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Method for adsorbing and stripping off antimony from antimony-containing wastewater

A waste water, neutral technology, applied in the field of antimony recovery, can solve the problems of antimony stripping (difficult separation, low adsorption removal efficiency, low adsorption removal efficiency, etc., achieve high use value and application prospect, improve adsorption removal efficiency, adsorption removal high efficiency effect

Pending Publication Date: 2019-10-11
JIAXING CHANGRUN LINE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] 1. General-purpose ion exchange resins have weak adsorption capacity for antimony in antimony-containing wastewater, and the adsorption and removal efficiency is low;
[0008] 2. After the ion exchange resin adsorbs antimony, the stripping (separation) of antimony is more difficult, and the regeneration of the resin is more difficult, thus lowering the efficiency of further adsorption and removal

Method used

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  • Method for adsorbing and stripping off antimony from antimony-containing wastewater

Examples

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Effect test

Embodiment 1

[0039]A method for adsorbing and stripping antimony from antimony-containing wastewater, comprising the following steps:

[0040] S1. Using an ion exchange resin loaded with manganese-zirconium to adsorb antimony in antimony-containing wastewater; the concentration of antimony in the antimony-containing wastewater is 0.05-1g / L;

[0041] S2, using the composite regeneration eluent to elute the ion exchange resin loaded with manganese-zirconium after absorbing antimony in step S1, strip the antimony out, enter the solution, and make the ion-exchange resin loaded with manganese-zirconium after absorbing antimony The exchange resin is regenerated, and the antimony entering the solution is used for subsequent antimony recycling;

[0042] Wherein, in step S1, the preparation method of the ion exchange resin loaded with manganese-zirconium comprises the following steps:

[0043] A1. Preparation of manganese-zirconium loading solution:

[0044] Zirconium oxynitrate hydrate (ZrO(NO3)...

Embodiment 2

[0058] A method for adsorbing and stripping antimony from antimony-containing wastewater, comprising the following steps:

[0059] S1, using an ion exchange resin loaded with manganese-zirconium to adsorb antimony in the antimony-containing wastewater; the concentration of antimony in the antimony-containing wastewater is 0.05g / L;

[0060] S2, using the composite regeneration eluent to elute the ion exchange resin loaded with manganese-zirconium after absorbing antimony in step S1, strip the antimony out, enter the solution, and make the ion-exchange resin loaded with manganese-zirconium after absorbing antimony The exchange resin is regenerated, and the antimony entering the solution is used for subsequent antimony recycling;

[0061] Wherein, in step S1, the preparation method of the ion exchange resin loaded with manganese-zirconium comprises the following steps:

[0062] A1. Preparation of manganese-zirconium loading solution:

[0063] Zirconyl nitrate hydrate (ZrO(NO3)2...

Embodiment 3

[0075] A method for adsorbing and stripping antimony from antimony-containing wastewater, comprising the following steps:

[0076] S1, using an ion exchange resin loaded with manganese-zirconium to adsorb antimony in the antimony-containing wastewater; the concentration of antimony in the antimony-containing wastewater is 1g / L;

[0077] S2, using the composite regeneration eluent to elute the ion exchange resin loaded with manganese-zirconium after absorbing antimony in step S1, strip the antimony out, enter the solution, and make the ion-exchange resin loaded with manganese-zirconium after absorbing antimony The exchange resin is regenerated, and the antimony entering the solution is used for subsequent antimony recycling;

[0078] Wherein, in step S1, the preparation method of the ion exchange resin loaded with manganese-zirconium comprises the following steps:

[0079] A1. Preparation of manganese-zirconium loading solution:

[0080] Zirconyl nitrate hydrate (ZrO(NO3)2·6H...

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Abstract

The invention discloses a method for adsorbing and stripping off antimony from antimony-containing wastewater. The method includes the following steps of S1, adsorbing antimony in the antimony-containing wastewater through ion exchange resin loaded with manganese and zirconium; S2, eluting the ion exchange resin loaded with manganese and zirconium obtained after antimony adsorption in the step S1through compound regenerated eluent to strip off antimony and make the antimony enter a solution so that the antimony-adsorbed ion exchange resin loaded with manganese and zirconium can be regeneratedand the antimony entering the solution can be used for subsequent antimony recycling. According to the method, the antimony in the antimony-containing wastewater is adsorbed through the specially-made ion exchange resin loaded with manganese and zirconium, the adsorption capacity of the antimony in the antimony-containing wastewater is high, the adsorption speed is high, and the adsorption removal efficiency is high; after antimony adsorption, the ion exchange resin is eluted through the special compound regenerated eluent, the antimony is rapidly and efficiently stripped off, and the adsorption and removal efficiency of the antimony in the antimony-containing wastewater is further improved.

Description

technical field [0001] The invention relates to the technical field of antimony recovery from antimony-containing wastewater, in particular to a method for absorbing and stripping antimony from antimony-containing wastewater. Background technique [0002] Antimony is a non-ferrous metal widely used in industry and has important economic value. As a non-essential toxic metal element for organisms, antimony can cause damage to the human liver and heart, and even lead to poisoning and cancer. The mining and smelting of antimony ore will produce a large amount of wastewater containing high concentration of antimony. If it is discharged directly without treatment, it will cause serious pollution to water bodies and endanger organisms and human health. The control limit of antimony in my country's "Drinking Water Sanitation Standard" (GB5749-2006) is 0.005mg / L. On May 16, 2014, the Ministry of Environmental Protection and the General Administration of Quality Supervision, Inspec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/42C02F101/20
CPCC02F1/42C02F2101/20C02F2303/16
Inventor 陆建华卓明李公金徐正梁林方英
Owner JIAXING CHANGRUN LINE CO LTD
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