Iron-carbon micro-electrolysis device and use method thereof

A technology of iron-carbon micro-electrolysis and micro-electrolysis tower, applied in chemical instruments and methods, degassed water/sewage treatment, water/sludge/sewage treatment, etc., can solve iron-carbon bed blockage, unsuitable control, and pollution bubbles and other problems, to reduce negative effects, increase agitation and friction, and strengthen the control of foam

Active Publication Date: 2015-06-10
NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Aiming at the problems of iron-carbon bed blockage, compaction, passivation, iron sludge pollution and air bubbles in the existing micro-electrolysis device, the present invention provides an iron-carbon mi...

Method used

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  • Iron-carbon micro-electrolysis device and use method thereof
  • Iron-carbon micro-electrolysis device and use method thereof
  • Iron-carbon micro-electrolysis device and use method thereof

Examples

Experimental program
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Embodiment 1

[0036] Such as figure 1 , figure 2 , image 3 and Figure 4 As shown, a kind of iron-carbon micro-electrolysis device comprises pressure atomization system 1, micro-electrolysis tower 13, stirring impeller 16, water distribution system, water storage tank 27, centrifugal dehydrator 34 and control system, and pressure atomization system 1 includes Air system, water inlet system, infrared transmitter and receiver 2, integrated module 3 and air atomizing nozzle 12, the air intake system includes air inlet 4, air shut-off valve 5, air filter 6 and air conditioning Valve 7; the water inlet system includes a return water inlet 8, a liquid shut-off valve 9, a liquid filter 10 and a liquid regulating valve 11 connected sequentially through pipelines; one end of the air regulating valve 7, one end of the liquid regulating valve 11, infrared emission and receiving Both the device 2 and the integrated module 3 are connected to the air atomizing nozzle 12, and there are 8 air atomizin...

Embodiment 2

[0045] With embodiment 1, difference is: air atomization nozzle 12 has 12; The aspect ratio of micro electrolysis tower 13 is 8:1 (diameter is 1m, and effective height is 8m); The volume of iron-carbon filler 15 is micro 1 / 2 of the volume of the electrolytic tower 13, the iron-carbon mass ratio in the iron-carbon filler 15 is 3:1; the stirring impeller 16 is provided with 5 layers;

[0046] In this embodiment, a certain dye mother liquor wastewater (water quality is COD: 10000-14000mg / L, BOD 5 / COD: 0.04-0.06, pH: 2.0-2.5, chroma: 14000-16000 times) as an example for wastewater treatment.

[0047] Its processing step is the same as embodiment 1, and the difference is: in the step (1), the influent flow rate is 3.2m 3 / h, the water intake time is 0.5h, and the rotating speed of the stirring impeller during water intake is 360r / min; the rotating speed of the stirring impeller after entering the reaction stage in the step (2) is 1080r / min, and the reaction time is 2.5h; step (3)...

Embodiment 3

[0050] With embodiment 1, difference is: air atomization nozzle 12 has 8; The aspect ratio of micro electrolysis tower 13 is 5:1 (diameter is 1m, and effective height is 5m); The volume of iron-carbon filler 15 is micro 1 / 3 of the volume of the electrolytic tower 13, the iron-carbon mass ratio in the iron-carbon filler 15 is 2:1; the stirring impeller 16 is provided with 3 layers;

[0051] In this embodiment, silk dyeing and printing wastewater (chroma 800 times, COD: 1400 mg / L, pH: 5.3-5.5) is taken as an example for wastewater treatment.

[0052] Its processing step is the same as embodiment 1, and the difference is: in the step (1), the influent flow rate is 3.2m 3 / h, the water intake time is 0.5h, and the rotating speed of the stirring impeller during water intake is 360r / min; the rotating speed of the stirring impeller after entering the reaction stage in the step (2) is 1080r / min, and the reaction time is 1.5h; step (3) The medium standing time is 0.5h. After being tr...

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Abstract

The invention discloses an iron-carbon micro-electrolysis device and a use method thereof, and belongs to the field of environmental engineering waste water treatment. The iron-carbon micro-electrolysis device comprises a pressure atomizing system, a micro-electrolysis tower, a stirring impeller, a water distribution system, a water storage pond, a centrifugal dehydrator and a control system. An up-flow water inlet mode is adopted, stirring and friction actions of filler and sewage in the horizontal direction and in the vertical direction are increased by means of rotation of the impeller and even water distribution of an annular water distribution pipe, the common problems that according to an existing iron-carbon micro-electrolysis reactor, an iron-carbon bed is blocked, hardened, passivated and the like are solved, meanwhile, effective contact of waste water and the iron-carbon bed is increased, and the treatment effect is enhanced. By means of the device and the method, bubbles generated in the micro-electrolysis device can further be effectively eliminated, secondary pollution caused by iron mud to environments is reduced, and the device and the method have the advantages that the structure is simple, design is reasonable and the sewage treatment effect is good.

Description

technical field [0001] The invention belongs to the field of environmental engineering wastewater treatment, and more specifically relates to an iron-carbon micro-electrolysis device and a method for using the same. Background technique [0002] With the development of society and the increasing degree of industrialization, the types and quantities of refractory, toxic and harmful industrial wastewater have increased rapidly, and the pollution of water bodies has become increasingly widespread, seriously threatening human health and safety. At present, there are many methods for industrial wastewater treatment, which can be divided into four categories according to their working principles, namely chemical treatment, physical treatment, electrochemical treatment and biological treatment. Physical wastewater treatment technologies usually include filtration, sedimentation, centrifugal separation, membrane separation, adsorption, extraction, etc.; electrochemical methods inclu...

Claims

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Application Information

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IPC IPC(8): C02F1/461C02F1/20
Inventor 张后虎彭宇赵克强赵泽华张静刘茹
Owner NANJING INST OF ENVIRONMENTAL SCI MINIST OF ECOLOGY & ENVIRONMENT OF THE PEOPLES REPUBLIC OF CHINA
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