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Oxidation and reduction double-effect micro electrolysis combined reactor and application thereof

A reactor and micro-electrolysis technology, applied in chemical instruments and methods, sterilization/microdynamic water/sewage treatment, water/sewage treatment, etc. The effect of reducing the footprint

Inactive Publication Date: 2016-03-23
NANJING GW ENVIRONMENT ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The technology of the present invention aims at the defect that the current iron-carbon micro-electrolysis reactor only utilizes its single function, and discloses a double-effect micro-electrolysis composite reactor for oxidation and reduction

Method used

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  • Oxidation and reduction double-effect micro electrolysis combined reactor and application thereof
  • Oxidation and reduction double-effect micro electrolysis combined reactor and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as figure 1 An oxidation and reduction double-effect micro-electrolysis composite reactor shown includes a cylinder body and a special iron-carbon catalytic packing, the center of the cylinder body is provided with a channel baffle 8, and the channel baffle 8 is a sieve-holed Cylindrical baffle, the special iron-carbon catalytic filler is filled in the packing area 2 formed between the channel baffle 8 and the cylinder; the channel baffle 8 is provided with a circulation pipeline inside, and the circulation pipeline passes through the pump 5 It is connected with the upper end of the cylinder; the bottom of the packing area 2 is provided with a microporous aeration plate 6, and the microporous aeration plate 6 is connected with the aeration generator 4; the bottom of the cylinder is provided with a water inlet 3, and the top A water outlet 1 is provided; the height of the water inlet 3 is higher than the bottom of the filling area 2, and the height of the water out...

Embodiment 2

[0035] According to the equipment described in Example 1, wherein the special iron-carbon catalytic filler is an iron-carbon filler loaded with lanthanum chloride, the electroplating industry wastewater is taken, wherein the heavy metals exceeding the standard include Cd and Ni elements, the pH of the solution is adjusted to about 4, and the wastewater is passed into In the new composite reactor of oxidation and reduction double-effect micro-electrolysis, after 1 hour of stirring by water conservancy, samples were taken for determination. The heavy metals were determined by ICP-MS, and the data determination results are shown in Table 1.

[0036] Table 1 data measurement results

[0037] sample 111Cd (ug / L) 59Ni (mg / L) Initial concentration of wastewater 161.55 1668 Pretreatment reactor effluent 20.20 37

[0038] From the data in Table 1, it can be seen that compared with the initial concentration of heavy metals in wastewater, the cadmium (Cd)...

Embodiment 3

[0040]According to the equipment described in Example 1, wherein the special iron-carbon catalytic filler is an iron-carbon filler loaded with cerium chloride, the electroplating industry wastewater is taken, wherein its total phosphorus content and heavy metal elements exceed the standard, the pH of the wastewater itself is about 2, and the wastewater Directly pass into the oxidation and reduction double-effect micro-electrolysis new composite reactor, hydraulically stir for 1 hour to remove heavy metal elements, then ozone aerate and stir for 1 hour to remove total phosphorus, and then take samples for measurement. Heavy metals were determined by ICP-MS, and organics were determined by indophenol blue colorimetry. The data measurement results are shown in Table 2.

[0041] Table 2 data measurement results

[0042]

[0043] As can be seen from the data in Table 2, the reactor in the present invention can have a good removal rate to total phosphorus and heavy metal element...

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Abstract

The invention provides a double-effect micro electrolysis combined reactor which comprises a cylinder body and special iron carbon catalytic packing. The center of the cylinder is provided with a channel baffle, the channel baffle is a cylindrical baffle provided with sieve holes, and the special iron carbon catalytic packing is arranged in a packing area formed between the channel baffle and the cylinder body in a filled mode; the channel baffle is internally provided with a circulating pipe, and the circulating pipe is connected with the upper end of the cylinder body through a pump; the bottom of the packing area is provided with a microporous aeration plate, and the microporous aeration plate is connected with an aeration generator; the bottom end of the cylinder body is provided with a water inlet, and the top of the cylinder body is provided with a water outlet; the water inlet is higher than the bottom of the packing area, and the water outlet is higher than the whole circulating pipe. By means of the oxidation and reduction double-effect micro electrolysis combined reactor, an oxidation and reduction integrated reaction can be achieved.

Description

technical field [0001] The patented technology of the invention is mainly used for wastewater treatment and belongs to the field of environmental protection. Background technique [0002] Iron-carbon micro-electrolysis is a method of treating wastewater by forming countless tiny primary batteries in water through the potential difference between iron and carbon. The electrolytic materials of the iron-carbon micro-electrolysis process generally use cast iron chips and activated carbon or coke. Both iron and carbon particles are in contact with the solution, while the iron and carbon remain in contact, enabling electron transfer. When it is immersed in the electrolyte solution, due to the electrode potential difference of 1.2V between Fe and C, countless micro-battery systems will be formed, forming an electric field in its action space. Under acidic conditions, these active ingredients can undergo redox reactions with many components in wastewater. [0003] When wastewater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/467C02F1/62C02F1/58
CPCC02F1/4672C02F1/4676C02F1/58C02F1/62C02F2201/46105C02F2201/4619
Inventor 高亚娟韩正昌马军军刘大才韩峰何建龙柴慧丽朱家明崔洪磊张寅丞王云枫陈晓燕
Owner NANJING GW ENVIRONMENT ENG
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