Chemical agent for removing antimony in printing and dyeing wastewater and removal method of antimony

A technology for printing and dyeing wastewater and pharmaceuticals, applied in chemical instruments and methods, textile industry wastewater treatment, water/sewage treatment, etc., to achieve the effects of uniform particle dispersion, short reaction time, and easy application and promotion

Active Publication Date: 2019-01-01
UNIV OF SHANGHAI FOR SCI & TECH
View PDF13 Cites 5 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the previous neglect of the monitoring and prevention of antimony pollution in printing and dyeing wastewater, and the traditional wastewater treatment system did not pay attention to the research on antimony removal technology, it is difficult to effectively remove antimony due to the increasing antimony discharge standards in the printing and dyeing industry and the backward traditional wastewater treatment methods. This situation constitutes an increasingly prominent contradiction

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
  • Chemical agent for removing antimony in printing and dyeing wastewater and removal method of antimony

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The printing and dyeing wastewater comes from the comprehensive wastewater of a printing and dyeing factory, and the concentration of T-Sb is 1080 μg L -1 , the concentration of CODCr is 1091mg·L -1 , the pH of the water is around 10.1. First, the printing and dyeing wastewater is pretreated, and the impurity components in the printing and dyeing wastewater are filtered out by sedimentation to prevent interference with subsequent experimental results.

[0030] MnO x / SiO 2 / FeSO 4 The preparation of the mixed system matching agent material: the raw material is selected from the iron and manganese tailings of a manganese mining enterprise in Hunan, and the effective component in the tailings is MnO x , after grinding, the particles with uniform particle size are screened out as the components of the medicine, and the MnO x / SiO 2 / FeSO 4 The mass ratio is 1:1:8.

[0031] Such as figure 1As shown, in step 1, the printing and dyeing wastewater is firstly flowed in...

Embodiment 2

[0036] The printing and dyeing wastewater comes from the comprehensive wastewater of a printing and dyeing factory, and the concentration of T-Sb is 1080 μg L -1 , the concentration of CODCr is 1091mg·L -1 , the pH of the water is around 10.1. First, the printing and dyeing wastewater is pretreated, and the impurity components in the printing and dyeing wastewater are filtered out by sedimentation to prevent interference with subsequent experimental results.

[0037] MnO x / SiO 2 / FeSO 4 The preparation of the mixed system matching agent material: the raw material is selected from the iron and manganese tailings of a manganese mining enterprise in Hunan, and the effective component in the tailings is MnO x , after grinding, the particles with uniform particle size are screened out as the components of the medicine, and the MnO x / SiO 2 / FeSO 4 The mass ratio is 1:1:8.

[0038] Such as figure 1 As shown, in step 1, the printing and dyeing wastewater is firstly flowed i...

Embodiment 3

[0043] The printing and dyeing wastewater comes from the comprehensive wastewater of a printing and dyeing factory, and the concentration of T-Sb is 1080 μg L -1 , the concentration of CODCr is 1091mg·L -1 , the pH of the water is around 10.1. First, the printing and dyeing wastewater is pretreated, and the impurity components in the printing and dyeing wastewater are filtered out by sedimentation to prevent interference with subsequent experimental results.

[0044] MnO x / SiO 2 / FeSO 4 The preparation of the mixed system matching agent material: the raw material is selected from the iron and manganese tailings of a manganese mining enterprise in Hunan, and the effective component in the tailings is MnO x , after grinding, the particles with uniform particle size are screened out as the components of the medicine, and the MnO x / SiO 2 / FeSO 4 The mass ratio is 1:1:8.

[0045] Such as figure 1 As shown, in step 1, the printing and dyeing wastewater is first flowed int...

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

No PUM Login to view more

Abstract

The invention discloses a chemical agent for removing antimony in printing and dyeing wastewater and a removal method of the antimony. The chemical agent comprises a mixture composed of manganese tailing powder and FeSO4, wherein the mixture is solid powder; a main component of the manganese tailing powder is MnOx / SiO2, the grain diameter is 0.075 to 0.100mm and the mass ratio of MnOx / SiO2 / FeSO4 ranges from (1 to 1 to 1) to (1 to 1 to 8); FeSO4 is FeSO4.7H2O, FeSO4.3H2O or anhydrous ferrous sulfate; the removal method comprises the following steps: step 1, putting antimony-containing printingand dyeing wastewater into a pre-treatment tank and carrying out impurity removal pre-treatment, so as to obtain pre-treated antimony-containing printing and dyeing wastewater; step 2, putting the pre-treated antimony-containing printing and dyeing wastewater into a reaction contact tank and adding a certain amount of the chemical agent and contacting and stirring; after reacting for 30 to 60min,thus obtaining reacted antimony-containing printing and dyeing wastewater; step 3, putting the reacted antimony-containing printing and dyeing wastewater into a coagulation precipitation tank, and standing and precipitating; then carrying out solid-liquid separation to remove heavy metal antimony in the printing and dyeing wastewater.

Description

technical field [0001] The invention belongs to the field of wastewater treatment, and in particular relates to a medicament for removing antimony in printing and dyeing wastewater and a removal method thereof. Background technique [0002] The printing and dyeing industry is one of the basic industries for the development of the national economy. It has grown rapidly since the reform and opening up. my country's printing and dyeing industry has now become the world's largest in scale. However, the printing and dyeing industry consumes a lot of water and the sewage is serious. The printing and dyeing wastewater produced contains a large number of stable and complex chemical substances, such as: dyes, auxiliaries, heavy metals, etc., which pose a huge threat to my country's water environment and become an important part of industrial wastewater treatment. big problem. [0003] Metal antimony (Antimony, Sb) has become a new challenge in the pollution prevention and control of ...

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 Applications(China)
IPC IPC(8): C02F1/52C02F1/62C02F103/30
CPCC02F1/5236C02F1/62C02F2103/30
Inventor 刘洪波薛璐璐陈子华符策竿管祥雄陈琳琳牛璐遥李丛宇吕奕成
Owner UNIV OF SHANGHAI FOR SCI & TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap