Method for removing high-concentration chloride ions in water by using modified fly ash

A fly ash, high-concentration technology, applied in chemical instruments and methods, water pollutants, water/sewage treatment, etc., can solve the cost of easy oxidation of cuprous ions, high requirements for equipment corrosion resistance, and expensive silver ions and other problems, to achieve good physical and chemical adsorption, enhance anti-interference ability, and remove a wide range of pollution factors.

Pending Publication Date: 2021-04-02
JIANGSU JINGYUAN ENVIRONMENTAL PROTECTION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although silver ions can precipitate chloride ions, silver ions are expensive and difficult to apply on a large scale
Cuprous ions can also form precipitation with chloride ions to remove chloride ions in water, but cuprous ions are extremely easy to oxidize and cost high, making it difficult for industrial application
Membrane separation technology can remove chloride ions in water, but most high-concentration chloride ion wastewater will excee

Method used

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  • Method for removing high-concentration chloride ions in water by using modified fly ash

Examples

Experimental program
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Example Embodiment

[0032]Example 1:

[0033]Such asfigure 1 As shown, a method of removing high concentration chloride ion using modified fly ash, including the following specific steps:

[0034]Step 1: 100 parts of the drums were added to the ball mill for pulverizing the ball, the ball milling time was 45 min, and the sieve was sieved for a mesh for the sieve, and the fuma powder was obtained;

[0035]Step 2: Add 150 parts of a water solvent mixture to mix the fly ash powder, react under ultrasonic action, and the frequency of ultrasonic waves is 40 kHz, the sound intensity is 0.6 w / cm, and the ultrasonic effect is 45 °, ultrasonic waves. After the reaction, enter the reaction kettle and calcined, dried to dryness, resulting in fly ash;

[0036]Step 3: Add 50 parts of the antibacterial anticorrosive aid to heat the heating, the heating temperature is 50 °, the stirring time is 1 h, and the stirring is completely cooled to normal temperature, and 60 parts of surface active aid mix, After the mixing is complete...

Example Embodiment

[0054]Example 2:

[0055]A method of removing high concentration chloride ions using modified fly ash, including the following specific steps:

[0056]Step 1: 100 parts of flour coals to the ball mill for pulverizing the ball mill, the ball milling time is 50 min, and the sieve is a mesh for 120 sieves.

[0057]Step 2: Add 200 parts of a water solvent to mix, react under the action of ultrasonic waves, and the frequency of ultrasonic use is 45 kHz, the sound strength is 0.7 w / cm, and the ultrasonic effect is 50 °, ultrasonic waves. After the reaction, enter the reaction kettle and calcined, dried to dryness, resulting in fly ash;

[0058]Step 3: Add 55 parts of the antibacterial anticorrosive aid to the above-mentioned powder coal and stirring, the heating temperature is 65 °, the stirring time is 1 h, after the stirring is completed, and then cool to normal temperature, add 70 parts of surface active auxiliary mix, After the mixing is completed, the reaction is carried out under the action o...

Example Embodiment

[0062]Example 3:

[0063]A method of removing high concentration chloride ions using modified fly ash, including the following specific steps:

[0064]Step 1: 100 parts of the drums were pulverized to the ball mill, and the ball mill was 60 min, and the sieve was sieved for 150 sieves, and the drum powder was fine.

[0065]Step 2: Add 250 parts of a water solvent to mix in the flyam fine powder, react under ultrasonic operation, and the frequency of ultrasonic use is 50 kHz, the sound strength is 0.8 w / cm, and the ultrasonic effect is 60 °, ultrasonic waves. After the reaction, enter the reaction kettle and calcined, dried to dryness, resulting in fly ash;

[0066]Step 3: Add 60 parts of the powder coal gray powder to heat the heating and stirring, the heating temperature is 80 °, the stirring time is 1 h, and then allowed to stand after the stirring is completed, and the addition of 80 surface active auxiliaries mix, After the mixing is completed, the reaction is carried out under the action...

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Abstract

The invention relates to a method for removing high-concentration chloride ions in water by using modified fly ash, which comprises the following steps: adding fly ash into a ball mill, and conductingcrushing, ball-milling and sieving to obtain fly ash fine powder; adding a water solvent into the fly ash fine powder, conducting mixing, conducting reacting under the action of ultrasonic waves, andafter the ultrasonic reaction, feeding a reaction solution into a reaction kettle for high-temperature calcination and conducting drying to obtain fly ash powder; adding an antibacterial and anticorrosive additive, conducting heating and stirring, adding a surfactant additive, conducting mixing, conducting reacting under the action of ultrasonic waves, carrying out high-temperature calcination ina reaction kettle after the ultrasonic reaction, and conducting drying to obtain an additive fly ash; adding a modifier, conducting stirring and mixing, conducting reacting under the action of ultrasonic waves, adding n-butyl acrylate, rosin-based diene and diallyl phthalate, conducting stirring, sequentially conducting oscillating and washing with acetone and deionized water, carrying out filterpressing, carrying out vacuum drying, and conducting pulverizing to obtain modified fly ash; and adding wastewater into a reaction box, adding the modified fly ash, conducting stirring, and adding the stirred materials into a centrifugal clarifier for reaction.

Description

technical field [0001] The invention relates to the technical field, in particular to a method for removing high-concentration chloride ions in water by using modified fly ash. Background technique [0002] The methods for removing high chloride ions mainly include precipitation salt method, membrane separation method, evaporation concentration method and so on. Since chloride ions can form soluble salts with most metal ions, it is generally difficult to remove chloride ions by precipitation. Although silver ions can precipitate chloride ions, silver ions are expensive and difficult to apply on a large scale. Cuprous ions can also form precipitation with chloride ions to remove chloride ions in water, but cuprous ions are extremely easy to oxidize and cost high, making it difficult for industrial application. Membrane separation technology can remove chloride ions in water, but most high-concentration chloride ion wastewater will exceed the application limit of membrane te...

Claims

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Application Information

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IPC IPC(8): C02F1/28C02F1/52C02F101/12
CPCC02F1/281C02F1/5236C02F2101/12
Inventor 李武林李振玉季献华李宽王辰徐俊秀
Owner JIANGSU JINGYUAN ENVIRONMENTAL PROTECTION
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