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Preparation method of adsorbent for removing manganese ions in industrial wastewater

A technology for industrial wastewater and adsorbents, applied in chemical instruments and methods, adsorption of water/sewage treatment, water pollutants, etc., to achieve good adsorption performance, good adsorption effect, and large specific surface area

Inactive Publication Date: 2016-12-14
广西南宁桂尔创环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the problems existing in the existing adsorbents, the present invention provides an adsorbent for removing manganese ions from industrial wastewater with large specific surface area, large adsorption capacity, high adsorption efficiency, low cost, simple preparation process, safety and environmental protection

Method used

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  • Preparation method of adsorbent for removing manganese ions in industrial wastewater

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Embodiment 1

[0030] A preparation method for removing manganese ion adsorbent from industrial wastewater, the specific operation steps are as follows:

[0031] (1) Crush 100kg of grapefruit peel with a water content of 10% to 40 mesh, add 3mol / L sodium hydroxide solution to soak for 6 hours, then wash the grapefruit peel with water until neutral to obtain grapefruit peel cellulose; Add 12kg of methyl acrylate to the cellulose, then add 150kg of water, mix well, and dry at 80°C for 2 hours to obtain modified pomelo peel;

[0032] (2) Take 50kg of water hyacinth powder and 8kg of thiourea and add them to an ultrasonic stirrer, then add 100kg of water, react ultrasonically for 60min at an ultrasonic frequency of 40kHz, place the reacted paste in an oven at 80°C for 1h, and heat and dry it for 1h. water hyacinth powder;

[0033] (3) Add the above-mentioned modified pomelo peel and modified water hyacinth powder into the mixer, add 6 kg of ammonium cerium nitrate and 5 kg of cyclodextrin, then...

Embodiment 2

[0035] A preparation method for removing manganese ion adsorbent from industrial wastewater, the specific operation steps are as follows:

[0036] (1) Crush 100kg of grapefruit peel with a water content of 10% to 40 mesh, add 5mol / L sodium hydroxide solution to soak for 4 hours, then wash the grapefruit peel with water until it becomes neutral, and obtain grapefruit peel cellulose; Add 10kg of methyl acrylate to the cellulose, then add 130kg of water, mix well, and dry at 60°C for 3 hours to obtain modified pomelo peel;

[0037] (2) Take 40kg of water hyacinth powder and 5kg of thiourea and add them to an ultrasonic stirrer, then add 80kg of water, and conduct an ultrasonic reaction at an ultrasonic frequency of 60kHz for 30min, place the reacted paste in an oven at 70°C and heat and dry it for 2h. water hyacinth powder;

[0038] (3) Add the above-mentioned modified pomelo peel and modified water hyacinth powder to the mixer, add 5 kg of ammonium cerium nitrate and 8 kg of cy...

Embodiment 3

[0040] A preparation method for removing manganese ion adsorbent from industrial wastewater, the specific operation steps are as follows:

[0041] (1) Crush 100kg of grapefruit peel with a water content of 10% to 60 mesh, add 3mol / L sodium hydroxide solution to soak for 6 hours, then wash the grapefruit peel with water until neutral to obtain grapefruit peel cellulose; Add 15kg of methyl acrylate to the cellulose, then add 120kg of water, mix evenly, and dry at 70°C for 2.5 hours to obtain modified pomelo peel;

[0042] (2) Take 60 kg of water hyacinth powder and 8 kg of thiourea and add them to an ultrasonic stirrer, then add 120 kg of water, and conduct an ultrasonic reaction at an ultrasonic frequency of 50 kHz for 45 min, place the reacted paste in an oven at 70 ° C for 2 h, and heat and dry it to obtain Modified water hyacinth powder;

[0043] (3) Add the above-mentioned modified pomelo peel and modified water hyacinth powder into the mixer, add 10 kg of ammonium cerium ...

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Abstract

The invention discloses a preparation method of an adsorbent for removing manganese ions in industrial wastewater. The preparation method includes the steps that shaddock peel is smashed, added into a sodium hydroxide solution to be soaked and then washed to be neutral with water, and shaddock peel cellulose is obtained; methyl acrylate is added into the shaddock peel cellulose, water is added, drying is carried out for 2-3 h at 60-80 DEG C, and modified shaddock peel is obtained; water hyacinth powder and thiourea are taken and added into an ultrasonic stirrer, then a proper amount of water is added for an ultrasonic reaction, paste obtained after the reaction is put into an oven at 70-80 DEG C to be heated and dried for 1-2 h, and modified water hyacinth powder is obtained; the modified shaddock peel and the modified shaddock peel powder are added into the stirrer, ceric ammonium nitrate and cyclodextrin are added, then water is added to blend the mixture into paste, the paste is put into microwave heating equipment, microwave treatment is carried out for 30-60 min at 80-100 DEG C, the paste is cooled to the room temperature and ground, and the manganese ion adsorbent is obtained. The adsorbent prepared with the method has a good adsorption property, the specific surface area of the adsorbent is 200-300 m<2> / g, and the adsorption rate on hexavalent manganese ions is 95% or above.

Description

technical field [0001] The invention relates to the technical field of adsorption materials, in particular to a preparation method of an adsorbent for removing manganese ions from industrial wastewater. Background technique [0002] In recent years, with the development of the heavy metal industry and the arbitrary discharge of heavy metal wastewater without treatment, the content of heavy metal ions in natural water bodies has increased, and water pollution incidents have occurred frequently. Heavy metals are one of the important causes of environmental pollution. When heavy metals enter the environment, they cannot be biodegraded into harmless substances. At the same time, suspended particles in the water absorb and precipitate heavy metal ions, making the water polluted by heavy metals for a long time. And so it came about. What's more, the heavy metals that exist in living organisms are accumulated and enriched, and they also participate in the cycle of the biosphere, e...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F1/64
CPCB01J20/24B01J2220/4825C02F1/286C02F2101/206
Inventor 凌雪木
Owner 广西南宁桂尔创环保科技有限公司