Electrochemical wastewater treatment method and device capable of continuously separating oil, water and residue

A technology for wastewater treatment and oil separation, applied in separation methods, water/sewage treatment, chemical instruments and methods, etc., can solve problems such as difficult biodegradation, high electrolysis voltage, secondary pollution, etc., and achieve good decolorization and adsorption capacity Effect

Active Publication Date: 2013-04-17
王麒钧 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] The chemical composition of coking wastewater is very complex, containing a large amount of ammonia nitrogen, sulfide, cyanide and a variety of biologically toxic organic pollutants, high chroma, high toxicity and difficult to be biodegraded
In recent years, many inventors have developed various wastewater treatment devices and technologies through original designs and improved processes. New methods and technologies are constantly being used to treat coking wastewater, but each has its own advantages and disadvantages. The COD and ammonia nitrogen in the effluent and chromaticity are difficult to meet the national emission standards
In the current treatment process, the equipment and treatment methods used either occupy a large area, or the operation is complicated, the treatment efficiency is low, the energy consumption is high, or the cost is high, there is secondary pollution, or the comprehensive recycling effect is poor, such as: biological oxidation method Although the cost is low, it occupies a large area, and the concentration of COD and ammonia nitrogen in the effluent is high, so it is difficult to discharge up to the standard; activated carbon has a strong adsorption capacity because of its rich pore size distribution and large specific surface area. COD can be removed well, but it is easy to be saturated, the concentration of ammonia nitrogen in the effluent is high, and there are also problems such as difficult regeneration of the adsorbent and secondary pollution; in addition, the electrochemical oxidation technology proposed by some scholars in recent years because of its strong oxidative properties And the process is simple, no secondary pollution has attracted w...

Method used

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  • Electrochemical wastewater treatment method and device capable of continuously separating oil, water and residue

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Embodiment 1

[0031] According to the accompanying drawings, the electrochemical reactor device for continuous separation of oil and water slag is designed. The device is a vertically placed vertical pot-shaped sealed container including a shell 3. The sealed container is a rectangular top and an inverted bottom. Conical metal shell; inside the shell there is a rectangular partition 8 placed vertically from top to bottom to divide the rectangular shell into two inner cavities of different sizes, the volume of the larger inner cavity is 2 times the volume of the smaller inner cavity times; in the larger inner chamber, there are oil discharge and scum outlet 6, waste water inlet 7, activated carbon basket anode 9, inert cathode 2, hollow multi-blade agitator 10; in the smaller inner chamber, from top to bottom respectively There are clear water outlets and backwash water inlets 5, dense-porous filter screens, medium-pore filter screens, and coarse-pore filter screens 4 fixedly connected betwee...

Embodiment 2

[0035] As shown in the accompanying drawings, the electrochemical reactor device for continuously separating oil-water residue is designed. This device is a vertically placed vertical pot-shaped sealed container including a shell 3. The sealed container is a cylindrical top and an inverted bottom. Square cone-shaped hard plastic shell; there is a rectangular partition 8 placed vertically from top to bottom in the shell to divide the rectangular shell into two inner cavities of different sizes, the volume of the larger inner cavity is the volume of the smaller inner cavity 3 times of that; in the larger inner chamber, there are oil discharge and scum outlet 6, waste water inlet 7, activated carbon basket anode 9, inert cathode 2, hollow multi-blade agitator 10; in the smaller inner chamber, from top to bottom There are clean water outlet and backwash water inlet 5, densely connected filter screen plate, medium-pore filter screen plate and coarse-pore filter screen plate 4 fixedl...

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Abstract

The invention discloses an electrochemical wastewater treatment method and device capable of continuously separating oil, water and residue. The device adopts proposals such as physical absorption, electrochemical catalytic oxidization, flocculent precipitate, adopting a central partition, bottom sediment, three-layer mesh and the like, so as to realize a technology of combining dynamic water treatment and automatic oil, water and residue separation, reduce COD (Chemical Oxygen Demand), ammonia nitrogen and chrominance in coking wastewater (or other organic wastewater) furthest, and the device has a low power consumption and a good degradation effect, while the device is simple, and has a high treatment efficiency, a low preparation and operation cost and a good separation effect. While a plurality of identical devices can be connected together through pipelines (or grooves) to carry out multi-stage treatment to the wastewater, so that organic wastewater of high concentration or high difficulty can be easily degraded to meet the standard. Compared with biochemical treatment, the treatment method occupies a small area, has less investment and lower cost, and can work continuously and efficiently.

Description

technical field [0001] The invention belongs to the technical field of waste water treatment, in particular, it relates to a method and device for advanced treatment of refractory organic waste water, especially to an electrochemically assisted catalytic oxidation degrading coking waste water (or other waste water) which can continuously separate oil, water and slag. Organic wastewater) method and device. Background technique [0002] The chemical composition of coking wastewater is very complex, containing a large amount of ammonia nitrogen, sulfide, cyanide and a variety of biologically toxic organic pollutants. It has high chromaticity, high toxicity and is difficult to be biodegraded. In recent years, many inventors have developed various wastewater treatment devices and technologies through original designs and improved processes. New methods and technologies are constantly being used to treat coking wastewater, but each has its own advantages and disadvantages. The ...

Claims

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Application Information

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IPC IPC(8): C02F1/461C02F1/463C02F1/72C02F1/28C02F1/40
Inventor 王麒钧王海人张俊王麒宁
Owner 王麒钧
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