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Preparation and application method of an adsorbent material for removing trace amounts of phosphorus in water

An adsorption material and water removal technology, applied in chemical instruments and methods, adsorption water/sewage treatment, water pollutants, etc., can solve the problems of reducing the advantages of biological adsorption materials and difficulty in meeting functional requirements at the same time

Active Publication Date: 2020-09-11
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the limitations of the characteristics of biomass materials, it is often difficult to meet the functional requirements required for the best adsorption effect when dealing with and purifying specific pollutants in certain water media.
At this time, in addition to the preparation of composite functional adsorption materials, it can also be used in conjunction with materials that can provide other special functions, but the premise is that it is convenient and cheap, otherwise, it will significantly reduce the most prominent advantage of the biological adsorption material itself - cheap

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Collect 100kg of high-quality garlic skin, wash it with water, and dry it for later use; crush and siev it into particles with a particle size of less than 2mm; soak it in warm water at 50°C (liquid / solid mass ratio is controlled at 10), every interval Turn once for 2 hours. After 1 day, change the water and continue soaking. After repeating the operation for 5 rounds, drain the water until dry for use; take the above materials and soak them in a food grade 5% hydrochloric acid solution at 40℃ (liquid / solid mass ratio Control it at 1), turn once every 2 hours. After 1 day, change the acid solution and continue soaking. After repeating this operation for 5 rounds, drain until it is dry for use. Divide the granular material obtained through this round of processing into two equal parts. One part is dried and used as raw material A; the other part does not need to be dried, just drain a large amount of water; Soak in 35℃ and contain 0.15mol / L FeCl 3 In the solution (liquid / ...

Embodiment 2

[0025] Collect 100kg of high-quality garlic skins, wash them with water, and dry them for later use; crush and siev them into particles with a particle size of less than 2mm; soak them in warm water at 50°C (liquid / solid mass ratio is controlled at 5), every interval Turn once for 2 hours. After 1 day, change the water and continue soaking. After repeating the operation for 5 rounds, drain the water until it is dry for later use; take the above materials and soak them in a 40℃ food grade 2.5% sulfuric acid solution (liquid / solid mass ratio Control it at 2), turn it once every 2 hours. After 1 day, change the acid solution and continue soaking. After repeating the operation for 5 rounds, drain until it is dry for use. Divide the granular material obtained through this round of processing into two equal parts. One part is dried and used as raw material A; the other part does not need to be dried, just drain a large amount of water; Soaked in 35℃ containing 0.10mol / L AlCl 3 In the...

Embodiment 3

[0029] Collect 100kg of high-quality garlic skin, wash it with water, and dry it for later use; crush and siev it into particles with a particle size of less than 2mm; soak it in warm water at 50°C (liquid / solid mass ratio is controlled at 10), every interval Turn once for 2 hours. After 1 day, change the water and continue soaking. After repeating the operation for 5 rounds, drain the water until it is dry for use. Take the above materials and soak them in a food grade 1mol / L acetic acid solution at 40℃ (liquid / solid mass The ratio is controlled at 2), every 2 hours, turn once, after 1 day, change the acid solution and continue soaking. After repeating the operation for 5 rounds, drain until it is dry for use. Divide the granular material obtained through this round of processing into two equal parts. One part is dried and used as raw material A; the other part does not need to be dried, just drain a large amount of water; Soaked in 25℃ containing 0.10mol / L ZrOCl·8H 2 In O sol...

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Abstract

The invention belongs to the field of water treatment and relates to a deep purification technique of trace phosphorus in water. The preparation method comprises the following steps: taking garlic waste as a basic material, crushing and screening to obtain a particulate material with a particulate size being less than 2 mm, repeatedly soaking the particulate material in water and organic acid or small-molecule acid, drying the particulate material, then dividing the dried particulate material into two parts, drying one part of the particulate material to obtain a raw material A; not drying theother part of the particulate material, then repeatedly soaking the other part of the particulate material which is not dried in water with high-valence metal ions, loading the high-valence metal ions on the other part of the particulate material, and drying the other part of the particulate material to obtain a raw material B; uniformly mixing the raw material A with the raw material B accordingto a mass ratio of 1 to 1, and screening to obtain a compound adsorption material capable of removing phosphorus. The preparation method is capable of preparing a biological material capable of simultaneously acidizing a water medium and adsorbing trace phosphorus in the water in one time; the trouble caused by additional and separate addition of an acid reagent in the using process is avoided; the defect of low phosphorus removal effect caused by direct usage of a zirconium-loaded biological adsorption material is also avoided; the purpose of efficiently adsorbing and removing phosphorus byadding the adsorption material for one time is achieved.

Description

Technical field [0001] The invention belongs to the field of water treatment, and relates to a deep purification technology of trace phosphorus in water. Specifically, it is a composite adsorption material made by using garlic waste as a basic raw material, loaded with high-priced metal ions, and combined with acid-loaded biomass materials. The direct injection adsorption method can be used to achieve the enhanced adsorption and purification effect of trace phosphorus in water. [0002] technical background [0003] Phosphorus is a typical eutrophication element that causes weeds in water bodies (lakes, bays, ponds) to grow wildly, depleting the dissolved oxygen in water bodies, and disturbing the ecological balance of aquatic organisms. Therefore, it will affect aquaculture, biodiversity and even cause negative effects on the deterioration of the human environment. Since phosphorus is an important element for many industrial applications, a large amount of phosphorus-containing i...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F101/10
CPCB01J20/0229B01J20/24B01J2220/4825B01J2220/4875C02F1/286C02F2101/105
Inventor 黄凯王耀耀修祎帆
Owner UNIV OF SCI & TECH BEIJING
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