Unlock instant, AI-driven research and patent intelligence for your innovation.

Method for quantitatively collecting phenol in water environment through composite material

A technology of quantitative collection and composite materials, applied in analytical materials, measuring devices, preparation of samples for testing, etc. Inability to faithfully reflect water quality and other issues

Active Publication Date: 2019-09-10
LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY
View PDF9 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the process of sample collection, storage and transportation, the concentration or form of phenol pollutants will inevitably change, and the authenticity of the sample will be lost, which will directly affect the representativeness and accuracy of the environmental monitoring results, and cannot truthfully reflect the water quality. Happening

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Method for quantitatively collecting phenol in water environment through composite material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0063] A method for quantitatively collecting phenol in a water environment through composite materials, the steps are as follows:

[0064] Hazelnut Shell Activated Carbon with Fe 3+ The salt solution is mixed according to the mass ratio=2:1, heated to 800°C by pyrolysis method in a tube furnace, heated for 2 hours, and allowed to cool to obtain a nano-zero-valent iron-carbon composite material. Take 10 mg of nano-zero-valent iron-carbon composite material and put it into a nylon membrane with a pore size of 0.22 μm. After placing it in the water environment to be tested for a period of 4 to 72 hours, use UV-visible spectroscopy to determine the accumulated amount of time during this period. the amount of phenol and calculate the concentration of phenol in the monitored water environment.

Embodiment 2

[0066] A method for quantitatively collecting phenol in a water environment through composite materials, the steps are as follows:

[0067] Hazelnut Shell Activated Carbon with Fe 3+ The salt solution is mixed according to the mass ratio=5:1, heated to 800°C by pyrolysis method in a tube furnace, heated for 2 hours, and allowed to cool to obtain a nano-zero-valent iron-carbon composite material. Take 10 mg of nano-zero-valent iron-carbon composite material and put it into a nylon membrane with a pore size of 0.22 μm. After placing it in the water environment to be tested for a period of 4 to 72 hours, use UV-visible spectroscopy to determine the accumulated amount of time during this period. the amount of phenol and calculate the concentration of phenol in the monitored water environment.

Embodiment 3

[0069] A method for quantitatively collecting phenol in a water environment through composite materials, the steps are as follows:

[0070] Hazelnut Shell Activated Carbon with Fe 3+ The salt is mixed according to the mass ratio = 10:1, and is heated to 800° C. by pyrolysis method in a tube furnace, heated for 2 hours, and allowed to cool to obtain a nano-zero-valent iron-carbon composite material. Take 10 mg of nano-zero-valent iron-carbon composite material and put it into a nylon membrane with a pore size of 0.22 μm. After placing it in the water environment to be tested for a period of 4 to 72 hours, use UV-visible spectroscopy to determine the accumulated amount of time during this period. the amount of phenol and calculate the concentration of phenol in the monitored water environment.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
pore sizeaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention provides a method for quantitatively collecting phenol in a water environment through a composite material. The method comprises the following steps of step (1), preparing a nano zero-valent iron-carbon matrix composite capable of rapidly and efficiently combining phenol molecules; and step (2), placing the nano zero-valent iron-carbon matrix composite in a hydrogel or a membrane with a certain pore diameter which can effectively control the diffusion of the phenol molecules, does not chemically interact with the phenol molecules, and cannot leak the composite material. In a certain time, the diffusion effect of the phenol in a water system to be detected in the membrane or the hydrogel is utilized, so that the phenol diffused into the inner side is immediately combined by the composite material, so that a constant concentration gradient is formed between inner and outer interfaces of the membrane or hydrogel; and the nano zero-valent iron on the composite material can protect the accumulated phenol from being affected by dissolved oxygen and other oxidizing substances in the water environment, and the problem of unstable phenol in a sampling process is avoided.

Description

[0001] Technical field: [0002] The invention belongs to the technical field of environmental monitoring of phenol, and in particular relates to a method for quantitatively collecting phenol in a water environment through a composite material. [0003] Background technique: [0004] Phenol is a protoplasmic poison, which is a pollutant that does great harm to water pollution. Under normal circumstances, if the phenolic compounds contained in the water body exceed 0.1 / 1000, the water body cannot meet the drinking water standard and is harmful to the human body. In February 2012, a phenol pollution incident occurred in Jiangsu, which caused difficulty in drinking water and greatly affected the production and life of local and surrounding residents. The monitoring of phenol has attracted great attention. [0005] Phenol is unstable, reducible and volatile, so it is best to measure it immediately after sampling. However, most samples cannot be analyzed on-site, but the samples ar...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G01N1/40G01N1/44G01N21/31
CPCG01N1/4005G01N1/4044G01N1/44G01N21/31G01N2001/4016
Inventor 范洪涛宋月先尤楠
Owner LIAONING UNIVERSITY OF PETROLEUM AND CHEMICAL TECHNOLOGY