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Antimony-containing wastewater treatment technology

A wastewater treatment and process technology, applied in textile industry wastewater treatment, water/sewage treatment, water treatment parameter control, etc., can solve the problems of high cost, secondary pollution, long treatment time, etc., to reduce dosage and improve response speed , the effect of improving efficiency

Active Publication Date: 2017-09-22
江苏八达科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although these methods have their own characteristics, they all have certain limitations, such as problems such as long processing time, high cost or secondary pollution.

Method used

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  • Antimony-containing wastewater treatment technology
  • Antimony-containing wastewater treatment technology
  • Antimony-containing wastewater treatment technology

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Such as figure 1 As shown, the pretreated antimony-containing wastewater enters the pH adjustment tank, adjusts its pH value to 5.0-6.0, and pumps it to the filter through a pump to remove suspended solids in the wastewater, preventing pollution and clogging of the subsequent three-phase catalytic oxidation tower efficient catalyst. The effluent from the filter enters the circulation absorption tank, which continuously mixes the chlorine dioxide produced by the chlorine dioxide generator into the antimony-containing wastewater, and after being fully mixed in the circulation absorption tank, it enters the three-phase catalytic oxidation tower. Under the action of the high-efficiency catalyst in the three-phase catalytic oxidation tower, chlorine dioxide and oxygen in the compressed air remove the refractory organic matter in the wastewater through the oxidation reaction, reduce the COD in the wastewater, and remove the chroma of the wastewater. The wastewater after cata...

Embodiment 2

[0043] Such as figure 1As shown, the pretreated antimony-containing wastewater enters the pH adjustment tank, adjusts its pH value to 5.5-6.5, and pumps it to the filter to remove suspended solids in the wastewater, preventing pollution and clogging of the subsequent three-phase catalytic oxidation tower efficient catalyst. The effluent from the filter enters the circulation absorption tank, which continuously mixes the chlorine dioxide produced by the chlorine dioxide generator into the antimony-containing wastewater, and after being fully mixed in the circulation absorption tank, it enters the three-phase catalytic oxidation tower. Under the action of the high-efficiency catalyst in the three-phase catalytic oxidation tower, chlorine dioxide and oxygen in the compressed air remove the refractory organic matter in the wastewater through the oxidation reaction, reduce the COD in the wastewater, and remove the chroma of the wastewater. The wastewater after catalytic oxidation ...

Embodiment 3

[0050] Such as figure 1 As shown, the pretreated antimony-containing wastewater enters the pH adjustment tank, adjusts its pH value to 6.0-7.0, and pumps it to the filter to remove suspended solids in the wastewater, preventing pollution and clogging of the subsequent three-phase catalytic oxidation tower efficient catalyst. The effluent from the filter enters the circulation absorption tank, which continuously mixes the chlorine dioxide produced by the chlorine dioxide generator into the antimony-containing wastewater, and after being fully mixed in the circulation absorption tank, it enters the three-phase catalytic oxidation tower. Under the action of the high-efficiency catalyst in the three-phase catalytic oxidation tower, chlorine dioxide and oxygen in the compressed air remove the refractory organic matter in the wastewater through the oxidation reaction, reduce the COD in the wastewater, and remove the chroma of the wastewater. The wastewater after catalytic oxidation...

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PUM

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Abstract

The invention belongs to the technical field of wastewater treatment, and discloses an antimony-containing wastewater treatment technology. The technology comprises the steps that the pH value of the pretreated antimony-containing wastewater is adjusted to 5.0-7.0; the wastewater is intensively mixed with chlorine dioxide; the wastewater mixed with the chlorine dioxide is introduced into a tri-phase catalysis oxidation tower for an oxidation reaction; the obtained wastewater is treated through an antimony-removal reactor. COD in the water obtained after the wastewater is treated through the antimony-containing wastewater treatment technology is greatly reduced, the water has good biodegradability, so that a very large biochemical pool does not need to be built, and the adjustment period can be also greatly reduced; the wastewater obtained after biochemical treatment can completely reach the standards and is discharged, and the contaminants can be reduced to a very low level, and a good environmental effect is achieved.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a process for treating antimony-containing wastewater. Background technique [0002] Antimony is a non-renewable non-ferrous metal. Antimony and its compounds are widely used in various fields such as ceramics, enamel, rubber, pigments, semiconductor components, glass, and alloys. However, antimony is not an essential element for living organisms, has cumulative toxicity and carcinogenicity, and has been listed as a priority pollutant by the US Environmental Protection Agency (EPA) and the European Union (EU). [0003] The printing and dyeing industry has always been an important industry in the eastern coastal areas. In textile printing and dyeing, antimony-containing catalysts, such as antimony acetate and antimony glycol, are often used in order to improve the conversion rate of raw materials when synthesizing polyester fibers. However, during the sy...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04B01J23/89C02F101/20C02F101/30C02F103/30
CPCB01J23/8986C02F1/001C02F1/66C02F1/725C02F1/74C02F1/763C02F9/00C02F2101/20C02F2101/308C02F2103/30C02F2209/08
Inventor 姚春秀郭亚群邵震周顺明
Owner 江苏八达科技股份有限公司
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