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Removal of bacteria from drinking water via filtration

A kind of use, biocidal technology, applied in the direction of filtration separation, cartridge filter, application, etc., can solve the problems of metal binding ability reduction, no biocidal, etc., and achieve the effect of improving affinity and ability

Pending Publication Date: 2020-05-29
因思特艾克申有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the materials disclosed in these publications have little biocidal effect
This is particularly evident in the formation of biofilms on the surfaces of these materials, which on the one hand lead to a reduction in the metal binding capacity and on the other hand are only conditionally suitable for the removal of biological impurities

Method used

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  • Removal of bacteria from drinking water via filtration
  • Removal of bacteria from drinking water via filtration
  • Removal of bacteria from drinking water via filtration

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0067] Example 1: Preparation of porous particles of crosslinked polymers according to the invention:

[0068] Preparation of polymer adsorbates

[0069] Inhale 800 g of carrier material (Grace Silicone SP542-12110) directly into Laudiji VT5. Temper the silica gel to 10 °C. The mixer was run at 120 rpm. Then 1133 g of polymer solution PC 16012 (polymer content 12%) cooled to 10° C. was weighed into a container and mixed with 27.5 g of EGDGE (ethylene glycol diglycidyl ether). The mixture was added to the mixer within 2 minutes and mixed for 1 hour at 10°C. Subsequently, the polymer adsorbate was dried at 80° C. and 50 mbar (approximately 2 hours). Then, the polymer adsorbate was cooled to 10°C.

[0070] For the second coating, 733 g of polymer solution PC16012 (polymer content 12%) cooled to 10° C. was weighed into a container and mixed with 18 g of EGDGE (ethylene glycol diglycidyl ether). The polymer solution was loaded into the mixing cylinder within 2 minutes. The...

Embodiment 2

[0081] Example 2: Metal Purification with Simultaneous Bacteria Removal

[0082] Attempts at the purification of metals according to WO 2017 / 089523 and WO 2016 / 030021 were carried out using adsorbents according to the prior art as well as the adsorbents prepared above, where the solutions used were additionally infected with Escherichia coli, Enterococcus faecalis, Pseudomonas aeruginosa Bacterial strains of Bacillus and Staphylococcus. For metal purification, shows the same performance as uncontaminated solution. However, after purification, bacteria were no longer detected in the purified solution. There was also no biofilm formation. However, traditionally prepared material showed biofilm formation after filtration and still showed high numbers of bacterial strains. Furthermore, the capacity of conventional materials is significantly lost due to biofilm formation.

[0083] Application example (A):

[0084] Example A1: Removal of Escherichia coli (E.coli) from drinking ...

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Abstract

The present invention relates to a method for producing biocidal, porous particles of a cross-linked polymer, and to the porous particles that can be produced according to the method of the invention.The invention further relates to porous particles of an amino-group-containing polymer (polyamine) having a relatively low swelling factor. The porous particles according to the invention are used toremove biological contaminants from water and to bind metal-containing ions from solutions. The present invention further relates to a filter cartridge which contains the porous cross-linked polymerparticles according to the invention.

Description

technical field [0001] The present invention relates to a method of preparing biocidal porous particles from cross-linked polymers, and the porous particles themselves which can be prepared according to the method described in the present invention. Furthermore, the present invention also relates to porous particles from amino group-containing polymers (polyamines) having a relatively low swelling factor. The porous particles described in this invention are useful for removing biological impurities from water and for binding metal-containing ions from solution. The present invention also relates to a filter cartridge comprising the porous particles from crosslinked polymers described herein. Background technique [0002] Biological contamination of drinking water is a known problem, especially in regions where the Earth is warmer. Wells are also contaminated with bacteria and germs after natural disasters. Usually, the pollution is eliminated by the addition of hypochloro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01N33/02A01N61/00B01D39/04B01D27/00B01J20/26C02F1/00C02F1/28C02F1/58
CPCB01J20/26C02F1/288C02F1/50A01N33/02A01N61/00B01D39/04B01J20/267C02F1/285B01J20/3057B01J2220/62B01J20/28011A01N25/34B01J20/28016B01J20/28054C02F2303/04B01J20/3282
Inventor M·韦尔特C·迈耶K·隆格菲尔
Owner 因思特艾克申有限公司