Mine sewage flocculant and preparation method thereof

A flocculant and sewage technology, applied in the field of mine sewage flocculant and its preparation, can solve the problems of human health hazards, general treatment effect, slow sedimentation speed, etc., to reduce odor, promote strong compatibility, and add small amount of effect

Inactive Publication Date: 2018-08-24
NANNING XIAYANG CHEM TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The flocculant used for sewage treatment in the prior art has a certain purification effect on sewage, but there are problems such as general treatment effect, large usage, slow sedimentation speed, secondary pollution, and even pollution to the environment and human body. health hazard

Method used

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  • Mine sewage flocculant and preparation method thereof

Examples

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Effect test

Embodiment 1

[0029] Divide 50-60 parts of melamine into 3 parts, the first part of melamine is 20 parts by weight, the second part of melamine is 18 parts by weight, and the third part of melamine is 18 parts by weight;

[0030] Preparation of modified melamine: Add 6 parts of formaldehyde and 28 parts of ethylene glycol into a three-necked flask, adjust the pH to 8 with triethanolamine, raise the temperature to 64°C while stirring, then add 20 parts of melamine first, and raise the temperature to 80°C. React for 37 minutes, then add 18 parts of melamine, continue the reaction, react for 60 minutes, then add 18 parts of melamine, and react at constant temperature until the water number is 3.0, add 10% caprolactam, react for 8 minutes, cool down to 62 ° C, slowly add 5% H 2 o 2 , and continue to use triethanolamine to adjust the pH value to 8; when the H2O2 reaction is complete (that is, no bubbles are generated in the reaction solution), stop the reaction, lower the temperature to 40°C, ad...

Embodiment 2

[0033] Divide 50-60 parts of melamine into 3 parts, the first part of melamine is 19 parts by weight, the second part of melamine is 20 parts by weight, and the third part of melamine is 20 parts by weight;

[0034] Preparation of modified melamine: Add 5 parts of formaldehyde and 30 parts of ethylene glycol into a three-necked flask, adjust the pH to 8 with triethanolamine, raise the temperature to 63°C while stirring, then add 19 parts of melamine first, and raise the temperature to 75°C. React for 35 minutes, then add 20 parts of melamine, continue the reaction, react for 70 minutes, then add 20 parts of melamine, and react at constant temperature until the water number is 3.0, add 10% caprolactam, react for 10 minutes, cool down to 65 ° C, slowly add 5% H2O2, And continue to use triethanolamine to adjust the pH value to 8; when the H2O2 reaction is complete (that is, no bubbles are generated in the reaction solution), stop the reaction, lower the temperature to 40°C, add 50...

Embodiment 3

[0037] Divide 50-60 parts of melamine into 3 parts, the first part of melamine is 20 parts by weight, the second part of melamine is 18 parts by weight, and the third part of melamine is 20 parts by weight;

[0038] Preparation of modified melamine: Add 5.5 parts of formaldehyde and 20 parts of ethylene glycol into a three-necked flask, adjust the pH to 8 with triethanolamine, raise the temperature to 65°C while stirring, then add 20 parts of melamine first, and raise the temperature to 76°C. React for 40 minutes, then add 18 parts of melamine, continue the reaction, react for 65 minutes, then add 20 parts of melamine, and react at constant temperature until the water number is 3.0, add 10% caprolactam, react for 9 minutes, cool down to 63 ° C, slowly add 5% H2O2, And continue to use triethanolamine to adjust the pH value to 8; when the H2O2 reaction is complete (that is, no bubbles are generated in the reaction solution), stop the reaction, lower the temperature to 40 ° C, add...

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Abstract

The invention belongs to the technical field of sewage treatment and processing, particularly relates to a mine sewage flocculant and a preparation method thereof. The flocculant is prepared from thefollowing components in parts by weight: 20-30 parts of butyl xanthate, 50-60 parts of melamine, 25-35 parts of ferrous sulfate, 20-25 parts of bentonite, 10-15 parts of aluminum starch octenylsuccinate, 12-18 parts of polyvinylpyrrolidone, 10-16 parts of an itaconic acid copolymer, 8-10 parts of a bactericide and 100-150 parts of deionized water. The preparation method of the mine sewage flocculant comprises the following steps: firstly, modifying melamine, and then mixing modified melamine with other raw materials to prepare the product mine sewage flocculant. The flocculant is non-toxic andharmless, has short flocculation settling time, good treatment effect and high stability, and does not cause secondary pollution.

Description

technical field [0001] The invention belongs to the technical field of sewage treatment and processing, in particular to a coagulant for mine sewage and a preparation method thereof. Background technique [0002] With the development of social economy, people's exploitation of mineral resources is increasing day by day. Due to the unreasonable development of mine resources, it has caused a certain degree of damage to the ecological environment around the mine, and mine sewage is one of the main sources of pollution. Mine sewage is various waste water produced during the mining process, including natural leaching water in mines, mineral processing wastewater, mineral processing waste slag overflow water and leaching water from slag dumps, etc. The main pollutants in mine wastewater include organic pollutants, oil pollutants, acid-base pollutants, cyanide, heavy metal pollutants and soluble salts. Mine sewage has the characteristics of large discharge, high mud content, high...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/56C02F1/50C02F103/10
CPCC02F1/50C02F1/56C02F2103/10C02F2303/02
Inventor 韦明
Owner NANNING XIAYANG CHEM TECH CO LTD
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