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Biosorption material, preparation method and purpose thereof

A technology of biosorption and corn stalks, applied in separation methods, chemical instruments and methods, adsorption water/sewage treatment, etc., can solve the problems of high temperature conditions, cumbersome steps, unfavorable promotion and application, etc., and achieve no pollution to materials and low operating temperature , to avoid the effect of large area diffusion

Inactive Publication Date: 2012-02-15
大连大成生物科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The carbonization treatment technology commonly used in the prior art often has cumbersome steps, and the treatment requires high temperature conditions, so it is not widely used.
Therefore, there is no report on the use of corn stalks to make bio-oil-absorbing materials to solve oil pollution on water surfaces.

Method used

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  • Biosorption material, preparation method and purpose thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Preparation of biosorbent material I:

[0020] ① Sorting and screening corn stalks to remove spoiled raw materials;

[0021] ②Peel the sorted corn stalks to obtain corn stalk cores, and cut them into 2-3cm block materials along the radial direction;

[0022] ③Step ②The treated material is placed in a muffler furnace, heated at 200°C for 1 hour, and taken out after cooling to obtain bioabsorbent material I. The used muffler furnace has a working voltage of 220V, a heating power of 2.5KW, and a limit temperature of 1050°C.

[0023] After testing, the biological adsorption material I can maintain the original hardness, the material structure is complete, there is no damage, the gap increases, and the mass is reduced by 34.2% compared with that before carbonization.

Embodiment 2

[0025] Preparation of biosorbent material II:

[0026] Steps ① and ② are the same as in Example 1. The treated material is placed in the same muffler furnace as in Example 1, heated at 200° C. for 2 hours, and taken out after cooling to obtain the biosorbent material II.

[0027] After testing, the mass of the bioabsorption material II was reduced by 35.6% compared with that before carbonization, and the structure of the material was incomplete and damaged.

Embodiment 3

[0029] Preparation of biosorbent material III:

[0030] Steps ① and ② are the same as in Example 1. The treated material is placed in the same muffler furnace as in Example 1, heated at 200° C. for 3 hours, and taken out after cooling to obtain the biosorbent material III.

[0031] After testing, the mass of bioabsorption material III was reduced by 36.1% compared with that before carbonization, and the structure of the material was incomplete and damaged.

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Abstract

A biosorption material, a preparation method and purpose thereof. The preparation method is by charring corn straw cores at 200-300 DEG C for 1-3 h. According to the invention, corn straw cores are modified through a physical method to substantially reduce adsorption to water, increase adsorptivity to petroleum; the corn straw cores are controlled to absorb petroleum first and has a fast petroleum adsorption speed. The production method is simple and practical, utilize pollution-free material and has low operation temperature and low energy consumption. The invention fully utilizes a lot of excessive and cheap corn straw to changing waste into valuables. The biological petroleum adsorption material made of corn straw core has small proportion, is convenient for transportation and recovery and floats on water surface without deformation; and absorbed corn straw cores can be used as industrial raw material or substitution energy. The material can realize rapid removal of water surface petroleum pollution and avoid large diffusion and secondary pollution of oil stain, and has important social, economic and ecological significance for marine protection, river ecology and environment.

Description

technical field [0001] The present invention relates to a new biological adsorption material. In particular, the invention relates to a biological adsorption material used in the field of environmental protection, especially for highly efficient removal of oil on the water surface, and a preparation method thereof. Background technique [0002] Petroleum, as the most important material wealth of human energy, not only brings economic and social benefits to human beings, but also poses a serious threat to the environment in which human beings live. Oil pollution in marine water bodies mainly comes from submarine oil spills, offshore oil production, marine transportation, urban polluted water discharge, etc. At the same time, river pollution incidents caused by oil depots and oil pipeline leakages also occur from time to time. There are 1 billion tons of crude oil transported by sea every year in the world, of which about 3.2 million tons are polluted into the ocean due to le...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F1/40
Inventor 姜健杨宝灵姜佳沐
Owner 大连大成生物科技有限公司
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