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Processing method of hardly degraded organic substance

A technology of refractory organic matter and treatment method, applied in the field of refractory organic matter, can solve the problems of complex treatment, secondary pollution, long treatment period, etc., and achieve the effects of mild reaction conditions, good treatment effect and short treatment time.

Inactive Publication Date: 2010-07-14
OCEAN UNIV OF CHINA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the poor biodegradability of such substances (low BOD / COD), it is difficult to achieve good treatment effects by ordinary biological methods, and special strains need to be domesticated, and the treatment cycle is long and complicated.
However, traditional physical and chemical methods such as flocculation and gas stripping only transfer pollutants from liquid phase to solid phase or gas phase, and do not completely eliminate organic pollutants, resulting in secondary pollution and other problems.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0011] Example 1: CO 3 2- Catalyzed potassium hydrogen persulfate (KHSO 5 ) to treat refractory organic wastewater.

[0012] Using Golden Orange II as a Model Pollutant to Study CO 3 2- The treatment effect of catalyzing potassium hydrogen persulfate to treat refractory organic wastewater. Golden Orange II solution 450mL, the concentration is 20mg / L. CO 3 2- The concentration is 0.001mol / L, 0.01mol / L, 0.1mol / L, the molar ratio of Golden Orange II / potassium monopersulfate = 1 / 10, samples are taken at 0.5h, 1h, 2h, 3h, and 4h to detect Golden Orange II concentration.

[0013] Experimental results:

[0014] Table 1. Different concentrations of CO 3 2- concentration catalyzed the treatment effect of potassium peroxymonosulfate on Golden Orange II.

[0015]

[0016] The results showed that CO 3 2- Catalyzed potassium hydrogen persulfate can quickly remove golden orange II, in which CO 3 2- The effect is the best when the concentration is 0.001mol / L, the degradati...

Embodiment 2

[0017] Example 2: HCO 3 - Ion-catalyzed potassium hydrogen persulfate (KHSO 5 ) to treat refractory organic wastewater.

[0018] Using Jincheng II as a model pollutant to study the treatment effect of bicarbonate ion catalyzed potassium hydrogen persulfate on refractory organic wastewater. Golden Orange II solution 450mL, the concentration of Golden Orange II is 20mg / L. The bicarbonate ion concentration is 0.01mol / L, 0.1mol / L. The molar ratio of Golden Orange II / potassium monopersulfate=1 / 10, samples were taken at 0.5h, 1h, 2h, 3h, and 4h to detect the concentration of Golden Orange II.

[0019] Experimental results:

[0020] Table 2. Different concentrations of HCO 3 - Catalyzed treatment effect of potassium peroxymonosulfate on golden orange II.

[0021]

[0022] The results showed that HCO 3 - Catalyzed potassium hydrogen persulfate can quickly remove golden orange II, in which HCO 3 - The effect is the best when the concentration is 0.1mol / L, and the degrada...

Embodiment 4

[0029] Example 4: Cl - Catalyzed potassium hydrogen persulfate (KHSO 5 ) to treat refractory organic wastewater.

[0030] Using Jincheng II as a model pollutant to study the treatment effect of bicarbonate ion catalyzed potassium hydrogen persulfate on refractory organic wastewater. Golden Orange II solution 450mL, the concentration of Golden Orange II is 20mg / L. The bicarbonate ion concentration is 0.01mol / L, 0.1mol / L. The molar ratio of Golden Orange II / potassium monopersulfate=1 / 10, samples were taken at 0.5h, 1h, 2h, 3h, and 4h to detect the concentration of Golden Orange II.

[0031] Experimental results:

[0032] Table 4. Different concentrations of Cl - Catalyzed treatment effect of potassium peroxymonosulfate on golden orange II.

[0033]

[0034] The results showed that Cl - Catalyzed potassium hydrogen persulfate can quickly remove golden orange II, Cl - The effect is the best when the concentration is 0.1mol / L, and the degradation rate can reach 97.8% aft...

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Abstract

The invention relates to a processing method of a hardly degraded organic substance, which is characterized in that common anions in waste water are used as catalyst for activating peroxy-monosulfate to process hardly degraded organic waste water. The processing method comprises the following steps of: firstly detecting the concentration of the anions in the waste water and the concentration of the organic substance in the waste water; when the concentration of the anions is within a specified range, adding the peroxy-monosulfate into the waste water according to the concentration of the organic substance in the waste water, and stirring; and after the waste water meets the discharge requirement, discharging the waste water. The processing method has the advantages that the processing method is carried out at normal temperature and under normal pressure, and the reaction condition is mild; the process is simple, energy and the catalyst do not need to be added, equipment does not need to be added, and the investment is little; an environment-friendly medicine is added, and secondary pollution does not occur; no sludge is generated; the processing time is short, and the processing effect is good.

Description

technical field [0001] The invention belongs to the field of waste water treatment, and in particular relates to a method for treating a refractory organic matter by using anion to catalyze peroxymonosulfate. Background technique [0002] With the development of industry, more and more chemical products are constantly coming out. In these products, many substances will not only seriously pollute the environment, but also are difficult to be degraded by microorganisms, such as printing and dyeing wastewater. The current treatment methods for such substances mainly include biological methods, physical and chemical methods, and advanced oxidation methods. Due to the poor biodegradability of such substances (low BOD / COD), it is difficult to achieve good treatment effects by ordinary biological methods. Special strains need to be domesticated, and the treatment cycle is long and complicated. However, traditional physical and chemical methods such as flocculation and gas strippi...

Claims

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Application Information

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IPC IPC(8): C02F1/72
Inventor 杨世迎王萍杨鑫单良张文义邵雪停牛瑞
Owner OCEAN UNIV OF CHINA
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