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Paddy field heavy metal adsorbent

A heavy metal and adsorbent technology, applied in organic fertilizers, fertilizer mixtures, chemical instruments and methods, etc., can solve problems such as insignificant treatment effect, achieve good adsorption effect, simple preparation method, and solve the effect of soil compaction

Inactive Publication Date: 2017-11-24
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 heavy metal adsorbent for paddy fields, so as to overcome the shortcomings that the soil is polluted by heavy metals and the treatment effect is not significant

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] A paddy field heavy metal adsorbent, which is mainly made of the following raw materials in parts by weight: 45 parts of peat, 17 parts of biochar, 9 parts of distiller's grains, 23 parts of seaweed, 17 parts of bentonite, 12 parts of volcanic lime, and 6 parts of citric acid , 12 parts of humic acid, 12 parts of shell powder, 8 parts of phosphate rock powder, 13 parts of diatomaceous earth, 17 parts of furfural residue and 29 parts of filter mud.

[0021] A preparation method for paddy field heavy metal adsorbent, comprising the following steps:

[0022] (1) Mix peat, distiller's grains, seaweed, humic acid, filter mud and aerobic fermentation bacteria evenly. The aerobic fermentation bacteria is VT fermentation bacteria. The dosage is 0.06% of the seaweed mass. , fermented for 16 days to obtain a mixed fermented product;

[0023] (2) uniformly mix the mixed fermented product prepared in step (1) with biochar, bentonite, volcanic lime, citric acid, shell powder, phosp...

Embodiment 2

[0027] A paddy field heavy metal adsorbent, mainly made of the following raw materials in parts by weight: 33 parts of peat, 25 parts of biochar, 15 parts of distiller's grains, 17 parts of seaweed, 25 parts of bentonite, 9 parts of volcanic lime, and 3 parts of citric acid , 10 parts of humic acid, 18 parts of shell powder, 5 parts of phosphate rock powder, 9 parts of diatomaceous earth, 24 parts of furfural residue and 23 parts of filter mud.

[0028] A preparation method for paddy field heavy metal adsorbent, comprising the following steps:

[0029] (1) Mix peat, distiller's grains, seaweed, humic acid, filter mud and aerobic fermentation bacteria evenly. The aerobic fermentation bacteria is VT fermentation bacteria. The dosage is 0.03% of the seaweed mass. , fermented for 20 days to obtain a mixed fermented product;

[0030] (2) uniformly mix the mixed fermented product prepared in step (1) with biochar, bentonite, volcanic lime, citric acid, shell powder, phosphate rock ...

Embodiment 3

[0034] A paddy field heavy metal adsorbent, mainly made of the following raw materials in parts by weight: 55 parts of peat, 12 parts of biochar, 5 parts of distiller's grains, 27 parts of seaweed, 12 parts of bentonite, 17 parts of volcanic lime, and 9 parts of citric acid , 15 parts of humic acid, 5 parts of shell powder, 14 parts of phosphate rock powder, 18 parts of diatomaceous earth, 11 parts of furfural residue and 35 parts of filter mud.

[0035] A preparation method for paddy field heavy metal adsorbent, comprising the following steps:

[0036] (1) Mix peat, distiller's grains, 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. , fermented for 10 days to obtain a mixed fermented product;

[0037] (2) uniformly mix the mixed fermented product prepared in step (1) with biochar, bentonite, volcanic lime, citric acid, shell powder, phosphate rock ...

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PUM

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Abstract

The invention discloses a paddy field heavy metal adsorbent, which is mainly prepared from the following raw materials: turf, biochar, vinasse, seaweed, bentonite, pelelith ash, citric acid, humic acid, shell powder, ground phosphate rock, kieselguhr, furfural residue and filtrated mud. According to the paddy field heavy metal adsorbent disclosed by the invention, after heavy metal contaminated soil is subjected to adsorption processing, the adsorption effect of the heavy metal adsorbent is good. Heavy metal elements in soil can be thoroughly powerfully adsorbed, the heavy metal elements do not participate in cation exchange, adsorbed heavy metal is exchanged into soil solution, the amount of heavy metals which can be adsorbed by plants in the soil can be reduced into an allowable range, meanwhile, a soil hardening phenomenon is solved, and the soil becomes soft and is unlikely to harden. A use method is simple, the adsorbent is dispersed in fields, water is added into the fields, and then, a tractor ploughs to mix the paddy field heavy metal adsorbent into soil; after stirring, the mixture stands for a period of time, and the adsorbent and the heavy metals in the fields react to adsorb the heavy metals so as to remove free heavy metal ions in the fields.

Description

technical field [0001] The invention relates to the field of heavy metal treatment, in particular to a paddy field 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 heav...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40B09C1/08C09K101/00
CPCC09K17/40B09C1/08C09K2101/00
Inventor 陆俊嘉蓝贤波
Owner 防城港市泽农工程设计活动有限公司
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