Remediation method for quinclorac contaminated soil

A technology for quinclorac and polluted soil, which is applied to the restoration of polluted soil and other directions, can solve the problems of weakening quinclorac pollution, crop damage, abnormal growth of crops, etc., and achieves a remarkable repair effect, weakens pollution problems, and restores simple steps

Inactive Publication Date: 2016-11-09
SUZHOU FAST INFORMATION TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although quinclorac is a low-toxic herbicide, the natural degradation rate of quinclorac is slow, and excessive use will gradually accumulate in the field all year round, causing harm to various crops, not only causing abnormal growth of crops, but also affecting the growth of crops rate, yield and quality, and enriched in the human body through the food chain, causing certain biological hazards
At present, the solutions to quinclorac pollution are mainly photodegradation and microbial degradation. Although these two methods have a certain effect on weakening or reducing quinclorac pollution, their repair effect needs to be further improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A method for remediating quinclorac polluted soil includes the following preparation steps:

[0022] (1) Preparation of repair agent: Weigh 16 parts of fly ash, 7 parts of titanium dioxide, 4 parts of vanadium pentoxide, 2 parts of cuprous oxide, 5 parts of zinc oxide, 2 parts of sodium silicate, and selenium oxide by weight. 1 part, 2 parts of molybdenum oxide, 6 parts of hydroxyapatite, 11 parts of cow dung, 6 parts of β-cyclodextrin, 4 parts of yeast powder, 6 parts of diatomaceous earth, 5 parts of sodium succinate, 3 parts of sodium peroxide , 5 parts of sepiolite, 3 parts of diammonium citrate, and 6 parts of chitin are placed in a ball mill jar, ground to 150 mesh, and discharged;

[0023] (2) Weigh the above remediation agent at 350g / mu, and sprinkle half of the remediation agent on the contaminated soil to be remediated, plow up and down, spray water, maintain the humidity of the contaminated soil at 20%, and irradiate 5W with ultraviolet light , Plowing up and dow...

Embodiment 2

[0027] A method for remediating quinclorac polluted soil includes the following preparation steps:

[0028] (1) Preparation of repair agent: weigh 25 parts by weight of fly ash, 12 parts of titanium dioxide, 9 parts of vanadium pentoxide, 6 parts of cuprous oxide, 8 parts of zinc oxide, 6 parts of sodium silicate, and selenium oxide 6 parts, 5 parts of molybdenum oxide, 9 parts of hydroxyapatite, 20 parts of cow dung, 12 parts of β-cyclodextrin, 10 parts of yeast powder, 9 parts of diatomaceous earth, 5-10 parts of sodium succinate, sodium peroxide 6 parts, 9 parts of sepiolite, 8 parts of diammonium citrate, 11 parts of chitin are placed in a ball mill jar, ground to 300 mesh fineness, and discharged;

[0029] (2) Weigh the above remediation agent at 600g / mu, and sprinkle half of the remediation agent on the contaminated soil to be remediated, plow up and down, spray water, maintain the humidity of the contaminated soil at 35%, and irradiate 15W with ultraviolet light , Plowing u...

Embodiment 3

[0033] A method for remediating quinclorac polluted soil includes the following preparation steps:

[0034] (1) Preparation of repair agent: weigh 20 parts by weight of fly ash, 15 parts of titanium dioxide, 6 parts of vanadium pentoxide, 4 parts of cuprous oxide, 6 parts of zinc oxide, 4 parts of sodium silicate, and selenium oxide 3 parts, 3.5 parts of molybdenum oxide, 7 parts of hydroxyapatite, 15 parts of cow dung, 9 parts of β-cyclodextrin, 7 parts of yeast powder, 7 parts of diatomaceous earth, 7 parts of sodium succinate, 4.5 parts of sodium peroxide , 7 parts of sepiolite, 5.5 parts of diammonium citrate, 8 parts of chitin are placed in a ball milling tank, grind to 220 mesh fineness, and discharge;

[0035] (2) Weigh the above remediation agent at 470g / mu, and sprinkle half of the remediation agent on the contaminated soil to be remediated, plow up and down, spray water, maintain the humidity of the contaminated soil at 27%, and irradiate 10W of ultraviolet light , Plowi...

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PUM

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Abstract

The invention discloses a remediation method for quinclorac contaminated soil. the remediation method comprises the following preparation steps that (1) mixed powder of coal ash, titanium dioxide, vanadium pentoxide, cuprous oxide, zinc oxide, sodium silicate, selenium oxide, molybdenum oxide, hydroxyapatite, cow dung, beta-cyclodextrin, yeast powder, kieselguhr, sodium succinate, sodium peroxide, sepiolite, ammonium citrate dibasic and chitin is weighed, ground and then discharged, and a remediation agent is obtained; (2) half of the remediation agent is scattered on the contaminated soil, and plowing and ultraviolet irradiation are conducted sequentially; (3) the remaining half of the remediation agent is scattered, plowing and ultraviolet irradiation are conducted sequentially, an ultraviolet lamp is turned off, and ventilation is conducted; and (4) a compound solid inoculant is scattered, and plowing and remediation are conducted sequentially. The remediation method provided by the invention has a significant remediation effect on the quinclorac contaminated soil, the degradation rate of the remediation method is up to 89% or above, the remediation steps are simple, the period is short, the cost is low, and the remediation method can be applied in reality widely and conveniently.

Description

Technical field [0001] The invention belongs to the technical field of soil remediation, and specifically relates to a method for remediating quinclorac polluted soil. Background technique [0002] Soil is one of the basic elements of the human environment and the material basis for human survival, life and production. Soil pollution refers to the phenomenon that harmful substances discharged from human production and living activities enter the soil, directly or indirectly endangering the health of humans and animals. [0003] Quinclorac is a specific and selective herbicide for controlling barnyardgrass in rice fields. It is a hormone-type quinoline carboxylic acid herbicide. The symptoms of weed poisoning are similar to those of auxins. Quinclorac is a low-toxic herbicide, but the natural degradation rate of Quinclorac is slow. Excessive use will gradually accumulate in the field throughout the year, causing harm to various crops, not only causing abnormal growth of crops, but ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/08
CPCB09C1/08
Inventor 彭孝茹
Owner SUZHOU FAST INFORMATION TECH CO LTD
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