Method for assessing fullerene C60 contamination in sludge improved soil

A technology for improving soil and fullerenes, applied in the field of contaminated soil remediation, can solve problems such as unfavorable detection, complicated operation, and many processes, and achieve the effect of low cost and simple steps

Inactive Publication Date: 2018-12-18
TIANJIN UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] Fullerene C 60 Pollution assessment methods include isotope tracer method, high performance liquid chromatography-ultraviolet detection method, etc. However, these methods have high requirements for detection instruments or methods, complex operations, and many processes, which are not conducive to quick and convenient detection operations

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  • Method for assessing fullerene C60 contamination in sludge improved soil
  • Method for assessing fullerene C60 contamination in sludge improved soil
  • Method for assessing fullerene C60 contamination in sludge improved soil

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Embodiment Construction

[0025] The present invention will be further described below by specific examples. The embodiments of the present invention are for better understanding of the present invention by those skilled in the art, and do not limit the present invention in any way.

[0026] 1) Select the dewatered sludge after anaerobic digestion of a sewage treatment plant in Tianjin, a garden soil and a saline-alkali soil in Jinnan District, Tianjin to simulate the land use process of sludge.

[0027] 2) Prepare a series of concentration gradients of C 60 Toluene standard solution, read the absorbance y at 332nm using a UV spectrophotometer 0 , drawn as figure 1 Shown C 60 Toluene standard solution concentration standard curve y=a 0 x+b 0 ①;

[0028] Preparation C 60 water suspension, and figure 1 Standard curve to determine the resulting C 60 the concentration of the aqueous suspension;

[0029] According to the mass ratio of 1:1, in a 50mL plastic centrifuge tube, mix 20g of pretreated u...

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Abstract

The invention relates to a soil utilization process of sludge, a method for assessing fullerene C60 contamination in sludge improved soil. The method mainly comprises the following steps: performing air drying, smashing and screening for the soil subjected to sludge improvement, orderly using ultrapure water and methylbenzene to perform vibrating extraction for the C60, testing concentration of the C60 through an ultraviolet spectrophotometer, wherein the concentration is used for assessing degree of being contaminated by the C60 of a tested soil sample. The test method is systematic and complete, and the method only relates to common instruments and medicines and is convenient for detection and relatively low-cost.

Description

technical field [0001] The invention belongs to the technical field of contaminated soil remediation, and relates to a method for evaluating fullerene C in sludge improved soil. 60 method of contamination. Background technique [0002] Fullerene C 60 It is a nanomaterial that has excellent properties such as superconductivity, strong magnetism, high pressure resistance, and chemical corrosion resistance, but is toxic to the environment and organisms. In recent years, due to the extensive development and utilization of nanomaterials, including fullerene C 60 A variety of nano-scale pollutants, including pollutants, gradually enter our daily life, and enter into the sewage treatment plant as human activities enter the municipal or industrial wastewater, and then come into contact with the activated sludge of the sewage treatment plant. [0003] Activated sludge is a general term for microbial groups used to treat sewage and wastewater and the organic and inorganic substance...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/33
CPCG01N21/33
Inventor 杨永奎向锋赵林纪艺龙莎
Owner TIANJIN UNIV
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