mixed fermented product prepared in step (1), biochar, carrageenan, kaolin, bentonite, tributyl citrate, and shell powder to obtain a soil heavy metal adsorbent.

[0024] Use the soil heavy metal adsorbent in the field. The method of use includes the following steps: apply 450 kilo...

Embodiment 2

[0027] A soil heavy metal adsorbent, in parts by weight, mainly made of the following raw materials: 33 parts of peat, 12 parts of biochar, 5 parts of carrageenan, 27 parts of seaweed, 25 parts of kaolin, 9 parts of bentonite, tributyl citrate 3 parts of ester, 15 parts of humic acid, 5 parts of shell powder and 23 parts of filter mud.

[0028] A preparation method of soil heavy metal adsorbent, comprising the following steps:

[0029] (1) Mix peat, seaweed, humic acid, filter mud and aerobic fermentation bacteria evenly. The aerobic fermentation bacteria is VT fermentation bacteria, and its dosage is 0.03% of the seaweed quality. 20 days to obtain a mixed ferment;

[0030] (2) uniformly mixing the mixed fermented product prepared in step (1), biochar, carrageenan, kaolin, bentonite, tributyl citrate, and shell powder to obtain a soil heavy metal adsorbent.

[0031] Use the soil heavy metal adsorbent in the field. The method of use includes the following steps: apply 400 kil...

Embodiment 3

[0034] A soil heavy metal adsorbent, which is mainly made of the following raw materials in parts by weight: 55 parts of peat, 25 parts of biochar, 5 parts of carrageenan, 17 parts of seaweed, 12 parts of kaolin, 17 parts of bentonite, tributyl citrate 9 parts of esters, 10 parts of humic acid, 18 parts of shell powder and 35 parts of filter mud.

[0035] A preparation method of soil heavy metal adsorbent, comprising the following steps:

[0036] (1) Mix peat, seaweed, humic acid, filter mud and aerobic fermentation bacteria evenly. The aerobic fermentation bacteria is VT fermentation bacteria. The dosage is 0.1% of the seaweed mass. 10 days to obtain mixed fermented product;

[0037] (2) uniformly mixing the mixed fermented product prepared in step (1), biochar, carrageenan, kaolin, bentonite, tributyl citrate, and shell powder to obtain a soil heavy metal adsorbent.

[0038] Use the soil heavy metal adsorbent in the field. The method of use includes the following steps: ap...

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Abstract

The invention discloses a soil heavy metal adsorbent. The soil heavy metal adsorbent is mainly prepared from the following raw materials: peat, biochar, carrageenan, seaweed, kaolin, bentonite, tributyl citrate, humic acid, shell powder and filter mud. After the soil heavy metal adsorbent is used for adsorbing heavy metal polluted soil, a good adsorbing effect is achieved. Heavy metal elements in soil can be adsorbed completely and are prevented from participating in cation exchange, and adsorbed heavy metals are exchanged into a soil solution, so that heavy metals which can be absorbed by plants in the soil are reduced greatly to an allowable range; meanwhile, the soil hardening phenomenon is avoided, and the soil is softened and is unlikely to harden. Moreover, the soil heavy metal adsorbent is simple in preparation method, and is convenient to produce. A using method of the soil heavy metal adsorbent is simple, and comprises the following steps: scattering the adsorbent in a field; irrigating the field and ploughing with a tractor to blend the adsorbent into the soil; standing for a certain while after blending; and reacting the adsorbent with heavy metals in the field in order to remove free heavy metal ions in the field.

Description

technical field [0001] The invention relates to the field of heavy metal treatment, in particular to a soil heavy metal adsorbent. Background technique [0002] Reservoir is one of the widely used engineering measures for flood control in our country. A comprehensive utilization reservoir capable of regulating and storing floods shall be built at an appropriate location in the upper reaches of the flood control area, and the storage capacity of the reservoirs shall be used to store floods and reduce the peak flow of floods entering the downstream rivers, thereby achieving the purpose of reducing flood disasters. There are two different ways for the reservoir to regulate the flood, one for flood detention and the other for flood storage. [0003] Heavy metals refer to metals with a specific gravity equal to or greater than 5.0, such as Fe, Mn, Zn, Cd, Hg, Ni, Co, etc.; As is a metalloid, but due to its chemical properties and environmental behavior are similar to heavy metal...

Claims

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Application Information

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IPC IPC(8): C09K17/40B09C1/08C09K101/00
CPCC09K17/40B09C1/08C09K2101/00
Inventor 李梅英陆俊嘉
Owner 防城港市泽农工程设计活动有限公司
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