Petroleum hydrocarbon pollution removal composition and applications thereof

A technology for removing compositions and compositions, applied in water pollutants, water/sewage treatment, oxidized water/sewage treatment, etc., can solve the problems of iron-containing sludge, lack of efficient heterogeneous catalysts, etc., and achieve easy preparation , avoid the impact on the ecological environment, and have a long effective effect

Active Publication Date: 2019-04-02
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Abstract
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Problems solved by technology

[0007] Aiming at the persulfate oxidation system commonly used in the current chemical remediation technology strategy of petroleum hydrocarbon polluted sites, there are many technical problems in iron-containing sludge and lack of high-efficiency heterogeneous catalysts. DNA-CuNPs as Heterogeneous Catalysts Enhanced Persulfate Oxidant for Removal of Refractory Petroleum Pollutant Components PAHs in the Environment

Method used

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  • Petroleum hydrocarbon pollution removal composition and applications thereof
  • Petroleum hydrocarbon pollution removal composition and applications thereof
  • Petroleum hydrocarbon pollution removal composition and applications thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0050] Degradation of pyrene by CuNPs-persulfate system in aqueous solution

[0051] Dissolve 10 equivalents of newly prepared DNA-CuNPs colloidal solution and 1 mg, 2 mg, 5 mg, 10 mg and 20 mg of sodium persulfate in ultrapure water, stir well at room temperature, adjust the pH of the system to 7.5; add pyrene, and dilute with ultrapure water Until the final volume of the system is 20 mL; at room temperature, continue to stir evenly, and react in the dark for 72 hours, and use high-performance liquid chromatography (fluorescence detector) to quantitatively analyze the results. The degradation rates of the above dosage formulas reached 68% (72h), 100% (72h), 100% (60h), 100% (60h), 100% (48h) and 100% (48h) respectively.

[0052] 10 equivalent DNA-CuNPs colloidal solution preparation method: First, in a 2mL EP tube filled with 0.9mL buffer solution (10mMTris-HCl, pH 7.5), dilute the DNA template solid powder to 500nM, add 0.5mL ascorbic acid to 2mM, mix uniform; finally, add ...

Embodiment 2

[0054] Degradation of pyrene by persulfate in aqueous solution without activator CuNPs

[0055] Dissolve 10 mg of sodium persulfate in a certain amount of ultrapure water, stir evenly at room temperature, adjust the pH of the system to 7.5, add pyrene, and dilute with ultrapure water until the final volume of the system is 20 mL; After 72 hours of photoreaction, the results were quantitatively analyzed by high performance liquid chromatography (fluorescence detector). The formula degradation rate of the above dosage reaches 78% (72h).

Embodiment 3

[0057] Degradation of pyrene by CuNPs in aqueous solution without oxidant persulfate

[0058] Dissolve 10 equivalents of the newly prepared DNA-CuNPs colloidal solution in ultrapure water, stir well at room temperature, and adjust the pH of the system to 7.5; add pyrene, and dilute with ultrapure water until the final volume of the system is 20 mL; Stir and react in the dark for 72 hours, and use high performance liquid chromatography (fluorescence detector) to quantitatively analyze the results. The degradation rate of the above dosage formula reaches 6% (72h).

[0059] The preparation method of 10 equivalent DNA-CuNPs colloidal solution is the same as Example 1.

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Abstract

The present invention provides a petroleum hydrocarbon pollution removal composition and applications thereof, wherein the composition comprises persulfate and copper nanoparticles (CuNPs), and the persulfate and the copper nanoparticles (CuNPs) are separately sub-packaged. According to the present invention, the copper nanoparticles prepared by using the DNA template have a particle size of 23+ / -8 nm, and the preparation method is simple and rapid; the mass concentration ratio of the persulfate to the DNA-CuNPs colloidal solution is 0.1 g / L:(10-20) equivalent; with the novel persulfate oxidation system provided by the invention, the efficient degradation of the difficultly-degraded pollutant component polycyclic aromatic hydrocarbon pyrene in the petroleum hydrocarbon can be achieved under the mild room temperature condition, the chemical sludge is almost not generated within the neutral and alkaline pH value range, and the problems of the difficult treatment of the iron mud in the traditional homogeneous catalyst system and secondary pollution caused by the use of a large amount of the traditional homogeneous catalyst system are solved to a certain extent.

Description

technical field [0001] The invention relates to the field of treatment of petroleum pollutants, in particular, the invention relates to a composition for removing petroleum hydrocarbon pollution and its application. Background technique [0002] Petroleum hydrocarbons can pollute and destroy soil structure and function, and are long-term pollution sources of surface water and groundwater. They may also volatilize and enter the atmosphere, causing harm to human health. At present, petroleum hydrocarbon pollution remediation technologies can be divided into physical remediation, chemical remediation, biological remediation, and joint remediation according to remediation principles. Compared with other remediation methods, chemical oxidation has the outstanding characteristics of high treatment efficiency and strong broad spectrum, and it has a more stable and effective effect on polycyclic aromatic hydrocarbons, which are refractory to microbial degradation of organic pollutan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/72C02F101/32
CPCC02F1/725C02F2101/32
Inventor 宋权威陈昌照张坤峰陈宏坤于文赫郑瑾刘思敏高春阳
Owner BC P INC CHINA NAT PETROLEUM CORP
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