Microbial capsule for valuable metal recovery and preparation method and application thereof

A technology of valuable metals and microorganisms, which is applied in the field of microbial capsules for recovery of valuable metals and its preparation, can solve problems such as the difficulty in recovering fly ash metals, and achieve the promotion of material exchange and information transmission, stable directional reproduction, and increased diversity Effect

Pending Publication Date: 2022-05-13
CHENGDU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the above-mentioned prior art, the present invention provides a microbial capsule for recovery of valuable metals and its preparation method and application, so as to solve the technical problem of difficult recovery of valuable metals in fly ash

Method used

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  • Microbial capsule for valuable metal recovery and preparation method and application thereof
  • Microbial capsule for valuable metal recovery and preparation method and application thereof
  • Microbial capsule for valuable metal recovery and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A kind of microbial capsule that is used for valuable metal recovery, it makes through the following steps:

[0040] S1: Perform interlayer domain amplification and surface functionalization treatment on the carrier; the treatment specifically includes the following steps:

[0041] SS1: Mix kaolin and water at a material-to-liquid ratio of 9g:100mL to 1.3×10 5The energy of J is ultrasonically irradiated for 10 minutes, then the kaolin is filtered out and dried at 100°C for 10 minutes;

[0042] SS2: Put the kaolin treated by SS1 in a quartz tube, evacuate the helium, and heat it in a muffle furnace at 800°C for 30s;

[0043] SS3: Mix the modifier with the SS2-treated kaolin at a mass ratio of 1:22.5, and then immerse the mixture in 45wt% H 3 PO 4 Soak in the solution for 24 hours, then take out the kaolin and dry it at 100°C for 10 minutes to complete the treatment of the carrier; the modifier is mixed with dialkyl dimethyl quaternary ammonium salt (DHT21) and humic a...

Embodiment 2

[0054] A kind of microbial capsule that is used for valuable metal recovery, it makes through the following steps:

[0055] S1: Perform interlayer domain amplification and surface functionalization treatment on the carrier; the treatment specifically includes the following steps:

[0056] SS1: Mix montmorillonite and water at a ratio of 8g:100mL to liquid, and use 1.0×10 5 J energy ultrasonic radiation for 12min, then filter out the montmorillonite and dry at 120°C for 5min;

[0057] SS2: Place the montmorillonite treated with SS1 in a quartz tube, evacuate the helium, and heat it in a muffle furnace at 750°C for 40s;

[0058] SS3: Mix the modifier with the montmorillonite treated with SS2 at a mass ratio of 1:20, and then immerse the mixture in 45wt% H 3 PO 4 Soak in the solution for 24 hours, then take out the montmorillonite and dry it at 120°C for 5 minutes to complete the treatment of the carrier; the modifier is mixed with dialkyl dimethyl quaternary ammonium salt (DH...

Embodiment 3

[0069] A kind of microbial capsule that is used for valuable metal recovery, it makes through the following steps:

[0070] S1: Perform interlayer domain amplification and surface functionalization treatment on the carrier; the treatment specifically includes the following steps:

[0071] SS1: Mix kaolin and water at a ratio of 8g:100mL to liquid, and use 1.5×10 5The energy of J is ultrasonically irradiated for 8 minutes, then the kaolin is filtered out and dried at 90°C for 10 minutes;

[0072] SS2: Put the kaolin treated by SS1 in a quartz tube, evacuate the helium, and heat it in a muffle furnace at 850°C for 20s;

[0073] SS3: Mix the modifier with the SS2-treated kaolin at a mass ratio of 1:25, and then immerse the mixture in 45wt% H 3 PO 4 Soak in the solution for 24 hours, then take out the kaolin and dry it at 90°C for 10 minutes to complete the treatment of the carrier; the modifier is mixed with dialkyl dimethyl quaternary ammonium salt (DHT21) and humic acid in a...

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Abstract

The invention discloses a microbial capsule for valuable metal recovery and a preparation method and application thereof. The preparation method of the microbial capsule comprises the following steps: firstly, respectively loading the microbial strains and the substances for providing nutrients for homogenization of microorganisms onto the carriers, and then wrapping the two carriers with the non-toxic polymer high-molecular material to prepare the microbial capsule. The diversity of functional microorganisms is improved by synthesizing microbiome. By the adoption of the scheme, substance exchange and information transmission among microorganisms can be promoted, the microorganisms can be rapidly and directionally propagated in the capsule and maintain relative stability, and the biological method metal recovery efficiency is improved.

Description

technical field [0001] The invention belongs to the technical field of metal recovery, and in particular relates to a microbial capsule for recovery of valuable metals, a preparation method and application thereof. Background technique [0002] Fly ash is the main solid waste produced after pulverized coal is burned. It is usually piled in the open air in the fly ash pool near the thermal power plant, which not only occupies a large amount of land, but also will leach out harmful substances such as heavy metals after contact with rainwater. Elements (lead, chromium, nickel, cobalt, etc.) and radioactive elements pollute nearby water bodies or farmland, posing a huge threat to the safety of the surrounding ecological environment and human health. In addition, as a new type of mineral resource, fly ash can comprehensively extract valuable elements such as aluminum, iron, titanium, gallium and germanium. The concentrations of these elements are usually higher than in normal ec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12N11/14C12N11/082C12N11/04C12N11/089C22B7/02C22B3/18C22B17/00C22B30/04C22B21/00C22B47/00C22B19/30C22B15/00C22B34/22C22B34/34C22B11/00C22B13/00C22B59/00C12R1/385C12R1/01
CPCC12N11/14C12N11/082C12N11/04C12N11/089C22B7/02C22B3/18C22B7/006C22B17/04C22B30/04C22B21/0023C22B47/00C22B19/30C22B15/0065C22B34/22C22B34/34C22B11/044C22B13/045C22B59/00
Inventor 黄进杨振东马文标杨博闻曾丽王鸿斌郑旭颖
Owner CHENGDU UNIV
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