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公开(公告)号：US07261820B2
公开(公告)日：2007-08-28
申请号：US10873598
申请日：2004-06-23
IPC分类号： C02F1/62 , C02F101/20
CPC分类号： C02F1/5245 , C02F1/488 , C02F1/66 , C02F1/705 , C02F2101/20 , C02F2103/06 , Y10S210/912
摘要： A method and system for decreasing the concentration of at least one metal in an aqueous solution. The metal may be molybdenum, tungsten, or both. An aqueous solution is introduced into at least one reaction zone, and at least one source of hydroxide ions is provided into the at least one reaction zone in an amount sufficient to precipitate at least some of the mass of the at least one metal. The aqueous solution includes a mass of the at least one metal and a mass of at least one reducing agent. The at least one reducing agent includes at least ferrous iron from at least one source of the at least one reducing agent. A composition of tungsten ferrite or molybdenum tungsten ferrite may be formed. The method may be used for purifying water, for the refining of metals, or to facilitate a chemical analytical determination.
摘要翻译： 一种降低水溶液中至少一种金属的浓度的方法和系统。 金属可以是钼，钨或两者。 将水溶液引入至少一个反应区，并且将至少一个氢氧根离子源提供至至少一个反应区中，其量足以沉淀至少一种该至少一种金属的质量。 水溶液包括至少一种金属的质量和至少一种还原剂的质量。 至少一种还原剂至少包含来自至少一种还原剂的至少一种来源的亚铁。 可以形成钨铁氧体或钼钨铁氧体的组成。 该方法可用于净化水，用于金属精炼，或用于化学分析测定。
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2.发明授权Monitoring of volatile organic compounds in groundwater with an in-situ sampling device 失效用现场取样装置监测地下水中的挥发性有机化合物公开(公告)号：US06272938B1
公开(公告)日：2001-08-14
申请号：US09543963
申请日：2000-04-07
申请人： Sunita Singh Baghel , Patricia Denise Mackenzie , Timothy Mark Sivavec , Angelo Anthony Bracco , Joseph James Salvo
发明人： Sunita Singh Baghel , Patricia Denise Mackenzie , Timothy Mark Sivavec , Angelo Anthony Bracco , Joseph James Salvo
IPC分类号： G01N100
CPC分类号： G01N1/34 , G01N1/12 , G01N33/1826 , G01N2001/4016 , Y02A20/206
摘要： A sampling device can monitor contaminants in groundwater. The sampling device comprises a semi-permeable membrane for contact with groundwater, in which the semi-permeable membrane is permeable to contaminants and impermeable to groundwater; an inner chamber formed by the semi-permeable membrane for containing the contaminants from the groundwater that diffuse through the semi-permeable membrane; and a sensor device communicating with the inner chamber. The sensor device is in contact with the contaminants contained within the inner chamber for monitoring the contaminants.
摘要翻译： 采样设备可以监测地下水中的污染物。 采样装置包括用于与地下水接触的半透膜，其中半透膜可渗透污染物并且不渗透地下水; 由半透膜形成的内室，用于容纳来自地下水的污染物，其通过半透膜扩散; 以及与内室连通的传感器装置。 传感器装置与包含在内腔内的污染物接触，用于监测污染物。
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公开(公告)号：US06436710B1
公开(公告)日：2002-08-20
申请号：US09556287
申请日：2000-04-24
IPC分类号： G01N118
CPC分类号： G01N33/0047 , G01N1/2226 , G01N33/18 , G01N2001/2229 , Y10T436/25375 , Y10T436/25875
摘要： A headspace sampling system monitors materials in wastewater. The headspace sampling system comprises a sample receptacle that can contain a wastewater sample; a sparger chamber vapor column; a sample receptacle cover assembly that connects the sparger chamber vapor column to the sample receptacle; a sparger tube; at least one sensing device; and at least one analytic device. The sparger tube and the sample receptacle define a headspace. The sparger chamber vapor column is in communication with the sample receptacle and is closed by a sparger chamber vapor column cover at a second end that is opposed to the sample receptacle. The sparger tube extends into the sample receptacle and the wastewater sample in the sample receptacle. The sparger tube is connected to a source of inert gas at a first end opposed to the sample receptacle and comprises a dispersion device at an end opposed to the first end. The sensing device is disposed in the headspace sampling system in the headspace. The analytic device in communication with the least one sensing device. Inert gas can flow through the sparger tube into the wastewater sample to separate materials from the wastewater, the sparged materials entering the headspace of the headspace sampling system. The sparged materials are sensed by the sensing device thus providing material signal characteristics, which can be analyzed by the analytic device to determine characteristics of the material from the material signal characteristics and provide information about the characteristics of the material.
