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A rapid treatment method for lead-zinc-sulfur polymetallic beneficiation complex wastewater

A treatment method, multi-metal technology, applied in the direction of mining wastewater treatment, multi-stage water treatment, water/sewage treatment, etc., can solve the problems of small impact of mineral processing, pollution, etc.

Active Publication Date: 2018-11-30
YUNNAN CHIHONG ZINC & GERMANIUM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to overcome the deficiencies in the background technology, the present invention provides a rapid treatment system for lead-zinc-sulfur polymetallic mineral processing complex wastewater. The system is highly targeted, has good practical effects, and has little impact on mineral processing. All waste water is reused and zero discharge

Method used

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  • A rapid treatment method for lead-zinc-sulfur polymetallic beneficiation complex wastewater
  • A rapid treatment method for lead-zinc-sulfur polymetallic beneficiation complex wastewater
  • A rapid treatment method for lead-zinc-sulfur polymetallic beneficiation complex wastewater

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Embodiment 1

[0023] A beneficiation wastewater in Huize has a pH value of 12.23, contains 321.36 mg / L lead, 12.54 mg / L zinc, 1200 mg / L organic matter, 1000 mg / L hardness, and 800 mg / L suspended matter. Coagulation sedimentation - activated carbon adsorption - second stage coagulation sedimentation - ozone oxidation" process. The wastewater first enters the adjustment tank, and a sodium carbonate solution with a mass concentration of 10% is added to the adjustment tank to remove hardness and precipitate suspended matter. The treated wastewater enters the acid-base adjustment tank to adjust the pH value, and then add Sulfuric acid with a mass concentration of 98%, adjust the pH value to 8, then add heavy metal sedimentation agent, 10% aluminum sulfate, and 0.1% flocculant in the coagulation tank and the first settling tank, and remove the water by coagulation and sedimentation. For metal ions and some organic matter, the treated wastewater uses an acidification pool and an adsorption pool. A...

Embodiment 2

[0025] A beneficiation wastewater in Huize, pH value 13.41, lead 56.27mg / L, zinc 8.54mg / L, organic matter 800mg / L, hardness 1100mg / L, suspended solids 500mg / L, was treated, and the process adopted "regulation-one stage mixing Coagulation sedimentation - activated carbon adsorption - second stage coagulation sedimentation - ozone oxidation" process. The waste water first enters into the adjustment pool, and a sodium carbonate solution with a mass concentration of 12% is added to the adjustment pool to remove hardness and precipitate suspended matter. The treated waste water enters the acid-base adjustment pool to adjust the pH value, and the Sulfuric acid with a mass concentration of 98%, adjust the pH value to 8, then add heavy metal sedimentation agent, 10% aluminum sulfate, and 0.1% flocculant in the coagulation tank and the first settling tank, and remove the water by coagulation and sedimentation. For metal ions and some organic matter, the treated wastewater uses an acidi...

Embodiment 3

[0027] A beneficiation wastewater in Huize, pH value 13.34, lead 28.36mg / L, zinc 9.54mg / L, organic matter 900mg / L, hardness 1300mg / L, suspended matter 700mg / L, was treated, and the process was "adjustment-one stage mixing Coagulation sedimentation - activated carbon adsorption - second stage coagulation sedimentation - ozone oxidation" process. The wastewater first enters the adjustment tank, and a sodium carbonate solution with a mass concentration of 15% is added to the adjustment tank to remove hardness and precipitate suspended solids. The treated wastewater enters the acid-base adjustment tank to adjust the pH value, and then add Sulfuric acid with a mass concentration of 98%, adjust the pH value to 8, then add heavy metal sedimentation agent, 10% aluminum sulfate, and 0.1% flocculant in the coagulation tank and the first settling tank, and remove the water by coagulation and sedimentation. For metal ions and some organic matter, the treated wastewater uses an acidificati...

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Abstract

The invention relates to a rapid treatment system of lead-zinc-sulfur multi-metal ore dressing complicated wastewater, belonging to the technical field of ore dressing wastewater treatment and recycling. In the system, the wastewater first enters an adjusting tank for hardness removal and sedimentation of suspended solids; the treated wastewater enters an acid-base adjusting tank to adjust the pH value; metal ions and organic matters in the water are removed through coagulation sedimentation in a coagulation tank and a primary sedimentation tank; the organic matters in the treated wastewater are removed through acidification and activated carbon adsorption in an acidifying tank and an adsorption tank; the treated wastewater is subjected to secondary sedimentation and ozone oxidation treatment in a coagulation-aid tank, a secondary sedimentation tank and an ozone oxidation tank; and finally, the wastewater enters a clear water tank, the effluent quality is monitored by the clear water tank, and the effluent is conveyed to a high water tank through a pump and recycled to the ore dressing operation through a self-flow way. In the invention, the ore dressing wastewater can be completely recycled, zero discharge of sewage is realized, and the problem of environmental pollution is avoided. The system provided by the invention can realize the treatment and recycling of ore dressing wastewater with high content of suspended solids, high hardness and high concentration of organic matters and has a wide application range.

Description

technical field [0001] The invention belongs to the technical field of beneficiation wastewater treatment and reuse, and in particular relates to a rapid treatment method for lead-zinc-sulfur polymetallic beneficiation complex wastewater. Background technique [0002] Lead-zinc ore beneficiation wastewater usually includes lead, zinc, sulfur concentrate and wastewater generated from dehydration of tailings. The wastewater has a high pH value and contains a large amount of difficult-to-dissolve impurity suspended solids, sulfates such as calcium and magnesium, and the main sources of metal ions are copper sulfate, zinc sulfate, sodium sulfide, sodium hexametaphosphate and other mineral processing agents and dissolved in water during the mineral processing process. Various flotation reagents include: butyl xanthate, ethyl xanthate, ethyl thiazide, octadecylamine acetate, kerosene, pine oil, etc., which are reddish brown, floating with reddish brown Oil and silvery foam. [0...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F9/04C02F103/10C02F101/30C02F101/20
CPCC02F1/281C02F1/283C02F1/52C02F1/5245C02F1/66C02F1/78C02F5/02C02F9/00C02F2101/20C02F2101/30C02F2103/10C02F2209/06C02F2301/08
Inventor 严庆文朱家锐彭天松李国清邵宗琪江锐李兴映保宁卢华生邓鹏翔杨林高泽飞孔祥文杨津王明飞刘志成吴磊
Owner YUNNAN CHIHONG ZINC & GERMANIUM