Application of ferrous iron supply liquid to aspect of promoting flora fermentation for petroleum residue treatment

A technology for supplying liquid and ferrous iron, applied in the direction of solid waste removal, etc., can solve problems such as hindering the effective use of resources, achieve the effects of shortening the fermentation cycle, increasing the volume reduction rate, and better degrading organic phosphorus

Active Publication Date: 2019-06-07
浙江科罗尼生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This hinders the efficient use of resources

Method used

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  • Application of ferrous iron supply liquid to aspect of promoting flora fermentation for petroleum residue treatment
  • Application of ferrous iron supply liquid to aspect of promoting flora fermentation for petroleum residue treatment
  • Application of ferrous iron supply liquid to aspect of promoting flora fermentation for petroleum residue treatment

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Effect test

Embodiment 1 2

[0016] The preparation of embodiment 1 ferrous iron supply liquid

[0017] Put citric acid monohydrate powder (2.5mol) with a purity of ≥99% into a reactor with 10L of water, heat up to 60°C, and slowly add a total of 3mol of carbonic acid with a purity of ≥97% in 10 batches under stirring. Sodium, stir for 6 minutes after each batch is added and heat up to 80°C, use nitrogen to isolate the air, add 1 mol of ferrous sulfate heptahydrate with a purity of ≥95% at one time, finally heat up to 92°C, and keep stirring at 92°C to react 2 hours. Cool down to room temperature in the absence of air. Finally, a ferrous iron supply liquid is obtained.

[0018] After inspection, in the ferrous iron supply liquid of the present embodiment, the total concentration of ferrous ions (ferrous iron) in the mixed solution is 0.095mol / L, and the moles of ferrous sodium citrate, ferrous sulfate, and ferrous citrate The mass ratio is 1:0.28:0.23.

Embodiment 2 2

[0019] Embodiment 2 Preparation of ferrous iron supply liquid

[0020] Put citric acid monohydrate powder (2.5mol) with a purity of ≥99% into a reactor with 10L of water, heat up to 50°C, and slowly add a total of 3mol of carbonic acid with a purity of ≥97% in 8 batches under stirring. Sodium, after each batch is added, stir for 8 minutes and heat up to 70°C, use nitrogen to isolate the air, add 1 mol of ferrous sulfate heptahydrate with a purity of ≥95% at one time, finally heat up to 88°C, and keep stirring at 88°C for 5 Hour. Cool down to room temperature in the absence of air. Finally, a ferrous iron supply liquid is obtained.

[0021] After inspection, in the ferrous iron supply liquid of the present embodiment, the total concentration of ferrous ions (ferrous iron) in the mixed solution is 0.095mol / L, and the moles of ferrous sodium citrate, ferrous sulfate, and ferrous citrate The mass ratio is 1:0.38:0.17.

Embodiment 3 2

[0022] Embodiment 3 Preparation of ferrous iron supply liquid

[0023] Put citric acid monohydrate powder (2.5mol) with a purity of ≥99% into a reaction kettle with 10L of water, raise the temperature to 55°C, and slowly add a total of 3mol of sodium carbonate with a purity of ≥97% in 12 batches under stirring After each batch is added, stir for 4 minutes and raise the temperature to 75°C, use nitrogen to isolate the air, add 1 mol of ferrous sulfate heptahydrate with a purity of ≥95% at one time, and finally raise the temperature to 90°C, and keep stirring at 90°C for 2 Hour. Cool down to room temperature in the absence of air. Finally, a ferrous iron supply liquid is obtained.

[0024] After inspection, in the ferrous iron supply liquid of the present embodiment, the total concentration of ferrous ions (ferrous iron) in the mixed solution is 0.095mol / L, and the moles of ferrous sodium citrate, ferrous sulfate, and ferrous citrate The mass ratio is: 1:0.35:0.2.

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Abstract

The invention discloses application of ferrous iron supply liquid to the aspect of promoting flora fermentation for petroleum residue treatment. Floras for petroleum residue treatment comprise following bacterial genus including methanobacterium, rhizopus, trichoderma, pseudomonas, aspergillus, penicillium, rhodopseudomonas, lactobacillus acetotoleran, photosynthetic bacteria and saccharomycetes.The ferrous iron supply liquid is ferrous iron ion containing mixed liquid. The mixed liquid comprises sodium ferrous citrate, ferrous sulfate and ferrous citrate, the molar mass ratio of the sodium ferrous citrate to the ferrous sulfate to the ferrous citrate in the mixed liquid is 1:0.28-0.38:0.17-0.23, and the pH of the ferrous iron supply liquid is 4.5-5.5. The ferrous iron supply liquid can promote the floras to grow, the metabolism of the floras is accelerated, fermenting and decomposing of petroleum residues through the floras are accelerated, the fermentation period can be greatly shortened, the volume reduction rate is increased, and meanwhile heavy metal can be passivated.

Description

technical field [0001] The invention belongs to the technical field of environmental protection, and in particular relates to the application of a divalent iron supply liquid in promoting the aerobic fermentation of bacterial groups used for petroleum residue treatment. Background technique [0002] The petroleum industry has a huge system, numerous production links and complicated processes. During the process of exploiting crude oil and refining petroleum products, a large amount of waste water, waste gas, waste residue and other toxic and harmful fluid mixtures will be generated. [0003] Currently, petroleum residues in China's petroleum industry are usually disposed of through incineration or landfill. The main components of petroleum residues are macromolecular organic compounds. During the combustion process, these substances will produce pollutants such as dioxins, benzodiazepines, and polycyclic aromatic hydrocarbons due to incomplete combustion. These substances ca...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B3/00
Inventor 李湧
Owner 浙江科罗尼生物科技有限公司
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