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Adsorption and degradation dual-function soil remediation material, preparation and application thereof

A soil remediation, dual-function technology, applied in the field of environmental pollution control, can solve problems such as polycyclic aromatic hydrocarbon pollution, and achieve the effect of strong removal

Pending Publication Date: 2022-01-18
SHAANXI UNIV OF SCI & TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Through adsorption and embedding immobilization technology, microbial cells that can effectively degrade polycyclic aromatic hydrocarbons are immobilized on the modified distiller's grains-based porous carbon, and a "adsorption + degradation" dual-functional soil restoration material is prepared. To deal with polycyclic aromatic hydrocarbons in soil, without secondary treatment, direct degradation, eliminate hazards, opened up a new path for efficient resource utilization of waste distiller's grains, and also solved the pollution problem of polycyclic aromatic hydrocarbons in soil, thus realizing "Using Waste to Treat Waste" Environmental Protection Concept and Purpose of Energy Saving and Emission Reduction

Method used

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  • Adsorption and degradation dual-function soil remediation material, preparation and application thereof
  • Adsorption and degradation dual-function soil remediation material, preparation and application thereof
  • Adsorption and degradation dual-function soil remediation material, preparation and application thereof

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Embodiment Construction

[0046] In order to facilitate the understanding of the purpose, technical solutions and effects of the present invention, the present invention will be further described in detail in conjunction with examples.

[0047] Preparation and Characterization of Modified Distillers Grains Based Porous Carbon

[0048] This example illustrates the preparation method and performance characterization of the modified distiller's grain-based porous carbon, and the preparation method is specifically described as follows.

[0049] Wash the distiller's grains or distiller's grains (DG), dry them, and crush the distiller's grains with a pulverizer. The particle size of the crushed distiller's grains is preferably 40-150 mesh, and then ultrasonically mix it with the activator for 0.5-2 hours, and dry it in an oven at 120°C. Dry in medium for 8-12h, protect gas N at 500~800℃ 2 Activate in the atmosphere for 1-4 hours to obtain activated porous carbon.

[0050] The activated porous carbon is soa...

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Abstract

The invention discloses an adsorption and degradation dual-function soil remediation material, preparation and application thereof. The adsorption and degradation dual-function soil remediation material comprises modified vinasse-based porous carbon, wherein the modified vinasse-based porous carbon is embedded and loaded with a microbial strain capable of being used for degrading polycyclic aromatic hydrocarbons, and the modified vinasse-based porous carbon is a material which is prepared by taking vinasse as a raw material and modifying with potassium hydroxide and has the performance of adsorbing polycyclic aromatic hydrocarbons. According to the invention, the immobilized microbial adsorption material is an adsorption and degradation bifunctional vinasse adsorption material, and achieves the technical purpose of adsorbing and degrading PAHs synchronously; and when the adsorption and degradation dual-function soil remediation material is used for soil remediation, waste vinasse can be recycled, waste is treated with waste, the pressure of the waste vinasse on the environment is relieved, the purpose of saving energy is achieved, PAHs can be directly degraded, secondary treatment is not needed, harm is directly eliminated, the purpose of reducing emission is achieved, and the environmental protection concept of treating waste with waste and saving energy and reducing emission is met.

Description

technical field [0001] The invention belongs to the technical field of environmental pollution control, and relates to the application of modified distiller's grains adsorbent and microorganism immobilization technology, and in particular to a soil repair material with dual functions of adsorption and degradation. The invention also provides the preparation method and application of this material. Background technique [0002] Soil is an important environmental medium and the basis for the survival and reproduction of human beings and other organisms. With the development of industry and agriculture and the acceleration of industrialization, various pollutants are produced in large quantities and eventually discharged into the environment, causing serious environmental pollution. In addition to heavy metals, persistent organic pollutants (POPs) are a class of pollutants commonly found in the soil environment. Due to the serious harm to human health and the global ecologica...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K17/40A01B79/02B09C1/08B09C1/10C12N11/14C12N11/10C12N11/084C12R1/01C12R1/13C12R1/38C09K101/00
CPCC09K17/40A01B79/02B09C1/08B09C1/10C12N11/14C12N11/10C12N11/084C09K2101/00B09C2101/00Y02P20/10
Inventor 李成涛马潇涛陈慧媛李振慧
Owner SHAANXI UNIV OF SCI & TECH
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