公开(公告)号：EP1027293A1

公开(公告)日：2000-08-16

申请号：EP98942519.4

申请日：1998-09-16

申请人： KRÜGER A/S

发明人： NIELSEN, Marinus ,  DAHL, Claus, Poulsen

IPC分类号： C02F3/12 ,  C02F3/30

CPC分类号： C02F3/12 ,  C02F3/30 ,  C02F3/302 ,  Y02W10/15

摘要： A process and an apparatus for biological purification of waste water by the activated sludge method, wherein the waste water is continuously passed through one or more treatment zones and a clarification zone in the same tank under such conditions that an accumulation of sludge occurs in the treatment zone from which the treated waste water is withdrawn, and wherein the direction of flow through the tank is reversed, so that the non-treated waste water, after accumulation of sludge has occurred at the outlet end of the tank, in a succeeding period, is introduced at this end, and treated waste water is withdrawn at the opposite end.

公开(公告)号：EP0835410B1

公开(公告)日：1999-12-15

申请号：EP96921913.8

申请日：1996-06-26

申请人： KRÜGER A/S

发明人： BISGAARD, Christian ,  SIMONSEN, Niels

IPC分类号： F23G5/04

CPC分类号： F23G5/04 ,  F23G7/001

摘要： The invention relates to a method for the drying and combustion of water-containing material containing combustible components, such as dehydrated waste water sludge, and wherein a water-containing material is introduced into a direct dryer, drying of the material introduced into the dryer by introduction of atmospheric air as drying air into the dryer, introduction of the dried material into a furnace and combustion of the material therein, introduction into the furnace of at least a portion of the drying air after the dryer as combustion air, preheating of the drying air intended for the drying of the material by utilization of the heat contained in the hot flue gas discharged from the furnace, while water is supplied to the atmospheric air in connection with the preheating whereby the water is evaporated, and wherein the water content in the drying air is reduced after the dryer in a condenser prior to its introduction as combustion air into the furnace. Moreover, the invention relates to a plant for carrying out this method. In such method it is possible to dry e.g. waste water sludge with a high water content to a degree of dryness that allows burning without auxiliary fuelling. Hereby improved operational economy is obtained.

公开(公告)号：EP0172660A2

公开(公告)日：1986-02-26

申请号：EP85305193.6

申请日：1985-07-22

申请人： I. Krüger A/S

发明人： Kaiser, Niels Edmund Guldbaek

IPC分类号： F24D3/00 ,  F24H1/10 ,  F25B27/00

CPC分类号： F24H4/02 ,  F24H1/107 ,  F25B27/00 ,  Y02B30/12

摘要： In a method and a device for the recovery of heat of condensation of aqueous vapours in flue gases from the boilers of a district heating plant, in which a steam-driven heat pump is used for the transmission of the heat content of the flue gases to the return water from the consumer circuit before the water is sent back to the boilers, a heat pump is used which has two steps. The first step is operated at a lower temperature than the second step. Discharge steam from the first step is utilized for the operation of the second step. The first step comprises a compressor heat pump driven by a steam expansion engine. The second step comprises a steam jet compressor. There is obtained a comparatively low temperature at the giving-off of the heat of condensation recovered, which is a condition for achieving a high effect factor necessary for obtaining reasonable installation costs.

摘要翻译： 在用于回收来自区域供热设备的锅炉的烟道气中的水蒸气的冷凝热的方法和装置中，其中使用蒸汽驱动的热泵将烟道气的热量传递到 在将水回送到锅炉之前，来自消费电路的回水，使用具有两个步骤的热泵。 第一步在低于第二步的温度下运行。 利用第一步骤的排出蒸汽进行第二步的运行。 第一步包括由蒸汽膨胀发动机驱动的压缩机热泵。 第二步包括蒸汽喷射压缩机。 在回收的冷凝热发生时获得较低的温度，这是获得合理安装成本所需的高效果的条件。

公开(公告)号：EP3114089B1

公开(公告)日：2019-05-01

申请号：EP15710128.8

申请日：2015-03-04

申请人： Danmarks Tekniske Universitet ,  Krüger A/S

发明人： ALBRECHTSEN, Hans-Jørgen ,  WAGNER, Florian Benedikt ,  NIELSEN, Peter Borch ,  BOE-HANSEN, Rasmus ,  FISCHER, Erling Vincentz

IPC分类号： C02F3/02 ,  C02F3/00 ,  C02F1/68 ,  C02F3/10 ,  C02F103/06 ,  C02F103/00 ,  C02F101/20 ,  C02F101/16 ,  C02F103/02 ,  C02F101/10

公开(公告)号：EP0938453B1

公开(公告)日：2002-05-08

申请号：EP97943791.0

申请日：1997-10-09

申请人： KRÜGER A/S

发明人： CHRISTENSEN, Terkel, Christian ,  NIELSEN, Peter, Borch

IPC分类号： C02F1/28 ,  C02F1/58 ,  C02F1/62

CPC分类号： C02F1/72 ,  C02F1/281 ,  C02F1/705 ,  C02F1/722 ,  C02F1/78 ,  C02F2101/20 ,  Y10S210/911 ,  Y10S210/912

公开(公告)号：EP1009721B1

公开(公告)日：2001-12-12

申请号：EP98930665.9

申请日：1998-07-03

申请人： KRÜGER A/S

发明人： RYKAER, Soren ,  PETERSEN, Gert

IPC分类号： C02F3/30 ,  C02F3/12

CPC分类号： C02F3/302 ,  C02F3/30 ,  Y10S210/903

摘要： A method and an apparatus for biological purification of waste water by the activated sludge method, whereby the waste water is continuously passed through several treatment zones in which the waste water is successively subjected to nitrification and denitrification, and which are arranged circularly around a supply zone for waste water, whereby the supply zone is alternatingly connected with one of the treatment zones, and optionally a clarification zone for dividing the treated waste water into a water fraction and a sludge fraction.

