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1.发明公开METHOD FOR ACTIVATED SLUDGE WASTEWATER TREATMENT WITH HIGH DISSOLVED OXYGEN LEVELS 有权活性污泥废水处理和高溶氧水平进行方法
公开(公告)号：EP2181073A1
公开(公告)日：2010-05-05
申请号：EP08756378.9
申请日：2008-05-28
CPC分类号： C02F3/12 , B01F3/04609 , B01F13/0049 , C02F3/16 , C02F3/206 , C02F3/26 , C02F2209/001 , C02F2209/10 , C02F2209/22 , Y02W10/15
摘要： An activated sludge wastewater treatment method is provided. The disclosed method includes: receiving a stream of wastewater into a mixed liquor in an uncovered activated sludge basin; introducing high purity oxygen to the mixed liquor in the activated sludge basin to produce euoxic conditions (i.e. a dissolved oxygen level in the range of between about 5 mg to 15 mg) in the activated sludge basin; passing a portion of the mixed liquor in the activated sludge basin through a clarifier to separate activated sludge and produce an effluent stream and an activated sludge stream; and recycling a portion of the activated sludge stream to the activated sludge basin to produce a mixed liquor having a solids loading of between about 3000 mg and about 10000 mg of suspended solids per liter of mixed liquor and a solids retention time of between about 7 days and 40 days.
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公开(公告)号：EP1355723A1
公开(公告)日：2003-10-29
申请号：EP02701032.1
申请日：2002-01-11
IPC分类号： B01D53/62
CPC分类号： B01D53/62 , B01D53/1418 , B01D53/1475 , B01D2257/504 , C01B32/50 , Y02C10/04 , Y02C10/06 , Y02P20/152
摘要： A system for recovering absorbate such as carbon dioxide from an oxygen containing mixture wherein carbon dioxide is concentrated in an alkanolamine containing absorption fluid, oxygen is separated from the absorption fluid, the resulting fluid is heated, and carbon dioxide is steam stripped from the absorption fluid and recovered.
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公开(公告)号：EP4409208A1
公开(公告)日：2024-08-07
申请号：EP22734446.2
申请日：2022-06-02
发明人： SEVER, Robert R. , ZHOU, Ying , BURSAC, Ranko , GUPTA, Amitabh
IPC分类号： F25D3/12
CPC分类号： F25D3/12 , F25D2201/1420130101
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公开(公告)号：EP1966396A2
公开(公告)日：2008-09-10
申请号：EP07855297.3
申请日：2007-12-20
发明人： CONNERY, Karen, Anne , NOVAK, Richard, A. , HO, Simon , GUPTA, Amitabh , DE WILDE, Robert, Marcel
摘要： A method of oxygen- free heat treatment of a steel part in an atmospheric pressure furnace is disclosed. The present batch treatment process employs an oxygen-free controlled gas atmosphere including hydrogen gas in concentrations between about 1.0 percent to 10.0 percent, a hydrocarbon gas, such as propylene, in concentrations of between about 0.1 percent and 10.0 percent that varies as a function of time, with the balance of the gas atmosphere being nitrogen. The present continuous furnace treatment process employs a plurality of zones with each zone including an oxygen-free controlled gas atmosphere including hydrogen gas in concentrations between about 1.0 percent to 10.0 percent that varies across the different zones, a hydrocarbon gas, such as propylene, in concentrations of between about 0.1 percent and 10.0 percent that varies across the different zones, with the balance of the gas atmosphere within each zone being nitrogen. The presently disclosed oxygen-free heat treatment processes, preferably carburization processes, use a precisely controlled atmosphere to minimize inter- granular oxidation, eliminate the formation of soot and cementite or other metallic carbides, and avoid hydrogen embrittlement.
