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Method for removing organic in water solution by using acroleic acid macroporous adsorption resin

A technology of pore adsorption and acrylic acid, which is applied in the direction of adsorption of water/sewage treatment, chemical instruments and methods, and other chemical processes. Problems such as loss of ion exchange function, to achieve good water quality, high removal rate of organic matter, and good water repeatability

Active Publication Date: 2009-05-06
NINGBO ZHENGGUANG RESIN CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Domestic research on adsorption resins mostly focuses on styrene-based macroporous adsorption resins. The disadvantages are: first, it will cause "poisoning" during use, that is, after a period of use, it will lose its ion exchange function. , this is due to the copolymerization characteristics of styrene and divinylbenzene; second, during the copolymerization process, since the self-polymerization rate of divinylbenzene is greater than that of copolymerization with styrene, the divinyl that enters the copolymer at the initial stage of polymerization The proportion of benzene units is relatively high, and in the later stage of polymerization, divinylbenzene monomer has been basically consumed, and the reaction is mainly the self-polymerization of styrene
During regeneration, due to the structure of sparse outside and dense inside, larger ions will be stuck in the molecular gap, and it is difficult to exchange with mobile ions, and eventually lose the exchange function, resulting in resin "poisoning" and poor adsorption to organic matter. The adsorption effect on macromolecular organic substances humic acid and fulvic acid is not obvious

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  • Method for removing organic in water solution by using acroleic acid macroporous adsorption resin
  • Method for removing organic in water solution by using acroleic acid macroporous adsorption resin
  • Method for removing organic in water solution by using acroleic acid macroporous adsorption resin

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Embodiment Construction

[0035] 1. Physical and chemical properties, application conditions and performance of acrylic macroporous adsorption resin

[0036] 1. Physical and chemical performance indicators of acrylic macroporous adsorption resin:

[0037] Indicator name index Exterior milky skeleton Acrylic Factory type Chlorine type Moisture content % 65～75 Volume full exchange capacity mmol / ml ≥0.8 Wet true density g / ml 1.03～1.10 Wet density g / ml 0.65～0.72 Range Granularity % (0.315~1.25mm)≥95 coefficient of uniformity ≤1.60 Effective particle size mm 0.400～0.700 Penetration spherical rate % ≥90％ Specific surface area m 2 / g 500～2000 Pore ​​volume ml / g ≥0.65

[0038] 2. Use parameters:

[0039] parameter data Applicable pH range 0～14 Operating temperature ℃ ≤40 Resin layer height m 1.0～3.0 Design backwash space % 50～100 Operating flow rate m / h 8～15

[0040]...

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Abstract

The invention relates to a method for removing organic matters in aqueous solution by using acrylic macroporous absorption resin. The organic matters in the solution uses the acrylic macroporous absorption resin for absorption, thus being capable of effectively removing the organic matters in the aqueous solution with high adsorption capacity, high removal efficiency and high elution rate.

Description

technical field [0001] The invention relates to a method for removing organic matter in an aqueous solution by using an acrylic macroporous adsorption resin, and belongs to the field of water treatment method manufacturing. Background technique [0002] With the rapid development of industry and the improvement of people's living standards, more and more industrial wastewater and domestic sewage are produced, resulting in more and more serious water pollution. The main feature of water quality deterioration is the increase of dissolved organic matter in water. The increase of organic matter content in natural water has brought great harm to industrial water and civil domestic water. How to remove organic matter in water has become an urgent problem to be solved in industrial water and tap water treatment. [0003] After the natural water is polluted, the organic matter in the water is very complex, including natural organic matter (including humus, etc.) At present, 2221 k...

Claims

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Application Information

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IPC IPC(8): C02F1/28B01J20/26
Inventor 沈建华钟轶泠徐斌修慧敏
Owner NINGBO ZHENGGUANG RESIN CO LTD
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