A heavy metal stabilizer with water-reducing and flocculating properties and preparation method thereof
What is Al technical title?
Al technical title is built by PatSnap Al team. It summarizes the technical point description of the patent document.
A heavy metal stabilizer and flocculation technology, applied in the field of environmental engineering, can solve the problems of deviation of treatment effect and large dosage, and achieve the effect of reducing the cost of harmless treatment
Active Publication Date: 2020-03-13
青岛威瑞德环境科技有限公司 +1
View PDF8 Cites 0 Cited by
Summary
Abstract
Description
Claims
Application Information
AI Technical Summary
This helps you quickly interpret patents by identifying the three key elements:
Problems solved by technology
Method used
Benefits of technology
Problems solved by technology
However, this type of stabilizer has the problem of large dosage but deviation in treatment effect during use, and the stabilizing effect on a few heavy metals such as lead and cadmium with high activity still needs to be strengthened urgently
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
Click on the blue label to locate the original text in one second.
Reading with bidirectional positioning of images and text.
Smart Image
Examples
Experimental program
Comparison scheme
Effect test
Embodiment 1
[0020] Stir at 45°C at a speed of 130r / min to dissolve the following components: 25% dithiocarbamate, 15% dithioaminoacetate, 5% ethyl xanthate, allyl alcohol polyoxyethylene Ether 1%, isobutanol polyoxyethylene ether 1.5%, hydroxyethyl acrylate 0.5%, polyacrylamide 0.2%, sodium nitril triacetate 0.15%, sucrose 1.5%, sodium polyacrylate 0.05%, the rest of water, stirring The time is 1 hour, and the heavy metal stabilizer with both water-reducing and flocculating properties is obtained.
Embodiment 2
[0022] Stir at 55°C at a speed of 145r / min to dissolve the following components: 35% dithiocarbamate, 10% dithioaminoacetate, 5% ethyl xanthate, allyl alcohol polyoxyethylene Ether 0.5%, isoamyl alcohol polyoxyethylene ether 0.5%, isobutanol polyoxyethylene ether 0.5%, hydroxyethyl acrylate 0.5%, polyacrylamide 0.1%, sodium nitrilotriacetate 0.05%, sucrose 2.5%, polyacrylic acid Sodium 0.1%, the balance of water, stirring time is 2h, that is, a heavy metal stabilizer with both water reducing and flocculating properties can be obtained.
Embodiment 3
[0024] Stir at 40°C at a speed of 120r / min to dissolve the following components: 28% dithiocarbamate, 5% dithioaminoacetate, 6% ethyl xanthate, isoamyl alcohol polyoxyethylene 0.7% ether, 0.8% isobutanol polyoxyethylene ether, 0.8% hydroxyethyl acrylate, 0.14% polyacrylamide, 0.08% sodium nitril triacetate, 1.7% sucrose, 0.06% sodium polyacrylate, the rest of water, stirring The time is 1.4 hours, and the heavy metal stabilizer with both water-reducing and flocculating properties is obtained.
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
Login to view more
Abstract
The invention discloses a heavy metal stabilizer with a water-reduction property and flocculability and a preparation method thereof. The heavy metal stabilizer comprises the following raw materials of dithiocarbamate, dithio amino-acetate, ethyl xanthate, allyl alcohol polyoxyethylene ether, isoamyl alcohol polyoxyethylene ether, isobutyl alcohol polyoxyethylene ether, hydroxyethyl acrylate, polyacrylamide, sodium ammonium triacetate, saccharose and sodium polyacrylate. The heavy metal stabilizer has the water-reduction property and the flocculability, through the water-reduction and flocculation effects, the dosage of the stabilizer is reduced, and various metal can be simultaneously treated, secondary pollution does not occur to the environment, harmless treatment cost of waste incineration flying ashes can be remarkably reduced, and the usage amount can be reduced above 30 % relative to other organic chelating agents. Apparent color of the heavy metal stabilizer is changed along with changing of the dosage of all components, but the practical effect of the heavy metal stabilizer is not affected.
Description
technical field [0001] The invention relates to the technical field of environmental engineering, in particular to a heavy metal stabilizer with water-reducing and flocculating properties and a preparation method thereof. Background technique [0002] Domestic waste treatment and disposal is one of the important topics in the field of environmental engineering and environmental sanitation. At present, the disposal methods of domestic waste include sanitary landfill, aerobic composting, anaerobic fermentation, pyrolysis, and incineration, among which sanitary landfill is the most common application. The sanitary landfill of domestic waste has the advantages of low cost and simple operation. However, with the sharp increase in the generation of domestic waste, the site selection of landfill and its potential secondary pollution risks have been greatly challenged. The incineration method is a new way to reduce, harmless and recycle domestic waste, and it has been more and more...
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
Application Date:The date an application was filed.
Publication Date:The date a patent or application was officially published.
First Publication Date:The earliest publication date of a patent with the same application number.
Issue Date:Publication date of the patent grant document.
PCT Entry Date:The Entry date of PCT National Phase.
Estimated Expiry Date:The statutory expiry date of a patent right according to the Patent Law, and it is the longest term of protection that the patent right can achieve without the termination of the patent right due to other reasons(Term extension factor has been taken into account ).
Invalid Date:Actual expiry date is based on effective date or publication date of legal transaction data of invalid patent.
Login to view more 
Login to view more