公开(公告)号：DE69915595D1

公开(公告)日：2004-04-22

申请号：DE69915595

申请日：1999-02-02

Applicant: TODD JOHN JAMES

Inventor： TODD JAMES ,  HOPWOOD ADRIAN

IPC: C02F3/10 ,  C12N11/08 ,  C12N11/14 ,  C12N11/00

Abstract: A loose particulate material for use in waste water treatment comprises granules of plastics material carrying weighting material so that the granules have an average density of approximately 1.0g/cc. At least a portion of the weighting material is carried within the granules and the surfaces of the granules are provided with concavities to provide a habitat for organisms effective in waste water treatment. The particles are manufactured by incorporating a weighting material into the granules, contacting the granules with grains of a soluble substance at an elevated temperature to coat the granules with the soluble substance grains and subsequently dissolving the soluble substance grains. The weighting material may be sand, the soluble substance may be sodium chloride.

公开(公告)号：DK0871595T3

公开(公告)日：2001-09-10

申请号：DK96902375

申请日：1996-02-13

Applicant: PROCEFF LTD ,  TODD JOHN JAMES

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：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：NO973712D0

公开(公告)日：1997-08-12

申请号：NO973712

申请日：1997-08-12

Applicant: PROCEFF LTD ,  TODD JOHN JAMES

Inventor： TODD JOHN JAMES ,  HOPWOOD ADRIAN

IPC: B01J2/00 ,  C02F3/10 ,  C02F3/12 ,  C02F

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：CA2211649A1

公开(公告)日：1996-08-22

申请号：CA2211649

申请日：1996-02-13

Applicant: TODD JOHN JAMES ,  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 are 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：HU224100B1

公开(公告)日：2005-05-30

申请号：HU9801413

申请日：1996-02-13

Applicant: PROCEFF LTD ,  TODD JOHN JAMES

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：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：NO973712L

公开(公告)日：1997-09-19

申请号：NO973712

申请日：1997-08-12

Applicant: PROCEFF LTD ,  TODD JOHN JAMES

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：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.