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Method for treating heavy metal in soil

A heavy metal and soil technology, applied in the field of soil heavy metal treatment and microbial agent treatment of soil heavy metals, can solve the problems of complex migration and transformation of soil heavy metal pollutants and difficult treatment, and achieve the effect of meeting the needs of social and economic development and efficient degradation

Inactive Publication Date: 2016-07-27
XIAMEN RENTIANJING AGRI TECH CO LTD
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  • Abstract
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Problems solved by technology

[0016] 5) The repair time is the actual running time of each technology, excluding the time for repair investigation, feasibility study, repair technology screening, repair engineering design, etc.
[0019] However, the migration and transformation of soil heavy metal pollutants is very complicated, and the treatment is extremely difficult. Therefore, it is urgent to develop reagents, methods and technologies that can quickly and effectively improve soil heavy metals

Method used

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  • Method for treating heavy metal in soil
  • Method for treating heavy metal in soil
  • Method for treating heavy metal in soil

Examples

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Embodiment 1

[0044] 1) Mixture: Mix beneficial bacteria, including 1kg of photosynthetic bacteria (with a concentration of 1.1-150 million / g), 1kg of actinomycetes (with a concentration of 330-350 million / g), 1kg of lactic acid bacteria (with a concentration of 1.1-1.5 100 million / g), yeast 1kg (concentration is 200-300 million / g), Bacillus subtilis 2kg (concentration is 600-800 million / g), Bacillus thuringiensis 1kg (concentration is 100-200 million / g) g), Bacillus megaterium 1kg (concentration is 500-600 million / g), nitrogen-fixing bacteria 1kg (concentration is 200-300 million / g), Citrobacter 1kg (concentration is 200-250 million / g), 2kg of Bacillus licheniformis (concentration is 1.1-150 million / g), and the matrix that provides nutrition for beneficial bacteria, including 25kg of wheat husk, 25kg of rice bran, 20kg of soybean meal, 8kg of milk powder, 5kg of cinnamon, 5kg of crustacean bone meal, magnesium oxide 2kg, mint essence 6kg, molasses 4kg, mix and stir evenly to form microbial...

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Abstract

The invention discloses a method for treating heavy metal in soil. An effective microbial community and a substrate for providing nutrition to the microbial community are uniformly mixed according to a mass ratio of 1: 5-10 to form a microorganism agent; the microorganism agent is uniformly spread on a land needing to be treated; 2-3 kg microorganism agent is applied to each Mu land; soil is loosened and the land is overturned to fully contact the microorganism agent with the soil; the land is irrigated after overturning; the soil is tested at the seventh day to observe the heavy metal degrading condition; and the application quantity and the application times of the microorganism agent are adjusted according to the heavy metal pollution degree and the degrading demands. The method for treating the heavy metal in the soil can safely, environment-friendly and efficiently degrade the heavy metal in the soil to satisfy the social and economic development demands.

Description

technical field [0001] The invention belongs to the technical field of soil treatment, and relates to a method for treating heavy metals in soil, in particular to a method for treating heavy metals in soil with microbial agents. Background technique [0002] Soil is an important natural resource for human survival and development. However, the current national soil environment is not optimistic. Some areas have serious soil pollution. The quality of cultivated land soil environment is worrying. Man-made activities such as industry, mining, agriculture, and high background values ​​of the soil environment are the main causes of soil pollution or exceeding standards. The total exceeding rate of national soil is 16.1%, of which the proportions of slightly, lightly, moderately and heavily polluted sites are 11.2%, 2.3%, 1.5% and 1.1% respectively. Inorganic pollutants are the main type of pollution, followed by organic pollutants, and compound pollutants account for 82.8% of th...

Claims

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Application Information

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IPC IPC(8): B09C1/10C12N1/20C12N1/16C12R1/125C12R1/07C12R1/11C12R1/065C12R1/10
CPCB09C1/10B09C2101/00C12N1/16C12N1/20
Inventor 孔海燕陈家和陈丞彦
Owner XIAMEN RENTIANJING AGRI TECH CO LTD
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