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Cyanide removal agent and preparation method thereof

A kaolin and modified technology, which is applied in chemical instruments and methods, water/sludge/sewage treatment, water pollutants, etc., can solve problems such as high cost of treatment methods, shortened settling time, and secondary pollution of the environment, achieving Reduce the cost of water quality treatment, accelerate the speed of sedimentation, and have good adsorption effect

Pending Publication Date: 2021-07-09
神美科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Patent Publication No. CN110759393A, named as a cyanide removal agent and its preparation method and application, including activated carbon, FeSO4 7H2O, polyferric sulfate, polyaluminum chloride, SnCl4, CuSO4 5H2O, Co(NO3)2 6H2O and poly Acrylamide; this patent improves the flocculation speed of coking wastewater through the synergistic effect of polyaluminum chloride and polyacrylamide, and effectively shortens the settling time; through the use of activated carbon, the adsorption of organic matter such as pigments in coking wastewater is realized , after the combination of activated carbon and the above-mentioned iron salt and heavy metal salt, the adsorption of uncomplexed cyanide is realized, and the effect of cyanide removal is enhanced. However, the cost of the treatment method is high, and it is easy to bring secondary pollution to the environment, etc. problems, and often fail to meet the standard at the first time, and need to be dealt with twice

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  • Cyanide removal agent and preparation method thereof

Examples

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Effect test

Embodiment 1

[0028] An embodiment of the present invention provides a cyanide removal agent, which includes the following raw materials in parts by weight: 40 parts of modified kaolin, 20 parts of slaked lime, 4 parts of copper sulfate, 6 parts of sodium sulfite, 10 parts of polyaluminum chloride, and 15 parts of bamboo charcoal 2 parts, silicon dioxide 2 parts, sodium alginate 12 parts, ferrous sulfate 10 parts, sodium lignosulfonate 3 parts, carbide slag 5 parts.

[0029] A kind of preparation method of cyanogen removal agent, this preparation method comprises the following steps:

[0030] S1, prepare modified kaolin, its preparation method is as follows:

[0031] 1) Weighing kaolin, sending kaolin into a roasting furnace for roasting, the kaolin roasting temperature is 600-900°C, and the roasting time is 2-5 hours, adding zinc powder, aluminum powder and hydrochloric acid solution to the high-temperature roasted kaolin, Place the above mixture in a sealed container and stir;

[0032] ...

Embodiment 2

[0037] An embodiment of the present invention provides a cyanide removal agent, which includes the following raw materials in parts by weight: 50 parts of modified kaolin, 25 parts of slaked lime, 5 parts of copper sulfate, 8 parts of sodium sulfite, 15 parts of polyaluminum chloride, and 20 parts of bamboo charcoal parts, 3 parts of silicon dioxide, 15 parts of sodium alginate, 15 parts of ferrous sulfate, 4 parts of sodium lignosulfonate, and 6 parts of carbide slag.

[0038] A kind of preparation method of cyanogen removal agent, this preparation method comprises the following steps:

[0039] S1, prepare modified kaolin, its preparation method is as follows:

[0040] 1) Weighing kaolin, sending kaolin into a roasting furnace for roasting, the kaolin roasting temperature is 600-900°C, and the roasting time is 2-5 hours, adding zinc powder, aluminum powder and hydrochloric acid solution to the high-temperature roasted kaolin, Place the above mixture in a sealed container and...

Embodiment 3

[0046] An embodiment of the present invention provides a cyanide removal agent, which includes the following raw materials in parts by weight: 60 parts of modified kaolin, 30 parts of slaked lime, 6 parts of copper sulfate, 10 parts of sodium sulfite, 20 parts of polyaluminum chloride, and 25 parts of bamboo charcoal 4 parts, silicon dioxide 4 parts, sodium alginate 18 parts, ferrous sulfate 20 parts, sodium lignosulfonate 5 parts, carbide slag 7 parts.

[0047] A kind of preparation method of cyanogen removal agent, this preparation method comprises the following steps:

[0048] S1, prepare modified kaolin, its preparation method is as follows:

[0049] 1) Weighing kaolin, sending kaolin into a roasting furnace for roasting, the kaolin roasting temperature is 600-900°C, and the roasting time is 2-5 hours, adding zinc powder, aluminum powder and hydrochloric acid solution to the high-temperature roasted kaolin, Place the above mixture in a sealed container and stir;

[0050]...

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Abstract

The invention provides a cyanide removal agent and a preparation method thereof, and relates to the technical field of water treatment agents. The cyanide removal agent comprises the following raw materials in parts by weight: 40-60 parts of modified kaolin, 20-30 parts of slaked lime, 4-6 parts of copper sulfate, 6-10 parts of sodium sulfite, 10-20 parts of polyaluminum chloride, 15-25 parts of bamboo charcoal, 2-4 parts of silicon dioxide, 12-18 parts of sodium alginate, 10-20 parts of ferrous sulfate, 3-5 parts of sodium lignin sulfonate, 4-6 parts of sodium sulfite and 5-7 parts of carbide slag. Compared with a traditional cyanide removal agent, the prepared cyanide removal agent has the advantages that the removal rate of cyanide in water is increased and is lower than the national allowable emission standard, so that the treatment mode is low in cost, secondary pollution and other problems cannot be caused to the environment, secondary treatment is not needed, and the cyanide removal agent has considerable application prospects.

Description

technical field [0001] The invention relates to the technical field of water quality treatment agents, in particular to a cyanide removal agent and a preparation method thereof. Background technique [0002] Cyanide is highly toxic, especially when in the acidic pH range, it becomes highly toxic hydrocyanic acid. Cyanide-containing wastewater must be treated before it can be discharged into sewers or streams. Because cyanide is highly toxic, the index after treatment must absolutely meet the standard. If it is discharged into the water body, it will cause serious pollution, and the cyanide complex will affect the further treatment of waste water. Therefore, the cyanide in the waste water must be removed first. for further processing. [0003] Patent Publication No. CN110759393A, named as a cyanide removal agent and its preparation method and application, including activated carbon, FeSO4 7H2O, polyferric sulfate, polyaluminum chloride, SnCl4, CuSO4 5H2O, Co(NO3)2 6H2O and ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/00C02F1/28C02F1/52C02F1/56C02F1/66C02F101/18C02F101/20
CPCC02F1/00C02F1/281C02F1/5236C02F1/56C02F1/5263C02F1/66C02F2101/18C02F2101/20
Inventor 朱希坤石伟杰冯春晖王国瑞周继柱马凯王洪娟
Owner 神美科技有限公司
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