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Wood cellulose-carbon nanotube composite filamentous biological filler for treating micro-polluted water source and preparation method of wood cellulose-carbon nanotube composite filamentous biological filler

A carbon nanotube composite and bio-filler technology, which is applied in the direction of water pollutants, sustainable biological treatment, chemical instruments and methods, etc., can solve the problems of poor treatment effect of micro-pollutants, achieve reduced replacement costs, strong adsorption effect, The effect of high-efficiency enrichment

Pending Publication Date: 2022-01-04
NANJING INNOVATION CENT FOR ENVIRONMENTAL PROTECTION IND
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The present invention aims at the technical problem that the treatment effect of micro-pollutants is poor in the prior art, and provides a wood cellulose-carbon nanotube composite filamentous biological filler for treating micro-polluted water sources and a preparation method thereof. Composite preparation of nanotubes and wood cellulose

Method used

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  • Wood cellulose-carbon nanotube composite filamentous biological filler for treating micro-polluted water source and preparation method of wood cellulose-carbon nanotube composite filamentous biological filler

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Weigh 0.7 g of commercially available carboxylated carbon nanotube powder, put it into a three-necked flask, add 30 mL of thionyl chloride (SOCl 2 ), then add 1mL of N,N-dimethylformamide (DMF), control the temperature of the three-necked flask at 70°C, reflux for 24h, and then distill off the sample under reduced pressure at 90°C with a rotary evaporator. Thionyl chloride, the sample was taken out, washed with acetone repeatedly, and then the sample was filtered with a microporous membrane under reduced pressure until the filtrate was neutral by pH test. Then put it into a vacuum drying oven, vacuum-dry at 70° C., and grind to obtain carbonyl chloride carbon nanotubes after drying.

[0040] Slowly add 100mL of concentrated nitric acid into 400mL of absolute ethanol, mix thoroughly, and store in a brown reagent bottle for later use. Weigh 1g of dry wood powder, add 25mL of nitric acid-ethanol mixture, put it into a reflux condensing device, heat in a boiling water bath...

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Abstract

The invention discloses a wood cellulose-carbon nanotube composite filamentous biological filler for treating a micro-polluted water source and a preparation method of the wood cellulose-carbon nanotube composite filamentous biological filler, belonging to the technical field of wastewater filler production. According to the wood cellulose-carbon nanotube composite filamentous biological filler prepared by the preparation method disclosed by the invention, degrading microorganisms are colonized through wood cellulose-carbon nanotube composite filaments, so the collection and capture capability of the composite filamentous biological filler on organic micropollutants in water is enhanced; and organic micropollutants adsorbed and captured on the wood cellulose-carbon nanotube composite filaments can be intensively decomposed, so the self-cleaning function of the composite filamentous material is achieved.

Description

technical field [0001] The invention relates to the technical field of waste water filler production, and more specifically relates to a wood cellulose-carbon nanotube composite filamentary biological filler for treating slightly polluted water sources and a preparation method thereof. Background technique [0002] A variety of organic micro-pollutants are distributed in micro-polluted water sources, such as polycyclic aromatic hydrocarbons (PAH), polychlorinated biphenyls (PCB), organic pesticides (mainly nitroaromatic compounds, organophosphorus, organochlorine, etc.). The concentration of these organic micropollutants in the water environment is very low (<μg / L), so it is difficult to collect, capture, and degrade. [0003] In order to improve the degradation and treatment effect of organic micro-pollutants in water bodies, some people in the prior art proposed to improve the self-adsorption performance of biological fillers. If searched, the publication number is CN10...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F3/34C02F3/10B01J20/24B01J20/30C02F101/30C02F101/32C02F101/36C02F101/38
CPCC02F3/34C02F3/105C02F3/109C02F3/106B01J20/20B01J20/24C02F2101/36C02F2101/327C02F2101/38C02F2101/30B01J2220/4825B01J2220/4806B01J2220/4812Y02W10/10
Inventor 姜笔存陶胡进卜志岸杨军王强吴秀万成
Owner NANJING INNOVATION CENT FOR ENVIRONMENTAL PROTECTION IND
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