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Electrocatalytic oxidation water treatment device and method for treatment of hardly degradable organic wastewater

A technology of electrocatalytic oxidation and water treatment equipment, which is applied in the direction of oxidized water/sewage treatment, multi-stage water treatment, water/sewage treatment, etc., and can solve problems such as high operating costs, limitations of electrochemical methods, and high unit power consumption. Achieve the effect of simple device structure design, reasonable operating cost and reasonable process

Inactive Publication Date: 2017-07-07
唐山永合水处理剂有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual operation process, the disadvantages of large unit power consumption and high operating costs have limited the development and application of electrochemical methods.

Method used

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  • Electrocatalytic oxidation water treatment device and method for treatment of hardly degradable organic wastewater
  • Electrocatalytic oxidation water treatment device and method for treatment of hardly degradable organic wastewater

Examples

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Embodiment 1

[0043] The present invention handles the method for refractory organic waste water, and this embodiment is the treatment of organic cyanide-containing waste water to gold extraction, dressing and smelting. The water quality and quantity of this organic waste water are: water quantity 100t / d, water quality condition COD: 10440mg / L, TCN: 5760mg / L, Cu: 3350mg / L, Zn: 1310mg / L, Fe: 690mg / L, pH 11. The processing steps include:

[0044] (1) The pH value of the wastewater discharged from the gold-extracting cyanide-containing wastewater is about 11, filtered to make the average value of the wastewater, and directly enters the electrocatalytic oxidation water treatment device, combined with figure 1 As shown, the device includes at least two electrolytic cells 1 connected to each other. An anode electrode plate 2 and a cathode electrode plate 3 are respectively arranged in each electrolytic cell 1. Each anode electrode plate 2 is connected to the positive pole of a power supply 4, and...

Embodiment 2

[0054] The present invention handles the method for refractory organic waste water, and this embodiment is to plastic regenerated waste water treatment, and its main pollutant has: pH value is 7~8, CODcr fluctuates in the range of 2000~4000mg / L, SS is in 8000~10000mg / L Fluctuations within the L range, surfactants, a small amount of metal ions and non-metal ions, etc., the present embodiment adopts two-stage advanced treatment by electrochemical method, and the processing steps include:

[0055] (1) The pH value of the waste water discharged from plastic regeneration waste water is about 7.7, filtered to make the waste water average, and directly enters the electrocatalytic oxidation water treatment device, combined with figure 1 As shown, the device includes at least two electrolytic cells 1 connected to each other. An anode electrode plate 2 and a cathode electrode plate 3 are respectively arranged in each electrolytic cell 1. Each anode electrode plate 2 is connected to the p...

Embodiment 3

[0062] The method of the present invention for treating refractory organic waste water, this embodiment is for a certain Shandong Group Co., Ltd. (the existing five major industries are respectively building energy-saving products, industrial phenolic formaldehyde, casting materials, biomass energy and biomass chemical industry, food and medicine) The original organic wastewater treatment, the water quality is as follows:

[0063]

[0064] The biochemical treatment of the above organic wastewater does not meet the standard, and the electrochemical method of Embodiment 2 is also used for two-stage advanced treatment, so that the COD of the above organic wastewater can be stably reduced to below 50mg / L. The removal rate of COD concentration reaches the national discharge standard.

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Abstract

The invention relates to an electrocatalytic oxidation water treatment device and a method for treatment of hardly degradable organic wastewater. The device includes at least two interconnected electrolytic tanks, each electrolytic tank is internally provided with positive and negative electrode plates respectively, each positive electrode plate and negative electrode plate are respectively connected to the positive pole and negative pole of a power supply, the positive electrode plates adopt titanium based coated plates, and the negative electrode plates adopt titanium plates. The method includes: filtering to-be-treated organic wastewater, making the wastewater to a mean value, and bringing the wastewater into the electrocatalytic oxidation water treatment device; connecting a pulsed power supply in the electrocatalytic oxidation water treatment device, and carrying out electrochemical reaction on the organic wastewater fully under the action of the positive and negative electrode plates. The device provided by the invention has simple structural design, is energy-efficient in treatment of organic wastewater, can be combined with ordinary chemical oxidation water treatment technology and other water treatment technologies to perform process combined treatment or depth treatment on enterprise generated sewage, and can realize industrial application. The treated industrial sewage can be returned to the production process for use as reclaimed water or up-to-standard discharge.

Description

technical field [0001] The invention relates to the technical field of sewage treatment, in particular to an electrocatalytic oxidation water treatment device and a method for treating refractory organic wastewater. Background technique [0002] With the continuous expansion and development of modern industrial production scale, especially in mining metallurgy, petrochemical industry, organic synthesis, pharmaceutical chemical industry, slaughtering and processing, pesticide synthesis, textile printing and dyeing, food processing, electronic materials and other industries, the discharge of industrial wastewater pollution The pollutants have the characteristics of strong toxicity, poor biodegradability, complex pollutant components, some with extremely high content, and some with low content but extremely difficult to degrade. Seriously pollute the environment, cause the water body to deteriorate, and the harm to human health and the living environment is becoming more and mo...

Claims

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Application Information

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IPC IPC(8): C02F1/461C02F1/72C02F9/06
CPCC02F1/001C02F1/46104C02F1/4672C02F1/5281C02F1/66C02F9/00C02F2001/007C02F2301/08
Inventor 孙维孟杨明何伟李焕军王亚伟赵爱民云超湛永航王庆生
Owner 唐山永合水处理剂有限公司
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