Microbial adsorbent for industrial wastewater and preparation method thereof

A technology for microbial adsorption and industrial wastewater, applied in water pollutants, chemical instruments and methods, biological water/sewage treatment, etc., can solve problems such as poor wastewater treatment effect, achieve stable and long-lasting wastewater treatment capacity, good dispersion, good stability effect

Active Publication Date: 2022-04-26
江苏利然环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In view of the deficiencies in the prior art, the purpose of the present invention is to provide a microbial adsorbent for industrial wastewater and

Method used

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  • Microbial adsorbent for industrial wastewater and preparation method thereof
  • Microbial adsorbent for industrial wastewater and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] A preparation method for a microbial adsorbent for industrial wastewater, comprising the steps of:

[0030] (1) 1gFe 3 o 4 Nanoparticles and 5g of aminopropyltriethoxysilane were added to a mixed solvent of 50mL of methanol and 50mL of toluene, mixed evenly, and refluxed in an oil bath at 100°C for 10 hours. After the reaction, the refluxed product was washed with methanol for 3 times , and carry out vacuum suction filtration on the obtained cleaning product, after the suction filtration is completed, place the suction filtration product in a vacuum drying oven to dry, and after drying, grind it into powder to obtain amino-modified ferric oxide;

[0031] (2) 8g chitosan is added to 100mL, in 10wt% acetic acid solution, stirring and dissolving, then adding 5g amino-modified ferric oxide and 3g cross-linking agent genipin to it, at 45 ℃, 400r / min Heating and stirring for 2 hours, after the reaction was finished, ferric oxide modified chitosan was obtained;

[0032] (3)...

Embodiment 2

[0037] A preparation method for a microbial adsorbent for industrial wastewater, comprising the steps of:

[0038] (1) Add 2gFe 3 o 4 Nanoparticles and 8g of aminopropyltriethoxysilane were added to a mixed solvent of 50mL of methanol and 50mL of toluene, mixed evenly, and refluxed in an oil bath at 100°C for 10h. After the reaction, the refluxed product was washed with methanol for 3 times , and carry out vacuum suction filtration on the obtained cleaning product, after the suction filtration is completed, place the suction filtration product in a vacuum drying oven for drying, and grind it into powder after drying to obtain amino-modified ferric oxide;

[0039] (2) 10g of chitosan is added to 100mL, in 10wt% acetic acid solution, stirred and dissolved, then 8g of amino-modified ferric oxide and 4g of cross-linking agent genipin are added thereto, at 45°C, 400r / min Heating and stirring for 2 hours, after the reaction was finished, ferric oxide modified chitosan was obtained...

Embodiment 3

[0045] A preparation method for a microbial adsorbent for industrial wastewater, comprising the steps of:

[0046] (1) Add 2gFe 3 o 4 Nanoparticles and 10g of aminopropyltriethoxysilane were added to a mixed solvent of 50mL of methanol and 50mL of toluene, mixed evenly, and refluxed in an oil bath at 120°C for 8 hours. After the reaction, the refluxed product was washed with methanol for 3 times , and carry out vacuum suction filtration on the obtained cleaning product, after the suction filtration is completed, place the suction filtration product in a vacuum drying oven for drying, and grind it into powder after drying to obtain amino-modified ferric oxide;

[0047] (2) 10g of chitosan is added to 100mL, in 10wt% acetic acid solution, stirred and dissolved, then 6g of amino-modified ferric oxide and 5g of cross-linking agent genipin are added thereto, at 45°C, 400r / min Heating and stirring for 2 hours, after the reaction was finished, ferric oxide modified chitosan was obt...

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PUM

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Abstract

The invention discloses a microbial adsorbent for industrial wastewater and a preparation method thereof.Zeolite-loaded pseudomonas pseudoalcaligenes is coated on an inner layer, a hydrogel shell layer is loaded with bacillus subtilis, and the two strains are fixed to different carriers respectively, so that growth of the pseudomonas pseudoalcaligenes and the bacillus subtilis is facilitated; in addition, Fe3O4 nano-particles are fixed on chitosan, then chitosan, polyvinyl alcohol and sodium alginate form a gel structure, the dispersibility of the Fe3O4 nano-particles is better, the Fe3O4 nano-particles are fixed on the chitosan, the Fe3O4 nano-particles are not prone to loss, and the chitosan, polyvinyl alcohol and sodium alginate are mixed to form a gel structure, so that the chitosan, polyvinyl alcohol and sodium alginate are mixed to form the gel structure, and the chitosan, polyvinyl alcohol and sodium alginate are mixed to form the gel structure. The microbial adsorbent can keep stable and lasting wastewater treatment capacity and is good in reusability.

Description

technical field [0001] The invention relates to the technical field of wastewater treatment, in particular to a microbial adsorbent for industrial wastewater and a preparation method thereof. Background technique [0002] Wastewater with high heavy metals, high ammonia nitrogen and high COD mainly comes from the chemical industry, garbage and hydrometallurgy industries. If it is discharged without effective treatment, it will cause great pollution to the environment. At present, the treatment of high concentration ammonia nitrogen and high concentration heavy metal wastewater is a major issue. difficulty. [0003] At present, there are three main types of heavy metal wastewater treatment methods: chemical reaction method, concentration separation method and biological adsorption method. The first category is the removal of heavy metal ions in wastewater through chemical reactions, including neutralization precipitation, sulfide precipitation, ferrite co-precipitation, chemi...

Claims

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Application Information

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IPC IPC(8): C02F3/34C02F101/16C02F101/20
CPCC02F3/348C02F2101/20C02F2101/16Y02W10/10
Inventor 汪周启汪邦国汪邦漫
Owner 江苏利然环保科技有限公司
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