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Novel methods for treating phenolic waste water pollution by phenol water coal slurry method

A technology of phenol water slime and phenol wastewater, which is applied in the field of harmless and thorough treatment, can solve the problems of organic matter enrichment, phenol pollution that cannot be effectively and completely solved, and can not be treated, so as to improve utilization rate and solve accumulation and pollution problems, money-saving effects

Inactive Publication Date: 2008-12-24
西安润格环保科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0020] Harbin Gasification Plant and Henan Jieyuan Membrane Treatment Company discussed the coal gas wastewater in Harbin Gasification Plant. The pretreatment can ensure the water inlet requirements of the membrane, but part of the concentrated liquid that passes through the membrane needs to be returned to the extraction section for secondary extraction. After testing It was found that a part of the organic matter in the phenolic water was not extractable, and as a result, this part of the organic matter was enriched in the system and could not be processed in the end, so the Harbin Gasification Plant gave up the membrane method
[0021] In summary, the above methods have their own shortcomings, and they cannot completely solve the problem of phenol pollution effectively.

Method used

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  • Novel methods for treating phenolic waste water pollution by phenol water coal slurry method
  • Novel methods for treating phenolic waste water pollution by phenol water coal slurry method
  • Novel methods for treating phenolic waste water pollution by phenol water coal slurry method

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Embodiment 1

[0053] Adopt the new method of phenol-water slime method to control the pollution of phenol-containing wastewater, and its composition comprises: concentrate phenol-containing wastewater, then:

[0054] A. the described phenol-containing waste water is improved wherein phenol concentration by membrane filtration, discharges clear water, has reduced the volume of phenol-containing waste water;

[0055] B. Mix the concentrated water and pulverized coal to make phenol water slime;

[0056] C. Use the slime transportation technology to transport the phenol-water coal slime to the fluidized bed boiler for combustion treatment, so that the high-concentration phenol-containing wastewater is cracked and burned in the boiler;

[0057] D. Output the energy obtained from combustion in the form of heat or electricity.

Embodiment 2

[0059] The new method of adopting phenol-water slime method to control phenol-containing wastewater pollution described in embodiment 1, the membrane filtration is multi-stage membrane filtration, the concentrated water produced after each stage of filtration is discharged to the high concentration water tank, and the fresh water produced is returned to the high-concentration water tank. use.

[0060] (1) Fine filtration

[0061] This solution uses a precision filter that can remove particulate impurities above 1 micron, and the filter element is a wire-wound filter element. The shell of the precision filter is made of stainless steel, and the flange is fixed between the cylinder body and the head, so it is very convenient to replace the filter element. The filtration rate of the filter element is 8m 3 / m 2 h, not only removes particulate impurities, but also removes chroma, turbidity, soluble organic pollutants, low-molecular organic substances, etc., intercepts mechanical...

Embodiment 3

[0081] The new method of using the phenol-water slime method to control phenol-containing wastewater pollution, the production and transportation flow chart of the phenol-water slime are as follows image 3 shown. Phenol-containing wastewater concentrated water and fine coal powder are used to make phenol-water slime, which is transported to the fluidized bed through the slime pipeline system. Coal slime transportation technology is through the coal slime pipeline transportation system. In order to ensure the transportation speed, the method of increasing the pressure and concentration can be used for long-distance transportation. In order to avoid pollution, it should be transported in a fully enclosed pipeline transportation method. After arriving at the destination, through the kneading machine, feeding screw, stirring buffer tank, pre-pressing screw, inspection gate, concentrated material pump, high-pressure and low-friction composite pipeline, high-low pressure concentrat...

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Abstract

The invention discloses a novel method which adopts phenol-water coal-slime to dispose of phenol contained wastewater contamination. As the increase of coal chemical production load, the quantity of phenol contained wastewater rises continuously, and draining the phenol water to rivers causes contamination and storing the phenol water in pools cannot completely solve contamination as the water quantity is too large. The method of the invention includes that firstly the phenol contained wastewater is collected, wherein, A. the phenol contained wastewater is filtered through membrane filtration to raise the concentration thereof and to drain clean water so as to reduce the volume of phenol contained wastewater; B. the concentrated water is mixed with slack coal so as to be made into the phenol-water coal-slime; C. the phenol-water coal-slime is transited to a fluidized-bed boiler by using a coal-slime transit technique for combustion disposal so as to disintegrate and combust the high-concentration phenol contained wastewater in the boiler; D. the energy obtained through combustion is output as heat energy or electricity powder. The invention is suitable for the decontamination treatment to the phenol contained wastewater and the treatment to wastewater containing organic oxide, organic cyanide, aromatic hydrocarbon and derivatives thereof.

Description

Technical field: [0001] The invention relates to a new technological method for harmless and thorough treatment of the pollution of phenol-containing wastewater produced in the process of coal chemical industry. Background technique: [0002] Coal gasification is one of the main processes in coal chemical enterprises. At present, several popular gasifiers are: entrained bed gasifier, fluidized bed gasifier and moving bed pressurized gasifier. Among them, the moving bed pressurized gasifier has been well localized in China. Representative furnace types are Lurgi furnace and PKM furnace. There are many manufacturers using moving bed pressurized gasifiers in my country, and each manufacturer operates a large number of units. For example, the Yunnan Liberation Army Fertilizer Plant has 9 units; the Shanxi Fertilizer Plant has 5 units; the Harbin Gasification Plant has 5 units; and the Yima Gasification Plant has 3 units. Moreover, some chemical companies plan to adopt this ty...

Claims

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Application Information

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IPC IPC(8): F23G7/04F23K1/02C02F1/44
Inventor 王伟东郭欣吴勃任宝生邹春玉牛玉梅郑铁军
Owner 西安润格环保科技有限公司
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