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Method for processing stibium containing industrial wastewater by aluminium electrode-electric flocculence

A technology for industrial wastewater and aluminum electrodes, which is applied in water/sewage treatment, chemical instruments and methods, flotation water/sewage treatment, etc. Easy to operate effect

Inactive Publication Date: 2009-09-30
INST OF GEOCHEM CHINESE ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But so far, the treatment of antimony ions in antimony-containing industrial wastewater by electrocoagulation has not been reported.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0014] Example 1 Take the wastewater discharged from the ore dressing of Xikuangshan Antimony Mine in Hunan Province as the treatment object

[0015] A 250ml beaker was used as the electrolytic cell, and 200mL of mineral processing wastewater with an initial concentration of antimony ions of 28.611mg / L and an initial concentration of butyl xanthate of 0.3755mg / L was poured into the beaker, and mixed with 0.05M NaOH and 0.05M H 2 SO 4 Adjust the pH of the solution to 2.0, insert the polar plate, and the immersion area is 18cm 2 . The electrodes are bipolarly connected, and the distance between the plates is 1 cm. Turn on the direct current so that the current intensity is a constant value of 166.67A / m 2 , under the stirring of an electromagnetic stirrer, carry out regular electrolysis for 60 minutes, then let it stand for 5 hours, take the supernatant, use atomic fluorescence spectrometry to measure antimony ion concentration, and use ultraviolet-visible spectrophotometer to...

Embodiment 2

[0016] Example 2 Take the simulated antimony-containing industrial wastewater as the treatment object

[0017] A 250ml beaker is used as the electrolytic cell, and 200ml of antimony-containing simulated wastewater (potassium antimony tartrate) with an antimony ion concentration of 21.203mg / L is poured into the beaker, and the solution is mixed with 0.05M NaOH, 0.05M H 2 SO 4 Adjust the pH of the solution to 2.25, insert the polar plate, and the immersion area is 18cm 2 . Electrode connection method: the distance between the plates is 1cm, bipolar connection is adopted, direct current is connected, and the current intensity is a constant value of 166.67A / m 2 , under the stirring of an electromagnetic stirrer, carry out regular electrolysis for 60 minutes, then stand still for 5 hours, take the supernatant after centrifugation, and use atomic fluorescence spectrometry to measure the concentration of antimony ions. It was determined that the concentration of antimony ions in t...

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PUM

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Abstract

The invention discloses a method for processing stibium containing industrial wastewater by aluminium electrode-electric flocculence, and relates to wastewater or sewage treatment. The method comprises the following steps: adopting an aluminium material as electrodes, electrolyzing the containing industrial wastewater of which the pH value is adjusted in advance by direct current in an electrolytic cell, and flocculating stibium ions in the wastewater by floc generated by the electrodes; and then standing, and discharging the wastewater after the wastewater passes detection. The method for processing the stibium containing industrial wastewater by the aluminium electrode-electric flocculence can solve the problem of severe superstandard of the stibium ions in the stibium containing industrial wastewater, remove the stibium in the stibium containing industrial wastewater by over 90 percent to make the concentration of the stibium ions in the treated water less than 3mg / L, realize qualified discharge and improve environmental quality. The method has the advantages of low cost, simple devices and easy operation, and is suitable for antimony ore concentration plants and metallurgical and chemical engineering enterprises related with the stibium.

Description

technical field [0001] The present invention relates to the treatment of waste water or sewage, and furthermore, relates to a method for treating waste water by electrocoagulation, specifically, a method for treating antimony-containing industrial waste water by electrocoagulation. Background technique [0002] As a non-essential element for the human body, antimony is highly toxic to both humans and animals. A large amount of antimony entering the human body will irritate the respiratory tract, esophageal mucous membrane and skin, leading to pulmonary edema, hepatomegaly, and even cancer. Some animal experiments also confirmed the toxicity of antimony. Therefore, antimony is listed as a priority pollutant by the US Environmental Protection Agency and the European Union. Antimony-containing industrial wastewater is often the main source of antimony environmental pollution. For example, during the beneficiation process of antimony ore, the beneficiation wastewater discharg...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/465C02F1/62C02F101/20
Inventor 朱静吴丰昌潘响亮
Owner INST OF GEOCHEM CHINESE ACADEMY OF SCI
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