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Preparation method and application method of adsorption material for removing trace 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 problems that are difficult to meet functional requirements at the same time and reduce the advantages of biological adsorption materials

Active Publication Date: 2019-01-18
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

[0020] Collect 100kg of high-quality garlic skin, wash it with water, and dry it for later use; crush it and sieve it into particles with a particle size of less than 2mm; soak it in 50°C warm water (the liquid / solid mass ratio is controlled at 10), every interval After 2 hours, turn it once, and after 1 day, change the water and continue soaking. After 5 rounds of repeated operations, drain until dry and set aside; take the above materials and soak them in 40°C food-grade 5% hydrochloric acid solution (liquid / solid mass ratio Control it at 1), and turn it every 2 hours. After 1 day, change the acid solution and continue soaking. After repeating this operation for 5 rounds, drain the water until it is dry and set it aside. Divide the granular material obtained through this round of treatment into two parts, one part is dried and reserved, and named A raw material; the other part does not need to be dried, just drain a large amount of water; then it is Soaked at 35°C containing...

Embodiment 2

[0024] Collect 100kg of high-quality garlic skin, wash it with water, and dry it for later use; crush it and sieve it into particles with a particle size of less than 2mm; soak it in 50°C warm water (the liquid / solid mass ratio is controlled at 5), every interval After 2 hours, turn it once, and after 1 day, change the water and continue soaking. After 5 rounds of repeated operations, drain until dry and set aside; take the above materials and soak them in 40°C food-grade 2.5% sulfuric acid solution (liquid / solid mass ratio Control it at 2), and turn it every 2 hours. After 1 day, change the acid solution and continue to soak. Divide the granular material obtained through this round of treatment into two parts, one part is dried and reserved, and named A raw material; the other part does not need to be dried, just drain a large amount of water; then it is Soaked at 35°C containing 0.10mol / L AlCl 3 In the solution (the liquid / solid mass ratio is controlled at 3), the pH of the...

Embodiment 3

[0028] Collect 100kg of high-quality garlic skin, wash it with water, and dry it for later use; crush it and sieve it into particles with a particle size of less than 2mm; soak it in 50°C warm water (the liquid / solid mass ratio is controlled at 10), every interval After 2 hours, turn it once, and after 1 day, change the water and continue soaking. After 5 rounds of repeated operations, drain the water until dry and set aside; take the above materials and soak them in 40°C food-grade 1mol / L acetic acid solution (liquid / solid mass The ratio is controlled at 2), turning once every 2 hours. After 1 day, change the acid solution and continue soaking. After 5 rounds of repeated operations, drain until dry and set aside. Divide the granular material obtained through this round of treatment into two parts, one part is dried and reserved, and named A raw material; the other part does not need to be dried, just drain a large amount of water; then it is Soaked at 25°C containing 0.10mol / ...

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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 for trace amounts of phosphorus in water, specifically a composite adsorption material made by using garlic waste as the basic raw material, loaded with high-valent metal ions, and combined with acid-loaded biomass materials. The adsorption method of direct delivery can be used to realize the enhanced adsorption and purification effect of trace phosphorus in water. technical background [0002] Phosphorus is a typical eutrophication element, which leads to the crazy growth of weeds in water bodies (lakes, bays, ponds), depletes the dissolved oxygen in water bodies, and disturbs the ecological balance of aquatic biological systems. Therefore, it will affect aquaculture, biodiversity, and even cause negative effects on the deterioration of the environment in which human beings live. Since phosphorus is an important element in many industrial applications...

Claims

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Application Information

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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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