Unlock instant, AI-driven research and patent intelligence for your innovation.

A kind of adsorbent for treating cationic dye wastewater and its preparation method and application

A cationic dye and adsorbent technology, applied in chemical instruments and methods, adsorbed water/sewage treatment, other chemical processes, etc., can solve the problems of low adsorption efficiency of dye wastewater, complex preparation process, unfavorable promotion, etc., and achieve optimal treatment The effect, the production process is simple, the effect of the excellent effect

Inactive Publication Date: 2018-02-16
GUANGDONG UNIV OF EDUCATION
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing adsorbents need to go through a complex preparation process and lengthy chemical modification of various raw materials, and the adsorption efficiency for dye wastewater is not high, and the preparation process is complicated and costly, which is not conducive to popularization.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A kind of adsorbent for treating cationic dye wastewater and its preparation method and application
  • A kind of adsorbent for treating cationic dye wastewater and its preparation method and application
  • A kind of adsorbent for treating cationic dye wastewater and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] An adsorbent for treating cationic dye wastewater, the adsorbent is a hybrid adsorbent prepared after a hybrid reaction between Congo red and calcium fluoride, and the hybrid adsorbent is made of the following raw materials in molar mass fractions :

[0049] Congo red 0.05 parts

[0050] Calcium chloride 0.5 parts

[0051] Sodium fluoride 1.25 parts.

[0052] A preparation method for an adsorbent for treating cationic dye wastewater, comprising the steps of: weighing 0.05 parts of Congo red, 0.5 parts of calcium chloride, and 1.25 parts of sodium fluoride in distilled water, Under the condition of magnetic stirring, prepare Congo red solution, calcium chloride solution and sodium fluoride solution. According to the order of adding reactants, add Congo red solution, sodium fluoride solution and calcium chloride solution to the beaker successively, and react for 15 minutes. . Settling naturally for 20-24 hours, removing the supernatant, washing with distilled water 2-...

Embodiment 2

[0055] An adsorbent for treating cationic dye wastewater, the adsorbent includes a hybrid adsorbent prepared after a hybrid reaction between Congo red and calcium fluoride, and the hybrid adsorbent is made of the following raw materials in molar mass fractions :

[0056] Congo red 0.05 parts

[0057] Calcium chloride 0.8 parts

[0058] Sodium fluoride 2.5 parts.

[0059] The adsorbent also includes ferric oxide, and the molar mass ratio of the hybrid adsorbent to ferric oxide is 2:1.

[0060] A preparation method for an adsorbent for treating cationic dye wastewater, comprising the following steps:

[0061] Step 1: Preparation of hybrid adsorbent: Weigh 0.05 parts of Congo red, 0.8 parts of calcium chloride, and 2.5 parts of sodium fluoride in molar mass fractions, dissolve them in distilled water respectively, and prepare Congo red solution, calcium chloride solution and sodium fluoride solution, according to the order of adding reactants, add Congo red solution, sodium f...

Embodiment 3

[0066] An adsorbent for treating cationic dye wastewater, the adsorbent includes a hybrid adsorbent prepared after a hybrid reaction between Congo red and calcium fluoride, and the hybrid adsorbent is made of the following raw materials in molar mass fractions :

[0067] Congo red 0.052 parts

[0068] Calcium chloride 1 part

[0069] Sodium fluoride 2.5 parts.

[0070] The adsorbent also includes ferric oxide, and the molar mass ratio of the hybrid adsorbent to ferric oxide is 8:1.

[0071] A preparation method for an adsorbent for treating cationic dye wastewater, comprising the following steps:

[0072] Step 1: Preparation of hybrid adsorbent: Weigh 0.052 parts of Congo red, 1 part of calcium chloride, and 2.5 parts of sodium fluoride in molar mass fractions, dissolve them in distilled water respectively, and prepare Congo red solution, calcium chloride solution and sodium fluoride solution, according to the order of adding reactants, add Congo red solution, sodium fluor...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
adsorption capacityaaaaaaaaaa
adsorption capacityaaaaaaaaaa
Login to View More

Abstract

The invention belongs to the technical field of wastewater treatment, and in particular relates to an adsorbent for treating cationic dye wastewater and its preparation method and application. The adsorbent includes a hybrid adsorbent prepared after a hybrid reaction between Congo red and calcium fluoride. The hybrid adsorbent is made of the following raw materials in molar mass fractions: 0.05-0.10 parts of Congo red, 0.5-8 parts of calcium chloride, 1.25-25 parts of sodium fluoride, and the adsorbent also includes four Ferric oxide, the molar mass ratio of the hybrid adsorbent to ferric oxide is 2-10:1. The invention utilizes organic dye ligand Congo red and inorganic framework material CaF2 to carry out hybridization reaction to prepare a hybrid adsorbent, which is blended with ferric oxide to prepare an environmentally friendly hybrid adsorbent, which has low cost and high production process. It is simple, and the traditional adsorption method is used to adsorb cationic dye wastewater. The prepared hybrid material is green and environmentally friendly, in line with sustainable development, and can achieve the green chemical concept of "using waste to treat waste".

Description

technical field [0001] The invention belongs to the technical field of wastewater treatment, and in particular relates to an adsorbent for treating cationic dye wastewater, a preparation method and application thereof. Background technique [0002] With the rapid development of industrial technology, the types and numbers of dyes are increasing continuously. According to statistics, the annual output of dyes in the world is about 800kt-900kt. my country is a major player in the discharge of industrial wastewater. The annual output of dyes is about 150kt, ranking among the top in the world. Dyes have been widely used in printing and dyeing, medicine, cosmetics and food industries. With the rapid development of industry, various new dyes have been put into production and use, and the quality of dye wastewater has become more and more complicated, and the pollution caused by it to the environment has become increasingly serious. According to the different characteristics of dy...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/22B01J20/30C02F1/28
Inventor 赵丹华黄立棉陈爱葵龚玉莲蒋辽川曾碧建钟如达
Owner GUANGDONG UNIV OF EDUCATION