Rapid treatment method and treatment system for acidic industrial waste water

Abstract

The invention belongs to the field of industrial waste water treatment, and particularly relates to an industrial waste water treatment method and system. The invention discloses a rapid industrial waste water treatment method and system, and simultaneously discloses rapid industrial waste water treatment steps, principles, operation process and method. The experimental result shows that the rapid industrial waste water treatment method can achieve rapid and efficient treatment on pollutants in industrial waste water, and discharge requirements of related national standards are met.

Description

technical field

[0001] The invention relates to the field of industrial wastewater treatment, in particular to an industrial wastewater treatment method and a treatment system.

[0002] technical background

[0003] A large amount of waste water is produced in industrial production, and a variety of industrial waste water contains a large amount of acid waste liquid with harmful metal ions. These waste liquids contain a variety of high-concentration pollutants, which can cause serious pollution to water bodies and soil environments. If they are not treated or treated thoroughly, they will cause serious pollution to the surrounding environment. Therefore, they need to be treated until they reach the level of sewage. Emissions can only be carried out after meeting the emission standards.

[0004] At present, the treatment of these sewage mainly contains acidic substances and heavy metal ion pollutants, and the acidic substances can generally be treated by alkali neutralization...

Examples

Embodiment 1

[0046] like figure 2 As shown, in 4000L and on tank 7, multiple feed pipes and discharge pipes are respectively provided, and pumps are provided on the pipes to provide power for transporting the solution; a 300m 3 In the sewage treatment pool 1, the filter press 2 is selected as the filter device, and two 3000L tanks are selected as the sampling tank 3 and the dosing tank 4 respectively.

[0047] The sampling tank 3 and the dosing tank 4 are installed on the upper part of the sewage treatment tank 1, and are connected with the sewage treatment tank with pipelines, and corresponding valves are respectively installed on the pipelines to control the flow of the solution in the pipes, wherein the sampling tank 3 It is connected with the neutralization tank 7 for collecting samples therein for detection, and the other end is connected with the sewage treatment tank 1; one end of the dosing tank 4 is connected with the medicine feeding pipeline, and the other end is dosing with th...

Embodiment 2

[0050] Adopt the device identical with above-mentioned embodiment 1, after finishing the installation of sewage treatment plant, will 4m 3 The sewage was discharged into the neutralization tank, and its pH value was found to be 3.9 through testing, in which Cu 2+ The concentration is 1300mg / L, Fe 3+ The concentration is 113mg / L and Mn 2+ The concentration is 86mg / L. The stirring device therein was turned on, and a sodium hydroxide solution with a mass concentration of 30% was added thereto until the pH of the solution reached 7.0. Discharge the neutralized solution into the sewage treatment tank, turn on the stirring device, take out the sample solution from the sampling tank for testing, and find that Cu 2+ The concentration is 8mg / L, Fe 3+ The concentration is 5mg / L and Mn 2+ The concentration is 1mg / L, and the sulfide concentration measured by the potentiometer is 0.6mg / L, which meets the relevant standards for sewage discharge. Add 3Kg of activated carbon to the sewag...

Embodiment 3

[0052] Adopt the device identical with above-mentioned embodiment 1, after finishing the installation of sewage treatment plant, will 4m 3 The sewage was discharged into the neutralization tank, and its pH value was found to be 2.3 through testing, in which Cu 2+ The concentration is 21000mg / L, Fe 3+ The concentration is 513mg / L and Mn 2 + The concentration is 486mg / L. The stirring device therein was turned on, and a sodium hydroxide solution with a mass concentration of 30% was added thereto until the pH of the solution reached 8.9. Discharge the neutralized solution into the sewage treatment tank, turn on the stirring device, take out the sample solution from the sampling tank for testing, and find that Cu 2+ The concentration is 52mg / L, Fe 3+ The concentration is 31mg / L and Mn 2+ The concentration is 4mg / L, gradually add sodium sulfide solution with a mass concentration of 5% to the dosing tank, and evenly add it to the surface of the sewage treatment tank through the...

technical field

[0001] The invention relates to the field of industrial wastewater treatment, in particular to an industrial wastewater treatment method and a treatment system.

[0002] technical background

[0003] A large amount of waste water is produced in industrial production, and a variety of industrial waste water contains a large amount of acid waste liquid with harmful metal ions. These waste liquids contain a variety of high-concentration pollutants, which can cause serious pollution to water bodies and soil environments. If they are not treated or treated thoroughly, they will cause serious pollution to the surrounding environment. Therefore, they need to be treated until they reach the level of sewage. Emissions can only be carried out after meeting the emission standards.

[0004] At present, the treatment of these sewage mainly contains acidic substances and heavy metal ion pollutants, and the acidic substances can generally be treated by alkali neutralization...

Examples

Embodiment 1

[0046] like figure 2 As shown, in 4000L and on tank 7, multiple feed pipes and discharge pipes are respectively provided, and pumps are provided on the pipes to provide power for transporting the solution; a 300m 3 In the sewage treatment pool 1, the filter press 2 is selected as the filter device, and two 3000L tanks are selected as the sampling tank 3 and the dosing tank 4 respectively.

[0047] The sampling tank 3 and the dosing tank 4 are installed on the upper part of the sewage treatment tank 1, and are connected with the sewage treatment tank with pipelines, and corresponding valves are respectively installed on the pipelines to control the flow of the solution in the pipes, wherein the sampling tank 3 It is connected with the neutralization tank 7 for collecting samples therein for detection, and the other end is connected with the sewage treatment tank 1; one end of the dosing tank 4 is connected with the medicine feeding pipeline, and the other end is dosing with th...

Embodiment 2

[0050] Adopt the device identical with above-mentioned embodiment 1, after finishing the installation of sewage treatment plant, will 4m 3 The sewage was discharged into the neutralization tank, and its pH value was found to be 3.9 through testing, in which Cu 2+ The concentration is 1300mg / L, Fe 3+ The concentration is 113mg / L and Mn 2+ The concentration is 86mg / L. The stirring device therein was turned on, and a sodium hydroxide solution with a mass concentration of 30% was added thereto until the pH of the solution reached 7.0. Discharge the neutralized solution into the sewage treatment tank, turn on the stirring device, take out the sample solution from the sampling tank for testing, and find that Cu 2+ The concentration is 8mg / L, Fe 3+ The concentration is 5mg / L and Mn 2+ The concentration is 1mg / L, and the sulfide concentration measured by the potentiometer is 0.6mg / L, which meets the relevant standards for sewage discharge. Add 3Kg of activated carbon to the sewag...

Embodiment 3

[0052] Adopt the device identical with above-mentioned embodiment 1, after finishing the installation of sewage treatment plant, will 4m 3 The sewage was discharged into the neutralization tank, and its pH value was found to be 2.3 through testing, in which Cu 2+ The concentration is 21000mg / L, Fe 3+ The concentration is 513mg / L and Mn 2 + The concentration is 486mg / L. The stirring device therein was turned on, and a sodium hydroxide solution with a mass concentration of 30% was added thereto until the pH of the solution reached 8.9. Discharge the neutralized solution into the sewage treatment tank, turn on the stirring device, take out the sample solution from the sampling tank for testing, and find that Cu 2+ The concentration is 52mg / L, Fe 3+ The concentration is 31mg / L and Mn 2+ The concentration is 4mg / L, gradually add sodium sulfide solution with a mass concentration of 5% to the dosing tank, and evenly add it to the surface of the sewage treatment tank through the...

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