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Method for removing germanium in sewage

A sewage and wastewater technology, applied in water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc. The effect of simple process, low operating cost and simple operation

Inactive Publication Date: 2013-04-03
CHANGZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The notification number is CN86106414, which discloses a method for treating germanium-containing wastewater by electrolysis. The water quality after treatment by this method is good, and germanium can be recovered. The equipment occupies a large area, the process flow is complicated, and the one-time investment is high.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0013] Implementation case 1:

[0014] (1) Get 100mL of waste hydrochloric acid with a mass content of 10% aluminum oxide and place it in a 500mL triangular round-bottomed flask, the waste hydrochloric acid has an acidity of 10.5% and a pH of 1.0;

[0015] (2) add 5g potassium aluminum sulfate dodecahydrate, 6g magnesium sulfate, 50g water to flask;

[0016] (3) Heating and stirring constantly, when the temperature rises to 68°C, add 50g of calcium aluminate powder;

[0017] (4) continue to heat up, react 4 hours when temperature rises to 110 ℃;

[0018] (5) adding 5g iron trichloride and 6g octadecyltrimethylammonium bromide in above-mentioned reactant, stirring and mixing;

[0019] (6) Get the above-mentioned substances and add them to 30mg / L germanium-containing waste water, the amount of the above-mentioned substances added is 100mg / L, stir rapidly for 10 minutes, then slowly stir for 30 minutes, let stand, settle, and discharge the water into the clear water pool , the...

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PUM

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Abstract

The invention discloses a method for removing germanium in sewage and belongs to the field of sewage treatment in environmental protection. The method comprises the following steps of: placing aluminum trioxide into a triangular round-bottom flask; adding aluminum potassium sulfate dodecahydrate, magnesium sulfate and water into the flask; heating and continuously agitating; when the temperature is raised, adding calcium aluminate powder; adding ferric trichloride and octadecy trimethyl ammonium bromide into reactants and agitating and mixing uniformly; adding the substances into wastewater containing the germanium; and agitating, standing, precipitating and discharging effluent into a clean water pool. The method disclosed by the invention is simple in process flow, simple in operation, lower operation cost, no sludge, high germanium removing effect and the like; and no sediment is generated and secondary pollution is not caused, and metal oxides in the effluent and the wastewater can be recycled.

Description

technical field [0001] The invention relates to a method for removing germanium in sewage, in particular to treating waste water with a germanium concentration in the range of 10-100 mg / L, and belongs to the field of waste water treatment in environmental protection. Background technique [0002] The discharge of wastewater containing heavy metal germanium is a serious hazard to human health and industrial and agricultural activities. It has hazards such as persistence, high toxicity, and serious pollution. Once it enters the environment, it cannot be biodegraded. Most of it participates in the food chain cycle and eventually accumulates in organisms. , destroy the normal physiological and metabolic activities of organisms, and endanger human health. With the increasing production activities such as mining, smelting and processing of heavy metals, the amount and types of heavy metal germanium wastewater produced have greatly increased, causing serious environmental pollution...

Claims

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Application Information

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IPC IPC(8): C02F1/62
Inventor 郭迎庆冯欣欣杨文君
Owner CHANGZHOU UNIV
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