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Adsorption material capable of removing ammonia nitrogen in solution and preparation method of adsorption material

An adsorption material and solution technology, applied in the field of water pollution control, can solve the problems of low adsorption efficiency and high price, and achieve the effects of fast adsorption speed, low price and high adsorption capacity

Inactive Publication Date: 2016-06-22
武汉沃特工程技术有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these materials are either expensive or have low adsorption efficiency. Therefore, it is urgent to develop targeted and applicable strong adsorbents to meet social and market needs.

Method used

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  • Adsorption material capable of removing ammonia nitrogen in solution and preparation method of adsorption material
  • Adsorption material capable of removing ammonia nitrogen in solution and preparation method of adsorption material
  • Adsorption material capable of removing ammonia nitrogen in solution and preparation method of adsorption material

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Embodiment 1

[0030] An adsorption material for removing ammonia nitrogen in a solution: the raw material is cotton stalks, and the cotton stalks are anaerobically fired at 300°C for 2 hours, and the anoxic fired products are ground and passed through a 16-20 mesh sieve to collect the retentate. Then wash it with water until the pH value is constant, and dry it at 105°C for later use, so as to obtain an adsorption material for removing ammonia nitrogen in the solution.

Embodiment 2

[0032] An adsorption material for removing ammonia nitrogen in a solution: the raw material is cotton stalks, and the cotton stalks are modified by 1.0 mol / L NaOH or KOH solution. The modification method is as follows: the cotton stalks and the alkali solution are added into the alkali solution according to the solid-to-liquid ratio of 1g:2.5mL, soaked for 2 hours, and dried at 105°C.

[0033] The modified cotton stalks are anoxic fired at 300°C for 2 hours, and the anoxic fired product is ground and passed through a 16-20 mesh sieve to collect the intercepted product, then rinsed with water until the pH value is constant, and dried at 105°C Standby, must remove the adsorption material of ammonia nitrogen in the solution.

Embodiment 3

[0035] The raw material of an adsorption material for removing ammonia nitrogen in a solution is cotton stalks, and the cotton stalks are anaerobically fired at 290°C for 1 hour, and the anoxic fired products are ground and passed through a 16-20 mesh sieve to collect the retentate, and then Rinse with water until the pH value is constant, dry at 100°C for later use, and obtain an adsorption material for removing ammonia nitrogen in the solution.

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Abstract

The invention discloses an adsorption material capable of removing ammonia nitrogen in a solution. A raw material comprises cotton straws; and the cotton straws are combusted for 1-3 hours at 290 DEG C to 350 DEG C without oxygen to obtain the adsorption material capable of removing the ammonia nitrogen in the solution. The invention further provides a preparation method of the adsorption material capable of efficiently removing the ammonia nitrogen in the solution; a biological carbon adsorbent prepared by the method can be used for efficiently removing the ammonia nitrogen in the solution and the adsorption amount can reach about 209.4mg / g; and the ammonia nitrogen adsorption mount of the modified adsorbent can reach about 518.9mg / g.

Description

technical field [0001] The invention relates to an adsorption material for removing ammonia nitrogen in a solution and a preparation method thereof, belonging to the technical field of water pollution control. Background technique [0002] As the earth's water resources become increasingly scarce, people pay more and more attention to the protection of the water environment and the regeneration and reuse of sewage (rain) water resources. On the one hand, at present, many natural water bodies in China are seriously polluted, and eutrophication has caused the water bodies to degrade to Class VI or inferior to Class VI. Water body restoration is an urgent problem to be solved at present; on the other hand, the treatment processes of urban sewage treatment plants are mostly secondary Treatment, the effluent can generally reach the I-level B standard of the "Integrated Sewage Discharge Standard". With the strengthening of the country's environmental protection protection, the wat...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J20/30C02F1/28
CPCB01J20/24B01J2220/4825C02F1/286
Inventor 薛英文高菲邓品亚
Owner 武汉沃特工程技术有限公司
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