摘要翻译： 顶空采样系统监测废水中的物质。 顶空采样系统包括可容纳废水样品的样品容器; 分配器室蒸气柱; 将所述分布器室蒸气柱连接到所述样品容器的样品容器盖组件; 分布管; 至少一个感测装置; 和至少一个分析设备。 分布器管和样品容器定义了顶部空间。 分布器室蒸气柱与样品容器连通，并在与样品容器相对的第二端处由分布器室蒸气柱盖封闭。 分布器管延伸到样品容器和样品容器中的废水样品。 喷射管在与样品容器相对的第一端处连接到惰性气体源，并且在与第一端相对的端部包括分散装置。 感测装置设置在顶部空间采样系统中。 与至少一个感测装置通信的分析装置。 惰性气体可以通过分布管流入废水样品，从废水中分离出材料，喷射材料进入顶空采样系统的顶部空间。 所述感光装置感测到所述喷射材料，从而提供材料信号特性，所述材料信号特性可由所述分析装置分析，以根据所述材料信号特性确定所述材料的特性并提供关于所述材料的特性的信息。
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公开(公告)号：US06485688B1
公开(公告)日：2002-11-26
申请号：US09556288
申请日：2000-04-24
IPC分类号： G01N700
CPC分类号： G01N33/18 , G01N1/2226 , G01N33/0047 , G01N2001/2229
摘要： An on-line sparging sampling system and method sparges polar and non-polar volatile organic compounds from aqueous discharge. The system comprises a network of tubular members that are interconnected to each other to define a fluid passage, in which the network of tubular members comprises an inlet for influent aqueous discharge into the network of tubular members and an outlet for discharge of aqueous discharge from the on-line sparging sampling and monitoring system; a sparger disposed in the network of tubular members, in which the sparger is disposed between the inlet and the outlet of the aqueous discharge so that aqueous discharge flows by the sparger, the sparger providing inert non-reactive gas to the on-line sparging sampling and monitoring system; and at least one analytic device connected to the on-line sparging sampling and monitoring system for analyzing volatile organic compounds in the aqueous discharge. The aqueous discharge forms an aqueous discharge portion and a headspace during flow through the network of tubular members. The sparger provides the inert non-reactive gas to flow through the aqueous discharge portion. The inert non-reactive gas partitions volatile organic compounds from the aqueous discharge portion to the headspace. Thus, polar and non-polar volatile organic compounds can be analyzed by the at least one analytic device.
摘要翻译： 在线喷射取样系统和方法从水性排放物喷射极性和非极性挥发性有机化合物。 该系统包括彼此互连以限定流体通道的管状构件的网络，其中管状构件的网络包括用于从管状构件的网络中进水的排水入口和用于从 在线喷射采样和监测系统; 分布器布置在管状构件的网络中，其中分布器布置在水性排出口的入口和出口之间，使得水分离器由分布器流动，分布器向在线喷射取样提供惰性非反应性气体 监控系统; 以及连接到在线喷射取样和监测系统上的至少一个分析装置，用于分析含水排放物中的挥发性有机化合物。 在通过管状构件的网络的流动期间，水性排出物形成水性排出部分和顶部空间。 喷射器提供惰性非反应性气体流过含水排放部分。 惰性非反应性气体将挥发性有机化合物从含水排放部分分隔成顶部空间。 因此，极性和非极性挥发性有机化合物可以通过至少一种分析装置来分析。
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公开(公告)号：US5996423A
公开(公告)日：1999-12-07
申请号：US167022
申请日：1998-10-06
CPC分类号： G01N1/34 , G01N2001/4016
摘要： An improved method and apparatus for monitoring the concentration of contaminants, including volatile organic compounds, in groundwater is provided comprising a semipermeable membrane defining an inner chamber. The chamber is carried within a mesh protective sleeve of cover to prevent abrasion or puncture of the chamber. The membrane is permeable to contaminants but impermeable to a reference fluid, which is distilled water. The method of sampling comprises placing the semipermeable membrane chamber, which contains the reference fluid, in contact with contaminated groundwater, thereby allowing contaminants to diffuse through the semipermeable membrane.
摘要翻译： 提供了一种改进的用于监测地下水中污染物（包括挥发性有机化合物）浓度的方法和装置，其包括限定内室的半透膜。 该室被放置在盖的网状保护套内，以防止室的磨损或刺穿。 该膜对污染物是可渗透的，但对于作为蒸馏水的参考流体是不可渗透的。 采样方法包括将含有参考流体的半透膜室与污染的地下水接触，从而允许污染物通过半透膜扩散。
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