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Fenton and Fenton-like system fortifier and using method thereof

A strengthening agent, Fenton's technology, applied in chemical instruments and methods, special compound water treatment, oxidized water/sewage treatment, etc., can solve the problems of low Fenton-like reaction rate, high dosage, limited pH value, etc. , to achieve the effect of low reaction temperature requirement, low dosage and simple use method

Active Publication Date: 2010-08-04
HARBIN INST OF TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to solve the current Fenton, Fenton-like reaction water pH value is limited, Fenton reaction Fe2+ The dosage is too high, and the defect of Fenton-like reaction rate is low, and the Fenton, Fenton-like system strengthening agent and its application method provided

Method used

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  • Fenton and Fenton-like system fortifier and using method thereof
  • Fenton and Fenton-like system fortifier and using method thereof
  • Fenton and Fenton-like system fortifier and using method thereof

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specific Embodiment approach 1

[0015] Specific embodiment one: In this embodiment, Fenton and Fenton-like system strengthening agents are selected from ascorbic acid, sodium sulfite, lithium sulfite, potassium sulfite, magnesium sulfite, calcium sulfite, hydroxylamine hydrochloride, hydroxylamine perchlorate, hydroxylamine sulfate, Hydrazine, N,N-diethylhydroxylamine, carbohydrazide, aminoethanolamine, hydroxylamine solution or nitrogen tetrasubstituted phenylenediamine.

[0016] In this embodiment, Fenton and Fenton-like system strengthening agents can be strengthened with divalent iron salt, ferric salt, ferric salt, zero-valent iron, tetrairon sesquioxide, iron oxide, iron oxyhydroxide, ferrous oxide, cobalt, Cerium, vanadium, nickel, zinc, chromium, silver, scandium, yttrium, zirconium, niobium, molybdenum, technetium, ruthenium, rhodium, palladium, cadmium, lutetium, hafnium, tungsten, rhenium, osmium, iridium, rhenium, CoO, Ce 2 o 3 , CeO 2 , V 2 o 5 、VO 2 , NiO, ZnO, Cr 2 o 3 、Ag 2 O, Sc 2 o...

specific Embodiment approach 2

[0020] Specific embodiment two: The difference between this embodiment and specific embodiment one is: Fenton and Fenton-like system strengthening agents also include ammonium sulfite, sulfurous acid, sodium pyrosulfite, lithium pyrosulfite, potassium pyrosulfite, pyrosulfite Magnesium sulfite, calcium dithionite, ammonium dithionite, sodium dithionite, lithium dithionite, potassium dithionite, magnesium dithionite, calcium dithionite, ammonium dithionite and humic substances one or more of. Other steps and parameters are the same as those in Embodiment 1.

[0021] In this embodiment, the Fenton and Fenton-like system enhancer is composed of two or more components, and the relationship between the components can be in any proportion.

specific Embodiment approach 3

[0022] Specific embodiment three: the difference between this embodiment and specific embodiment one is: Fenton, Fenton-like system strengthening agent is ascorbic acid, sodium sulfite, lithium sulfite, potassium sulfite, magnesium sulfite, calcium sulfite, hydroxylamine hydrochloride , hydroxylamine perchlorate, hydroxylamine sulfate, hydrazine, N,N-diethylhydroxylamine, carbohydrazide, aminoethanolamine or nitrogen tetrasubstituted phenylenediamine. Other steps and parameters are the same as those in Embodiment 1.

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Abstract

The invention provides a Fenton and Fenton-like system fortifier and a using method thereof, which relate to a water treating fortifier and a using method thereof and overcomes the defects that the pH value of the Fenton and Fenton-like system reaction water body is limited, the adding amount of Fe<2+> is overhigh in the Fenton reaction, and the reaction speed is low in Fenton-like reaction. The fortifier is selected from ascorbic acid, sodium sulfite, lithium sulfite, potassium sulfite, magnesium sulfite, calcium sulfite, hydroxylamine, hydroxyl-ammonium perchlorate, hydroxylamine sulfate, hydrazine, N,N-diethylhydroxylamine, carbohydrazide, ethanolamine, a hydroxylamine solution or N,N,N',N'-tetra substituted phenylenediamines. The using method has the following steps of: adding the Fenton and Fenton-like system fortifier, fortificated chemicals and peroxide into the treated water body; and then, uniformly stirring to react. The fortifier can accelerate the reaction of water treatment and decrease the using amount of the fortificated chemicals.

Description

technical field [0001] The invention relates to a water treatment enhancer and its application method. Background technique [0002] my country's current water pollution is becoming more and more serious, and the water quality is becoming more and more complicated. Although the cost of traditional biological treatment is low, it occupies a large area and is usually only suitable for low-concentration biodegradable wastewater. The treatment efficiency of degraded organic wastewater is low, and the system start-up time is long. [0003] In recent years, advanced oxidation technology has become a research hotspot at home and abroad. The advanced oxidation method is simply to use various systems to generate free radicals, so as to achieve the decomposition of organic pollutants, or improve their biodegradability, or directly completely mine purpose. Fenton and Fenton-like systems are most widely used in advanced oxidation. The research on Fenton and Fenton-like systems has a h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/72
CPCC02F1/70C02F1/722C02F2305/026C02F1/72C02F2209/06
Inventor 马军陈丽玮李旭春张静关英红方晶云
Owner HARBIN INST OF TECH
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