A kind of environmental protection flocculant that reduces COD and its preparation method and application
A flocculant, environmental protection technology, applied in the field of COD reduction environmental protection flocculant and its preparation, can solve the hazards of the operator and the surrounding environment, non-biodegradable, paint can not be handled well, etc., to achieve paint slag Improved water content, good biodegradability, and reduced secondary pollution
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0021] Weigh 320g of deionized water and add it to the Erlenmeyer flask, heat to 80°C and stir, then add 20g of cationic starch (the cationic starch is a quaternary ammonium starch ether and the degree of substitution is 0.07) and stir, at a speed of 400r / min Stir for one hour, after it fully dissolves, add 12g glacial acetic acid and 12g chitosan (this chitosan molecular weight is 600,000 and deacetylation degree is 87.3%) to stir in Erlenmeyer flask again, stirs one hour, wait for its After fully dissolving, add 20g of sodium chloride, 20g of sepiolite and 4g of organically modified rectorite (specifically KH550 organically modified rectorite) in the Erlenmeyer flask to fully stir, and then cool to room temperature after stirring for 3 hours That is to say, an environment-friendly flocculant for reducing COD can be obtained. The COD removal rate of the circulating water in the painting workshop can reach 90%, and the paint slag has a large agglomerate and a low water content ...
Embodiment 2
[0023] Weigh 330g of deionized water and add it to the Erlenmeyer flask, heat to 80°C and stir, then add 20g of cationic starch (quaternary ammonium starch ether and the degree of substitution is 0.07) and stir, and stir for one hour at a speed of 400r / min. After it is fully dissolved, add 12g glacial acetic acid and 12g chitosan (molecular weight is 600,000 and the degree of deacetylation is 87.3%) to stir in Erlenmeyer flask again, stir one hour, after it fully dissolves, add again to Erlenmeyer flask Add 12g of sodium chloride, 12g of sepiolite and 2g of KH550 organically modified rectorite to the mixture and stir thoroughly. After stirring for 3 hours, cool down to room temperature to obtain an environmentally friendly flocculant that reduces COD. This environmentally friendly flocculant is beneficial to the coating workshop The COD removal rate of the circulating water can reach 87%, and the paint slag has a large agglomerate and the water content of the paint slag is low....
Embodiment 3
[0025] Weigh 340g of deionized water and add it to the Erlenmeyer flask, heat to 80°C and stir, then add 16g of cationic starch (quaternary ammonium starch ether and the degree of substitution is 0.07) and stir, and stir for one hour at a speed of 400r / min. After it is fully dissolved, add 10g glacial acetic acid and 10g chitosan (molecular weight is 600,000 and the degree of deacetylation is 87.3%) to stir in Erlenmeyer flask again, stir one hour, after it fully dissolves, add again to Erlenmeyer flask Add 10g of sodium chloride, 10g of sepiolite and 4g of KH550 organically modified rectorite to the mixture and stir thoroughly. After stirring for 3 hours, cool down to room temperature to obtain an environmentally friendly flocculant that reduces COD. This environmentally friendly flocculant is beneficial to the coating workshop The COD removal rate of the circulating water can reach 86%, and the paint slag has a large agglomerate and the water content of the paint slag is low....
PUM
Property | Measurement | Unit |
---|---|---|
degree of substitution | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com