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Treatment method for manganese ore wastewater

A treatment method and wastewater technology, which is applied in the fields of mining wastewater treatment, water/sewage multi-stage treatment, water/sludge/sewage treatment, etc., can solve the problems of polluting the environment, affecting ecology, manganese ore wastewater treatment difficulties, etc., and achieve treatment efficiency High, simplified processing, good processing effect

Inactive Publication Date: 2016-02-03
贵州万山兴隆锰业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention aims to provide a treatment method for manganese ore wastewater to solve the problems of difficult treatment of manganese ore wastewater, environmental pollution, and ecological impact

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] A treatment method for manganese ore wastewater, the method may further comprise the steps:

[0022] a. Adjustment: add lime to the manganese ore waste water, control the pH value of the waste water in the reaction process > 9.5, and the reaction time is 20 minutes;

[0023] b. Precipitation: Stir the reacted wastewater clockwise at a linear speed of 5m / s for 5 minutes, then put the wastewater into a sedimentation tank and let it stand for 25 minutes to remove the MnO produced by the reaction. 2 separated and excluded;

[0024] c. Irradiation: Ultraviolet irradiation treatment is carried out on the supernatant of wastewater, the irradiation distance is 20-25cm, and the irradiation time is 5-10min;

[0025] d. Secondary adjustment: add potassium permanganate to the irradiated supernatant, continue to stir for 5 minutes, and then let stand for 20 minutes;

[0026] e. Coagulation: Add ferric chloride and ferrous sulfate to the supernatant, continue stirring for 10 minute...

Embodiment 2

[0029] A treatment method for manganese ore wastewater, the method may further comprise the steps:

[0030] a. Adjustment: Add NaOH to the manganese ore wastewater to control the pH value of the wastewater during the reaction process> 9.5, and the reaction time is 25 minutes;

[0031] b. Precipitation: Stir the reacted wastewater clockwise at a linear speed of 10m / s for 10 minutes, then put the wastewater into a sedimentation tank and let it stand for 25 minutes to remove the MnO produced by the reaction. 2 separated and excluded;

[0032] c. Irradiation: Ultraviolet irradiation treatment is carried out on the supernatant of wastewater, the irradiation distance is 25cm, and the irradiation time is 10min;

[0033] d. Secondary adjustment: add potassium permanganate to the irradiated supernatant, continue stirring for 10 minutes, and then let stand for 20 minutes;

[0034] e. Coagulation: Add ferric chloride and ferrous sulfate to the supernatant, continue stirring for 10 minu...

Embodiment 3

[0037] A treatment method for manganese ore wastewater, the method may further comprise the steps:

[0038] a. Adjustment: Add NaOH to the manganese ore wastewater to control the pH value of the wastewater during the reaction process> 9.5, and the reaction time is 23min;

[0039] b. Precipitation: Stir the reacted wastewater clockwise at a linear speed of 8m / s for 8 minutes, then put the wastewater into a sedimentation tank and let it stand for 25 minutes to remove the MnO produced by the reaction 2 separated and excluded;

[0040] c. Irradiation: Ultraviolet irradiation treatment is carried out on the supernatant of waste water, the irradiation distance is 23cm, and the irradiation time is 8min;

[0041] d. Secondary adjustment: add potassium permanganate to the irradiated supernatant, continue stirring for 8 minutes, and then let stand for 20 minutes;

[0042] e. Coagulation: Add ferric chloride and ferrous sulfate to the supernatant, continue stirring for 10 minutes and t...

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Abstract

The invention discloses a treatment method for manganese ore wastewater. The method comprises the following steps of: regulation, precipitation, irradiation, secondary regulation, coagulation and discharge. The treatment method adopts a twice-regulation method so as to effectively convert Mn2+ in water into MnO2, thereby fulfilling the aim of removing manganese; by adding a flocculant in the treatment process, the treatment process is simplified, and flocculating constituents can be rapidly formed so as to be rapidly removed from the water; by matching of irradiation disinfection of ultraviolet rays, influence of wastewater drainage on the environment is greatly reduced; the method has a good treatment effect and high treatment efficiency, adopts a simple process and is a superior treatment method for the manganese ore wastewater.

Description

technical field [0001] The invention relates to the technical field of comprehensive utilization of waste gas and waste liquid, and in particular relates to a treatment method for manganese ore wastewater. Background technique [0002] Manganese is one of the important heavy metal monitoring indicators for environmental water pollutants. Since most of the manganese deposits in my country are small and medium-sized deposits, the scale of manganese mine construction is restricted, and the production capacity of existing manganese mines is generally small. The annual consumption of manganese ore in the country is more than 10 million tons, ranking first in the world. However, my country's manganese ore resources are relatively scarce, and there are few rich ores. Due to the constraints of equipment and processing technology in the development and deep processing of a large number of manganese ores, my country's manganese-containing waste and manganese-containing wastewater pollu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/08C02F103/10
Inventor 肖军
Owner 贵州万山兴隆锰业有限公司
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