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    • 1. 发明授权
    • Determining biodegradability of aspartic acid derivatives, degradable
chelants, uses and compositions
    • 确定天冬氨酸衍生物,可降解螯合剂,用途和组合物的生物降解性
    • US5854060A
    • 1998-12-29
    • US932972
    • 1997-09-18
    • Alan D. Strickland
    • Alan D. Strickland
    • G01N33/50C11D3/33C23C18/40G01N33/00G01N33/24G01N33/48C07D207/00B09B3/00
    • G01N33/48G01N2033/243Y10S423/17
    • Chelants represented by Formula 1b: ##STR1## are determined to be biodegradable when Distance A is from about 3.8.times.10.sup.-10 to about 4.6.times.10.sup.-10 m, Distance B is from about 5.1.times.10.sup.-10 to about 5.9.times.10.sup.-10 m, and Distance C is from about 4.3 to about 6.7.times.10.sup.-10 m). Compounds meeting these criteria are referred to as compounds of Formula 2. In addition to methods of analysis and computer systems therefor, the invention includes a method of chelating a metal ion to form a chelate and biodegrading the chelate comprising step (a) contacting the metal ion with at least one compound of Formula 2 to form a chelate and (b) contacting the resultant chelate or chelant with microbes of the type specified in ASTM 2667-89, ISO 5815 or effective enzymes thereof under conditions and for a time sufficient for biodegradation wherein either (i) the chelate formed in step (a) is formed in a process of removing deposits, scale, or rust; cleaning or washing; controlling metal initiated or catalyzed oxidation or deterioration including spoilage, discoloration, or rancidification; textile treatment; paper making; stabilization of polymers or phosphates; or petroleum drilling, production or recovery; or (ii) the chelate formed in step (a) is before step (b) used as a redox catalyst, in a process of photographic bleaching, bleach-fixing or developing; in electroless deposition or plating; in removing acid or oxide gases including H.sub.2 S, NO.sub.X, SO.sub.X, CO and CO.sub.2 ; or in providing agricultural nutrients.
    • 当距离A为约3.8×10 -10至约4.6×10 -10 m时,由式1b表示的螯合物被确定为可生物降解的,距离B为约5.1x10-10至约5.9x10 -10 m ,距离C为约4.3至约6.7x10 -10 m)。 符合这些标准的化合物被称为式2的化合物。除了分析方法和其计算机系统之外,本发明还包括螯合金属离子以形成螯合物并生物降解螯合物的方法,其包括步骤(a)使金属 与至少一种式2的化合物离子以形成螯合物,和(b)使所得到的螯合物或螯合剂与在ASTM 2667-89,ISO 5815中规定类型的微生物或其有效酶在足以进行生物降解的条件下进行接触 其中(i)步骤(a)中形成的螯合物是在去除沉积物,垢或锈的过程中形成的; 清洗或洗涤; 控制金属引发或催化的氧化或变质,包括腐败,变色或酸化; 纺织品处理; 造纸; 聚合物或磷酸盐的稳定化; 或石油钻探,生产或回收; 或(ii)步骤(b)中形成的螯合物在用作氧化还原催化剂的步骤(b)之前,在照相漂白,漂白固定或显影过程中; 在无电沉积或电镀中; 在除去包括H 2 S,NO x,SO x,CO和CO 2在内的酸或氧化物气体时; 或提供农业营养。
    • 3. 发明申请
    • Method for the Determination of Degradable, Organic Carbon
    • 可降解有机碳的测定方法
    • US20080160628A1
    • 2008-07-03
    • US11885660
    • 2006-02-27
    • Hans-Joachim KupkaRalf Dunsbach
    • Hans-Joachim KupkaRalf Dunsbach
    • G01N33/00
    • G01N31/12G01N2033/243Y10T436/235
    • A method for determining degradable, organic carbon comprises the following steps: the sample is fed to a combustion tube along with a carrier gas; the sample is treated with inert gas in the combustion tube at at least 850° C.; the obtained pyrolysis gas, which contains the AOC, is conducted across a metal oxide as an oxygen donor for oxidizing purposes without adding oxygen; the AOC is oxidized while the metal oxide is reduced; the AOC is measured by means of a detector while the CO2 peak is detected, the carrier gas being switched from inert gas to O2 once the CO2 peak has passed; the RC is burned in the O2 atmosphere while the metal oxide is regenerated; and the RC is measured by means of a detector.
