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Application of Ferrous Fe Supply Liquid in Promoting the Fermentation of Bacteria for Treating Petroleum Residue

A technology for supplying liquid and ferrous iron, applied in the removal of solid waste and other directions, can solve problems such as hindering the effective utilization of resources, and achieve the effects of shortening the fermentation period, degrading organic phosphorus well, and improving the volume reduction rate.

Active Publication Date: 2021-03-09
浙江科罗尼生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

This hinders the efficient use of resources

Method used

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  • Application of Ferrous Fe Supply Liquid in Promoting the Fermentation of Bacteria for Treating Petroleum Residue
  • Application of Ferrous Fe Supply Liquid in Promoting the Fermentation of Bacteria for Treating Petroleum Residue
  • Application of Ferrous Fe Supply Liquid in Promoting the Fermentation of Bacteria for Treating Petroleum Residue

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Experimental program
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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 the application of a divalent iron supply liquid in promoting the fermentation of the flora used to treat petroleum residues. The flora used to treat petroleum residues includes the following genera: Methanobacterium, Rhizopus, Trichoderma, Pseudomonas bacteria, Aspergillus, Penicillium, Rhodopseudomonas, Lactobacillus, photosynthetic bacteria and yeast; the ferrous iron supply liquid is a mixed solution containing ferrous ions, and the mixed solution Contains sodium ferrous citrate, ferrous sulfate, ferrous citrate, the molar mass ratio of sodium ferrous citrate, ferrous sulfate, ferrous citrate in the mixed solution is 1:0.28~0.38:0.17~0.23, the two The pH of the valent iron supply liquid is 4.5-5.5. In the present invention, the ferrous iron supply liquid can promote the growth and development of the flora, accelerate the metabolism of the flora, and accelerate the fermentation and decomposition of petroleum residues by the flora, which can greatly shorten the fermentation cycle, increase the volume reduction rate, and at the same time reduce the heavy metal Passivate.

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 Patents(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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