公开(公告)号：CA2315555A1

公开(公告)日：2001-06-01

申请号：CA2315555

申请日：2000-08-09

Applicant: FANTOM TECH INC

Inventor： BOHRSEN TERRY B ,  CONRAD WAYNE ERNEST ,  DUFF RICHARD M

IPC: C02F1/78 ,  G01N33/00 ,  G01N33/18 ,  G01N27/416

Abstract: A liquid purification apparatus which uses ozone to purify water is disclosed. Off-gas from the purification process is passed through an ozone detector that provides an electric signal corresponding to the ozone concentration in the off-gas. The electric signal is monitored and used to control the length of the ozonation process. The detector comprises a MgO2 and CuO based ozone destroying catalyst which generates an electric potential when used to decompose ozone into oxygen.

公开(公告)号：CA2315556A1

公开(公告)日：2001-02-18

申请号：CA2315556

申请日：2000-08-09

Applicant: FANTOM TECH INC

Inventor： CONRAD WAYNE ERNEST ,  DUFF RICHARD M

IPC: G01N27/04

Abstract: This invention relates to a thermoelectrical method and apparatus for measuring the concentration of a gas, and, in particular, a reactive gas (i.e. gasses that may be reacted to produce by-products and which produce heat or remove heat from a system as a result of the reaction) using the electrical resistance of a member upon exposure to the reactive gas. Examples of such gases include, ozone, oxygen, nitrogen or oxides of nitrogen, and the like. In the instant invention, a thermoelectric means is provided to generate a signal which is associated with a display to provide a readout of the concentration of the gas.