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Heavy metal adsorbent and preparing method and application thereof

An adsorbent and heavy metal technology, applied in the field of heavy metal adsorbent and its preparation, can solve the problems of low efficiency of heavy metal adsorption by red jade soil, and achieve the effects of high reuse times, easy recovery and high adsorption capacity

Inactive Publication Date: 2017-05-24
ZHENGZHOU LIFUAI BIOLOGICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, the efficiency of heavy metal adsorption by single red jade soil is low, how to simply treat it to improve the efficiency of adsorption of heavy metals is the problem to be solved in this patent

Method used

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  • Heavy metal adsorbent and preparing method and application thereof

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Embodiment 1

[0017] In the embodiment of the present invention, a heavy metal adsorbent is composed of the following raw materials in parts by weight: 27 parts of red jadeite, 13 parts of dichloroacetic acid, 2 parts of titanium isopropoxide, and 5 parts of salicylic alcohol.

[0018] Mix dichloroacetic acid with 4.8 times its mass of deionized water to prepare a dichloroacetic acid solution. Mix and grind red jade soil and titanium isopropoxide, pass through a 120-mesh sieve, then add dichloroacetic acid solution, raise the temperature to 72°C and ultrasonically treat at this temperature for 32min, the ultrasonic power is 1000W, then add salicylic alcohol dropwise, and the addition is completed Then heat up to 112°C and seal and stir at this temperature for 53 minutes, then microwave for 20 minutes with a microwave power of 800W, stir at 99°C until dry, and then calcinate in a muffle furnace at 430°C for 4 hours to obtain Adsorbent.

[0019] Through repeated experiments, it is obtained t...

Embodiment 2

[0021] In the embodiment of the present invention, a heavy metal adsorbent is composed of the following raw materials in parts by weight: 35 parts of red jade earth, 21 parts of dichloroacetic acid, 6 parts of titanium isopropoxide, and 12 parts of salicylic alcohol.

[0022] Mix dichloroacetic acid with 4.8 times its mass of deionized water to prepare a dichloroacetic acid solution. Mix and grind red jade soil and titanium isopropoxide, pass through a 120-mesh sieve, then add dichloroacetic acid solution, raise the temperature to 72°C and ultrasonically treat at this temperature for 32min, the ultrasonic power is 1000W, then add salicylic alcohol dropwise, and the addition is completed Then heat up to 112°C and seal and stir at this temperature for 53 minutes, then microwave for 20 minutes with a microwave power of 800W, stir at 101°C until dry, and then calcinate in a muffle furnace at 430°C for 4 hours to obtain Adsorbent.

[0023] Through repeated experiments, it is obtai...

Embodiment 3

[0025] In the embodiment of the present invention, a heavy metal adsorbent is composed of the following raw materials in parts by weight: 29 parts of red jadeite, 15 parts of dichloroacetic acid, 3 parts of titanium isopropoxide, and 7 parts of salicyl alcohol.

[0026] Mix dichloroacetic acid with 4.8 times its mass of deionized water to prepare a dichloroacetic acid solution. Mix and grind red jade soil and titanium isopropoxide, pass through a 120-mesh sieve, then add dichloroacetic acid solution, raise the temperature to 72°C and ultrasonically treat at this temperature for 32min, the ultrasonic power is 1000W, then add salicylic alcohol dropwise, and the addition is completed Then heat up to 112°C and seal and stir at this temperature for 53 minutes, then microwave for 20 minutes with a microwave power of 800W, stir at 100°C until dry, and then calcinate in a muffle furnace at 430°C for 4 hours to obtain Adsorbent.

[0027] Through repeated experiments, it is obtained th...

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Abstract

The invention discloses heavy metal adsorbent and a preparing method and application thereof. The adsorbent is prepared from, by weight, 27-35 parts of akadama, 13-21 parts of dichloroacetic acid, 2-6 parts of titanium isopropylate and 5-12 parts of salicylol. The preparing method includes the steps that akadama and titanium isopropylate are mixed and ground, a dichloroacetic acid solution is added, then ultrasonic treatment is carried out, salicylol is added dropwise, seal heating and stirring treatment are carried out, then microwave treatment is carried out, and the product is stirred to be dry and calcinated at high temperature to obtain the heavy metal adsorbent. The prepared adsorbent is high in heavy metal adsorption efficiency and can be reused by 100 times or more. The heavy metal adsorbent is high in adsorption capacity and adsorption speed, the preparing method is simple, heavy metal can be recovered through acid treatment after the heavy metal adsorbent is used and is calcinated at the high temperature of 450 DEG C to regenerate the adsorbent, and the number of times of recycle is large; desorption is complete, and the heavy metal recovery cost is low; the heavy metal adsorbent is low in treatment cost when used for treating heavy metal wastewater, simple in process, free of secondary pollution and suitable for industrial production.

Description

technical field [0001] The invention relates to the technical field of environmental protection materials, in particular to a heavy metal adsorbent and its preparation method and application. Background technique [0002] At present, there are three main types of heavy metal wastewater treatment methods: chemical reaction removal method, adsorption concentration separation removal method, and microbial or plant removal method. The first category is the removal of heavy metal ions in wastewater through chemical reactions, including neutralization precipitation, sulfide precipitation, ferrite co-precipitation, chemical reduction, electrochemical reduction, and polymer heavy metal collectors; The second category is the method of adsorbing, concentrating, and separating heavy metals in wastewater without changing their chemical form, including adsorption, solvent extraction, evaporation and coagulation, ion exchange, and membrane separation; the third category is by means of Me...

Claims

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Application Information

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IPC IPC(8): B01J20/12C02F1/28B01J20/30C02F101/20
CPCB01J20/12B01J20/06C02F1/288C02F2101/20
Inventor 不公告发明人
Owner ZHENGZHOU LIFUAI BIOLOGICAL TECH CO LTD
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