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Soil remediation agent with tea heavy metal content reducing function and use method of soil remediation agent

A soil remediation agent and heavy metal technology, which is applied in the field of tea soil, can solve problems affecting the quality of tea, reduce the concentration of heavy metals in the soil, improve the quality, and optimize the soil structure

Inactive Publication Date: 2019-06-18
SUZHOU UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Therefore, heavy metal pollution problems such as lead, copper, chromium and arsenic seriously affect the quality of tea

Method used

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  • Soil remediation agent with tea heavy metal content reducing function and use method of soil remediation agent
  • Soil remediation agent with tea heavy metal content reducing function and use method of soil remediation agent

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preparation example Construction

[0030] A method for preparing soil remediation agent for reducing heavy metal content in tea leaves, characterized in that: the specific steps are as follows;

[0031] Step 1: Select and mix materials, select slaked lime, sodium bentonite, magnesium carbonate, ferric sulfate and blast furnace slag, put them in a mixer and stir for 20 minutes to make them fully mixed, then put them into a grinder for four times of grinding to get powdery particles and put them into Carry out heating and heating in the reactor for 30 minutes, the temperature is 30-45 degrees Celsius;

[0032] Step 2: Add an appropriate amount of deionized water to the reaction kettle, stir at high speed for 30 minutes, then add polyvinyl chloride, humic acid, stabilizer, citric acid and pH regulator in turn, stir for 20 minutes, then raise the temperature to 50 degrees Celsius to keep warm 30 minutes;

[0033] Step 3: When the temperature of the reaction kettle drops to normal temperature, add organic fertilize...

Embodiment 1

[0036] Raw material formula: including 8 parts of slaked lime, 8 parts of sodium bentonite, 6 parts of polyvinyl chloride, 1 part of magnesium carbonate, 1 part of pH regulator, 6 parts of Bacillus subtilis, 1 part of photosynthetic bacteria, 1 part of humic acid, stabilizer Agent 8, 1 part of high iron sulfate, 1 part of blast furnace slag, 1 part of citric acid, 5 parts of soil conditioner and 5 parts of organic fertilizer compound.

[0037] Specific steps are as follows:

[0038] Step 1: Select and mix materials, select slaked lime, sodium bentonite, magnesium carbonate, ferric sulfate and blast furnace slag, put them in a mixer and stir for 20 minutes to make them fully mixed, then put them into a grinder for four times of grinding to get powdery particles and put them into Carry out heating and heating in the reactor for 30 minutes, the temperature is 30-45 degrees Celsius;

[0039] Step 2: Add an appropriate amount of deionized water to the reaction kettle, stir at high...

Embodiment 2

[0043] Raw material formula: including 9 parts of slaked lime, 10 parts of sodium bentonite, 7 parts of polyvinyl chloride, 3 parts of magnesium carbonate, 3 parts of pH regulator, 7 parts of Bacillus subtilis, 1.5 parts of photosynthetic bacteria, 3 parts of humic acid, stabilizer 9. 3 parts of high iron sulfate, 3 parts of blast furnace slag, 3 parts of citric acid, 6 parts of soil conditioner and 7 parts of organic fertilizer compound.

[0044] Specific steps are as follows:

[0045] Step 1: Select and mix materials, select slaked lime, sodium bentonite, magnesium carbonate, ferric sulfate and blast furnace slag, put them in a mixer and stir for 20 minutes to make them fully mixed, then put them into a grinder for four times of grinding to get powdery particles and put them into Carry out heating and heating in the reactor for 30 minutes, the temperature is 30-45 degrees Celsius;

[0046] Step 2: Add an appropriate amount of deionized water to the reaction kettle, stir at ...

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Abstract

The invention discloses a soil remediation agent with a tea heavy metal content reducing function and a use method of the soil remediation agent. The soil remediation agent comprises, by weight, 8-10parts of slaked lime, 8-12 parts of sodium-based bentonite, 6-8 parts of polyvinyl chloride, 1-5 parts of magnesium carbonate, 1-5 parts of PH (potential of hydrogen) conditioning agents, 6-8 parts ofbacillus subtilis, 1-2 parts of photosynthetic bacteria, 1-5 parts of humic acid, 8-10 parts of stabilizing agents, 1-5 parts of ferric sulfate, 1-5 parts of blast furnace slag, 1-5 parts of citric acid, 5-10 parts of soil conditioners and 5-10 parts of organic fertilizer compound agents. The tea soil remediation agent can simultaneously and effectively reduce various heavy metal pollutants suchas lead, copper, chromium and arsenic, heavy metal in tea leaves can be reduced, growth of the tea leaves is facilitated, the quality of the tea leaves is improved, a soil structure can be optimized,gapes of the soil are increased, growth of roots of tea leaves and microorganisms in the soil is facilitated, micro-ecological compositions of the soil are adjusted, beneficial microbial biomass is increased, water retention of the soil can be improved, and microbial activity amount is stable.

Description

Technical field: [0001] The invention relates to the field of tea soil, in particular to a soil restoration agent for reducing the heavy metal content of tea and its application method. Background technique: [0002] The source of heavy metals in tea is mainly soil: soil is an important place for the survival of tea trees and plays a vital role in the growth and development of tea trees. When the soil parent material contains high levels of heavy metals, the tea tree gradually absorbs and accumulates from the soil during the years of growth, forming heavy metal residues in tea leaves. [0003] Tea trees, like other plants, also contain trace amounts of lead. The main sources of lead in tea gardens are dust reduction by steam, sewage irrigation or sludge application. Lead exists in solid forms such as Pb(OH)2, PbCO3, and PbSO4 in the soil, and is generally fixed in the topsoil layer of the soil, and it is difficult to move horizontally or vertically, but the migration abilit...

Claims

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Application Information

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IPC IPC(8): C09K17/40B09C1/08C09K101/00
Inventor 陈佳佳仲雨晴张岩
Owner SUZHOU UNIV OF SCI & TECH
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