Phosphate removing agent prepared by loading lanthana on active carbon fibre substrate and preparation method thereof

A technology of activated carbon fiber and phosphorus removal agent, applied in chemical instruments and methods, other chemical processes, water/sludge/sewage treatment, etc., can solve the problems of low phosphorus removal rate and low adsorption capacity, and achieve high adsorption capacity , the effect of high adsorption rate and high removal rate

Inactive Publication Date: 2011-04-13
SHANGHAI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The removal rate of activated carbon fiber for phosphorus in environmental wastewater is not high, and the adsorption capacity is low. It is difficult to meet the standard for wastewater treatment only with activated carbon fiber

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Embodiment one: the concrete steps of this embodiment are:

[0022] 1. Cut the activated carbon fiber into a 0.6cm cube, wash it several times with deionized water, soak it in a certain amount of deionized water, filter, boil, and dry;

[0023] 2. Get 0.2g of the activated carbon fiber gained in step 1, measure the molar concentration of 0.72ml volume and be the lanthanum-containing salt solution of 0.4mol / L, then impregnate the equal volume of activated carbon fiber in the lanthanum-containing salt solution. 8h, filter and dry;

[0024] 3. Put the solid obtained in step 2 into a muffle furnace for activation, the activation temperature is 450°C, and the activation time is 2.5 hours. After reaching room temperature, take it out to obtain the new activated carbon fiber-La adsorbent.

Embodiment 2

[0025] Embodiment two: this embodiment is basically the same as embodiment one, the difference is:

[0026] 1. Cut the activated carbon fiber into a 0.6cm cube, wash it several times with deionized water, soak it in a certain amount of deionized water, filter, boil, and dry;

[0027] 2. Get 0.2g of the activated carbon fiber gained in step 1, measure the molar concentration of 1.8ml volume and be the lanthanum-containing salt solution of 0.4mol / L, then impregnate the equal volume of activated carbon fiber in the lanthanum-containing salt solution, and the immersion time 12h, filter and dry;

[0028] 3. Put the solid obtained in step 2 into a muffle furnace for activation, the activation temperature is 450°C, and the activation time is 2.5 hours. After reaching room temperature, take it out to obtain the new activated carbon fiber-La adsorbent.

Embodiment 3

[0029] Embodiment three: this embodiment is basically the same as embodiment one, the difference is:

[0030] 1. Cut the activated carbon fiber into a 0.6cm cube, wash it several times with deionized water, soak it in a certain amount of deionized water, filter, boil, and dry;

[0031] 2. Get 0.2g of the activated carbon fiber gained in step 1, measure the molar concentration of 0.72ml volume and be the lanthanum-containing salt solution of 0.4mol / L, then impregnate the equal volume of activated carbon fiber in the lanthanum-containing salt solution. 10h, filter and dry;

[0032] 3. Put the solid obtained in step 2 into a muffle furnace for activation, the activation temperature is 450°C, and the activation time is 3 hours. After reaching room temperature, take it out to obtain the new activated carbon fiber-La adsorbent.

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PUM

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Abstract

The invention relates to a novel phosphate removing and absorbing agent of active carbon fibre and lanthana (La) prepared by loading lanthana on the active carbon fibre substrate and a preparation method thereof. The phosphate removing and absorbing agent comprises the following components in percent by weight: 5.54-55.4% of lanthana and 94.46-44.6% of active carbon fibre. The method comprises the following steps of shearing the active carbon fibre into fine blocks, washing with deionized water for many times, dipping in a certain amount of deionized water, filtering, boiling and drying, then dipping the obtained active carbon fibre in a certain amount of lanthanum-containing salt solution, filtering and drying, placing the obtained solid in a muffle furnace, activating the solid at a proper temperature and then taking out to obtain the phosphate removing and absorbing agent of active carbon fibre and La. The novel phosphate removing and absorbing agent of active carbon fibre and La has the advantages of high phosphate removal rate, large absorption volume, high absorption rate, and the like.

Description

technical field [0001] The invention relates to a dephosphorization agent loaded with lanthanum oxide on an activated carbon fiber substrate and a preparation method thereof. Background technique [0002] In recent years, with the continuous enhancement of human activities, phosphorus pollution in water has become increasingly serious. A large amount of phosphorus-rich domestic sewage, industrial wastewater, and farmland water with pesticides and fertilizers entering rivers, lakes and seas will cause eutrophication of water bodies, and the problem of environmental pollution has become increasingly prominent. Therefore, effectively reducing the phosphorus content in discharged wastewater has become an important way to prevent and control water eutrophication and water pollution. The research and development of phosphorus removal agents that can economically and effectively remove phosphorus from sewage has become a very urgent task in the field of environmental protection. ....

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/30C02F1/28C02F1/58
CPCY02W10/37
Inventor 刘建勇张玲万里华段超赵国富
Owner SHANGHAI UNIV
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