Treatment method for removing detergent in domestic wastewater

A treatment method and technology for domestic wastewater, applied in biological water/sewage treatment, multi-stage water treatment, water/sewage treatment, etc., can solve the problems of unstable treatment effect, high cost, complicated technology, etc., and the principle is simple and easy to implement , improve efficiency, strengthen the effect of adsorption and interception

CN105693020AActive Publication Date: 2016-06-22CHINA UNION ENG
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2016-06-22

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Abstract

The invention discloses a treatment method for removing detergent in domestic wastewater. The treatment method includes: allowing the domestic wastewater containing the detergent to sequentially pass a preprocessing unit, a primary filter tank, a primary settling tank, a pH regulating tank, an ion-Hall effect separation tank, an aeration nitration tank, a biological nitrogen removal tank, a secondary settling tank, a purified water tank and the like. The treatment method has the advantages that the method creatively uses an electromagnetism induction phenomenon called Hall effect, when currents transmit in a wastewater tank in a way that the currents are vertical to an outer magnetic field, a carrier deflects, and an additional electric field is generated in the direction vertical to the currents and the magnetic field; as long as an electromagnet and an discharge electrode are respectively placed at appropriate positions to allow the magnetic induction line direction and the current direction to vertically pass the water tank along two horizontal directions, potential difference can be generated in the vertical direction of the water tank, the detergent ions in the waste water are allowed to move downwardly and be enriched at the bottom of the water tank to gradually form sludge, and accordingly the detergent is removed from the wastewater.
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Description

technical field

[0001] The invention relates to a treatment method for removing detergent in waste water, which belongs to the field of waste water treatment in environmental protection. Background technique

[0002] The main component of detergent is surfactant. Surfactant refers to a class of substances with certain properties, structure and interfacial adsorption performance, which can significantly reduce the surface tension of solvents or the interfacial tension of liquid-liquid and liquid-solid. Its molecular structure contains two parts of organic compounds, hydrophilic group and lipophilic group. When surfactants are dissolved in water, they are classified into ionic surfactants and nonionic surfactants according to whether they generate ions and their electrical properties. According to the dissociation properties of polar groups, surfactants include ionic surfactants, nonionic surfactants, and special surfactants.

[0003] In recent years, my country's chemical s...

Examples

Embodiment Construction

[0020] Such as figure 1In the shown treatment method for removing detergent in domestic wastewater, the domestic wastewater containing detergent enters the pretreatment unit 1 through the wastewater pipeline, where centralized collection and preliminary stabilization adjustment are performed, and the outlet of the pretreatment unit 1 is connected to the primary filter through the wastewater pipeline Pool 2, where the large-diameter solid matter in the domestic wastewater is removed, the outlet of the primary filter tank 2 is connected to the primary sedimentation tank 3 through the wastewater pipeline, where insoluble substances in the wastewater are further removed, and the outlet of the primary sedimentation tank 3 is connected through the wastewater pipeline pH value adjustment tank 4, where the wastewater is neutralized and the pH value is precisely adjusted. The pH value of the effluent from the pH value adjustment tank 4 ranges from 6.0 to 7.0 to meet the pH value of the ...