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Modified activated carbon adsorbent for adsorbing and removing refractory organics and preparation technology of adsorbent

A technology for the adsorption of refractory organic substances and activated carbon, which is applied in the fields of adsorbing water/sewage treatment, water pollutants, and other chemical processes to achieve the effect of large adsorption capacity and high adsorption efficiency.

Inactive Publication Date: 2018-07-31
高姌
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is still a lack of efficient adsorbent materials for the adsorption and removal of refractory organic matter.

Method used

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Effect test

Embodiment

[0048] The modified activated carbon adsorbent used to adsorb and remove refractory organic matter is prepared by the following process:

[0049] 1) Wash 1000 g of activated carbon with a particle size of 1 to 2 cm with tap water, then with absolute ethanol, then with deionized water, and then place it in a drying oven at a temperature of 125° C. for 50 minutes to obtain substance A;

[0050] 2) 8.65 grams of NbCl 4 and 2.68 g of ZnCl 2 Add to 8000mL deionized water, stir at 1000r / min for 3 minutes, shake well and divide into 4 equal parts to obtain mixed solution H1, mixed solution H2, mixed solution H3, and mixed solution H4;

[0051] 3) 140mL Cu(NO 3 ) 2 solution and 60 mL of Mg(NO 3 ) 2 The solution was added to the mixed solution H1, and stirred at 1000r / min for 3 minutes to obtain the mixed solution J1;

[0052] 4) Add substance A to the mixture J1, shake it in a shaker at 35°C for 40 minutes, filter and remove the liquid to obtain substance B1, place substance B1 ...

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PUM

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Abstract

The invention discloses a modified activated carbon adsorbent for adsorbing and removing refractory organics. Activated carbon is cleaned and then modified with mixed liquid prepared from NbCl4, ZnCl2, Cu(NO3)2 and Mg(NO3)2 to obtain matter B; the matter B is modified with mixed liquid prepared from sodium aluminate, ammonium hexafluorophosphate, potassium borohydride and lithium chloride to obtain matter D; the matter D is modified with mixed liquid prepared from tert-butyldimethylsilyl chloride, cyclohexanecarboxaldehyde, phenyltrimethoxysilane, 2,2,3,3-tetrafluoropropyl 4-toluenesulfonate and hydroxypropyl-beta-cyclodextrin to obtain matter which is the modified activated carbon adsorbent for adsorbing and removing the refractory organics. The prepared modified activated carbon adsorbent has the advantages that for the refractory organics in waste water, the adsorbing efficiency is high, and the adsorption capacity is large.

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to a modified activated carbon adsorbent for adsorbing and removing refractory organic matter and a preparation process thereof. Background technique [0002] In recent years, with the rapid development of modern industry and agriculture, the amount of wastewater discharge is increasing day by day, and the composition and types of pollutants contained in wastewater are becoming more and more complicated, including phenolic compounds, organochlorine compounds, organophosphorus pesticides, poly Chlorinated biphenyls, polycyclic aromatic hydrocarbons, nitro compounds, organic dyes, endocrine disruptors, surfactants and other organic pollutants seriously endanger the living environment of human beings. Refractory organics are generally highly toxic, and some pollutants have "three-caused" effects (teratogenic, carcinogenic, mutagenic), strong stability, and slow...

Claims

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Application Information

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IPC IPC(8): B01J20/20B01J20/30C02F1/28C02F101/30
CPCB01J20/20C02F1/281C02F2101/30
Inventor 高姌
Owner 高姌
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