Method for treating phenolic waste water

A waste water and phenol technology, which is applied in water/sewage treatment, chemical instruments and methods, special compound water treatment, etc., can solve the problems of high treatment efficiency of phenol waste water, heating and pressurizing, and low safety, and achieve the effect of phenol degradation Good, mild reaction conditions, increased safety effect

Inactive Publication Date: 2015-01-14
上海净意供应链管理有限公司
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Problems solved by technology

For example: (1) chemical oxidation method, under the condition of heating and pressure, oxidizing agents such as chlorine dioxide, hydrogen peroxide and ozone are used to oxidize phenolic substances in wastewater into carbon dioxide and water; 2) adsorption method, using adsorption The porous nature of the agent absorbs the phenolic substances in the wastewater, and after the adsorption is saturated, the lye, steam or organic solvent is used for desorption and desorption; 3) Biochemical method, using filamentous bacteria, actinomycetes, fungi, molds and other microorganisms Purification of phenol and phenolic compounds in wastewater; 4) Solvent extraction method, using insoluble water-soluble extractants to

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  • Method for treating phenolic waste water

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Embodiment Construction

[0030] The present invention will be further described below in conjunction with specific embodiments with reference to the accompanying drawings, so as to better understand the present invention.

[0031]

[0032] Prepare activated carbon-supported nanoscale titanium dioxide catalyst according to the following steps:

[0033] a. Disperse the nano-scale titanium dioxide powder in the mixed solution containing granular activated carbon, soak for 10 hours, filter, dry and roast the solid;

[0034] b. soaking the calcined solid in the filtrate obtained by filtering, soaking for 5 hours, filtering, drying and roasting the solid;

[0035] c. Repeat step b at least 5 times.

[0036] The prepared activated carbon-supported nano-scale titania catalyst 5 is loaded into the reaction tower 3 .

[0037] Preparation of ClO in Chlorine Dioxide Generator Using Filler Contact Process Using Sodium Chlorate and Hydrochloric Acid as Raw Materials 2 , NaClO 3 ClO 2 +NaCl+H 2 O. ...

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Abstract

The invention provides a method for treating phenolic waste water. The method comprises the following steps: S1, introducing chlorine dioxide into phenolic waste water and fully mixing chlorine dioxide with phenolic waste water; S2, enabling the phenolic waste water treated in the S1 to flow into a reaction tower filled with an active carbon-loaded nanoscale titanium dioxide catalyst; and S3, introducing oxygen into the reaction tower, and carrying out phenol degradation under irradiation of ultraviolet lights. According to the method for treating phenolic waste water provided by the invention, chlorine dioxide and the active carbon-loaded nanoscale titanium dioxide catalyst are compounded in use to generate a synergistic effect, so that the phenol degradation effect is good. Moreover, during chemical degradation, heating and pressurizing are not needed, the reaction condition is mild, the concentration of chlorine dioxide in reaction is reduced and the treatment safety is further enhanced.

Description

technical field [0001] The invention relates to a method for treating waste water, in particular to a method for treating phenol waste water. [0002] Background technique [0003] Phenol is a raw material and intermediate produced in industries such as papermaking, coking, oil refining, plastics, pesticides, and pharmaceutical synthesis. Phenol-containing wastewater is very harmful to humans. Phenol has a significant corrosive effect on any tissue of the human body, and can invade the human body through mucous membranes, skin contact, inhalation and ingestion. After contact with the eyes, it can cause serious damage to the cornea, even blindness; after contact with the skin, it does not cause pain, but the exposed part initially appears white, if it is not washed away quickly, it can cause severe burns and systemic poisoning; after inhalation, it can cause headaches , dizziness, fatigue, blurred vision, pulmonary edema, etc. After ingestion, it may cause digestive tract ...

Claims

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Application Information

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IPC IPC(8): C02F9/08B01J21/18
CPCC02F1/32B01J21/18C02F1/725C02F1/76C02F2305/10
Inventor 王余标李明王岩岩
Owner 上海净意供应链管理有限公司
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