公开(公告)号：US5894077A

公开(公告)日：1999-04-13

申请号：US955855

申请日：1997-10-21

Applicant: Christopher Peter Jones ,  Paul Antony Harry Fennell ,  Patrick Alan Fletcher

Inventor： Christopher Peter Jones ,  Paul Antony Harry Fennell ,  Patrick Alan Fletcher

IPC: B01D61/44 ,  C02F1/461 ,  C02F1/467 ,  C02F1/469 ,  C02F1/62 ,  C22B60/02 ,  C25C1/20 ,  G21F9/00 ,  G21F9/06 ,  G21F9/10 ,  C25B1/00

CPC classification number: C22B60/0295 ,  B01D61/44 ,  C02F1/467 ,  C02F1/469 ,  G21F9/007 ,  G21F9/06 ,  C02F1/4678 ,  C02F2001/46138 ,  C02F2101/006 ,  C02F2201/46115

Abstract: A radioactive waste stream (12) is of high pH and contains a wide variety of different fission products and also organic materials which act as complexants. Technetium and/or ruthenium are removed by first electrolytically oxidising the organic materials at an anodically stable anode (26), and then electrolytically reducing the technetium and/or ruthenium at a porous fluid-permeable cathode (42). The cathode (42) might for example be of lead wool.

Abstract translation: 放射性废物流（12）具有高pH值，并且含有各种各样的不同的裂变产物以及作为络合剂的有机材料。 通过首先在阳极稳定的阳极（26）处电解氧化有机材料，然后在多孔流体可渗透的阴极（42）处电解还原锝和/或钌来除去锝和/或钌。 阴极（42）可以例如是铅羊毛。

公开(公告)号：US06478950B1

公开(公告)日：2002-11-12

申请号：US09647523

申请日：2000-10-02

Applicant: Robert Peat ,  Paul Antony Harry Fennell

Inventor： Robert Peat ,  Paul Antony Harry Fennell

IPC: G01N2726

CPC classification number: G01N27/38 ,  G01N27/40

Abstract: A sensor module for monitoring chemical properties of oil well fluids comprises at least one electrochemical sensor for a chemcal species, for example to detect pH and chloride ion concentration. A micro-porous barrier separates the electrochemical sensors from the environment of the module, the micro-porous barrier being of a material which is readily wetted by water. Periodic application of a current pulse between the barrier and a counter electrode enables fouling material to be removed from the micron barrier.

Abstract translation: 用于监测油井液的化学性质的传感器模块包括至少一种用于化学物质的电化学传感器，例如用于检测pH和氯离子浓度。 微孔屏障将电化学传感器与模块的环境分开，微孔屏障是容易被水润湿的材料。 在屏障和对电极之间定期施加电流脉冲使得能够从微米屏障中去除污垢物质。

公开(公告)号：US5958242A

公开(公告)日：1999-09-28

申请号：US763092

申请日：1996-12-10

Applicant: Paul Antony Harry Fennell

Inventor： Paul Antony Harry Fennell

IPC: B01D35/06 ,  B01D61/42 ,  B01D65/02 ,  B01D65/08 ,  B01D15/04 ,  B01D61/00

CPC classification number: B01D65/08 ,  B01D35/06 ,  B01D61/425 ,  B01D65/02 ,  B01D2321/22

Abstract: A filter which can be cleaned in situ consists of a filter membrane (33), and fluid permeable electrodes (34, 35). The membrane may be one of the electrodes, or may be electrically non-conducting but integral with or in contact with one of the electrodes (34). The electrodes (34, 35) are separated from each other only by a fluid permeable electrically insulating sheet. This sheet may be less than 1 mm thick, and may be the filter membrane (33). The filter is cleaned by periodic brief applications of electric current between the electrodes (34, 35) so that gas is generated electrolytically, and the close spacing of the electrodes (34, 35) reduces the electric power required.

Abstract translation: 可以原位清洗的过滤器由过滤膜（33）和流体可渗透电极（34,35）组成。 膜可以是电极之一，或者可以是非导电的，但是与电极（34）中的一个电极整体地或与其接触。 电极（34,35）仅由流体可渗透的电绝缘片彼此分开。 该片材可以小于1mm厚，并且可以是过滤膜（33）。 通过电极（34,35）之间的电流的周期性短暂的应用来清洁过滤器，使得电解产生气体，并且电极（34,35）的紧密间隔减小了所需的电力。