公开(公告)号：US5006250A

公开(公告)日：1991-04-09

申请号：US128664

申请日：1987-12-04

申请人： Paul V. Roberts ,  Gary D. Hopkins ,  Lewis Semprini ,  Perry L. McCarty ,  Douglas M. MacKay

发明人： Paul V. Roberts ,  Gary D. Hopkins ,  Lewis Semprini ,  Perry L. McCarty ,  Douglas M. MacKay

IPC分类号： B09C1/00 ,  B09C1/10 ,  C02F3/12 ,  E21B43/00 ,  E21B47/10

CPC分类号： C02F3/1231 ,  B09C1/002 ,  B09C1/10 ,  E21B43/00 ,  E21B47/1015 ,  B09C2101/00 ,  C02F2103/06 ,  Y02W10/15 ,  Y10S210/908

摘要： The present invention is directed to a method for purifying an underground water supply containing halogenated aliphatic compounds by in-situ biodegradation of said compounds, comprising injecting water into an aquifer zone, the injected water containing an electron donor capable of being utilized by an indigenous population of microorganisms contained in the groundwater supply as a primary growth substrate, and an electron acceptor for oxidation of the primary substrate, by separate addition of electron donor and electron acceptor temporally or spatially to stimulate growth of the microorganisms and to distribute them throughout the aquifer zone to cause in-situ degradation of the halogenated aliphatic compounds by metabolic activity of the microorganisms.

摘要翻译： 本发明涉及一种通过原位生物降解所述化合物来净化含有卤代脂族化合物的地下水源的方法，包括将水注入到含水层中，所述注入的水含有可被土着人群利用的电子给体 作为主要生长基质的地下水供应中包含的微生物和用于氧化初级底物的电子受体，通过在时间或空间上分别加入电子给体和电子受体以刺激微生物的生长并将其分布在整个含水层中 通过微生物的代谢活性引起卤代脂族化合物的原位降解。

公开(公告)号：US20120028321A1

公开(公告)日：2012-02-02

申请号：US12901343

申请日：2010-10-08

申请人： Craig S. Criddle ,  Wei-Min Wu ,  Gary D. Hopkins ,  Eric R. Sundstrom

发明人： Craig S. Criddle ,  Wei-Min Wu ,  Gary D. Hopkins ,  Eric R. Sundstrom

IPC分类号： C12P7/42

CPC分类号： C12P7/625

摘要： Production of polyhydroxyalkanoates (PHAs) is performed by delivering substrates such as methane in gas phase during a high solids fermentation. Microorganisms are grown under balanced conditions, then gas phase substrates are delivered under unbalanced conditions to produce PHA granules inside the cells. The cells containing these granules are lysed and the bioplastic powder recovered. The balanced phase growth may occur in submerged liquid cultures or attached as biofilms to a surface.

摘要翻译： 聚羟基链烷酸酯（PHA）的生产通过在高固体发酵过程中以气相递送诸如甲烷的基质来进行。 微生物在平衡条件下生长，然后气相底物在不平衡条件下输送以在细胞内产生PHA颗粒。 将含有这些颗粒的细胞裂解并回收生物塑料粉末。 平衡相生长可能发生在浸没液体培养物中或作为生物膜附着到表面。