Saline-alkali soil heavy metal ion remover and preparation method thereof

A technology of heavy metal ions and saline-alkali land, applied in biochemical equipment and methods, soil conditioning materials, chemical instruments and methods, etc., can solve the problems of weak adsorption capacity of adsorbent substances, high cost of physical repair, high repair cost, etc., to reduce water evaporation speed, improve air permeability and water permeability, good adsorption effect

Inactive Publication Date: 2020-06-26
WEIFANG YOURONG IND
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The treatment technologies for heavy metal pollution in saline-alkali soil mainly include phytoremediation, microbial remediation, chemical remediation, and physical remediation. Among them, phytoremediation technology has the advantages of low cost and environmental protection, but it takes a long time to repair; most of the microbial remediation is only for surrounding areas. The degradation of heavy metals does not consider reducing the absorption of crops, and the simple microbial restoration cycle is relatively long; the advantage of chemical restoration is that it can remove pollutants in the soil, but the disadvantage is that there may be secondary pollution; physical restoration techniques such as soil replacement and guest soil restoration The efficiency is high, but the

Method used

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  • Saline-alkali soil heavy metal ion remover and preparation method thereof
  • Saline-alkali soil heavy metal ion remover and preparation method thereof

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Embodiment 1

[0021] A heavy metal ion remover for saline-alkali soil, comprising the following raw material components in parts by weight: 30 parts of mineral source humus superfine powder, 5 parts of Phanerochaete chrysosporium extracellular polymer, 4 parts of cyanobacteria liquid, lignin grafting 15 parts of polyacrylonitrile, 5 parts of citric acid, 20 parts of straw powder, 15 parts of desulfurized gypsum.

[0022] The particle size of the mineral source humus ultrafine powder is 1 μm.

Embodiment 2

[0024] The preparation method of the saline-alkali soil soil heavy metal ion remover of embodiment 1, concrete steps are as follows:

[0025] A: Mineral source humus is taken and crushed by a grinder at normal temperature and pressure, then regulated by an air classifier and sieved to obtain mineral source humus superfine powder with a particle size of 1 μm;

[0026] B: The straw is pulverized by a pulverizer and then passed through a 750-mesh sieve to obtain straw powder;

[0027] C: Take 2.0g potato extract, 20g glucose, 3g KH 2 PO 4 , 1.5g MgSO 4 ·7H 2 O, 0.1mg FeSO 4 ·7H 2 O, 0.2 mg CuSO 4 ·5H 2 0. Put 8 mg of vitamin B1 into the conical flask, set the volume to 1000ml with distilled water, inoculate Phanerochaete chrysosporium in the above conical flask by 5% of the inoculum amount, and inoculate the conical flask at a temperature of 35°C and at a temperature of 120r / min. Shaking culture was carried out under the condition of rotating speed, and the culture in the...

Embodiment 3

[0031] A heavy metal ion remover for saline-alkali soil, comprising the following raw material components in parts by weight: 35 parts of mineral source humus superfine powder, 6 parts of Phanerochaete chrysosporium extracellular polymer, 5 parts of cyanobacteria liquid, lignin grafting 16 parts of polyacrylonitrile, 6 parts of citric acid, 21 parts of straw powder, 16 parts of desulfurized gypsum.

[0032] The particle size of the ultrafine powder of mineral source humus is 5 μm.

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Abstract

The invention discloses a saline-alkali soil heavy metal ion remover and a preparation method thereof. The saline-alkali soil heavy metal ion remover comprises the following raw material components byweight: 30-45 parts of mineral source humus ultrafine powder, 5-10 parts of a phanerochaete chrysosporium extracellular polymeric substance, 4-8 parts of cyanobacteria liquid, 15-20 parts of lignin grafted polyacrylonitrile, 5-10 parts of citric acid, 20-25 parts of straw powder, and 15-20 parts of desulfurized gypsum. The mineral source humus ultrafine powder in the soil desalting agent can improve the air permeability and water permeability of soil and strongly adsorb various heavy metal ions, also has strong water retention and storage capacity, and improves the landform of saline-alkali soil, so that the saline-alkali soil can adapt to more and more plant growth, and the selectivity of agricultural planting is improved.

Description

technical field [0001] The invention relates to the technical field of saline-alkali soil improvement, in particular to a saline-alkali soil heavy metal ion remover and a preparation method thereof. Background technique [0002] Coastal saline-alkali land is mainly formed due to the impact of seawater, soil transpiration, land reclamation projects, deforestation, and salt production from surrounding lakes. Its characteristics are mainly reflected in factors such as high soil salinity, high groundwater level, and low natural desalination rate of soil. Freshwater resources are scarce, hydrology has diurnal and seasonal changes, vegetation species diversity and quantity are poor, native tree species and saline-alkali-resistant tree species grow slowly, and cannot quickly form forests. In terms of climate, the ecological environment is easily affected by typhoons, sea tides, salt dust, and salt spray. [0003] The treatment technologies for heavy metal pollution in saline-alka...

Claims

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Application Information

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IPC IPC(8): C09K17/40B09C1/00B09C1/10C12P1/02C09K101/00C09K109/00C12R1/645
CPCB09C1/00B09C1/10B09C1/105C09K17/40C09K2101/00C09K2109/00C12P1/02C12N1/145C12R2001/645
Inventor 王胜毛庆莲曹林波付翔
Owner WEIFANG YOURONG IND
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