Preparation method of drinking water treatment agent

A drinking water treatment and pretreatment technology, applied in water/sewage treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of water purification with water purifiers that have not been seen yet, and achieve the treatment effect Significant, repeatable operation, high purification efficiency effect

Inactive Publication Date: 2013-06-05
CHONGQING UNIV OF ARTS & SCI
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

So far, there have been no relevant reports on the use of chitosan and tourmaline to jointly prepare water purifiers for water purification

Method used

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  • Preparation method of drinking water treatment agent
  • Preparation method of drinking water treatment agent
  • Preparation method of drinking water treatment agent

Examples

Experimental program
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Embodiment 1

[0020] A drinking water treatment agent is prepared in the following steps:

[0021] a. Pretreatment of tourmaline

[0022] Crush the tourmaline through a 200-mesh sieve, wash it with 5% NaOH solution for 5 to 7 times to remove the anions and cations attached to the surface, and then wash it with deionized water for the same number of times, then put it in the oven and dry it. use;

[0023] b. Preparation of superparamagnetic Fe3O4 powder

[0024] Weigh 5.56gFeSO 4 ·7H 2 O, 6.5gFeCl 3 and 1.7mL of concentrated hydrochloric acid were dissolved in 50mL of N 2 Degas the distilled water, then add the above dropwise to 250mL of 1.0mol / L NaOH solution; stir at a slow speed (100r / min) in a water bath at 80°C for 5min, then stir mechanically at a rapid speed (2000r / min), and wait A black precipitate appeared in the solution, and the stirring was continued until 30 min; after the reaction was finished, it was left to cool to room temperature, and the black precipitate product was...

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Abstract

The invention provides a drinking water treatment agent which is prepared by dissolving and uniformly mixing mixed powder of tourmaline and magnetic chitosan microspheres in sodium alginate and polyvinyl alcohol, and solidifying and balling. The magnetic chitosan microsphere is prepared by using superparamagnetic ferroferric oxide, 1-10wt% chitosan acetic acid liquid, liquid paraffin, Span-80 and glutaraldehyde as reaction materials through an emulsion crosslinking method, wherein the mass ratio of the superparamagnetic ferroferric oxide to the chitosan acetic acid liquid is 1:(1-10), the volume ratio of the liquid paraffin to the Span-80 is (10-100):1, the volume ratio of the chitosan acetic acid liquid of superparamagnetic ferroferric oxide to mixed liquid of paraffin-Span-80 is 1:(1-10), and the volume ratio of the mixed liquid of superparaferroferric oxide, paraffin and Span-80 to glutaraldehyde is (5-50):1. According to the water treatment agent, the removal rate of volatile phenol in water is between 80 and 90 percent, and the removal rate of chromium in water is 93 percent; and the magnetic chitosan microsphere treating agent has the advantages of large adsorption capacity, high purification efficiency, low cost, regeneration, no toxicity, no pollution to environment and the like.

Description

[0001] The present invention is a divisional application whose filing date is September 23, 2011, and whose application number is 201110284933.4. technical field [0002] The invention relates to a water treatment preparation, in particular to a preparation method of a drinking water treatment agent with good effect on removing volatile phenol in water. Background technique [0003] Magnetic chitosan can be used to remove Cu from water 2+ 、Cr 2+ , Hg 2+ , Zn 2+ , Pb 2+ , Ca 2+ 、Ag + And other metal ions, can also be used to treat organic wastewater, and can quickly reach equilibrium. There are documents 【27】 It is reported that protein, starch, etc. in food processing wastewater can be recovered by using chitosan as a flocculant. Scholars at home and abroad have discussed the application value of magnetic chitosan from different angles through a large number of studies. There have been many literature reports on the use of magnetic chitosan to metal ions, papermaking...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/30B01J20/28B01J13/02C02F1/28C02F1/58C02F1/62
Inventor 朱启红夏红霞
Owner CHONGQING UNIV OF ARTS & SCI
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