Environmental friendly soil heavy metal restoration agent

An environmentally friendly, heavy metal technology, applied in the field of soil remediation, can solve problems such as the reduction of antioxidant enzyme activity, the destruction of antioxidant systems, and soil recontamination.

Inactive Publication Date: 2016-09-28
凤阳徽亨商贸有限公司
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

Heavy metal elements are easy to combine with the sulfhydryl group in the active part of the enzyme, and the metal element will replace the essential elements in the sulfur protein, such as Mg2+, Ca2+ and other biologically necessary elements. The antioxidant system in the system wreaks havoc
[0004] At present, the remediation technology of heavy metal-contaminated soil mainly adopts chemical means, but a large number of chemical agents used in the remediation process can easily cause soil re-pollution

Method used

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Embodiment Construction

[0022] An environment-friendly soil heavy metal restoration agent, made of the following raw materials in parts by weight (kg): urea phosphate 1, alginic acid 4, corncob 46, chitin 4, biochemical fulvic acid 8, borax 8, ammonium molybdate 2. Seed-removed sunflower plate 75, Enteromorpha 40, kaolin 10, calcium carbonate 18, slash pine needles 25, appropriate amount of water.

[0023] The concrete steps of the preparation of described soil heavy metal restoration agent are as follows:

[0024] (1) Dry the sunflower disc and Enteromorpha without seeds in the sun, crush them, put them in an oven and dry them at 50°C for 10 hours, and put the resulting slag in a closed furnace at a speed of 20°C / min Raise the temperature to 490°C and keep it warm for 90 minutes, then take it out when the temperature drops to 60°C to obtain biochar;

[0025] (2) Put kaolin and calcium carbonate in a calciner after being mixed, calcined at 520° C. for 80 minutes, take it out after cooling to room te...

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Abstract

The invention discloses an environmental friendly soil heavy metal restoration agent, which is prepared from the following raw materials (by weight): 1-2 parts of urea phosphate, 4-5 parts of alginic acid, 46-48 parts of corncob, 4-5 parts of chitin, 8-9 parts of biochemical fulvic acid, 8-9 parts of borax, 2-3 parts of ammonium molybdate, 75-80 parts of seeded sunflower disc, 40-44 parts of enteromorpha prolifera, 10-14 parts of kaolin, 18-20 parts of calcium carbonate, 25-28 parts of slash pine needle and a proper amount of water. According to the soil restoration agent, organic matter is used as main raw materials, and no chemical agents are used so as to guarantee that there is no adverse effect on the soil environment. During the preparation process, possibilities of secondary pollution are avoided during high temperature and fermentation. Thus, the restoration agent treats soil heavy metal pollution while soil is cultivated. The restoration agent has no destructive effect on biological characteristics of soil, has economic and environmental benefits, and is suitable for commercialized production.

Description

technical field [0001] The invention relates to the technical field of soil restoration, in particular to an environment-friendly soil heavy metal restoration agent. Background technique [0002] The sources of heavy metal pollution in my country mainly include industrial "three wastes" discharge, seepage of household garbage, household coal burning, and vehicle exhaust emissions. Industries such as electroplating, plastics, chemicals, and mineral smelting and processing are the main industrial sources of heavy metals. The release of coal combustion is also one of the important causes of soil heavy metal pollution. Motor vehicle exhaust can also significantly cause heavy metal pollution in the soil on both sides of the road. The content of some heavy metal elements in municipal solid waste exceeds the standard, and long-term stacking will also cause heavy metals to leak into the soil, resulting in an increase in local heavy metal content in regional soil. In addition, the l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/08
CPCB09C1/08
Inventor 张波
Owner 凤阳徽亨商贸有限公司
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