公开(公告)号：EP0869920B1

公开(公告)日：1999-11-03

申请号：EP95925750.2

申请日：1995-07-14

申请人： KRÜGER A/S

发明人： THOLANDER, Bent ,  NIELSEN, Marinus

IPC分类号： C02F3/12 ,  C02F3/30

CPC分类号： C02F3/121 ,  C02F3/30 ,  C02F3/302 ,  Y02W10/15 ,  Y10S210/903 ,  Y10S210/906

摘要： Method and plant for the purification of polluted water by the activated sludge method whereby a mixture of polluted water and recycled sludge is subjected to biological treatments in at least two treatment zones, comprising maintaining for a period such conditions in one of the treatment zones that a sludge precipitation occurs therein, supplying in a subsequent period the mixture of polluted water and recycled sludge directly or indirectly to the zone which, during the preceding period, served as a sludge precipitation zone prior to further treatment thereof in one or more treatment zones, and passing the treated water to a permanent clarification zone and separating it into a water fraction and a sludge fraction, at least a part of the latter being recycled and mixed with polluted water.

公开(公告)号：EP0938453A1

公开(公告)日：1999-09-01

申请号：EP97943791.0

申请日：1997-10-09

申请人： KRÜGER A/S

发明人： CHRISTENSEN, Terkel, Christian ,  NIELSEN, Peter, Borch

IPC分类号： C02F1 ,  C02F9

CPC分类号： C02F1/72 ,  C02F1/281 ,  C02F1/705 ,  C02F1/722 ,  C02F1/78 ,  C02F2101/20 ,  Y10S210/911 ,  Y10S210/912

摘要： A process for the removal of dissolved metals and/or metalloids from an aqueous medium containing same and having a high content of salt, whereby the aqueous medium in the presence of manganese (II) ions and an oxidation agent is passed through a particulate carrier material having a more closely specified density, initial average grain size and flow rate, so as to fluidize carrier material particles in the aqueous medium, and whereby the coated carrier material particles thereby formed are separated from the aqueous medium.

公开(公告)号：EP0428537A1

公开(公告)日：1991-05-29

申请号：EP89907692.0

申请日：1989-06-27

申请人： I. Krüger A/S

发明人： BUNDGAARD, Erik

IPC分类号： C02F3

CPC分类号： C02F3/121 ,  C02F3/1263 ,  C02F3/308 ,  Y02W10/15 ,  Y10S210/903

摘要： Dans le procédé et l'installation décrits, qui servent à l'épuration d'eau usée, l'eau résiduaire est traitée en alternance dans les deux zones de traitement dans des conditions anoxiques et aérobies et l'eau résiduaire ainsi traitée est soumise à un traitement aérobie dans une zone séparée avant d'être introduite dans une zone de clarification d'où l'eau résiduaire épurée et les boues sont retirées, au moins une partie des boues étant recyclées dans l'eau résiduaire qui est introduite dans l'une des deux zones de traitement.

公开(公告)号：EP0172660A3

公开(公告)日：1987-12-02

申请号：EP85305193

申请日：1985-07-22

申请人： I. Krüger A/S

发明人： Kaiser, Niels Edmund Guldbaek

IPC分类号： F24D03/00 ,  F24H01/10 ,  F25B27/00

CPC分类号： F24H4/02 ,  F24H1/107 ,  F25B27/00 ,  Y02B30/12

摘要： In a method and a device for the recovery of heat of condensation of aqueous vapours in flue gases from the boilers of a district heating plant, in which a steam-driven heat pump is used for the transmission of the heat content of the flue gases to the return water from the consumer circuit before the water is sent back to the boilers, a heat pump is used which has two steps. The first step is operated at a lower temperature than the second step. Discharge steam from the first step is utilized for the operation of the second step. The first step comprises a compressor heat pump driven by a steam expansion engine. The second step comprises a steam jet compressor. There is obtained a comparatively low temperature at the giving-off of the heat of condensation recovered, which is a condition for achieving a high effect factor necessary for obtaining reasonable installation costs.

摘要翻译： 在用于回收来自区域供热设备的锅炉的烟道气中的水蒸气的冷凝热的方法和装置中，其中使用蒸汽驱动的热泵将烟道气的热量传递到 在将水回送到锅炉之前，来自消费电路的回水，使用具有两个步骤的热泵。 第一步在低于第二步的温度下运行。 利用第一步骤的排出蒸汽进行第二步的运行。 第一步包括由蒸汽膨胀发动机驱动的压缩机热泵。 第二步包括蒸汽喷射压缩机。 在回收的冷凝热发生时获得较低的温度，这是获得合理安装成本所需的高效果的条件。