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Biological preparation method of nano copper sulfide based on loading of zinc manganese ferrites

A zinc-manganese-ferro, copper sulfide technology, applied in chemical instruments and methods, chemical/physical processes, water pollutants, etc., can solve the problems of high recycling cost of zinc-manganese batteries, difficult recovery of photocatalysts, low resource utilization, etc. Achieve the effect of good crystal phase, strong photocatalysis, and less environmental pollution

Pending Publication Date: 2019-07-30
BEIJING INSTITUTE OF TECHNOLOGYGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problems of high cost of copper-containing wastewater treatment, low resource utilization, difficulty in photocatalyst recovery, and high recovery cost of zinc-manganese batteries, the present invention proposes a method for loading nano-copper sulfide on zinc-manganese ferrite

Method used

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  • Biological preparation method of nano copper sulfide based on loading of zinc manganese ferrites
  • Biological preparation method of nano copper sulfide based on loading of zinc manganese ferrites
  • Biological preparation method of nano copper sulfide based on loading of zinc manganese ferrites

Examples

Experimental program
Comparison scheme
Effect test

Embodiment example 1

[0036] Implementation case 1: Step 1, preparation of zinc-manganese ferrite

[0037] (1) Determination of the content of zinc ion, manganese ion and iron ion in the biological leach solution of discarded zinc-manganese batteries in the laboratory; Wherein the ratio of manganese ion and zinc ion concentration is controlled at 1.5, and the ratio of manganese ion, zinc ion and iron ion is controlled at 0.5.

[0038] (2) Add manganese source, zinc source, and iron source according to the requirements in step 1 (1), and stir with a magnetic stirrer at room temperature for 24 hours.

[0039] Described manganese source, zinc source, iron source are respectively MnSO 4 , ZnSO 4 , Fe 2 SO 4

[0040] (3) Transfer the solution in step 1 (2) to an autoclave, add coprecipitant to make the pH to 10, and stir thoroughly.

[0041] Described coprecipitant is NaOH

[0042] (4) React the high-pressure reactor in step 1 (3) at a temperature of 180°C for 6 hours; after the reaction, age at ...

Embodiment example 2

[0051] Implementation case 2: Step 1, preparation of zinc-manganese ferrite

[0052] (1) Same as (1) in Step 1 in Implementation Case 1.

[0053] (2) Same as (2) of Step 1 in Implementation Case 1.

[0054] (3) Same as (3) of Step 1 in Implementation Case 1.

[0055] (4) Same as (4) of Step 1 in Implementation Case 1.

[0056] Step 2, preparation of zinc-manganese ferrite-loaded nano-copper sulfide material

[0057] (1) Cultivation of sulfate-reducing bacteria; preparation of medium; solute: 0.6mol / L lactic acid, 14.28g / LNa 2 SO 4 , 1.0g / L NH 4 Cl, 0.5g / L KH 2 PO 4 , 0.5g / L MgSO 4 , 0.1g / L CaCl 2 , 0.5g / L yeast extract powder, and then use 6mol / L NaOH to adjust the pH value of the medium to 7.

[0058] (2) Same as (2) in Step 2 in Implementation Case 1.

[0059] (3) Same as (3) in Step 2 in Implementation Case 1.

[0060] (4) Preparation of zinc-manganese ferrite-loaded nano-copper sulfide material; the EPS in step two (2), the copper precursor in step two (3), and...

Embodiment example 3

[0064] Implementation case 3: Step 1, preparation of zinc-manganese ferrite

[0065] (1) Determination of the content of zinc ion, manganese ion and iron ion in the biological leach solution of discarded zinc-manganese batteries in the laboratory; The concentration ratio of manganese ions and zinc ions is controlled at 2, and the ratio of manganese ions, zinc ions and iron ions is controlled at 0.6.

[0066] (2) Same as (2) of Step 1 in Implementation Case 1.

[0067] (3) Same as (3) of Step 1 in Implementation Case 1.

[0068] (4) Same as (4) of Step 1 in Implementation Case 1.

[0069] Step 2, preparation of zinc-manganese ferrite-loaded nano-copper sulfide material

[0070] (1) Same as (1) in Step 2 in Implementation Case 1.

[0071] (2) Same as (2) in Step 2 in Implementation Case 1.

[0072] (3) Same as (3) in Step 2 in Implementation Case 1.

[0073] (4) Preparation of zinc-manganese ferrite-loaded nano-copper sulfide material; the EPS in step two (2), the copper p...

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Abstract

The invention relates to a method of loading zinc manganese ferrites with nano copper sulfide, in particular to a method of preparing the nano copper sulfide by loading the zinc manganese ferrites prepared through a bioleachate of waste zinc manganese batteries with copper-containing wastewater, and belongs to the field of solid waste recycling. The method comprises the steps of adding a certain quantity of zinc sources, a certain quantity of manganese sources and a certain quantity of iron sources into the bioleachate of the waste zinc manganese batteries to prepare a solution with corresponding ratio, and synthesizing the zinc manganese ferrites through a hydrothermal method; making extracellular polymeric substances, copper precursors and the zinc manganese ferrites in sufficient contact with one another, conducting standing for 4 hours, adding a sodium sulfide solution dropwise, and obtaining the composite material of loading the zinc manganese ferrites with the nano copper sulfide. In the synthesizing process, the waste zinc manganese batteries and the copper-containing wastewater are utilized as the raw materials and are recycled; the composite material has good magnetism andphotocatalysis, can effectively break down organic dyes in water, is convenient to recycle, and has good application prospects.

Description

technical field [0001] The present invention relates to a method for loading nano-copper sulfide on zinc-manganese ferrite, more specifically, relates to a method for loading zinc-manganese ferrite prepared with biological leaching solution of discarded zinc-manganese batteries and preparing nano-copper sulfide prepared with copper-containing wastewater. The copper sulfide method belongs to the field of solid waste resource treatment. Background technique [0002] Copper plays a pivotal role in our production and life, such as chemical industry, non-ferrous smelting, electronic materials and other industries, and is usually used in large quantities, and these applications lead to the generation of copper-containing wastewater. If the copper-containing wastewater is discharged directly, it will not only cause waste of copper resources, but also pollute the environment, causing great harm to crops, the environment and the human body. Large doses of copper are toxic and carcino...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/043C02F1/30C02F101/30
CPCB01J27/043C02F1/30C02F2101/308B01J35/39
Inventor 辛宝平贾纯友杨书辉王佳
Owner BEIJING INSTITUTE OF TECHNOLOGYGY
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