公开(公告)号：GB2343389A

公开(公告)日：2000-05-10

申请号：GB9823304

申请日：1998-10-23

Applicant: TODD JOHN JAMES

Inventor： TODD JOHN JAMES ,  AUSTIN CHARLES ERIC

IPC: B01F29/63 ,  B05C3/08 ,  B29B7/90 ,  B29B9/16

Abstract: Granules of plastics material are coated with a mixture of sand and salt grains by tumbling and heating a mixture of grains and plastics granules by passing them along a heated rotating hollow tube 1. The grains and plastics material granules are fed from hoppers 7,8, mixed by rib(s) 6 and heated to a temperature not less than the softening temperature of the plastics granules by a heater 5 . The coated granules are then tumbled and cooled before leaving the rotating hollow tube. The salt grains may then be removed by washing, to form a waste water treatment medium.

公开(公告)号：CA2108574C

公开(公告)日：2004-01-20

申请号：CA2108574

申请日：1992-05-01

Applicant: TODD JOHN JAMES

Inventor： TODD JOHN JAMES

IPC: B01F3/04 ,  C02F3/20

Abstract: An apertured flexible membrane (10) extends over a domed support (11). A central gas supply tube (50, 82) terminates in gas outlets (51) oriented to direct the gas to flow horizontally into the space (40) between the membrane and the support to inflate the membrane away from the support so that gas from the inflated space discharges through the apertures (60) as fine bubbles and such that when the gas supply ceases the membrane collapses back into ar ea contact with the support to seal all the apertures. This reduces clogging. The aerator is useful in the aeration of sewage or waste water and in fish or eel farms.

公开(公告)号：AU6356399A

公开(公告)日：2000-05-15

申请号：AU6356399

申请日：1999-10-25

Applicant: AERODISC INTERNATIONAL LTD ,  AUSTIN CHARLES ERIC ,  TODD JOHN JAMES

Inventor： TODD JOHN JAMES ,  AUSTIN CHARLES ERIC

IPC: B01F29/63 ,  B05C3/08 ,  B29B7/90 ,  B29B9/16 ,  B01J2/00 ,  B01J2/12

Abstract: Granules of plastics material are coated with a mixture of sand and salt grains by tumbling and heating a mixture of grains and plastics granules by passing them along a heated rotating hollow tube 1. The grains and plastics material granules are fed from hoppers 7,8, mixed by rib(s) 6 and heated to a temperature not less than the softening temperature of the plastics granules by a heater 5 . The coated granules are then tumbled and cooled before leaving the rotating hollow tube. The salt grains may then be removed by washing, to form a waste water treatment medium.

公开(公告)号：DE69207405T2

公开(公告)日：1996-09-12

申请号：DE69207405

申请日：1992-05-01

Applicant: TODD JOHN JAMES

Inventor： TODD JOHN JAMES

IPC: B01F3/04 ,  C02F3/20

Abstract: PCT No. PCT/GB92/00800 Sec. 371 Date Nov. 2, 1993 Sec. 102(e) Date Nov. 2, 1993 PCT Filed May 1, 1992 PCT Pub. No. WO92/19546 PCT Pub. Date Nov. 12, 1992.An apertured flexible membrane (10) extends over a domed support (11). A central gas supply tube (50,82) terminates in gas outlets (51) oriented to direct the gas to flow horizontally into the space (40) between the membrane and the support to inflate the membrane away from the support so that gas from the inflated space discharges through the apertures (60) as fine bubbles and such that when the gas supply ceases the membrane collapses back into area contact with the support to seal all the apertures. This reduces clogging. The aerator is useful in the aeration of sewage or waste water and in fish or eel farms.

公开(公告)号：ES2083169T3

公开(公告)日：1996-04-01

申请号：ES92909509

申请日：1992-05-01

Applicant: TODD JOHN JAMES

Inventor： TODD JOHN JAMES

IPC: B01F3/04 ,  C02F3/20

Abstract: PCT No. PCT/GB92/00800 Sec. 371 Date Nov. 2, 1993 Sec. 102(e) Date Nov. 2, 1993 PCT Filed May 1, 1992 PCT Pub. No. WO92/19546 PCT Pub. Date Nov. 12, 1992.An apertured flexible membrane (10) extends over a domed support (11). A central gas supply tube (50,82) terminates in gas outlets (51) oriented to direct the gas to flow horizontally into the space (40) between the membrane and the support to inflate the membrane away from the support so that gas from the inflated space discharges through the apertures (60) as fine bubbles and such that when the gas supply ceases the membrane collapses back into area contact with the support to seal all the apertures. This reduces clogging. The aerator is useful in the aeration of sewage or waste water and in fish or eel farms.

