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Liquid chelating agent applied to household garbage landfilling standard and preparation method thereof

A chelating agent and liquid technology, which is applied in the field of liquid chelating agent and its preparation of living landfill standards, can solve the problems of a large amount of waste water, waste gas and solid waste pollutants, affecting living and living environment, waste of recyclable resources, etc. The effects of unstable chelation, convenient configuration, and simple operation

Inactive Publication Date: 2021-06-01
嘉兴沃特泰科环保科技股份有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In 2016, the annual production of domestic waste in 214 large and medium-sized cities at home and abroad was 18850.5×104t. A large amount of domestic waste produced a large amount of waste water, waste gas and solid waste pollutants due to improper treatment, which directly affected people's living and living environment. Caused a lot of waste of recyclable resources
[0004] However, there is still a lack of a liquid chelating agent that is simple to use and operate, can react quickly (with lead), can be stable for a long time, and can make metals such as lead reach the standard for a long time for a long time.

Method used

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  • Liquid chelating agent applied to household garbage landfilling standard and preparation method thereof
  • Liquid chelating agent applied to household garbage landfilling standard and preparation method thereof
  • Liquid chelating agent applied to household garbage landfilling standard and preparation method thereof

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preparation example Construction

[0060] The present invention also provides a kind of preparation method that is used for the liquid chelating agent of domestic landfill standard, and described preparation method comprises the following steps:

[0061] S1, prepare potassium thiram, dipotassium hydrogen phosphate and liquid sodium sulfide in parts by weight;

[0062] S2, after first mixing Potassium Potassium and Dipotassium Hydrogen Phosphate, complete a stirring;

[0063] S3, then add liquid sodium sulfide to above-mentioned material, complete secondary stirring;

[0064] S4. Then heat-preserve and stand still for 20-30 minutes, and after cooling to room temperature, the liquid chelating agent used for domestic landfill standards is obtained.

[0065] Preferably, the primary stirring time is 15-20 min, the stirring speed is 500-600 r / min, the secondary stirring time is 10-14 min, and the stirring speed is 400-500 r / min.

Embodiment 1

[0067] A liquid chelating agent used for domestic landfill standards is made of the following raw materials in parts by weight:

[0068] Potassium 65 parts,

[0069] Dipotassium hydrogen phosphate 18 parts,

[0070] 9 parts of liquid sodium sulfide.

[0071]In the present embodiment, for the preparation method of the liquid chelating agent of life landfill standard, described preparation method comprises the following steps:

[0072] S1, prepare potassium thiram, dipotassium hydrogen phosphate and liquid sodium sulfide in parts by weight;

[0073] S2, after first mixing Potassium Potassium and Dipotassium Hydrogen Phosphate, complete a stirring;

[0074] S3, then add liquid sodium sulfide to above-mentioned material, complete secondary stirring;

[0075] S4, then heat preservation and standing for 30 minutes, and after cooling to room temperature, the liquid chelating agent used for domestic landfill standards is obtained.

[0076] In this embodiment, the primary stirring...

Embodiment 2

[0078] A liquid chelating agent used for domestic landfill standards is made of the following raw materials in parts by weight:

[0079] Potassium thiram 75 parts,

[0080] Dipotassium hydrogen phosphate 21 parts,

[0081] 11 parts of liquid sodium sulfide.

[0082] In the present embodiment, for the preparation method of the liquid chelating agent of life landfill standard, described preparation method comprises the following steps:

[0083] S1, prepare potassium thiram, dipotassium hydrogen phosphate and liquid sodium sulfide in parts by weight;

[0084] S2, after first mixing Potassium Potassium and Dipotassium Hydrogen Phosphate, complete a stirring;

[0085] S3, then add liquid sodium sulfide to above-mentioned material, complete secondary stirring;

[0086] S4, then heat preservation and standing for 20 minutes, after cooling to room temperature, the liquid chelating agent for domestic landfill standards is obtained.

[0087] In this embodiment, the primary stirring...

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Abstract

The invention provides a liquid chelating agent applied to household garbage landfilling standard. The liquid chelating agent is prepared from the following raw materials in parts by weight: 60-80 parts of potassium dimethyldithiocarbamate, 16-24 parts of dipotassium phosphate and 7.5-12.5 parts of liquid sodium sulfide. The liquid chelating agent applied to the household garbage landfilling standard is easy to use and operate, can react with lead quickly, can be stable for a long time, and can enable metals such as lead and the like to reach the standard for a long time; in addition, the liquid chelating agent is simple in components, easily available in raw materials, convenient to prepare and low in cost, and is suitable for large-scale industrial application.

Description

technical field [0001] The invention relates to the field of chelating agents, in particular to a liquid chelating agent used in domestic landfill standards and a preparation method thereof. Background technique [0002] Municipal solid waste refers to the solid waste generated in the daily life of the city or the activities that provide services for the daily life of the city and the solid waste that is regarded as municipal solid waste according to laws and administrative regulations. In 2016, the annual production of domestic waste in 214 large and medium-sized cities at home and abroad was 18850.5×104t. A large amount of domestic waste produced a large amount of waste water, waste gas and solid waste pollutants due to improper treatment, which directly affected people's living and living environment. Caused the waste of a large amount of recyclable resources. Especially in recent years, the phenomenon of garbage siege, the stench of household garbage treatment plants, a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09B1/00A62D3/33
CPCA62D3/33B09B1/004
Inventor 钟奇军周卫华陈谦王小东
Owner 嘉兴沃特泰科环保科技股份有限公司