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Treatment method of non-ionic surfactant wastewater

A non-ionic surface and treatment method technology, which is applied in the field of non-ionic surfactant wastewater treatment, can solve the problems of introducing excess ions into wastewater, high input costs, cumbersome steps, etc., and achieve excellent treatment effects, low cost, and simple operation Effect

Inactive Publication Date: 2017-11-03
NANJING UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0013] Aiming at the characteristics of non-ionic surfactant wastewater with many types of organic pollutants, high concentration and difficult treatment, the present invention provides a combined treatment method of magnetization treatment and adsorption treatment, which can improve the cumbersome steps and cost-intensive treatment process of the prior art. The defect of high cost; and it is necessary to further overcome the defect that waste water is easily introduced into excess ions in the treatment process of the prior art

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  • Treatment method of non-ionic surfactant wastewater
  • Treatment method of non-ionic surfactant wastewater

Examples

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Effect test

Embodiment 1

[0042] The non-ionic surfactant wastewater in this example comes from the material wastewater of Levima Advanced Materials Co., Ltd. (company address: Mushi Town, Tengzhou City, Shandong Province). The wastewater treatment steps are as follows:

[0043] Step (1) Measure the COD value of the wastewater, the COD value is 8000 mg / L, and adjust the pH value of the wastewater to 5.0.

[0044] Step (2) Construction of the magnetization treatment device: Place two SmCo permanent magnets with the same shape and size in parallel in the magnetization container. town), the structure of the samarium-cobalt permanent magnet is a cube, and its length is 5 centimeters; its width is 2 centimeters; its height is 5 centimeters; the distance of the permanent magnet is adjusted, and the magnetic induction intensity measuring device is used to detect the magnetic induction intensity, and the magnetic induction intensity is measured as 200mT.

[0045] Step (3) Pour the wastewater in step (1) into ...

Embodiment 2

[0071] The source of the nonionic surfactant waste water of the present embodiment is different from the waste water of the factory described in embodiment 1, and the treatment steps are as follows:

[0072] Step (1) Measure the COD value of the wastewater, the COD value is 4000 mg / L, and adjust the pH value of the wastewater to 7.0.

[0073] Step (2) Magnetization treatment device construction: two pieces of samarium cobalt permanent magnets with the same shape and size are placed in parallel in the magnetization container. The structure of the samarium cobalt permanent magnets is a cube with a length of 5 cm; 5 cm; adjust the distance of the permanent magnet, and at the same time use the magnetic induction intensity measuring device to detect the magnetic induction intensity, and the measured magnetic induction intensity is 85mT.

[0074] Step (3) Pour the waste water in the step (1) into a magnetization treatment device for treatment for 12 minutes; measure the COD value of...

Embodiment 3

[0077] The source of the nonionic surfactant waste water of the present embodiment is different from the waste water of the factory described in embodiment 1, and the treatment steps are as follows:

[0078] In step (1), the COD of the wastewater is measured, and the COD is 15000 mg / L, and the pH of the wastewater is adjusted to 4.0.

[0079] Step (2) Magnetization treatment device construction: two pieces of samarium cobalt permanent magnets with the same shape and size are placed in parallel in the magnetization container. The structure of the samarium cobalt permanent magnets is a cube with a length of 5 cm; 5 cm; adjust the distance of the permanent magnet, use the magnetic induction intensity measuring device to detect the magnetic induction intensity, and the measured magnetic induction intensity is 300mT.

[0080] Step (3) Pour the wastewater in step (1) into a magnetization treatment device and treat it for 8 minutes.

[0081] Step (4) build activated carbon adsorptio...

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Abstract

The invention discloses a treatment method of non-ionic surfactant wastewater and belongs to the technical field of wastewater treatment. The treatment method includes that a magnetizing treatment step is adopted to preliminarily treat wastewater, the wastewater is further treated through an activated carbon adsorption step, a magnetizing treatment device is adopted to magnetize the wastewater in the magnetizing treatment step and comprises a magnetizing container and a permanent magnet, and magnetic induction intensity in the magnetizing treatment device should not be lower than 100mT; a magnetic field in the process of magnetizing the wastewater enables pollutants in the wastewater to generate advanced oxidation effect, the wastewater is further treated through activated carbon adsorption, and magnetizing treatment and activated carbon adsorption have certain synergistic effect, so that the whole treatment process does not need to consume energy and reagents. The treatment method is environment-friendly, low in time consumption, simple in equipment, low in cost, excellent in treatment effect and conducive to popularization.

Description

technical field [0001] The invention belongs to the technical field of waste water treatment, and in particular relates to a treatment method for nonionic surfactant waste water. Background technique [0002] Nonionic surfactant is a kind of surfactant with strong wetting ability and purification and washing ability, which is widely used in industry. With the development of its application, nonionic surfactant wastewater is also increasing year by year. This kind of wastewater It usually has the following characteristics: 1) There are many types of organic pollutants in wastewater, complex components, and high concentrations; 2) Organic pollutants in wastewater are easily combined with other pollutants to produce new complex and refractory pollutants; 3) Wastewater generally contains Lots of emulsifiers, detergents. If such wastewater is directly discharged into the receiving water body, the water environment will deteriorate sharply. In addition, the non-ionic surfactant i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/12C02F101/30
CPCC02F9/00C02F1/66C02F1/72C02F1/48C02F1/481C02F1/283C02F2101/301C02F2209/08
Inventor 李磊蔡婧张雨桐徐敏王青李秀文
Owner NANJING UNIV OF TECH
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