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Method for processing organic waste water

A technology for organic waste water and waste water, which is applied in chemical instruments and methods, reduced water/sewage treatment, oxidized water/sewage treatment, etc. It can solve problems such as difficult to adapt to complex components, easy deactivation of catalysts, harsh environmental conditions, etc., to achieve Avoid rapid corrosion or deactivation, environmental friendliness, and protect human health

Inactive Publication Date: 2012-03-14
上海伊克诺环境科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Compared to the traditional homogeneous Fenton system (Fe 2+ / H 2 o 2 ), the heterogeneous Fenton-like system has the advantages of less hydrogen peroxide consumption and easy recovery of catalytic materials, but there are still problems such as narrow pH range for effective action, easy deactivation and difficult regeneration of catalysts, and it is difficult to adapt to complex components and environmental conditions. Harsh organic wastewater treatment

Method used

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  • Method for processing organic waste water
  • Method for processing organic waste water

Examples

Experimental program
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Effect test

Embodiment 1

[0020] Polyethylene-coated waste iron wire with a diameter of 5mm and a length of 20cm exposes the circumference every two centimeters. As the stirring blade of the mixer, it can efficiently reduce the azo dyes in the range of pH3 to pH7, and can dissolve 200mL of the solution in half an hour 100mg / L methyl orange, reactive brilliant red and other dyes are completely decolorized, significantly improving their biodegradability (the lower the pH, the shorter the treatment time, for example, when the pH is 3, the reaction time is less than 10 minutes, and 100mg / L formazan in 200mL solution can be decolorized. base orange, reactive brilliant red and other dyes are completely decolorized). The cost of the material is low, the production process is simple, and the efficiency drops by less than 5% after repeated 30 times. At the same time, it is easy to operate and can be used with different devices to efficiently treat dye wastewater.

Embodiment 2

[0022] Polypropylene-coated iron wire with a diameter of 5mm and a length of 20cm exposes the circumference every two centimeters. As the stirring blade of the mixer, it can efficiently reduce and treat chlorophenol organic pollutants in the range of pH3 to pH7 (the lower the pH, the shorter the treatment time ), the dechlorination rate of 10mg / L pentachlorophenol, o-chlorophenol and other chlorophenol organic pollutants in 200mL solution can be as high as 75% within one hour, which significantly improves its biodegradability. The cost of the material is low, the production process is simple, and the efficiency drops by less than 10% after repeated ten times. At the same time, it is easy to operate and can be used with different devices to efficiently treat chlorophenol organic wastewater.

Embodiment 3

[0024] The exposed side of the polyethylene-coated iron plate (2m × 2m × 0.5cm) is used as the stirring blade of the mixer, which can efficiently oxidize and degrade chlorophenol organic pollutants in the range of pH3 to pH7 (the lower the pH, the shorter the treatment time). Chlorophenol organic pollutants such as 50mg / L pentachlorophenol and o-chlorophenol in a 200mL solution can be completely degraded within hours. The cost of the material is low, the production process is simple, and the efficiency drops by less than 10% after repeated 30 times. At the same time, it is easy to operate and can be used with different devices to efficiently oxidize and degrade chlorophenol organic wastewater.

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Abstract

The invention discloses a method for processing organic waste water, which comprises the following steps that: a cladding-typed iron-based material is prepared by utilizing organic plastic to incompletely wrap an iron-based material, and the cladding-typed iron-based material is arranged in organic waste water with the pH value of 3 to 7 to process; and the organic plastic is polyethylene, polypropylene or polyfluortetraethylene, and the iron-based material is zero-valent iron. The iron-based material has vast raw material source, low cost, simple production process, stable performance, environmental friendliness, high reaction efficiency, repeatability and long service life. The method can be used for processing water having different organic pollution, can be adjusted according to characteristics of typical organic pollutants in different industries and according to the local conditions, can overcome the weaknesses of the different traditional technologies, is convenient and easy to operate and has high efficiency.

Description

technical field [0001] The invention belongs to the field of water pollution control and restoration, and in particular relates to a method for treating organic waste water. Background technique [0002] Chemical, printing and dyeing, textile, food, electromechanical, brewing, pharmaceutical and other industries produce a large amount of wastewater containing organic pollutants, threatening ecological security and human health. Commonly used organic wastewater treatment methods are mainly divided into three categories: physical methods, chemical methods and biological methods, such as adsorption, membrane separation, incineration, extraction, wet catalytic oxidation, photocatalysis, electrochemical and microbial degradation methods, etc. Each has its own advantages and limitations. For organic wastewater with complex components and refractory biodegradability, it is urgent to develop a more universal and economical treatment method based on the integration of various factors...

Claims

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Application Information

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IPC IPC(8): C02F1/70C02F1/72C02F101/38C02F101/36
Inventor 侯梅芳唐小燕廖琳
Owner 上海伊克诺环境科技有限公司
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