公开(公告)号：US20220113287A1

公开(公告)日：2022-04-14

申请号：US17498203

申请日：2021-10-11

申请人： Srivatsan Mohana Rangan ,  Anca Delgado ,  Rosa Krajmalnik-Brown

发明人： Srivatsan Mohana Rangan ,  Anca Delgado ,  Rosa Krajmalnik-Brown

IPC分类号： G01N30/54 ,  G01N33/18 ,  G01N30/86 ,  G01N30/64

摘要： Methods and systems for the detection and quantification of multiplicity of ionic analytes comprising CrO42−, AsO43−, SeO42−, and ClO4−, and optionally F−, Cl−, NO2−, NO3−, SO42−, using ion chromatography and suppressed ion conductivity. The method comprises loading a sample loop with a sample; injecting the sample from the sample loop into a column with an eluent, wherein the column comprises a guard column and an analytical column; separating, with the column, the injected sample at an effective separation temperature the injected sample in the presence of an organic modifier into a multiplicity of detectable ionic analytes; suppressing, with a suppressor, background signal; and detecting, with a detector, the multiplicity of ionic analytes.

公开(公告)号：US20220177608A1

公开(公告)日：2022-06-09

申请号：US17643377

申请日：2021-12-08

申请人： Anca Delgado ,  Elham Fini ,  Sk Faisal Kabir

发明人： Anca Delgado ,  Elham Fini ,  Sk Faisal Kabir

IPC分类号： C08C19/30 ,  C08L95/00

摘要： Preparing a microbially desulfurized crumb rubber includes combining microorganisms capable of breaking crosslinked sulfur bonds, sulfur-containing crumb rubber, and a salt solution to yield a mixture; combining a buffer with the mixture to yield a buffered mixture, thereby adjusting a pH of the mixture; providing oxygen to the buffered mixture; incubating the buffered mixture for a length of time to yield a microbially desulfurized mixture; combining the microbially desulfurized mixture with bitumen to yield a precursor; and heating the precursor to yield the microbially desulfurized crumb rubber. The microbially desulfurized crumb rubber can be combined with bitumen to yield a modified bitumen. The modified bitumen can be combined with asphalt to yield a modified asphalt.

公开(公告)号：US20140273143A1

公开(公告)日：2014-09-18

申请号：US14204058

申请日：2014-03-11

申请人： Rosa Krajmalnik-Brown ,  Cesar Torres ,  Anca Delgado ,  Sudeep Popat ,  Devyn Fajardo-Williams

发明人： Rosa Krajmalnik-Brown ,  Cesar Torres ,  Anca Delgado ,  Sudeep Popat ,  Devyn Fajardo-Williams

IPC分类号： C12P5/02

CPC分类号： C12P5/026 ,  B09C1/10 ,  C02F3/28 ,  C02F3/2813 ,  C02F3/34 ,  C02F2101/36 ,  Y02E50/343

摘要： Methods, systems, and compositions for growing high density cultures of dechlorinating microorganisms, such as the bacteria Dehalococcoides. Dechlorinating cultures are grown in continuous flow stirred-tank reactors at short hydraulic retention time, resulting in improved batch production. For some cultures, a culture medium including chlorine containing compounds, bicarbonate, and HEPES utilized.

摘要翻译： 用于生长脱盐微生物的高密度培养物的方法，系统和组合物，例如细菌Dehalococcoides。 脱氯培养物在短暂的水力停留时间内在连续流动搅拌釜反应器中生长，从而改进了批量生产。 对于一些培养物，使用包含含氯化合物，碳酸氢盐和HEPES的培养基。