Method for removing organic pollutants in water body by activating persulfate with nutrition-enhanced soybean sprout-based biochar

A technology for activating persulfate and organic pollutants, applied in water pollutants, chemical instruments and methods, chemical/physical processes, etc., can solve the problems of secondary environmental pollution, interference, poor catalytic activity, etc., and achieve the degree of graphitization High, fast reaction rate, low cost effect

Pending Publication Date: 2022-02-08
NANCHANG HANGKONG UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The present invention aims to solve the problem that the catalytic activity of existing biochar materials for activating persulfate is relatively poor, and a large amount of modifying agent needs to be added, which easily causes secondary pollution to the environment, and is e

Method used

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  • Method for removing organic pollutants in water body by activating persulfate with nutrition-enhanced soybean sprout-based biochar
  • Method for removing organic pollutants in water body by activating persulfate with nutrition-enhanced soybean sprout-based biochar
  • Method for removing organic pollutants in water body by activating persulfate with nutrition-enhanced soybean sprout-based biochar

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Example Embodiment

[0026] DETAILED DESCRIPTION an: embodiment of the present embodiment is a biologically activated charcoal bean sprouts yl persulfate removing organic pollutants in water to a method for fortification, in particular for the following steps of:

[0027] First, soybeans immersed in a mass fraction of 0.1% to 0.15% aqueous solution of sodium hypochlorite soak 15min ~ 20min disinfected, washed with deionized water removed soybeans, and then immersed in the nutrient solution soak 10h ~ 11h, the disk is placed after the removal germinated , the disk into germination germination incubator in 5 days to 6 days, periodically sprayed during germination nutrient solution holding surface wetting soybeans, bean sprouts obtained;

[0028] The method of preparing the nutrient liquid to: ferrous sulfate heptahydrate, zinc sulfate heptahydrate and potassium iodide dissolved in water and uniformly mixed to give nutrient solution; the nutrient solution of Fe 2+ A concentration of 30mg / L ~ 35mg / L, ...

Example Embodiment

[0035] DETAILED Embodiment 2: Embodiment of the present embodiment and the exemplary embodiment except that a: a step in the soy immersed in an aqueous solution of sodium hypochlorite with 0.1% of the mass fraction of sterilized 15min soaking, washing with water removed soybeans, and then immersed in the nutrient solution soak 10h. Other specific embodiments of a same.

Example Embodiment

[0036]BEST MODE FOR CARRYING OUT THE INVENTION 3: The present embodiment is different from the specific embodiment one or two: the nutrient solution described in the step one. 2+ The concentration is 30mg / l, Zn 2+ The concentration is 30mg / L, I - The concentration is 15 mg / L. Others are the same as those of the specific embodiments.

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Abstract

The invention relates to a method for removing organic pollutants in a water body by activating persulfate with biochar, in particular to a method for removing organic pollutants in a water body by activating persulfate with nutrition-enhanced soybean sprout-based biochar. The invention aims to solve the technical problems that existing biochar materials are poor in catalytic activity when being used for activating persulfate, a large amount of modifiers needs to be added, secondary pollution is easily caused to the environment, and the existing biochar materials are easily interfered by halide ions, oxygen-containing anions and natural organic matters in a persulfate system. The catalyst raw material adopted in the method is soybean which is rich in source, low in cost, simple to prepare and environment-friendly, non-free radical activation is mainly adopted in the activation process, the reaction rate is high, and persulfate is saved. When 0.2 g/L of the catalyst and 0.5 mM of potassium hydrogen persulfate are added, the degradation efficiency of 10 mg/L of phenol can reach 100% within 10 min.

Description

technical field [0001] The invention relates to a method for removing organic pollutants in water by activating persulfate with biochar. Background technique [0002] In recent years, with the rapid development of industrial technology and medical technology, more and more organic pollutants have been discharged into natural water bodies, seriously affecting the quality of water bodies and the balance of water ecological environment. Due to their strong hydrophobicity and difficult to degrade in the natural environment, organic pollutants are easy to remain and accumulate in the environment and organisms, and will also be enriched and amplified through the food chain, seriously affecting human health and life, and causing irreparable damage to the environment . At present, commonly used treatment methods include adsorption method, Fenton method, membrane separation method, biodegradation method, etc., but they all have disadvantages such as complicated process operation, hi...

Claims

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Application Information

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IPC IPC(8): C02F1/72B01J21/18B01J37/08C02F101/30
CPCC02F1/725B01J21/18B01J37/084C02F2101/30C05D9/02C02F1/722C02F1/283C02F2101/345A01G22/40A61L2101/06A61L2/0088C01B15/08
Inventor 曹嘉鑫陈素华董山山华河林张秋根邱贤华
Owner NANCHANG HANGKONG UNIVERSITY
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