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Preparation and use method of adsorbent material for simultaneously removing anions and cations from water

A technology for adsorbing materials and removing water. It is applied in chemical instruments and methods, adsorbed water/sewage treatment, water pollutants, etc., and can solve problems such as waste, hidden dangers of soil, water, and air pollution, and insufficient utilization.

Active Publication Date: 2020-12-08
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the traditional metallurgical industry, high-grade metal deposits are continuously excavated and smelted, but in fact, at each stage of the process, metal-containing waste (solid, liquid, gas) will be generated. Often due to the low grade of valuable metals, which was limited by the economy of the smelting technology at that time, they were not fully utilized, so they were piled up as waste.
Over the years, more and more such "waste" has actually formed a new huge amount of slag mountains. On the one hand, it occupies the land area, and may cause hidden dangers of soil, water, and air pollution in the surrounding environment. It is an invisible waste that contains a considerable amount of valuable metals that have not been utilized.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024]Collect 100kg of high-quality garlic peels, wash them with water, and dry them for later use; crush and sieve them into two kinds of particles with a particle size greater than 2mm and less than 0.5mm; soak them in 50°C warm water (liquid / solid mass ratio Control it at 10), turn it every 2 hours, and change the water with pH=11 to continue soaking after 1 day. After repeated operations for 5 rounds, drain until dry and set aside; wash the coarse particles and dry them to get The absorbent that adsorbs cationic metal elements is named A absorbent. And take the above fine-grained materials. Soak it in 5% hydrochloric acid solution at 40°C (the liquid / solid mass ratio is controlled at 1), turn it every 2 hours, and after 1 day, change the acid solution and continue soaking. After 5 rounds of repeated operations, drain to Dry and set aside. Soak the fine-grained granular material in 35°C containing 0.15mol / L FeCl 3 In the solution (the liquid / solid mass ratio is controlle...

Embodiment 2

[0028] Collect 100kg of high-quality garlic peels, wash them with water, and dry them for later use; crush and sieve them into two kinds of particles with a particle size greater than 2mm and less than 0.5mm; soak them in 50°C warm water (liquid / solid mass ratio Control it at 10), turn it every 2 hours, and change the water with pH=10 to continue soaking after 1 day. After repeated operations for 5 rounds, drain until dry and set aside; wash the coarse particles and dry them to get The absorbent that adsorbs cationic metal elements is named A absorbent. And take the above fine-grained materials. Soak it in 2.5% sulfuric acid solution at 40°C (the liquid / solid mass ratio is controlled at 1), turn it every 2 hours, and after 1 day, change the acid solution and continue soaking. After 5 rounds of repeated operations, drain to Dry and set aside. Soak the fine-grained granular material in 35°C containing 0.10mol / L AlCl 3 In the solution (the liquid / solid mass ratio is controlled...

Embodiment 3

[0032] Collect 100kg of high-quality garlic peels, wash them with water, and dry them for later use; crush and sieve them into two kinds of particles with a particle size greater than 3mm and less than 0.5mm; soak them in warm water at 50°C (liquid / solid mass ratio Control it at 10), turn it every 2 hours, and change the water with pH=10 to continue soaking after 1 day. After repeated operations for 5 rounds, drain until dry and set aside; wash the coarse particles and dry them to get The absorbent that adsorbs cationic metal elements is named A absorbent. And take the above fine-grained materials. Soak it in 5% hydrochloric acid solution at 40°C (the liquid / solid mass ratio is controlled at 1), turn it every 2 hours, and after 1 day, change the acid solution and continue soaking. After 5 rounds of repeated operations, drain to Dry and set aside. Soak the fine-grained granular material at 35°C containing 0.10mol / L ZrOCl·8H 2 In O solution (the liquid / solid mass ratio is con...

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Abstract

The invention relates to a preparation and application method of an adsorbent material for simultaneously removing cations and anions in water, belongs to the field of water treatment, and relates toa technology for simultaneously removing cationic heavy metals such as lead, cadmium, nickel, copper, zinc and the like and anionic elements such as fluorine, phosphorus, arsenic, etc. in water. By mixing and cooperative use of a garlic residue saponification treatment sample and a fully loaded high-valent metal ion sample, adsorption of cationic heavy metal ions and adsorption and removal of anionic element ions are simultaneously realized. The multipurpose of satisfying water purification or extraction and separation of metal resources is achieved by combining multiple functions. The invention has the advantage of simultaneously achieving adsorption and extraction of anionic metal elements and cationic metal elements in water by providing a method for preparing a biological adsorbent material by combination and matching. Thereby, the adsorption and extraction process is significantly simplified, the extraction efficiency is greatly enhanced, and economic and efficient extraction andrecycling of metal resources in increasingly complex multi-component wastewater are satisfied.

Description

technical field [0001] The invention belongs to the field of water treatment, and relates to a technology capable of simultaneously removing cationic heavy metals such as lead, cadmium, nickel, copper, zinc, etc., and anionic elements such as fluorine, phosphorus, arsenic, etc. The mixed and matched use of samples and samples fully loaded with high-valent metal ions can realize the adsorption of cationic heavy metal ions and the simultaneous adsorption and removal of anionic element ions. It has a variety of functional composite combinations to meet the needs of water purification or extraction and separation of metal resources. purpose of the requirement. [0002] technical background [0003] In the actual water treatment process, due to the diversification and complexity of water quality components, there are also comprehensive requirements for separation technology. In those water purification occasions with low trace concentration, adsorption technology is a very suitab...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/24B01J20/30C02F1/28C02F101/20C02F101/14C02F101/10
CPCB01J20/0207B01J20/0211B01J20/0229B01J20/0248B01J20/0251B01J20/0288B01J20/24B01J2220/46B01J2220/4806B01J2220/4825B01J2220/485C02F1/281C02F1/286C02F2101/103C02F2101/105C02F2101/14C02F2101/20
Inventor 黄凯李亚晴王耀耀
Owner UNIV OF SCI & TECH BEIJING
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