    • 用于测定可降解的有机碳的方法包括以下步骤:将样品与载气一起进料到燃烧管; 样品在燃烧管中至少850℃用惰性气体处理; 所获得的含有AOC的热解气体作为氧供体穿过金属氧化物,用于氧化目的而不加入氧气; 当金属氧化物还原时,AOC被氧化; 当检测到CO 2峰时,通过检测器测量AOC,一旦CO 2 <2>将载气从惰性气体切换到O 2, / SUB>峰已经过去了 在再生金属氧化物的同时,在O 2气氛中燃烧RC; 并且通过检测器测量RC。
    • 5. 发明申请
    • Establishment of Contaminant Degradation Rates is Soils Using Temperature Gradients, Associated Methods, Systems and Devices
    • 污染物降解速率的建立是使用温度梯度,相关方法,系统和设备的土壤
    • US20170023539A1
    • 2017-01-26
    • US15137958
    • 2016-04-25
    • E-Flux, LLC.
    • Julio Zimbron
    • G01N33/24C12Q1/04G01N25/48
    • G01N33/24G01N25/4846G01N2033/243
    • The disclosed apparatus, systems and methods relate to estimating the rate of biodegradation of contaminants in the ground by measuring thermal gradients in the vadose zone where heat is produced by biodegradation reactions, and averaging over a full seasonal period, such as one year or one seasonal cycle, in which the groundwater temperatures and surface temperatures vary in a cyclical manner. Exemplary embodiments correct for the delay required by the heat being produced in the ground to reach the locations where the temperature gradients are measured, and also cancels out the signal noise caused by the changing surface and groundwater temperatures. In further embodiments, a mathematical model is a provided to test the validity of the invention on two example sites.
    • 所公开的装置,系统和方法涉及通过测量通过生物降解反应产生热量的渗流区中的热梯度来估计地下污染物的生物降解速率,并且在整个季节期间平均,例如一年或一个季节 循环,其中地下水温度和表面温度以周期性方式变化。 示例性实施例对于在地面中产生的热量到达测量温度梯度的位置所需的延迟进行校正,并且还消除由变化的表面和地下水温度引起的信号噪声。 在另外的实施例中,提供了数学模型来测试本发明在两个示例站点上的有效性。
    • 9. 发明授权
    • Analytical process to determine biodegradability of chelants containing
a double carboxy containing moiety
    • 用于确定含有双羧基部分的螯合剂的生物降解性的分析方法
    • US5776763A
    • 1998-07-07
    • US607253
    • 1996-03-04
    • Alan D. Strickland
    • Alan D. Strickland
    • G01N33/50C11D3/33C23C18/40G01N33/00G01N33/24G01N33/48C12S13/00C07D207/00
    • G01N33/48G01N2033/243Y10S423/17
    • An analytical process for determining the biodegradability of chelants containing a double carboxyl-containing moiety of specified formula, based on the atomic distances between the carboxyl moieties, is disclosed. According to this process the biodegradability of a chelant can be rapidly determined by determining whether the distance between the carboxyl carbon atoms ("Distance A") falls within the range of from about 3.81.times.10.sup.-10 m to about 3.86.times.10.sup.-10 m; the distance between the carboxyl double bonded oxygen atoms ("Distance B") falls within the range from about 5.13.times.10.sup.-10 to about 5.52.times.10.sup.-10 m; and the distance between the carboxyl hydroxy oxygen atoms ("Distance C") falls within a range of from about 5.28.times.10.sup.- m to about 6.09.times.10.sup.-10 m; and whether the lowest unoccupied molecular orbital (LUMO) is on at least one carboxyl carbon atom of the moiety. If all of the above criteria are met, the compound is predicted to be biodegradable.
    • 公开了一种用于基于羧基部分之间的原子距离来确定含有具有规定式的双羧基部分的螯合剂的生物降解性的分析方法。 根据该方法,通过确定羧基碳原子之间的距离(“距离A”)是否在约3.81×10 -10 m至约3.86×10 -10 m的范围内,可以快速确定螯合剂的生物降解性; 羧基双键氧原子之间的距离(“距离B”)落在约5.13×10-10至约5.52×10-10 m的范围内; 并且羧基羟基氧原子之间的距离(“距离C”)落在约5.28×10-m至约6.09×10 -10 m的范围内; 以及最低未占分子轨道(LUMO)是否在该部分的至少一个羧基碳原子上。 如果满足上述所有标准,则该化合物被预测为可生物降解的。