Multi-stage serial connection spherical particle active electrode reaction device

An active electrode and spherical particle technology, which is applied in the field of multi-stage series spherical particle active electrode reaction devices, can solve the problems of easy hardening, high energy consumption, low treatment efficiency, etc., so as to reduce heat loss power and reduce energy consumption per ton of water treatment. , the effect of small operating current

Active Publication Date: 2016-10-26
CNOOC TIANJIN CHEM RES & DESIGN INST +1
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  • Abstract
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to overcome the problems existing in the prior art, and to design a multi-stage series spherical particle active electrode reaction device to solve the p

Method used

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  • Multi-stage serial connection spherical particle active electrode reaction device
  • Multi-stage serial connection spherical particle active electrode reaction device
  • Multi-stage serial connection spherical particle active electrode reaction device

Examples

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Example Embodiment

[0034] Specific example 1:

[0035] A petrochemical company in Hebei Province contained a large amount of difficult-to-biodegradable substances in the production wastewater due to the complexity of the refined oil products. The COD of the wastewater after biochemical treatment was about 80mg / L, which could not meet the relevant effluent discharge standards. A multi-stage series spherical particle active electrode reaction device was used to conduct engineering application research on the advanced treatment of the company’s biochemical effluent. The results show that when the operating voltage is 36000V, the operating current is 10mA, the hydraulic retention time is 30min, and the effluent COD is less than 60mg / L, The effluent meets the discharge water quality requirements. At this time, the current efficiency is 55%. Compared with the traditional two-dimensional electrolysis equipment, the electricity consumption per ton of water is reduced by about 0.9kw.h under the condition of ...

Example Embodiment

[0036] Specific instance two:

[0037] After biochemical treatment of chemical wastewater from a factory in Tianjin, in order to achieve near zero discharge of wastewater, an ultrafiltration-reverse osmosis double membrane system is used to reuse part of the biochemical effluent. After the double membrane system is treated, a certain amount of concentrated liquid will be produced. The concentrated liquid has a COD of about 90mg / L, conductivity is about 1000-5000μs / cm, Cl - The content is about 700-900mg / L. The concentrated liquid is not suitable for biochemical treatment again because of its small displacement and the difficulty of biochemical degradation of the contained substances. After treatment with a multi-stage series spherical particle active electrode reaction device, when the operating voltage is 50000V, the operating current is 10-15mA, the hydraulic residence time in the reactor is 30min, and the effluent COD is ≤50mg / L, which meets the requirements of up to standard d...

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Abstract

The invention provides a multi-stage serial connection spherical particle active electrode reaction device, which comprises an insulated reaction device case, wherein the top of the reaction device case is provided with an exhaust pipe and a water outlet pipe; the bottom of the reaction device case is provided with a mud collecting hopper; the bottom of the mud collecting hopper is provided with a water inlet pipe and a mud discharging pipe; a set of multi-stage serial connection spherical particle active electrode reaction system is fixed inside the reaction device through a positioning pin, and comprises spherical particle active electrodes in A row, B lines and C layers; the spherical particle active electrode carriers are spherical titanium metal spheres; a composite noble metal oxide coating is coated at the outer layer; three hole passages which pass through sphere cores and are mutually vertical are formed in the middle; a positioning insulation plastic rod respectively passes through each hole passage; A*B*C particle electrodes are fixed into A rows, B lines and C layers with equal distances, wherein the first spherical particle active electrodes are connected with a positive electrode of an external direct current power supply; the (A*B*C)-th spherical particle active electrode is connected with a negative electrode of the external direct current power supply; the current is enabled to flow through all spherical particle active electrodes.

Description

technical field [0001] The invention is a multi-stage serial spherical particle active electrode reaction device, which is suitable for treating industrial refractory organic waste water and belongs to the professional field of environmental engineering. Background technique [0002] In recent years, with the development of the country's industry and economy, many wastewater containing toxic and harmful substances that are difficult to biodegrade have continuously entered the environment, causing great harm to industrial and agricultural production, people's lives and human health. Under this background , the state requires more and more stringent standards for wastewater discharge, and the up-to-standard treatment of many refractory wastewater has become a difficult problem in the field of environmental protection. [0003] On the other hand, as a brand-new advanced oxidation technology, electrocatalytic oxidation technology has been successfully applied in the high-salt wa...

Claims

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Application Information

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IPC IPC(8): C02F1/461C02F1/72
CPCC02F1/4672
Inventor 秦微谢陈鑫赵慧李肖琳钱光磊王震滕厚开张艳芳
Owner CNOOC TIANJIN CHEM RES & DESIGN INST
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