Biological heavy metal adsorbing and flocculating agent and preparation method thereof

A heavy metal and flocculant technology, applied in chemical instruments and methods, adsorption water/sewage treatment, flocculation/sedimentation water/sewage treatment, etc., can solve the problems of soil environmental damage, difficult to remove, heavy metal residues, etc., to protect the soil Environmental, generation and pollution mitigation effects

Inactive Publication Date: 2012-11-07
HAO YUAN TE CONTROL
View PDF1 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The existing heavy metal adsorption flocculants contain various chemical substances and synthetic polymer substances, so when treating wastewater discharged from farmland, rural domestic sewage, urban domestic sewage, industrial wastewater and other sewage, the Heavy metals in the water remain in the water and are difficult to remove. When the treated water is further used to irrigate the farmland, it will cause damage to the soil environment, and when this part of the water is discharged, it will cause damage to rivers and lakes.

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] (1) Backup according to the following components by mass:

[0021] Chitosan 2 parts, citric acid 2 parts,

[0022] 0.8 parts of ethanol, 2 parts of sophorolipids,

[0023] 100 parts of water;

[0024] (2) Take 70 parts of the water prepared in step (1), heat to 80°C, add citric acid and chitosan in turn, and heat to 80°C during stirring, so that the citric acid and chitosan are dissolved and become transparent without particles After incubating for 30 minutes, add ethanol and stir to obtain solution Ⅰ;

[0025] (3) Add sophorolipids to the remaining 30 parts of water in step (1), and heat to 80°C to dissolve the sophorolipids to obtain solution II;

[0026] (4) Combine solution I and solution II in steps (2) and (3), stir well, and cool to 38°C to obtain the biological heavy metal adsorption flocculant.

Embodiment 2

[0028] (1) Backup according to the following components by mass:

[0029] Chitosan 1 part, citric acid 3 parts,

[0030] 0.5 parts of ethanol, 3 parts of sophorolipids,

[0031] 150 parts of water;

[0032] (2) Take 100 parts of water prepared in step (1), heat to 70°C, add citric acid and chitosan in turn, and heat to 82°C during stirring, so that the citric acid and chitosan are dissolved and become transparent without particles After incubating for 32 minutes, add ethanol and stir well to obtain solution Ⅰ;

[0033] (3) Add sophorolipids to the remaining 50 parts of water in step (1), and heat to 82°C to dissolve the sophorolipids to obtain solution II;

[0034] (4) Combine solution I and solution II in steps (2) and (3), stir well, and cool to 40°C to obtain a biological heavy metal adsorption flocculant.

Embodiment 3

[0036] (1) Backup according to the following components by mass:

[0037] 1.5 parts of chitosan, 2.5 parts of citric acid,

[0038] 1 part of ethanol, 1.5 parts of sophorolipids,

[0039] 80 parts of water;

[0040] (2) Take 60 parts of water prepared in step (1) and heat to 60°C, add citric acid and chitosan in turn, and heat to 85°C during the stirring process, so that the citric acid and chitosan are dissolved and become transparent without particles , after 35 minutes of heat preservation, add ethanol and stir to obtain solution I;

[0041] (3) Add sophorolipids to the remaining 20 parts of water in step (1), heat to 85°C to dissolve the sophorolipids, and obtain solution II;

[0042] (4) Combine solution I and solution II in steps (2) and (3), stir well, and cool to 35°C to obtain the biological heavy metal adsorption flocculant.

[0043] Below by comparative test, the excellent effect of the present invention is proved:

[0044] 1) Put 1 liter of cadmium and chromiu...

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 provides a biological heavy metal adsorbing and flocculating agent and a preparation method thereof. The adsorbing and flocculating agent consists of the following components in parts by mass: 1 to 2 parts of chitosan, 2 to 3 parts of citric acid, 0.5 to 1 part of ethanol, 1.5 to 3 parts of sophorolipid, and 80 to 150 parts of water. The biological heavy metal adsorbing and flocculating agent has a remarkable chelating effect on heavy metal substances, and can efficiently adsorb and flocculate the heavy metal substances in sewage in sewage treatment, so that the heavy metal substances are thoroughly separated from the heavy metal substances, the treated water does not damage the soil environment in farmland irrigation and does not destroy water in rivers, lakes and the like in direct discharge, production and pollution of harmful algae can be lightened, and the soil environment and the water environment are effectively protected.

Description

technical field [0001] The invention relates to a biological heavy metal adsorption flocculant and a preparation method thereof, belonging to the technical field of flocculants. Background technique [0002] The existing heavy metal adsorption flocculants contain various chemical substances and synthetic polymer substances, so when treating wastewater discharged from farmland, rural domestic sewage, urban domestic sewage, industrial wastewater and other sewage, the Heavy metals in the water remain in the water and are difficult to remove. When the treated water is further used to irrigate the farmland, it will cause damage to the soil environment, and when this part of the water is discharged, it will cause damage to rivers and lakes. Therefore, it is necessary to develop a method that can efficiently adsorb heavy metals in flocculated sewage in the process of treating wastewater discharged from farmland, rural domestic sewage, urban domestic sewage, industrial wastewater an...

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): B01J20/24B01J20/30C02F1/28C02F1/52C02F1/62C02F101/20
Inventor 黄庆禄罗放明
Owner HAO YUAN TE CONTROL
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