Biochar based spiral magnetic bio-membrane reactor

A biofilm reactor and helical technology, applied in the field of helical magnetic biofilm reactors, can solve problems such as not much research, and achieve the effects of simple preparation process, improved ability, and good film hanging effect.

Inactive Publication Date: 2015-11-25
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are not many studies on it as a sewage treatment filler.

Method used

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  • Biochar based spiral magnetic bio-membrane reactor
  • Biochar based spiral magnetic bio-membrane reactor
  • Biochar based spiral magnetic bio-membrane reactor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] A biochar-based helical magnetic biofilm reactor composed of such as figure 1 The spiral U-shaped groove track shown is composed of magnetic bio-carbon filler loaded in the spiral U-shaped groove track; the spiral U-shaped groove track is ascending, and the plane of the spiral U-shaped groove track is The angle with the horizontal plane is 8 °, and the periphery of the spiral U-shaped groove track projected on the horizontal plane is circular, and the diameter of the circle is 4 times the width of the spiral U-shaped groove track. The length to width ratio of the groove track is 21, and the depth is 8cm; the material of the spiral U-shaped groove track is plexiglass.

[0031] Wherein the preparation method of magnetic bio-carbon filler is:

[0032] (1) Add excessive waste iron scraps to the waste liquid containing sulfuric acid, add biochar after reacting for 21 minutes, stir for 10 minutes, absorb ferrous ions in the waste liquid for 35 minutes, and obtain biochar tha...

Embodiment 2

[0037] A biochar-based helical magnetic biofilm reactor composed of such as figure 1 The spiral U-shaped groove track shown is composed of magnetic bio-carbon filler loaded in the spiral U-shaped groove track; the spiral U-shaped groove track is ascending, and the plane of the spiral U-shaped groove track is The angle with the horizontal plane is 15°, and the periphery of the spiral U-shaped groove track projected on the horizontal plane is a circle, and the diameter of the circle is 6 times the width of the spiral U-shaped groove track. The length to width ratio of the groove track is 30, and the depth is 12cm; the material of the spiral U-shaped groove track is stainless steel.

[0038] Wherein the preparation method of magnetic bio-carbon filler is:

[0039] (1) Add excessive waste iron scraps to the waste liquid containing sulfuric acid, add biochar after reacting for 30 minutes, stir for 15 minutes, absorb ferrous ions in the waste liquid for 40 minutes, and obtain bioch...

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Abstract

The invention provides a biochar based spiral magnetic bio-membrane reactor. The biochar based spiral magnetic bio-membrane reactor is composed of a spiral U-shaped groove track and a magnetic biochar filler filled into the spiral U-shaped groove track. The spiral U-shaped groove track is ascending, the angle formed by the plane where the spiral U-shaped groove track is located and a horizontal plane is 8-15 degrees, the periphery of the projection of the spiral U-shaped groove track on the horizontal plane is round, the diameter of the circle is 4-6 times of the width of the spiral U-shaped groove track, the specific value of the length to the width of the spiral U-shaped groove track is greater than 20, and the depth is 8-12 cm. The magnetic biochar filler is prepared by the steps of ferrous ion absorption with biochar, standing and oxidation, strong alkali reaction and the like. When the biochar based spiral magnetic bio-membrane reactor works, sewage spirally flows down from the upper portion, and pollutants in the sewage are degraded under the effect of a biological film on the surface of the filler. In the whole treatment process, aeration is not needed, and almost no kinetic energy consumption is produced.

Description

technical field [0001] The invention relates to a biofilm reactor, in particular to a spiral magnetic biofilm reactor based on biochar. Background technique [0002] Biofilm method is a biological treatment method parallel to activated sludge method, which has been widely used in sewage treatment. Commonly used biofilm methods mainly include biological filter, biological turntable, biological contact oxidation and biological fluidized bed. The biofilm method has the advantages of strong adaptability to environmental conditions, less sludge production, good sludge settlement performance, stable and good treatment efficiency, etc. However, most of the commonly used biofilm methods require aeration, and the biological turntable also needs kinetic energy to drive the turntable to rotate, which requires a certain amount of kinetic energy consumption. [0003] In recent years, biochar as a soil conditioner is attracting more and more attention at home and abroad. Biochar is a c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34C02F3/10
CPCY02W10/10
Inventor 赵如金刘灿灿王静龚丽影王韦胜朱海东
Owner JIANGSU UNIV
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