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Method for removing chlorophenotone

A technology of bis-p-chlorophenyltrichloroethane and chloroform, which is applied in the field of removal of bis-p-chlorophenyltrichloroethane, can solve the problem of high biological selectivity to compounds, unsatisfactory DDT treatment effect, and high consumption. Time and other issues to achieve the effect of rapid enrichment

Active Publication Date: 2017-07-28
ANHUI UNIVERSITY OF ARCHITECTURE
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  • Summary
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

Traditional physical and chemical methods have not been very effective in treating DDT. Biosorption and degradation are one of the most potential methods to solve DDT pollution. However, the selectivity of biology to compounds is high and time-consuming, especially when the When the content of DDT is very low, the effect of bioremediation is relatively worse

Method used

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Examples

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Embodiment 1

[0013] Embodiment one: a kind of removal method of bis-p-chlorophenyltrichloroethane

[0014] A method for removing di-p-chlorophenyl trichloroethane, comprising the following steps:

[0015] The first step: immersing the porous polydimethylsiloxane in an organic solvent so that the pores of the porous polydimethylsiloxane are filled with an organic solvent to obtain a porous polydimethylsiloxane adsorbed with an organic solvent, Described organic solvent is toluene;

[0016] The second step: put the porous polydimethylsiloxane adsorbed with organic solvent into the water to be treated, and stir to make the bis-p-chlorophenyltrichloroethane in the water be adsorbed to the porous polydimethylsiloxane adsorbed with organic solvent. Porous polydimethylsiloxane.

[0017] A preferred embodiment is: the time for the second step of treatment is 3 hours.

[0018] A preferred embodiment is: adding sodium chloride to the water, the amount of which is 20% of the mass of the water.

...

Embodiment 2

[0020] Embodiment two: a kind of removal method of bis-p-chlorophenyltrichloroethane

[0021] A method for removing di-p-chlorophenyl trichloroethane, comprising the following steps:

[0022] The first step: immersing the porous polydimethylsiloxane in an organic solvent so that the pores of the porous polydimethylsiloxane are filled with an organic solvent to obtain a porous polydimethylsiloxane adsorbed with an organic solvent, Described organic solvent is n-hexane;

[0023] The second step: put the porous polydimethylsiloxane adsorbed with organic solvent into the water to be treated, and stir to make the bis-p-chlorophenyltrichloroethane in the water be adsorbed to the porous polydimethylsiloxane adsorbed with organic solvent. Porous polydimethylsiloxane.

[0024] A preferred embodiment is: the time for the second step of treatment is 2.5 hours.

[0025] A preferred embodiment is: adding sodium chloride to the water, the amount of which is 25% of the mass of the water. ...

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Abstract

The invention discloses a method for removing chlorophenotone. The method comprises the following steps: (1) immersing porous dimethiconol into an organic solvent and filling pores of the porous dimethiconol with the organic solvent to obtain porous polydimethylsiloxane adsorbing the organic solvent, wherein the organic solvent is methylbenzene, n-hexane or trichloromethane; and (2) putting the porous polydimethylsiloxane adsorbing the organic solvent into to-be-treated water, stirring to adsorb the chlorophenotone in water to the porous polydimethylsiloxane adsorbing the organic solvent. A porous PDMS liquid-phase binding system is built for enriching a trace amount of DDT in a water sample, and a method for efficiently and quickly enriching the DDT in water to remove the DDT is built.

Description

technical field [0001] The invention belongs to the technical field of water treatment and relates to a method for removing bis-p-chlorophenyltrichloroethane. Background technique [0002] DDT, whose Chinese name is DDT, and whose chemical name is bis-p-chlorophenyltrichloroethane, is a widely used organochlorine pesticide. It is an odorless, tasteless white crystal, insoluble in water, soluble in most organic solvents, oils and fats, and is particularly prone to enrichment effects in ecosystems. DDT has physiological effects and "three effects" effects, which will cause extremely serious damage to the ecological environment and human health. DDT and similar compounds DDD and DDE are 3 of the 20 pesticides listed as priority pollutants by the US EPA. It is also the first batch of persistent organic pollutants under the International Pops Convention. Although in the 1950s, many countries began to prohibit or restrict the use of DDT, but malaria, dengue fever, yellow fever, ...

Claims

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Application Information

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IPC IPC(8): C02F1/28
CPCC02F1/285C02F2101/306C02F2101/36C02F2303/16
Inventor 杨英王健伟唐建设江勇唐跃武倪英英
Owner ANHUI UNIVERSITY OF ARCHITECTURE
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