公开(公告)号：US20070075025A1

公开(公告)日：2007-04-05

申请号：US11536918

申请日：2006-09-29

Applicant: Hemang Patel ,  Keith Wesner ,  Thomas Hamlin ,  Robert Governal ,  Guillermo Vidal ,  Dimitris Collias ,  Jeannine Bahm

Inventor： Hemang Patel ,  Keith Wesner ,  Thomas Hamlin ,  Robert Governal ,  Guillermo Vidal ,  Dimitris Collias ,  Jeannine Bahm

IPC: B01D37/00

CPC classification number: C02F1/001 ,  C02F1/004 ,  C02F1/288

Abstract: In one embodiment, the present disclosure provides fail-safe mechanisms for final filters. The fail-safe mechanisms of the present disclosure include a prefilter that is essentially transparent or translucent to TOC contaminants and a microporous filter downstream from the prefilter that filters contaminants by means of size-exclusion, mechanical interception, coagulation, or a combination thereof, the filter being adapted to significantly reduce fluid flow and undergo blockage under a challenge by TOC contaminants. In another embodiment, the present disclosure provides a method of filtration that includes the steps of providing a microporous filter disposed upstream from a final filter, the microporous filter capable of filtering contaminants from a fluid by means of size-exclusion, mechanical interception, coagulation, or a combination thereof, and said filter being adapted to significantly reduce fluid flow and undergo blockage under a challenge by TOC contaminants, and filtering the fluid through the microporous filter

Abstract translation: 在一个实施例中，本公开提供了用于最终滤波器的故障安全机制。 本公开的故障安全机构包括对TOC污染物基本上透明或半透明的预过滤器，以及通过尺寸排除，机械拦截，凝结或其组合来过滤污染物的预过滤器下游的微孔过滤器， 过滤器适于显着减少流体流动并在TOC污染物的挑战下发生堵塞。 在另一个实施方案中，本公开提供了一种过滤方法，其包括以下步骤：提供设置在最终过滤器上游的微孔过滤器，所述微孔过滤器能够通过尺寸排除，机械拦截，凝结等方式从流体中过滤污染物， 或其组合，并且所述过滤器适于显着减少流体流动并在TOC污染物的挑战下被堵塞，并通过微孔过滤器过滤流体。

公开(公告)号：US20050279696A1

公开(公告)日：2005-12-22

申请号：US11119120

申请日：2005-04-29

Applicant: Jeannine Bahm ,  Andrew Pearks ,  Guillermo Vidal ,  Dimitris Collias ,  Michael Mitchell ,  Robert Astle ,  Katharine Faye ,  Robert Governal ,  Thomas Hamlin ,  Rebecca Lucht ,  Hemang Patel

Inventor： Jeannine Bahm ,  Andrew Pearks ,  Guillermo Vidal ,  Dimitris Collias ,  Michael Mitchell ,  Robert Astle ,  Katharine Faye ,  Robert Governal ,  Thomas Hamlin ,  Rebecca Lucht ,  Hemang Patel

IPC: B01D39/14

CPC classification number: B01J20/20 ,  B01D39/04 ,  B01D39/2055 ,  B01D39/2058 ,  B01D39/2062 ,  B01D39/2065 ,  B01D2239/0442 ,  B01D2239/0471 ,  B01D2239/0485 ,  B01D2239/0613 ,  B01D2239/0618 ,  B01D2239/086 ,  B01D2239/10 ,  B01D2239/1216 ,  B01D2239/125 ,  B01D2239/1291 ,  B01J13/043 ,  B01J20/0233 ,  B01J20/28016 ,  B01J20/28023 ,  B01J20/2803 ,  B01J20/2808 ,  B01J20/28083 ,  B01J20/3236 ,  B01J20/3268 ,  B01J2220/42 ,  B01J2220/66 ,  C02F1/281 ,  C02F1/283 ,  C02F1/288 ,  C02F1/50 ,  C02F2201/006

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.