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Three-dimensional graphene nano material electrochemical reactor for treating high-concentration organic wastewater

A nanomaterial, organic wastewater technology, applied in chemical instruments and methods, water/sewage treatment, water/sludge/sewage treatment, etc. Electrochemical reaction and other problems, to achieve the effect of small footprint, not easy to break, and compact equipment

Inactive Publication Date: 2015-06-24
济南沃达环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the electrodes of the electrochemical reactor disclosed in the above-mentioned patent documents are made of activated carbon, and the electrochemical treatment effect is not good, and the contact area between the electrode and the wastewater is small, and the electrochemical reaction with the wastewater cannot be fully performed.

Method used

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  • Three-dimensional graphene nano material electrochemical reactor for treating high-concentration organic wastewater
  • Three-dimensional graphene nano material electrochemical reactor for treating high-concentration organic wastewater
  • Three-dimensional graphene nano material electrochemical reactor for treating high-concentration organic wastewater

Examples

Experimental program
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Effect test

Embodiment 1

[0027] A three-dimensional graphene nanomaterial electrochemical reactor for treating high-concentration organic wastewater, the reactor includes a closed reactor body 1, and the reactor body 1 is staggered and vertically provided with partitions 2, and the partitions 2 The reactor body 1 is divided into a plurality of processing units, the processing unit is provided with a clamping groove 3, and the three-dimensional graphene nanomaterial electrode 4 is arranged in the clamping groove 3, and the reactor body 1 A titanium electrode 5 is provided at the top of the interior, a water inlet 6 is provided at the upper part of one side of the reactor body 1, and a water outlet 7 is provided at the lower part of the opposite side of the reactor body 1 to the water inlet 6. The three-dimensional graphene nanomaterial electrodes 4 arranged in the processing unit are connected in parallel with each other and connected with the titanium electrode 5 through a power supply 8, and the power...

experiment example 1

[0032] Utilize the three-dimensional graphene nanomaterial electrochemical reactor of embodiment 1 to acid red 27 (Acid Red27) high-concentration organic wastewater electrochemical treatment, the original index of Acid Red27 high-concentration organic wastewater is Acid red27: 2000mg / L, total organic carbon Content (TOC) 720mg / L.

[0033] Proceed as follows:

[0034] Close the water outlet 7 of the reactor, use the pump 9 to pump Acid Red27 high-concentration organic waste water into the reactor from the water inlet 6, turn on the power supply 8 (power supply voltage 1.2V), and the three-dimensional graphene nanomaterial electrode 4 is high to the Acid Red27 Concentrated organic wastewater is electrochemically treated for 1 hour. After the treatment is completed, open the water outlet 7, collect the effluent at the water outlet 7 and measure the decolorization rate and TOC amount, and compare it with the original index of Acid Red27 high-concentration organic wastewater to cal...

Embodiment 2

[0037] The three-dimensional graphene nanomaterial electrochemical reactor as described in Example 1, the difference is that the reactor body 1 is 40cm long, 35cm high, and 20cm wide, the number of separators 2 is 3, and the height of the clamping groove 3 is 25cm , the distance between the clamp groove 3 and the bottom of the reactor body 1 is 5cm; the shape of the three-dimensional graphene nanomaterial electrode 4 is a cuboid, the titanium electrode 5 is a titanium metal plate, and the power supply voltage is 0.6V.

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Abstract

The invention relates to a three-dimensional graphene nano material electrochemical reactor for treating high-concentration organic wastewater. The reactor comprises a sealed reactor main body, wherein the reactor main body is alternatively and vertically equipped with partition plates for dividing the reactor main body into a plurality of treating units; clamping slots are arranged in the treating units; three-dimensional graphene nano material electrodes are arranged in the clamping slots; titanium electrodes are arranged at the top end inside the reactor main body; a water inlet is arranged on the upper part at one side of the reactor main body; a water outlet is arranged on the lower part at one side, opposite to the water inlet, of the reactor main body; the three-dimensional graphene nano material electrodes arranged in the treating units are in parallel connected with each other and are connected with the titanium electrode by a power supply; and the power supply is a direct-current power supply. According to the invention, the three-dimensional graphene is used as an electrode for applying voltage to improve efficiency of treating organic substances by the three-dimensional graphene, wherein discoloring efficiency can reach 98%-100%, and TOC (total organic carbon) amount removal rate can reach over 96%.

Description

technical field [0001] The invention belongs to the field of wastewater purification, and relates to a three-dimensional graphene nanomaterial electrochemical reactor for treating high-concentration organic wastewater. Background technique [0002] High-concentration organic wastewater generally refers to wastewater with COD above 2000mg / L discharged from papermaking, leather and food industries. The composition of this wastewater is very complex and highly toxic. It is difficult to photodegrade and biodegrade in the natural environment, causing great harm to organisms and the environment. If it is discharged directly, it will cause serious water pollution. Therefore, the dye wastewater Processing has received extensive attention. The general treatment methods are: coagulation method, oxidation-adsorption method, incineration method, extraction method, wet catalytic oxidation method, electrochemical method and membrane separation method, chemical oxidation method, electroly...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C02F1/461
Inventor 孙雪菲郭贝贝王曙光
Owner 济南沃达环保科技有限公司