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Method for treating biosurfactant soil eluent based on FM-SBC/SPC system

A biological surface and active agent technology, applied in water/sewage treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of simultaneous removal of heavy metals and polycyclic aromatic hydrocarbons, biosurfactant loss, Solve the problems of high process cost and achieve the effect of low loss, low preparation cost and cost reduction

Active Publication Date: 2022-03-18
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] Aiming at the existing problems of being unable to simultaneously remove heavy metals and polycyclic aromatic hydrocarbons in the elution waste liquid of complex polluted soil, high cost of treatment process, and serious loss of biosurfactant, the present invention provides a method for treating biosurfactant based on FM-SBC / SPC system. method of dosing soil eluent

Method used

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  • Method for treating biosurfactant soil eluent based on FM-SBC/SPC system
  • Method for treating biosurfactant soil eluent based on FM-SBC/SPC system
  • Method for treating biosurfactant soil eluent based on FM-SBC/SPC system

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Effect test

Embodiment 1

[0049] A method for processing biosurfactant soil eluent based on FM-SBC / SPC system, comprising steps as follows:

[0050] Add magnetized sulfur modified biochar FM-SBC to biosurfactant soil eluent, add sodium percarbonate SPC at the same time, shake and react for 120min, the pH of the system is 7 during the reaction process, and the magnetized sulfur modified biochar FM-SBC adsorbs heavy metals, and the active site of magnetized sulfur modified biochar FM-SBC does not change, and activates sodium percarbonate SPC to generate free radicals to achieve the degradation of polycyclic aromatic hydrocarbons;

[0051] The dosage of magnetic sulfur modified biochar FM-SBC is 1.5g / L, and the dosage of sodium percarbonate SPC is 1.5g / L.

[0052] Magnetized sulfur modified biochar is prepared as follows:

[0053] The collected wheat straw was washed and dried, ground and passed through a 200-mesh sieve, and heated to 500 °C at 10 °C / min in a nitrogen atmosphere, and kept for 2 hours, th...

Embodiment 2

[0056] With the method for processing biosurfactant soil eluent based on FM-SBC / SPC system described in embodiment 1, difference is:

[0057] The dosage of sodium percarbonate SPC is 1g / L.

Embodiment 3

[0059] With the method for processing biosurfactant soil eluent based on FM-SBC / SPC system described in embodiment 1, difference is:

[0060] The dosage of sodium percarbonate SPC is 2g / L.

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Abstract

The invention relates to a method for treating a biosurfactant soil eluent based on an FM-SBC / SPC system, which comprises the following steps: adding magnetized sulfur modified charcoal FM-SBC into the biosurfactant soil eluent, adding sodium percarbonate SPC at the same time, carrying out oscillation reaction for 100-140 minutes, and adsorbing heavy metals by the magnetized sulfur modified charcoal FM-SBC in the reaction process, meanwhile, sodium percarbonate SPC is activated to generate free radicals, and degradation of polycyclic aromatic hydrocarbon is achieved. According to the method, the polycyclic aromatic hydrocarbon in the surfactant soil eluent can be efficiently degraded at high efficiency and low cost, meanwhile, heavy metals in the eluent can be adsorbed, the loss of the biosurfactant is small, and the biosurfactant can be efficiently recycled.

Description

Technical field: [0001] The invention relates to a method for treating biosurfactant soil eluate based on an FM-SBC / SPC system, and belongs to the field of treatment and reuse of complex polluted soil elution wastewater. Background technique: [0002] The world industrial revolution that began in the eighteenth century has brought rapid development of productivity and significant improvement of living standards to human beings, but environmental problems have also followed. Among the numerous pollutants, persistent organic pollutants have attracted increasing attention due to their high toxicity, accumulation and harm to the ecosystem. Polycyclic aromatic hydrocarbons and heavy metals are two types of pollutants that persist in soil and enter organisms through the food chain and drinking water. They are potentially toxic, mutagenic, and carcinogenic to organisms. Heavy metals and polycyclic aromatic hydrocarbons are simultaneously emitted in various anthropogenic activities...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/28B01J20/20B01J20/30C02F1/00C02F101/20
CPCC02F1/283C02F1/281C02F1/00B01J20/20B01J20/06C02F2101/20
Inventor 张晓东张绪赵珊王曙光
Owner SHANDONG UNIV
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