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1. 发明授权

US06350382B1 Enhancing filtration yields in tangential flow filtration 有权
标题翻译：提高切向流过滤中的过滤产量
公开(公告)号：US06350382B1
公开(公告)日：2002-02-26
申请号：US09603148
申请日：2000-06-23
申请人： Karl G. Schick
发明人： Karl G. Schick
IPC分类号： B01D6112
CPC分类号： B01D61/145 , B01D61/16 , B01D61/18 , B01D61/22 , B01D2311/04 , B01D2313/58 , B01D2315/16 , B01D2311/14 , B01D2311/16
摘要： A system is provided for proceeding with filtration of liquids in a manner having enhanced control characteristics. Yields are enhanced. The system and method can be used to maintain a substantially constant trans-membrane pressure. When desired, that constant trans-membrane pressure is especially well-suited to yield enhancement for the particular liquid being filtered, concentrated or collected, while minimizing a risk of damage to or loss of valuable components. Additionally, a constant feed rate or pump output can be maintained. Approaches also are described for determining optimal filtration conditions, including trans-membrane pressure and feed rate. Also described is a system and method for determining pressures in a pulsating system with enhanced accuracy by using a peak pressure mode.
摘要翻译：提供了一种以具有增强的控制特性的方式进行液体过滤的系统。产量提高。该系统和方法可用于维持基本恒定的跨膜压力。当需要时，恒定的跨膜压力特别适合于对被过滤，浓缩或收集的特定液体产生增强，同时最小化损坏或损失有价值的组分的风险。另外，可以保持恒定的进给速率或泵输出。还描述了用于确定最佳过滤条件的方法，包括跨膜压力和进料速率。还描述了一种通过使用峰值压力模式来提高精度的脉动系统中的压力的系统和方法。

2. 发明授权

US06620314B2 Production of pyrogen controlled water 失效
公开(公告)号：US06620314B2
公开(公告)日：2003-09-16
申请号：US10172616
申请日：2002-06-14
申请人： William Tully , Evelyn Madigan
发明人： William Tully , Evelyn Madigan
IPC分类号： B01D6112
CPC分类号： B01D61/20 , B01D61/18 , B01D61/22 , C02F1/444
摘要： A unit 1 for producing pyrogen controlled water on a small to medium factory scale comprises a number of charged ultrafiltration units 10 arranged in parallel. Orifice plates 15 are used to restrict and control the flow of deionized water to each filter 10. The filter units 10 are mounted on a frame 2 with a wheeled chassis 3 which may be pushed or moved by a forklift truck to a site where pyrogen controlled water is required. The unit 1 has an inlet line 4 for connection to a supply of deionized water and an outlet line 6 for connection to a user of pyrogen controlled water. The unit 1 may be purged with nitrogen from a supply 18. Sampling ports 17 in a common supply inlet 4 and a common outlet 6 ensure that the filtration efficiency can be closely monitored. The flow of water is monitored by a flowmeter 19 and pressure sensors 16 upstream of each filter facilitate a high level of control.

3. 发明授权

US06607669B2 Method and apparatus for enhancing filtration yields in tangential flow filtration 有权
公开(公告)号：US06607669B2
公开(公告)日：2003-08-19
申请号：US09977454
申请日：2001-10-15
申请人： Karl G. Schick
发明人： Karl G. Schick
IPC分类号： B01D6112
CPC分类号： B01D61/145 , B01D61/147 , B01D61/16 , B01D61/20 , B01D61/22 , B01D2311/04 , B01D2315/16 , B01D2311/14 , B01D2311/18 , B01D2311/243 , B01D2311/16
摘要： A system is provided for proceeding with filtration of liquids in a manner having enhanced control characteristics. Yields are enhanced. The system and method can be used to maintain a substantially constant trans-membrane pressure. When desired, that constant trans-membrane pressure is especially well-suited to yield enhancement for the particular liquid being filtered, concentrated or collected, while minimizing a risk of damage to or loss of valuable components. Additionally, a constant feed rate or pump output can be maintained.

4. 发明授权

US06190556B1 Desalination method and apparatus utilizing nanofiltration and reverse osmosis membranes 失效
标题翻译：采用纳滤和反渗透膜的脱盐方法和设备
公开(公告)号：US06190556B1
公开(公告)日：2001-02-20
申请号：US09170142
申请日：1998-10-12
申请人： Robert A. Uhlinger
发明人： Robert A. Uhlinger
IPC分类号： B01D6112
CPC分类号： C02F1/442 , B01D61/022 , B01D61/12 , B01D63/12 , B01D65/02 , B01D2321/02 , B01D2321/10 , C02F1/441 , Y02A20/131
摘要： Apparatus and methods for producing potable water from an aqueous feed such as seawater utilizing a pressure vessel designed for operation in the range of about 250 psig to about 350 psig having reverse osmosis (RO) separation elements disposed upstream of at least one nanofiltrate separation element. The supply of seawater at such pressure creates no permeate flow through the RO membranes, so the seawater flushes the feed side of the RO elements on its way to the NF element where very substantial permeate flux occurs, producing a NF permeate substantially depleted in divalent ions and optionally moderately depleted in monovalent ions. The NF permeate is collected in a holding tank having liquid level switches, and when a desired level is reached, a control system causes the pump to draw suction from the holding tank while shutting off feed from the seawater source. When the NF permeate is supplied to the feed side of the RO elements, its osmotic pressure is such that substantial RO permeation now occurs creating a stream of good quality potable water. During both stages of operation, energy is conserved by routing the concentrate stream leaving the pressure vessel through an energy recovery device that boosts the pressure of the liquid being discharged from the positive displacement pump.
摘要翻译：使用设计用于在约250psig至约350psig范围内操作的压力容器的含水进料如海水生产饮用水的装置和方法，其具有设置在至少一个纳滤滤器分离元件上游的反渗透（RO）分离元件。在这种压力下的海水供应不会产生通过RO膜的渗透物流，因此海水在其途中被RO元素的进入侧冲击到NF元件，其中产生非常实质的渗透通量，产生基本上耗尽二价离子的NF渗透物并且任选地适度地耗尽一价离子。 NF渗透物被收集在具有液位开关的储存罐中，并且当达到期望水平时，控制系统使得泵在从海水源关闭的同时从储存罐抽吸。当NF渗透物被供应到RO元件的进料侧时，其渗透压使得现在产生大量的RO渗透，产生优质的饮用水流。在两个操作阶段，通过使离开压力容器的浓缩物料流通过能量回收装置来节省能量，该能量回收装置可以增加从正排量泵排出的液体的压力。

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