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Soil heavy metal cadmium copper biodegradation agent and preparation method thereof

A biodegradant and heavy metal technology, applied in the direction of microorganism-based methods, biochemical equipment and methods, microorganisms, etc., can solve the problems of reducing soil fertility, insignificant effect, and complicated implementation, so as to promote crop growth and benefit the human body Healthy, improve the effect of soil water and fertilizer retention and air permeability

Active Publication Date: 2013-11-20
金葵子环保生物科技(国际)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

One is engineering treatment, such as digging and replacing soil, but the implementation is complicated, the cost is high and the soil fertility is easy to be reduced
The second is chemical treatment, the effect and cost are moderate, the disadvantage is that it is easy to reactivate
The third is agricultural management, which is easy to operate and low in cost, but the cycle is long and the effect is not significant

Method used

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  • Soil heavy metal cadmium copper biodegradation agent and preparation method thereof
  • Soil heavy metal cadmium copper biodegradation agent and preparation method thereof
  • Soil heavy metal cadmium copper biodegradation agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The main components of a soil heavy metal cadmium and copper biodegradation agent are WH5 strain, WH6 strain, WH7 strain, WH4 strain, furnace ash, vermiculite, and active organic materials.

[0031] Among the above-mentioned microorganisms, WH5 is Bacillus licheniformis; WH6 is Bacillus cereus; WH7 is Aspergillus oryzae; WH4 is Pseudomonas aeruginosa ( Pseudomonas Aeruginosa).

[0032] The proportion of bacteria contained in the soil heavy metal cadmium and copper biodegradation agent is (weight percentage):

[0033] (1) WH5 strain: 10%; (2) WH6 strain: 13%;

[0034] (3) WH7 strain: 40%; (4) WH4 strain: 37%.

[0035] The manufacturing method of the soil heavy metal cadmium and copper biodegradation agent includes bacterial culture and preparation, and the process steps are:

[0036] (1) Mix the above WH5 strain, WH6 strain, WH7 strain, and WH4 strain according to the above-mentioned weight percentage ratio to form a WH flora;

[0037] (2) The formula (weight percentage) of the sec...

Embodiment 2

[0046] The difference between the composition ratio and parameters of the soil heavy metal cadmium and copper biodegradation agent in this example and Example 1 is:

[0047] 1. The proportion of bacteria contained in the soil heavy metal cadmium and copper biodegradation agent is (weight percentage):

[0048] (1) WH5 strain: 26%; (2) WH6 strain: 50%;

[0049] (3) WH7 strain: 8%; (4) WH4 strain: 16%.

[0050] 2. The proportion (weight percentage) of the secondary strain culture medium is: active organic material 35%, rice bran 45%, soybean powder 17%, milk powder 1.5%, sugar 0.5%, and the rest water.

[0051] 3. The temperature of the secondary bacterial culture medium is 45℃, the pH value is 6.5, the culture time is 10 days, and the number of viable bacteria can reach 2 billion / g.

[0052] 4. Mix furnace ash, vermiculite, active organic materials and active furfur of WH flora according to the following weight percentage formula, ferment at room temperature for more than 10 days, crush an...

Embodiment 3

[0059] The difference between the composition ratio and parameters of the soil heavy metal cadmium and copper biodegradation agent in this example and Example 1 is:

[0060] 1. The ratio of bacteria contained in the soil heavy metal cadmium and copper biodegradation agent is (weight percentage):

[0061] (1) WH5 strain: 45%; (2) WH6 strain: 30%;

[0062] (3) WH7 strain: 17%; (4) WH4 strain: 8%.

[0063] 2. The proportion (weight percentage) of the secondary culture medium is: active organic material 45%, rice bran 35%, soybean powder 15%, milk powder 2.5%, sugar 1.5%, and the rest water.

[0064] 3. The temperature of the secondary bacterial culture medium is 30℃, the pH value is 7.5, the culture time is 15 days, and the number of viable bacteria can reach 500 million / g.

[0065] 4. Mix furnace ash, vermiculite, active organic materials and active furfur of WH flora according to the following formula by weight percentage, ferment for more than 10 days at room temperature, crush, and pack...

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Abstract

The invention discloses a soil heavy metal cadmium copper biodegradation agent and a preparation method thereof. The soil heavy metal cadmium copper biodegradation agent comprises the main components including a WH5 strain, a WH6 strain, a WH7 strain, a WH4 strain, furnace ash, vermiculite and an active organic material. The preparation process of the soil heavy metal cadmium copper biodegradation agent comprises the following steps of: mixing the WH5 strain, the WH6 strain, the WH7 strain and the WH4 strain into a WH colony in proportion; carrying out secondary strain culture on the WH colony through a WH colony secondary culture medium; finally mixing the furnace ash, the vermiculite, the active organic material and the active bran bacteria of the WH colony according to a formula, fermenting at normal temperature for more than 10 days, crushing, and packaging to prepare the soil heavy metal cadmium copper biodegradation agent. The soil heavy metal cadmium copper biodegradation agent disclosed by the invention achieves an outstanding effect on degrading heavy metals, namely cadmium and copper which are contained in soil.

Description

Technical field [0001] The invention relates to the technical field of soil heavy metal biodegradation, in particular to a soil heavy metal cadmium and copper biodegradation agent and a manufacturing method thereof. Background technique [0002] From the end of the last century to the beginning of this century, it was the age when we Asians suffered the most from heavy metals after entering industrialization. The first is that Japanese rice is contaminated with cadmium and has sequelae such as pain. Taiwan is no exception. Therefore, at the turn of this century, the study of heavy metal pollution has received special attention. For example, the cadmium content of brown rice in the inter-indica rice line is higher than that of japonica rice. The international rice heavy metal safety and quality standard in Taiwan will be reduced from the current 0.45mg / g to 0.2mg / g. At present, the country has found many cases of cadmium rice incidents, mainly because the cadmium content of ri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N1/20C12N1/14C09K17/00A62D3/02C12R1/10C12R1/085C12R1/385C12R1/69A62D101/43
Inventor 何飚黄恩雄何定国何定荣
Owner 金葵子环保生物科技(国际)有限公司
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