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Filters Comprising An Activated Carbon Particle Coated With pDADMAC And Methods Of Making Same

A technology of activated carbon particles and filters, applied in membrane filters, chemical instruments and methods, separation methods, etc., can solve the problems of unsuitable filters and inability to achieve removal performance

Active Publication Date: 2015-04-15
HELEN OF TROY LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although filtered in some industrial / municipal water treatment systems, these filters may not be suitable and / or achieve suitable or required removal performance for use in consumer friendly water filtration applications such as household and personal Use filter applications, and / or produce potable water

Method used

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  • Filters Comprising An Activated Carbon Particle Coated With pDADMAC And Methods Of Making Same
  • Filters Comprising An Activated Carbon Particle Coated With pDADMAC And Methods Of Making Same
  • Filters Comprising An Activated Carbon Particle Coated With pDADMAC And Methods Of Making Same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] The experimental method described below targets the coating of a 2.0 wt% FL4440(pDADMAC) solution on RGC granular activated carbon, assuming a polymer solids concentration of approximately 36% within the original FL 4440(pDADMAC) solution.

[0039] Table 2

[0040] Target coating wt%

Mass of FL 4440 (kg)

Water mass (kg)

Mass of RGC (kg)

1.0

0.55

19.45

20.00

1.5

0.84

19.16

20.00

2.5

1.39

18.61

20.00

3.0

1.67

18.33

20.00

[0041]Materials were added to separate containers: 18.9 kg USP water and 1.1 kg Floquat FL4440 were added to a mixing tank and 20.0 kg RGC granular activated carbon was added to a Littleford FM-130D pear chip mixer. The polymer solution was mixed for 5 minutes, then pressurized to 20-25 psi, and the polymer solution was delivered through a single SUE15 two-fluid atomizing nozzle (which used 60-90 psi of air) into the FM...

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Abstract

Embodiments of systems and methods for producing a coated activated carbon comprise the steps of providing activated carbon particles having a particle size up to about 100 μm, and coating the activated carbon particles by spraying droplets of a cationic polymer solution onto the surface of the activated carbon particles, wherein the cationic polymer solution comprises about 1% to about 15% by weight cationic polymer and the droplet size is between about 5 μm to about 100 μm.

Description

technical field [0001] The present invention relates generally to water filters and methods of producing potable water, and in particular to water filters containing activated carbon with a polymer coating, and methods of making the same. Background technique [0002] Fluid contaminants, especially in water, can include various elements and combinations such as heavy metals (e.g., lead), microorganisms (e.g., bacteria, viruses), acids (e.g., humic acids) or Any pollutant listed in No.53. As used herein, the terms "microorganism", "microbial organism", "microbial agent" and "pathogen" are used interchangeably. These terms are used herein to refer to various types of microorganisms, which can be characterized as bacterial, viral, parasitic, protozoan, and pathogenic microorganisms. In each case, these contaminants listed above must be removed before the water can be used. For example, in many medical applications and in the manufacture of some electronic components, extreme...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J20/20B01J20/26B01J20/32C02F1/28B01D39/20C02F1/62
CPCB01J2220/56B01J20/20B01J20/3204C02F1/283B01D2239/10B01D2239/1241B01J20/2803C02F1/285C02F1/288B01J20/3085B01J20/3272B01D39/2058B01J20/28073B01J20/28004B01D2239/0485B01J20/3276B01J20/261B01J20/3028B01D39/20B01J20/205C02F1/62C01B32/342
Inventor A·T·皮克斯A·I·翁翁耶M·D·米歇尔D·I·克里亚斯D·W·比约尔奎斯特P·W·彼尔斯
Owner HELEN OF TROY LTD