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Treatment process of antimony-containing wastewater

A technology for wastewater treatment and process, applied in the field of water treatment, can solve the problems of poor treatment effect and complex treatment process, and achieve the effect of easy promotion and simple process

Inactive Publication Date: 2019-04-05
成都明道食品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the common treatment process is too complicated and the treatment effect is not good

Method used

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Embodiment Construction

[0018] The present invention will be further described in detail in conjunction with specific embodiments below.

[0019] A process for treating antimony-containing wastewater, comprising the following steps:

[0020] Step 1. Filter out the large particle impurities in the antimony-containing water through the large particle impurity filter;

[0021] Step 2. Settling naturally for 3h-5h, after removing the floating foam on the surface, pump the upper clear water into the regulating tank;

[0022] Step 3, add a pH regulator in the ratio of 25g-35g per cubic meter in the regulating tank, and aerate during the regulating process;

[0023] Step 4. After adjusting the pH value to 5-7, add chlorine dioxide to the water according to the ratio of 3:1 or 3:1.5 and mix thoroughly;

[0024] Step 5, send the mixed water into the oxidation tower, and oxidize for 40min-50min;

[0025] Step 6. Perform secondary precipitation on the oxidized water, extract the upper layer of clear water in...

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PUM

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Abstract

The invention discloses a treatment process of antimony-containing wastewater, comprising the steps of I, using a large particulate impurity strainer to filter large particulate impurities in antimony-containing wastewater; II, allowing natural settling for 3-5 h, removing surface scum, and extracting clear supernate to an adjusting tank; III, adding a PH regulator in a ratio of 25-35 g per cubicmeter of the adjusting tank, wherein aerating is performed during adjusting; IV, adjusting PH to 5-7, and adding chlorine dioxide into the water in a ratio of 3:1 or 3:1.5, and mixing well; V, feedingthe mixed water to an oxidation column to allow oxidizing for 40-50 min; VI, subjecting the oxidized water to secondary settling, extracting clear supernate, feeding into a filter tank, and filteringwith an activated carbon strainer; VII, filtering, and discharging. The treatment process herein is economical, simple and efficient.

Description

technical field [0001] The invention belongs to the field of water treatment, and in particular relates to a process for treating antimony-containing wastewater. Background technique [0002] Antimony is a toxic chemical element and a metalloid with metallic luster. It mainly exists in the sulfide mineral stibnite in nature. It is widely used in printing and dyeing industry. With the development of printing and dyeing industry and the application of antimony, printing and dyeing wastewater contains a large amount of antimony. Since antimony is a substance harmful to the human body, the water containing antimony cannot be discharged directly and needs to be strictly treated. At present, the common treatment process is too complicated and the treatment effect is not good. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide an economical, simple and efficient treatment process for antimony-containing wastewater in vie...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/04C02F101/20C02F103/30
CPCC02F9/00C02F1/001C02F1/66C02F1/76C02F2001/007C02F2101/20C02F2103/30C02F2301/08
Inventor 洪文刊
Owner 成都明道食品有限公司