Water filter materials comprising a mixture of microporous and mesoporous carbon particles and water filters with said filter materials

A filter material and filter technology, applied in the direction of filtration and separation, alkali metal compounds, adsorption water/sewage treatment, etc., can solve problems such as multi-space and expensive

Active Publication Date: 2008-04-09
PUR WATER PURIFICATION PRODUCTS INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Multi-stage and multi-filters generally require more space and are more expensive than simple filters

Method used

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  • Water filter materials comprising a mixture of microporous and mesoporous carbon particles and water filters with said filter materials

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0131] Filters containing microporous and mesoporous activated carbon particles

[0132] About 5.5 g of microporous coconut shell carbon supplied by Barnebey Sutcliffe was mixed with 13.0 g of Nuchar® from MeadWestvaco Corp. (Covington, VA).  RGC mesoporous alkaline activated carbon powder (D V，0.5 equal to about 45 μm) and then mixed with about 7 g of Microthene from Equistar Chemicals, Inc. (Cincinnati, OH)  Low density polyethylene (LDPE) FN510-00 binder and about 2 g of Alusil from Selecto, Inc. (Norcross, GA)  70 Aluminosilicate powder mix. Prior to mixing, the mesoporous activated carbon particles were coated with polydiallyldimethylammonium chloride (polyDADMAC), and the coating was dried. The mixed powder was then poured into a circular aluminum mold having an inner diameter of about 7.62 cm (about 3 inches) and a depth of about 1.27 cm (about 0.5 in.). The mold was closed and placed in a thermoformer with a platen at 204°C for 1 hour. The mold was then allow...

Embodiment 2

[0134] Filters containing microporous and mesoporous activated carbon particles

[0135] Approximately 13.0 g of microporous coconut shell carbon supplied by Barnebey Sutcliffe and 13.0 g of mesoporous alkaline activated carbon powder (D V，0.5 equal to about 92 μm) and then mixed with about 7 g of Microthene from Equistar Chemicals, Inc. (Cincinnati, OH)  Low density polyethylene (LDPE) FN510-00 binder and about 2 g of Alusil from Selecto, Inc. (Norcross, GA)  70 Aluminosilicate powder mix. Prior to mixing, the mesoporous activated carbon particles were coated with polydiallyldimethylammonium chloride (polyDADMAC), and the coating was dried. The mixed powder was then poured into a circular aluminum mold having an inner diameter of about 7.62 cm (about 3 inches) and a depth of about 1.27 cm (about 0.5 inches). The mold was closed and placed in a thermoformer with a platen at 204°C for 1 hour. The mold was then allowed to cool to room temperature, opened, and the axial f...

Embodiment 3

[0137] Removal of TTHM, viruses and bacteria by filters containing microporous and mesoporous activated carbon particles

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Abstract

A filter and filter material for providing or treating potable water is provided. The filter includes a housing having an inlet and an outlet, a filter material disposed within the housing, the filter material formed at least in part from a mixture of a plurality of mesoporous and microporous activated carbon particles. Preferably, at least some of the mesoporous activated carbon filter particles are coated with a cationic polymer, and even more preferably, at least some of the particles are coated with a cationic polymer and silver or a silver containing material. Kits comprising filters and information relating to the reduction, killing or removal of bacteria, viruses, microbials, and TTHM are also provided.

Description

field of invention [0001] The present invention relates to the field of water filtration materials and water filters and methods of their use. More particularly, the present invention relates to the field of water filters comprising microporous and mesoporous activated carbon particles. Background of the invention [0002] Water can contain many different types of pollutants. Such contaminants include, for example, particulates, harmful chemicals, and microbial organisms such as bacteria, parasites, protozoa, and viruses. In many cases, these contaminants must be removed before the water can be used. For example, highly pure water is required in many medical applications and in the manufacture of certain electronic components. As a more common example, harmful contaminants in water must be removed, or reduced to a harmless level, or deactivated (sometimes referred to as "killing") before the water is potable (ie, suitable for drinking). Despite modern methods of water pu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/20B01J20/28C02F1/28B01D39/20
Inventor 让尼娜·丽贝卡·巴赫安德鲁·托马斯·皮尔克斯吉列尔莫·马蒂亚斯·维达尔季米特里斯·扬尼斯·科利亚斯迈克尔·多诺万·米切尔罗伯特·E·阿瑟尔凯瑟琳·L·K·费依罗伯特·安德鲁·戈韦尔纳托马斯·J·哈姆林丽贝卡·A·卢赫特赫曼·帕特尔
Owner PUR WATER PURIFICATION PRODUCTS INC
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