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Water treatment agent and preparation method

A technology of water treatment agent and solution, which is applied in water/sewage treatment, adsorption water/sewage treatment, water/sludge/sewage treatment, etc. It can solve the problems of purifying water with water purifiers that have not yet been seen, and achieve remarkable treatment effects , strong repeatability and low cost

Inactive Publication Date: 2013-04-10
CHONGQING UNIV OF ARTS & SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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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  • Water treatment agent and preparation method
  • Water treatment agent and preparation method
  • Water treatment agent and preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A water treatment agent is prepared in the following steps:

[0026] a. Pretreatment of tourmaline

[0027] Crush tourmaline through a 200-mesh sieve, wash 5-7 times with NaOH solution with a mass concentration of 5% to remove the anions and cations attached to the surface, and then wash with deionized water for the same number of times, then put it in an oven to dry, and wait for use;

[0028] b. Preparation of superparamagnetic Fe3O4 powder

[0029] Weigh 5.56g FeSO 4 ·7H 2 O, 6.5g FeCl 3 and 1.7mL of concentrated hydrochloric acid were dissolved in 50mL of N 2Degassed distilled water, and then added dropwise to 250mL of 1.0mol / L NaOH solution; stirred at a slow speed (100r / min) in a water bath at 80°C for 5min, and then stirred at a fast speed (2000r / min), and the solution was A black precipitate appeared in the solution, and the stirring was continued for 30 minutes; after the reaction was completed, it was left to cool down to room temperature, and the black ...

Embodiment 2～7

[0034] Embodiment 2~7: carry out by following each material and step, all the other are with embodiment 1.

[0035]

[0036]

[0037] The removal rate of the tourmaline / magnetic chitosan microspheres prepared above is 78% to 90% for the volatile phenol in the source water.

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Abstract

A water treatment agent is made by adding blended powder of tourmaline and magnetic chitosan microsphere into sodium alginate and polyvinyl alcohol for resolving and uniform mixing and then curing. The magnetic chitosan microsphere is made by taking superparamagnetic ferroferric oxide, 1 to 10wt percent of chitosan acetic acid solution, liquid paraffin, Span-80 and glutaraldehyde solution as reaction mass and adopting an emulsion crosslinking method, the mass ratio of the superparamagnetic ferroferric oxide and chitosan acetic acid solution is 1 to 1-10, the volume ratio of liquid paraffin and Span-80 is 10-100 to 1, the volume ratio of chitosan acetic acid solution of superparamagnetic ferroferric oxide and paraffin and Span 80 is 1 to 1-10, and the volume ratio of the mixed liquor of the chitosan acetic acid solution and the paraffin, and the glutaraldehyde solution is 5-50 to 1. The water treatment agent disclosed by the invention ensures that removal ratio of volatile phenol in water can reach 80 to 90 percent and the removal ratio of chromium in water can reach 93 percent, and meanwhile has the advantages of high adsorption capacity, high purification efficiency, low cost, renewability, innocuity, zero contamination to environment, and the like.

Description

technical field [0001] The invention relates to a water treatment preparation, in particular to a water treatment agent with good effect on removing volatile phenol in water and a preparation method thereof, belonging to the field of water treatment. Background technique [0002] In recent years, the unique properties and structure of magnetic chitosan microspheres have attracted widespread attention, especially in the application research of water treatment, which has achieved good results. 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. Wong and G. Mckay et al. [22-23] Chitosan has done a detailed study on the treatment of printing and dyeing wastewater. The results show that chitosan has a high affinity for many types of dyes, including disperse, direct, reactive, acidic, sulfur and nafto dyes. Basic dyes hav...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/26B01J20/30C02F1/28C02F1/58C02F1/62
Inventor 夏红霞朱启红丁武泉
Owner CHONGQING UNIV OF ARTS & SCI