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公开(公告)号：ES2120168T3
公开(公告)日：1998-10-16
申请号：ES95903882
申请日：1994-12-22
Applicant: PROCEFF LTD , TODD JOHN JAMES
Inventor： TODD JOHN JAMES , HOPWOOD ADRIAN
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.
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公开(公告)号：DE69207405D1
公开(公告)日：1996-02-15
申请号：DE69207405
申请日：1992-05-01
Applicant: TODD JOHN JAMES
Inventor： TODD JOHN JAMES
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.
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公开(公告)号：PT871595E
公开(公告)日：2001-11-30
申请号：PT96902375
申请日：1996-02-13
Applicant: TODD JOHN JAMES , PROCEFF LTD
Inventor： TODD JOHN JAMES , HOPWOOD ADRIAN
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.
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公开(公告)号：ES2160800T3
公开(公告)日：2001-11-16
申请号：ES96902375
申请日：1996-02-13
Applicant: PROCEFF LTD , TODD JOHN JAMES
Inventor： TODD JOHN JAMES , HOPWOOD ADRIAN
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.
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公开(公告)号：GB2334029A
公开(公告)日：1999-08-11
申请号：GB9802388
申请日：1998-02-04
Applicant: TODD JOHN JAMES
Inventor： HOPWOOD ADRIAN , TODD JOHN JAMES
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.
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Patent Agency Ranking
公开(公告)号：PL321777A1
公开(公告)日：1997-12-22
申请号：PL32177796
申请日：1996-02-13
Applicant: TODD JOHN JAMES , PROCEFF LTD
Inventor： TODD JOHN JAMES , HOPWOOD ADRIAN
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.
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公开(公告)号：NO973712A
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
CPC classification number: C02F3/085 , B01J2/006 , C02F3/10 , Y02W10/15 , Y10T428/2993 , Y10T428/2998
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公开(公告)号：NO318104B1
公开(公告)日：2005-01-31
申请号：NO973712
申请日：1997-08-12
Applicant: PROCEFF LTD , TODD JOHN JAMES
Inventor： TODD JOHN JAMES , HOPWOOD ADRIAN
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.
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公开(公告)号：ES2218990T3
公开(公告)日：2004-11-16
申请号：ES99903817
申请日：1999-02-02
Applicant: TODD JOHN JAMES
Inventor： TODD JOHN JAMES , HOPWOOD ADRIAN
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.
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公开(公告)号：PT1051361E
公开(公告)日：2004-08-31
申请号：PT99903817
申请日：1999-02-02
Applicant: TODD JOHN JAMES
Inventor： TODD JOHN JAMES , HOPWOOD ADRIAN
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.
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