摘要翻译： 公开了一种在常压炉中对钢部件进行无氧热处理的方法。 本批处理工艺采用无氧控制气体气氛，其包括浓度在约1.0％至10.0％之间的氢气，浓度在约0.1％至10.0％之间的烃气体如丙烯，其作为 时间，气体氛围的平衡是氮气。 本发明的连续炉处理工艺采用多个区域，每个区域包括无氧控制气体气氛，其包括浓度在大约1.0％至10.0％之间的氢气，其在不同的区域中变化，烃气体例如丙烯 约0.1％至10.0％的浓度在不同区域之间变化，其中每个区域内的气体氛围的平衡是氮气。 目前公开的无氧热处理工艺，优选渗碳工艺使用精确控制的气氛以使晶粒间氧化最小化，消除烟灰和渗碳体或其它金属碳化物的形成并避免氢脆。
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公开(公告)号：EP2313486B1
公开(公告)日：2015-07-01
申请号：EP09791206.7
申请日：2009-08-06
发明人： CHENG, Alan, T.y. , ZHOU, Ying , GUPTA, Amitabh , HUNEK, Balazs , GRINTER, Nigel
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6.发明授权METHOD FOR ACTIVATED SLUDGE WASTEWATER TREATMENT WITH HIGH DISSOLVED OXYGEN LEVELS 有权活性污泥废水处理和高溶氧水平进行方法
公开(公告)号：EP2181073B1
公开(公告)日：2012-07-04
申请号：EP08756378.9
申请日：2008-05-28
CPC分类号： C02F3/12 , B01F3/04609 , B01F13/0049 , C02F3/16 , C02F3/206 , C02F3/26 , C02F2209/001 , C02F2209/10 , C02F2209/22 , Y02W10/15
摘要： An activated sludge wastewater treatment method is provided. The disclosed method includes: receiving a stream of wastewater into a mixed liquor in an uncovered activated sludge basin; introducing high purity oxygen to the mixed liquor in the activated sludge basin to produce euoxic conditions (i.e. a dissolved oxygen level in the range of between about 5 mg to 15 mg) in the activated sludge basin; passing a portion of the mixed liquor in the activated sludge basin through a clarifier to separate activated sludge and produce an effluent stream and an activated sludge stream; and recycling a portion of the activated sludge stream to the activated sludge basin to produce a mixed liquor having a solids loading of between about 3000 mg and about 10000 mg of suspended solids per liter of mixed liquor and a solids retention time of between about 7 days and 40 days.
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公开(公告)号：EP2313486A1
公开(公告)日：2011-04-27
申请号：EP09791206.7
申请日：2009-08-06
发明人： CHENG, Alan, T.y. , ZHOU, Ying , GUPTA, Amitabh , HUNEK, Balazs , GRINTER, Nigel
摘要： A system and method for controlling a mammalian cell culture process are provided. Such control of the cell culture process involves control of the level of dissolved carbon dioxide in the cell culture media and the resulting ability to prevent increases in the osmolality level is achieved by enhanced stripping of carbon dioxide with little or no damage to the mammalian cells. The disclosed methods and systems of dissolved carbon dioxide stripping include enhanced surface gas exchange mechanisms within the bioreactor vessel through the use of an upward flow impeller combined with vertical baffles to convert swirling motions of the liquid into a largely vertical flow;.
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8.发明公开METHOD FOR CONTROLLING pH, OSMOLALITY AND DISSOLVED CARBON DIOXIDE LEVELS IN A MAMMALIAN CELL CULTURE PROCESS TO ENHANCE CELL VIABILITY AND BIOLOGIC PRODUCT YIELD 审中-公开在哺乳动物细胞培养方法一种控制pH值，渗透压和溶解二氧化碳水平用于改善细胞活力和生物制品RETURN
公开(公告)号：EP2310493A1
公开(公告)日：2011-04-20
申请号：EP09791207.5
申请日：2009-08-06
IPC分类号： C12N5/07
CPC分类号： C12N5/0018 , C12N2500/60
摘要： Methods for controlling the level of dissolved carbon dioxide and limiting osmolality in a mammalian cell culture process to enhance cell growth, viability and density, and increase biologic product concentration and yield are provided. Such control of the level of dissolved carbon dioxide and pH as well as the resulting ability to limit osmolality in a mammalian cell culture process is achieved by adopting alternative pH control strategies and CO
2 stripping techniques during a mammalian cell culture process. Such pH control techniques and carbon dioxide stripping occur with little or no damage to the mammalian cells.-
公开(公告)号：EP1973630A1
公开(公告)日：2008-10-01
申请号：EP06845518.7
申请日：2006-12-15
CPC分类号： B01D53/1493 , B01D53/1475 , C01B32/50 , Y02C10/06 , Y02P20/152
摘要： Carbon dioxide is recovered in concentrated form from a gas feed stream also containing oxygen by absorbing carbon dioxide and oxygen into an amine solution that also contains another organic component, removing oxygen, and recovering carbon dioxide from the absorbent.
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公开(公告)号：EP1966398A1
公开(公告)日：2008-09-10
申请号：EP07865917.4
申请日：2007-12-20
发明人： CONNERY, Karen, Anne , NOVAK, Richard, A. , HO, Simon , GUPTA, Amitabh , DE WILDE, Robert, Marcel
摘要： A method of controlling an oxygen-free heat treating process in an atmospheric pressure furnace is disclosed. The present method employs an oxygen-free gas atmosphere including hydrogen gas in concentrations between about 1.0 percent to 10.0 percent, a hydrocarbon gas, such as propylene, in concentrations of between about 0.1 percent and 10.0 percent that varies as a function of time, with the balance of the gas atmosphere being nitrogen. The presently disclosed oxygen-free carburization process uses a precisely controlled gas atmosphere to minimize inter-granular oxidation, eliminate the formation of soot and cementite, and avoid hydrogen embrittlement.
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