Preparation method of flocculant containing potassium monopersulfate composite salt as well as product and application of flocculant

A technology of potassium hydrogen peroxymonosulfate compound salt and potassium hydrogen sulfate is applied in the field of preparation containing potassium hydrogen peroxymonosulfate compound salt, and can solve the problems of seizing the growth space of water body organisms, increasing the cost of water treatment, consuming dissolved oxygen in water, and the like, Achieve the effect of improving the effect of sediment, greening and environmental protection of the process route, and strengthening the fiber-forming and film-forming ability.

Inactive Publication Date: 2021-03-23
SHANGHAI NAT ENG RES CENT FORNANOTECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Inorganic flocculants are cheap, but they will have adverse effects on human health and the ecological environment; although organic polymer flocculants are used in a small amount, the scum output is small, the flocculation ability is strong, the flocs are easy to separate, and the effect of removing oil and suspended matter is good , but the residual monomers of this type of polymer have "three-caused" effects (teratogenic, carcinogenic, mutagenic), thus limiting its application range
[0004] Affected by human activities, elements such as nitrogen and phosphorus are continuously discharged into the water body, making the water body eutrophic. The algae plants and plankton in the water continue to multiply, destroying the food chain and breaking the ecological balance. Cyanobacteria are ancient creatures in the dinosaur era. Under appropriate temperature and nutrient conditions, large-scale reproduction will seize the growth space of water organisms, consume dissolved oxygen in water, and release algae toxins, which will also endanger human health and increase water treatment costs.

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

[0030] A kind of flocculant containing potassium peroxodisulfate compound salt, potassium peroxodisulfate hydrolysis makes potassium peroxodisulfate compound salt, and its pH is neutral after being dissolved in water, and is prepared according to the following steps:

[0031] (1) Weigh 390g of potassium peroxodisulfate into a clean four-necked flask, add 1170g of deionized water, turn on the mechanical stirring for about 5 minutes and basically dissolve, add 2.5 g of high-efficiency loaded nano-catalyst;

[0032] (2) Turn on the water bath to control the internal temperature of the flask at 45°C, and keep it warm for 10 hours;

[0033] (3) Detect that the active oxygen of potassium persulfate monomer in the flask reaches more than 1.5%, filter to remove the catalyst, add 5g of stabilizer sodium tripolyphosphate; slowly add 98g of potassium bisulfate and stir to mix, then add 88g of 50% hydroxide Neutralize the potassium solution, stir and keep warm for 30 minutes after feeding...

Embodiment 2

[0037] A kind of flocculant containing potassium monopersulfate compound salt, similar to embodiment, is prepared according to the following steps:

[0038] (1) Weigh 326 g of potassium peroxodisulfate into a cleaned four-necked flask, add 1234 g of deionized water, turn on the mechanical stirring for about 5 minutes and basically dissolve it, and add 2 g of highly efficient loaded nano-catalyst;

[0039] (2) Turn on the water bath to control the internal temperature of the flask at 30 °C, and keep it warm for 16 hours;

[0040] (3) Detect that the monomer active oxygen of potassium persulfate in the flask reaches 1.23%, remove the catalyst by filtration, and add 3g of stabilizer potassium tripolyphosphate. Slowly add 89 g of potassium bisulfate, stir and mix, then add 76 g of 40% potassium hydroxide solution to neutralize, the temperature is controlled at about 40 °C, after the addition is completed, keep it under stirring state for 30 min, rotate to concentrate, and then coo...

Embodiment 3

[0043] A kind of flocculant containing potassium monopersulfate compound salt, similar to embodiment, is prepared according to the following steps:

[0044](1) Weigh 370 g of potassium peroxodisulfate into a cleaned four-necked flask, add 1110 g of deionized water, turn on the mechanical stirring for about 5 minutes and basically dissolve, add 4 g of highly efficient nano-catalysts;

[0045] (2) Turn on the water bath to control the internal temperature of the flask at 40 °C, and keep it warm for 8 hours;

[0046] (3) It was detected that the monomeric active oxygen of potassium persulfate in the flask reached 1.63%, the catalyst was removed by filtration, and 2.6 g of stabilizer potassium tripolyphosphate was added. Slowly add 116 g of potassium bisulfate, stir and mix, then add 109 g of 50% potassium hydroxide solution for neutralization, control the temperature at about 35 °C, keep stirring for 30 min after the addition is complete, rotate to concentrate, and then cool to a...

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 preparation method of a flocculant containing potassium monopersulfate composite salt as well as a product and an application of the flocculant. The potassium monopersulfate composite salt is prepared by hydrolyzing potassium persulfate, is mild in property, has neutral pH after being dissolved in water, and has good sterilization and water body improvement effects. Afterbeing compounded with a traditional flocculant, the flocculant contains a special biomass flocculant, is mainly used for chelating heavy metal ions and activated sludge, has unique biological activity, biodegradability, biocompatibility, good adhesiveness, relatively strong fiber-forming and film-forming capabilities, special adsorption performance and the like, and has important application in the aspect of water treatment.

Description

technical field [0001] The invention relates to a preparation method of a flocculant, in particular to a preparation method containing potassium monopersulfate compound salt and its product and application. Background technique [0002] According to its chemical composition, flocculants can be generally divided into two types: inorganic flocculants and organic flocculants. Inorganic flocculants include inorganic coagulants and inorganic polymer flocculants; organic flocculants include synthetic organic polymer flocculants, natural organic polymer flocculants and microbial flocculants. The flocculant is mainly a group with positive (negative) charge and some particles or particles with negative (positive) charge in water that are difficult to separate, close to each other, reduce its potential, make it in an unstable state, and use its The aggregated nature allows these particles to be concentrated and separated by physical or chemical means. [0003] Flocculants are mainly...

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): C02F1/52C02F1/56C02F1/50C02F1/62C02F1/28
CPCC02F1/5236C02F1/5245C02F1/56C02F1/50C02F1/62C02F1/288
Inventor 崔大祥朱正林琳邬淑红吴晓燕
Owner SHANGHAI NAT ENG RES CENT FORNANOTECH
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