In-situ composite aluminum ferrite water treatment agent as well as preparation method and application method thereof

An in-situ composite and treatment agent technology, applied in the direction of flocculation/sedimentation water/sewage treatment, sterilization/microdynamic water/sewage treatment, sustainable biological treatment, etc., can solve the problem of small, single, ferric acid Solve problems such as poor salt stability, achieve good bactericidal properties, good flocculation performance, and good storage stability

Pending Publication Date: 2022-08-05
CHANGZHOU QINGLIU WATER TREATMENT AGENT
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problems of poor stability of ferrate and poor flocculation performance of sodium aluminate, an in-situ composite aluminum ferrite water treatment agent and its preparation method and application method are provided
The in-situ composite aluminum ferrite medicament of the present invention can solve the shortcomings of the traditional water treatment agent sodium aluminate in the process of water control that the aluminum salt alum is small, not easy to precipitate, and has a single function, and at the same time, the storage stability of the product is better

Method used

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  • In-situ composite aluminum ferrite water treatment agent as well as preparation method and application method thereof
  • In-situ composite aluminum ferrite water treatment agent as well as preparation method and application method thereof
  • In-situ composite aluminum ferrite water treatment agent as well as preparation method and application method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A preparation method of an in-situ composite aluminum ferrite water treatment agent, comprising the following steps:

[0023] Add 200 g (1.2330 mol) of ferric chloride to 300 g of water, stir evenly, add 39 g (0.5 mol) of aluminum hydroxide, beat evenly to obtain a mixture, then add 40 g (1 mol) of sodium hydroxide, and heat up to 75°C Dissolve the insoluble matter in the mixture uniformly, keep the temperature for 1 hour; then add 10 g (0.1343 mol) of sodium hypochlorite, the material turns yellowish brown, and continue stirring until the material turns into a purple-red translucent solution, that is, the in-situ composite aluminum ferrite sodium brine is obtained Treatment agent, the product name is denoted as Fe(VI)-SA.

[0024] The liquid product of this example can be stored stably for at least 3 months at a temperature not higher than 40° C. without precipitation.

Embodiment 2

[0026] A preparation method of an in-situ composite aluminum ferrite water treatment agent, comprising the following steps:

[0027] Add 200 g (1.2330 mol) of ferric chloride (III) to 300 g of water, stir evenly, add 78 g (1 mol) of aluminum hydroxide, beat evenly to obtain a mixed material, then add 120 g (3 mol) of sodium hydroxide, heat up to 80°C to make The insoluble matter in the mixture was uniformly dissolved and kept for 1.5h; then, after adding 45g (0.4970mol) of potassium hypochlorite, the material turned yellow-brown, and continued stirring until the material turned into a purple-red translucent solution, that is, the in-situ composite sodium aluminum ferrite was obtained. Brine treatment agent, the product name is denoted as Fe(VI)-SA.

[0028] The liquid product of this example can be stored stably for at least 3 months at a temperature not higher than 40° C. without precipitation.

Embodiment 3

[0030] A preparation method of an in-situ composite aluminum ferrite water treatment agent, comprising the following steps:

[0031] Add 400 g (2.4660 mol) of ferric chloride (III) to 300 g of water, stir evenly, add 102 g (1 mol) of pseudo-boehmite, beat evenly to obtain a mixture, then add 100 g (2.5 mol) of sodium hydroxide, and heat up to The insoluble matter in the mixture was dissolved evenly at 70°C, and kept for 2 hours; then, after adding 74.5 g (1 mol) of sodium hypochlorite, the material turned yellow-brown, and continued stirring until the material turned into a purple-red translucent solution, that is, the in-situ composite aluminum ferric acid was obtained. Sodium brine treatment agent, the product name is denoted as Fe(VI)-SA.

[0032] The liquid product of this example can be stored stably for at least 3 months at a temperature not higher than 40° C. without precipitation.

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Abstract

The invention relates to an in-situ composite aluminum ferrite water treatment agent as well as a preparation method and an application method thereof, and the preparation method comprises the following steps: adding an insoluble aluminum source into an aqueous solution containing Fe < 3 + >, and uniformly pulping to obtain a mixed material; adding alkali, heating to 50-85 DEG C to uniformly dissolve the mixed material, continuously stirring, and keeping the temperature for at least 30 minutes to obtain turbid liquid; and then adding a chlorine-containing oxidant for oxidation reaction to obtain the in-situ composite aluminum ferrite water treatment agent. The in-situ composite aluminum ferrite water treatment agent disclosed by the invention has relatively good flocculation performance and storage stability, and also has relatively good bactericidal activity.

Description

technical field [0001] The invention relates to the technical field of water treatment agents, in particular to an in-situ composite aluminum ferrite water treatment agent and a preparation method and application method thereof. Background technique [0002] With the continuous development of social industrialization and urbanization, an arduous and important task of environmental protection workers is sewage purification. In sewage treatment or wastewater treatment, water purification, etc., various flocculants need to be used to remove impurities in water and settle them with water-insoluble dispersed substances. The flocculation sedimentation method has the advantages of economy, convenience and high efficiency in water treatment technology. After the flocculant is added to the waste water, the pollutants in the waste water aggregate to form large particles (alum flowers), which can be settled and removed. Flocculants can remove 10 -3 -10 -6 The commonly used floccula...

Claims

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Application Information

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IPC IPC(8): C02F1/50C02F1/52
CPCC02F1/50C02F1/5236Y02W10/10
Inventor 韩晓刚顾玲玲蔡建刚闵建军顾一飞蒋晓春
Owner CHANGZHOU QINGLIU WATER TREATMENT AGENT
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