公开(公告)号：US09150445B2

公开(公告)日：2015-10-06

申请号：US13206327

申请日：2011-08-09

申请人： Hsin-Ying Liu ,  Michael Wayne Falk, Jr.

发明人： Hsin-Ying Liu ,  Michael Wayne Falk, Jr.

IPC分类号： C02F3/12 ,  C12P7/62 ,  C02F3/34

CPC分类号： C02F3/12 ,  C02F3/1221 ,  C02F3/1263 ,  C02F3/34 ,  C02F2209/001 ,  C02F2209/10 ,  C12P7/42 ,  C12P7/625 ,  Y02W10/15 ,  Y02W10/45

摘要： A wastewater treatment process elicits microorganisms to convert a waste stream/organic resource to intracellular biopolymer polyhydroxyalkanoate (PHA). The process includes (i) waste stream/organic resource composition feed criteria, (ii) configuration coupled with operational parameters, and (iii) PHA-laden biomass separation and stabilization. A waste stream/organic resource capable of producing enhanced levels of PHA may be selected based on a combination of criteria, which may include short chain fatty acid concentration, protein concentration, polysaccharides concentration, and total suspended solids concentration. The waste stream is introduced into an aeration basin upon a specific configuration and operated under various parameter combinations for selecting/enriching microorganisms capable of producing PHA. The PHA-laden biomass is separated and stabilized for downstream PHA related product beneficial uses. The present process achieves concurrent wastewater treatment and PHA production, where PHA level (of more than 10% on a cell-weight basis) otherwise could not be obtained.

摘要翻译： 废水处理过程引起微生物将废物流/有机物质转化为细胞内生物聚合物聚羟基链烷酸酯（PHA）。 该过程包括（i）废物流/有机资源组合物进料标准，（ii）配置与操作参数，以及（iii）含PHA的生物质分离和稳定化。 可以基于标准的组合来选择能够产生增强的PHA水平的废物流/有机资源，其可以包括短链脂肪酸浓度，蛋白质浓度，多糖浓度和总悬浮固体浓度。 废物流根据特定的构型被引入曝气池并在各种参数组合下操作，用于选择/富集能够生产PHA的微生物。 PHA负载生物质被分离并稳定下游PHA相关产品的有益用途。 本方法实现了同时进行的废水处理和PHA生产，其中PHA水平（以细胞重量计超过10％）不能获得。

公开(公告)号：US10807893B2

公开(公告)日：2020-10-20

申请号：US15966978

申请日：2018-04-30

申请人： Hsinying Liu ,  Michael Wayne Falk, Jr.

发明人： Hsinying Liu ,  Michael Wayne Falk, Jr.

IPC分类号： C02F3/12 ,  C12P7/42 ,  C12P7/62 ,  C02F3/34

摘要： A wastewater treatment process elicits microorganisms to convert a waste stream/organic resource to intracellular biopolymer polyhydroxyalkanoate (PHA). The process includes (i) waste stream/organic resource composition feed criteria, (ii) configuration coupled with operational parameters, and (iii) PHA-laden biomass separation and stabilization. A waste stream/organic resource capable of producing enhanced levels of PHA may be selected based on a combination of criteria, which may include short chain fatty acid concentration, protein concentration, polysaccharides concentration, and total suspended solids concentration. The waste stream is introduced into an aeration basin or sequencing batch reactor upon a specific configuration and operated under various parameter combinations for selecting/enriching microorganisms capable of producing PHA. The PHA-laden biomass is separated and stabilized for downstream PHA related product beneficial uses. The present process achieves concurrent wastewater treatment and PHA production, where PHA level (of more than 10% on a cell-weight basis) otherwise could not be obtained.