Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Preparation method and application of flocculant for water treatment

A flocculant and water body technology, which is applied in water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve the problems of high production cost of titanium salt flocculants and the inability to use them in large quantities in production and life, and achieve Easy to quantify production, excellent coagulation performance, simple and quick preparation

Pending Publication Date: 2021-11-05
中科智感(南京)环境科技有限公司 +1
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] At present, the production cost of titanium salt flocculants is relatively high and cannot be widely used in production and life. Therefore, a production method that is both efficient and can reduce costs is very important

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
  • Preparation method and application of flocculant for water treatment
  • Preparation method and application of flocculant for water treatment
  • Preparation method and application of flocculant for water treatment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Preparation of composite flocculant: first prepare titanium tetrachloride solution, ethanol and acetylacetone mixed solution, take 1kg of titanium tetrachloride with a solution volume ratio of 99%, 1.6kg of ethanol with a solution volume ratio of 95%; the solution volume ratio is 99.5 % acetic acid 0.09kg, stirred at a rate of 500rpm / min for 30min to obtain a mixed solution A. Get solution volume ratio and be 95% ethanol 1kg, sepiolite 0.1kg, resistivity 18.25MΩ deionized water 0.5kg, solution volume ratio is 99.5% acetic acid or solution volume ratio 36%-38% hydrochloric acid 0.2kg , mix ethanol, sepiolite, deionized water, and acetic acid evenly to obtain a mixed solution B. Mixed solution B was dropped into mixed solution A, and then stirred at a rate of 500 rpm / min for 90 min to obtain mixed solution C. Dry the mixed solution C at 70-80°C to constant weight to obtain the natural clay composite flocculant, namely TXC-SE.

[0035] The product of titanium tetrachlori...

Embodiment 2

[0039] (1) Preparation of simulated experiment water sample: the humic acid-kaolin mixed water sample was used as the simulated water sample for the experiment, and was prepared according to the following method: First, weigh 1 g of humic acid, set the volume to 1 L, and configure the concentration to be 1g / l humic acid stock solution. Accurately weigh 5g of kaolin, add appropriate amount of deionized water and 50ml of humic acid stock solution in sequence, and dilute to 1L to obtain humic acid-kaolin simulated water sample. The initial water quality indicators of the simulated water samples are as follows: turbidity=40±0.5NTU, UV254=0.2±0.01cm-1, pH=7.85-8.24.

[0040] (2) Flocculation experiment procedure: put six beakers containing 1L of experimental water samples on the stirrer, add a known amount of flocculant, stir rapidly at 250rpm / min for 5min; then change the stirring speed to 50rpm / min, After continuing to stir for 15 minutes, let stand for 30 minutes. Samples were...

experiment example 2

[0045] Experimental example 2 result analysis:

[0046] Adopt turbidimeter, ultraviolet spectrophotometer and portable hand-held pH meter to detect the various indicators of the water sample after adding different flocculant treatment in embodiment 2, the flocculation effect sees image 3 , Figure 4 and Figure 5 shown.

[0047] Depend on image 3 , Figure 4 and Figure 5 It can be seen that under the same dosage of flocculant, the composite flocculant prepared according to the method of the present application has the best effect of removing turbidity and reducing organic matter, and the pH value of the effluent is stable. The removal rate of turbidity is as high as 98.52%, and the removal rate of UV254 is as high as 100%.

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

PropertyMeasurementUnit
clearance rateaaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method and application of a flocculant for water treatment. Raw materials such as titanium tetrachloride, ethanol, acetylacetone, sepiolite, deionized water and acetic acid or hydrochloric acid are blended to obtain a mixed solution A and a mixed solution B according to respective formulas; the obtained mixed solution B is dropwise added into the mixed solution A at a dropwise adding rate of 1 mL / min, and stirring is conducted at a rate of 500 rpm / min to obtain a mixed solution C; and the mixed solution C is dried until the weight does not change any more to obtain the composite flocculant. The flocculant has good turbidity removal and pollutant reduction effects in flocculation treatment of a water body, and can realize rapid destabilization and coagulation of suspended solids in the water body and improve the transparency of the water body. The flocculant can be widely applied to turbidity removal and pollutant removal in feed water and wastewater, and is simple and rapid to prepare, good in repeatability, easy to produce in a quantitative manner, excellent in coagulation performance, low in residual metal content and good in precipitation performance.

Description

technical field [0001] The invention relates to a preparation method and application of a flocculant for water body treatment, belonging to the technical field of water treatment. Background technique [0002] With the rapid development of my country's economy, the rate of urbanization continues to accelerate, resulting in a significant increase in production and domestic water consumption, and the discharge of industrial wastewater and domestic sewage is increasing. Due to the imperfect sewage treatment facilities, a large amount of untreated sewage is discharged into the surrounding water bodies, resulting in the deterioration of the water quality of rivers and lakes, and a large number of water environmental problems, such as: the generation of black and odorous water bodies, the outbreak of blue-green algae blooms, etc. Among them, flocculation is a commonly used technology in water treatment and restoration. Flocculation is to put flocculants into water, and use its col...

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): C02F1/52
CPCC02F1/5236
Inventor 马欣丁士明王燕
Owner 中科智感(南京)环境科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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