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Sewage treatment device and method integrating electric flocculation, magnetic flocculation and magnetic separation

A sewage treatment device and technology for sewage treatment, applied in the directions of oxidized water/sewage treatment, water/sewage treatment, water/sewage multi-stage treatment, etc. The process is complex and other problems, to achieve the effect of improving the flocculation effect and settling speed, broad development space and market prospects, and low investment cost

Active Publication Date: 2018-09-18
NANJING FORESTRY UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the difficulty of magnetic powder recovery makes magnetic flocculation unable to be widely used in practical engineering.
[0004] It can be seen that electrocoagulation and magnetic flocculation are separated in the current sewage treatment process, and electrocoagulation and magnetic coagulation are carried out in different devices. During the process, the floc formed by impurities and magnetic powder is usually transferred to other devices, and then separated or recovered. The process of flocculation and separation of impurities in sewage is complicated, and the magnetic powder cannot be effectively recycled.

Method used

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  • Sewage treatment device and method integrating electric flocculation, magnetic flocculation and magnetic separation
  • Sewage treatment device and method integrating electric flocculation, magnetic flocculation and magnetic separation
  • Sewage treatment device and method integrating electric flocculation, magnetic flocculation and magnetic separation

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Embodiment 1

[0041] Such as figure 1 As shown, this embodiment provides a sewage treatment reaction tank 10 integrating electrocoagulation, magnetic flocculation and magnetic separation, including a water inlet 1 , a water outlet 2 , an aeration device 6 , an electromagnetic induction device 7 and a sludge discharge port 8 . The two side walls outside the reaction tank 10 are respectively provided with a water inlet 1 and a water outlet 2, the bottom side walls of the reaction tank 10 are respectively provided with an aeration device 6 and an electromagnetic induction device 7, and the center of the bottom of the reaction tank 10 is provided with a row mud mouth 8.

[0042] During use, the sewage enters the reaction tank 10 from the water inlet 1, and the reaction tank 10 is controlled to perform electric flocculation, the electromagnetic induction device 7 performs magnetic flocculation, and the aeration device 6 makes the mixing of the sewage more uniform during the flocculation process....

Embodiment 2

[0044] Such as figure 2 As shown, this embodiment provides a sewage treatment reaction tank 10 integrating electrocoagulation, magnetic flocculation and magnetic separation, including a water inlet 1, a water outlet 2, an electrode slot 3, an electrode support 4, a soluble electrode 5, an exposure Gas device 6, electromagnetic induction device 7 and mud discharge port 8. Wherein, the water inlet 1 and the water outlet 2 are respectively located on the two side walls outside the reaction tank 10, and the position of the water inlet 1 is higher than the position of the water outlet 2, and the electrode clamping groove 3 is located on two opposite surfaces inside the reaction tank 10. , the soluble electrode 5 is placed in the electrode card slot 3 and supported by the electrode support 4, the bottom side wall in the reaction tank 10 is respectively provided with an aeration device 6 and an electromagnetic induction device 7, and the center of the bottom of the reaction tank 10 ...

Embodiment 3

[0049] Such as image 3 As shown, this embodiment provides a sewage treatment reaction tank 10 integrating electrocoagulation, magnetic flocculation and magnetic separation, including: water inlet 1, water outlet 2, electrode card slot 3, electrode support 4, soluble electrode 5, The aeration device 6, the electromagnetic induction device 7 and the mud discharge port 8, wherein the water inlet 1 and the water outlet 2 are respectively located on both sides of the reaction tank 10, and the position of the water inlet 1 is higher than the position of the water outlet 2, and the electrode is stuck in the slot 3 are located on two opposite surfaces inside the reaction tank 10. The soluble electrode 5 is placed in the electrode card slot 3 and supported by the electrode support 4. An aeration device 6 is provided at the middle of the inclined tank wall at the bottom of the reaction tank 10. A mud outlet 8 is provided in the middle of the bottom of the reaction tank 10 , and an elec...

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Abstract

The invention relates to a sewage treatment device and method integrating electric flocculation, magnetic flocculation and magnetic separation. The sewage treatment device comprises a water inlet tank, a reaction tank, a water outlet tank, an aeration device, a mud storage tank and a power module. A soluble electrode and an electromagnetic induction device are arranged in the reaction tank; when the device is used, a floc can be fully flocculated, and electric flocculation, magnetic flocculation and magnetic separation integration high-efficient treatment is realized. The device provided by the invention is energy saving, land saving, high in treatment capacity, fast in settling velocity, capable of greatly improving the treatment capacity and the settling velocity of electric flocculationand solving the problem of magnetic powder recovery of magnetic flocculation, and capable of being used for directly treating electroplating wastewater, desulfurization wastewater, mine wastewater and other industrial wastewater with a higher heavy metal content.

Description

technical field [0001] The invention relates to the field of sewage treatment in environmental engineering, in particular to a sewage treatment device and method integrating electrocoagulation, magnetic flocculation and magnetic separation. Background technique [0002] Heavy metal wastewater is one of the most serious environmental pollution and one of the most harmful industrial wastewater to humans. It usually comes from industrial production processes such as mining and metallurgy, machinery manufacturing, chemical industry, electronics, and instrumentation. Heavy metal wastewater contains a large amount of highly soluble heavy metal elements such as lead, chromium, nickel, mercury, copper, etc. If it is not properly treated and discharged into the water body, it will not only cause damage to the ecological environment, but also affect human beings through the enrichment of the biological chain. of good health. Heavy metals in wastewater generally cannot be decomposed a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F9/12C02F101/20
CPCC02F9/00C02F2305/026C02F2101/20C02F1/463C02F1/74C02F1/722C02F1/484
Inventor 王郑王子杰许锴薛红琴刘亚利林少华林子增陈蕾荆肇乾曹世玮王祝来
Owner NANJING FORESTRY UNIV
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