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Treatment method of chromate waste water

A treatment method and technology for chromium wastewater, which can be used in water/sewage treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., and can solve problems such as pollution hazards

Inactive Publication Date: 2019-12-20
朱建伟
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Chromium ions are very harmful to the human body.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A method for treating chromium-containing wastewater is to adsorb the chromium-containing wastewater through a membrane structure loaded with maghemite nanoparticles, and then add barium sulfate to the wastewater to react for 20-30 minutes, and complete the treatment after filtering.

[0018] The flow rate of chromium-containing wastewater is 10ml / min.

Embodiment 2

[0020] Similar to Example 1, the film structure includes a base layer and a load increase, and the load layer is loaded with maghemite nanoparticles.

[0021] The thickness of the load layer is 10-20 mm.

[0022] The flow rate of chromium-containing wastewater is 8ml / min.

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Abstract

The invention discloses a treatment method of chromate waste water. The treatment method comprises the steps that the chromate waste water is adsorbed through a film structure loaded with maghemite nano-particles, then barium sulfate is added into the waste water for reaction for 20-30 min, and after filtering, treatment is completed. According to the treatment method of the chromate waste water,chromium ions in the waste water can be effectively adsorbed and treated through the special method.

Description

Technical field [0001] The invention relates to the field of sewage treatment equipment, in particular to a method for treating chromium-containing wastewater. Background technique [0002] In recent years, with the rapid development of modern industry, a large amount of untreated or untreated sewage is directly discharged into rivers, which has caused serious deterioration of domestic water quality, and water quality problems have become increasingly prominent. Heavy metal ion pollution is particularly prominent in some places. The arsenic-containing wastewater is mainly produced by the burning of coal in the factory. The main method for treating this type of wastewater is to first lead the water to the alkali-adding conditioning tank. This step is to prepare for the next process. After layer-by-layer deep treatment, it can only be used after reaching relevant standards. emission. [0003] Cement is an indispensable element of basic industries. Cement is used in various fields, ...

Claims

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Application Information

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IPC IPC(8): C02F9/04C02F101/22
CPCC02F1/281C02F1/5245C02F2101/22
Inventor 朱建伟
Owner 朱建伟
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