公开(公告)号：AT132467T

公开(公告)日：1996-01-15

申请号：AT92909509

申请日：1992-05-01

Applicant: TODD JOHN JAMES

Inventor： TODD JOHN JAMES

IPC: B01F3/04 ,  C02F3/20

Abstract: PCT No. PCT/GB92/00800 Sec. 371 Date Nov. 2, 1993 Sec. 102(e) Date Nov. 2, 1993 PCT Filed May 1, 1992 PCT Pub. No. WO92/19546 PCT Pub. Date Nov. 12, 1992.An apertured flexible membrane (10) extends over a domed support (11). A central gas supply tube (50,82) terminates in gas outlets (51) oriented to direct the gas to flow horizontally into the space (40) between the membrane and the support to inflate the membrane away from the support so that gas from the inflated space discharges through the apertures (60) as fine bubbles and such that when the gas supply ceases the membrane collapses back into area contact with the support to seal all the apertures. This reduces clogging. The aerator is useful in the aeration of sewage or waste water and in fish or eel farms.

公开(公告)号：AU4671396A

公开(公告)日：1996-09-04

申请号：AU4671396

申请日：1996-02-13

Applicant: JOHN JAMES TODD ,  PROCEFF LTD

Inventor： TODD JOHN JAMES ,  HOPWOOD ADRIAN

IPC: B01J2/00 ,  C02F3/10 ,  C02F3/12

Abstract: Granules of plastics material have grains of an inert mineral such as sand coated thereon to provide a habitat for microorganisms effective in waste water treatment, the granules having a predetermined particle size range, and the grains having a predetermined particle size range and being disposed at a predetermined packing density range on the granules. The particles have an average density of approximately 1.0 g/cc such that a proportion tend to float and a proportion tend to sink in the waste water. The particles arc manufactured by contacting the granules of plastics material with a mixture of grains of the inert mineral and grains of a soluble substance such as salt, at an elevated temperature, to coat the granules with the mixture, and subsequently dissolving the soluble substance grains from the coating to provide the granules coated with the grains of inert mineral in the predetermined packing density range.

公开(公告)号：HU9801413A2

公开(公告)日：1998-09-28

申请号：HU9801413

申请日：1996-02-13

Applicant: PROCEFF LTD ,  TODD

Inventor： HOPWOOD ADRIAN ,  TODD JOHN JAMES

IPC: B01J2/00 ,  C02F3/10 ,  C02F3/12

Abstract: Granules of plastics material have grains of an inert mineral such as sand coated thereon to provide a habitat for microorganisms effective in waste water treatment, the granules having a predetermined particle size range, and the grains having a predetermined particle size range and being disposed at a predetermined packing density range on the granules. The particles have an average density of approximately 1.0 g/cc such that a proportion tend to float and a proportion tend to sink in the waste water. The particles arc manufactured by contacting the granules of plastics material with a mixture of grains of the inert mineral and grains of a soluble substance such as salt, at an elevated temperature, to coat the granules with the mixture, and subsequently dissolving the soluble substance grains from the coating to provide the granules coated with the grains of inert mineral in the predetermined packing density range.

公开(公告)号：AU1278295A

公开(公告)日：1995-07-10

申请号：AU1278295

申请日：1994-12-22

Applicant: JOHN JAMES TODD ,  PROCEFF LTD

Inventor： TODD JOHN JAMES ,  HOPWOOD ADRIAN

IPC: B01F33/40 ,  C02F3/10 ,  C02F3/12 ,  C02F3/20

Abstract: A treatment vessel (50) contains a fluidizable bed (70) of loose particulate material comprising particles of sharp sand adhered to granules of polyethylene to provide a habitat for microorganisms effective in wastewater treatment. The material has a desired density slightly greater than 1.0 g/cc, a specific surface area in excess of 600 m /m , and a particule size range of about 3 mm to 10 mm. The bed and wastewater is fluidized and aerated by air bubbles emitted from self-sealing aerators (71) disposed at the base of the bed and arranged for placement and removal from above the water level. The loose material can rest directly on the aerator surface.

公开(公告)号：AU714279B2

公开(公告)日：1999-12-23

申请号：AU4671396

申请日：1996-02-13

Applicant: JOHN JAMES TODD ,  PROCEFF LTD

Inventor： TODD JOHN JAMES ,  HOPWOOD ADRIAN

IPC: B01J2/00 ,  C02F3/10 ,  C02F3/12

Abstract: Granules of plastics material have grains of an inert mineral such as sand coated thereon to provide a habitat for microorganisms effective in waste water treatment, the granules having a predetermined particle size range, and the grains having a predetermined particle size range and being disposed at a predetermined packing density range on the granules. The particles have an average density of approximately 1.0 g/cc such that a proportion tend to float and a proportion tend to sink in the waste water. The particles arc manufactured by contacting the granules of plastics material with a mixture of grains of the inert mineral and grains of a soluble substance such as salt, at an elevated temperature, to coat the granules with the mixture, and subsequently dissolving the soluble substance grains from the coating to provide the granules coated with the grains of inert mineral in the predetermined packing density range.