公开(公告)号：US20230091009A1

公开(公告)日：2023-03-23

申请号：US17896103

申请日：2022-08-26

Applicant: HARBIN INSTITUTE OF TECHNOLOGY, SHENZHEN

Inventor： LU LU ,  Yongjie Yu ,  Ruijie Yang

IPC: C12N1/20 ,  C12N1/38

Abstract: The present invention relates to a method for promoting growth of gas-fermented microorganisms, comprising the following steps: S1. ultrasonically blending a surfactant and a culture medium, then adding a fluorine-containing alkyl compound to a mixture, and ultrasonically processing the mixture to obtain a perfluorocarbon nanoemulsion; S2. inoculating a bacterial suspension into the perfluorocarbon nanoemulsion, and introducing simultaneously a mixed gas to obtain a precursor; S3. cultivating the precursor in a shaker, wherein the precursor has a diameter of bubbles of 2.0-4.2 mm, and the bubbles have the total volume of less than 40 ml. Under these conditions, the microorganisms have a high utilization rate of the gas, can grow and metabolize more quickly, and can obtain bacteria and products more quickly. Compared with a traditional culture system, addition of a mass transfer material can promote gas mass transfer. Therefore, the gas consumption is small, and the cost is low.

公开(公告)号：US20230285947A1

公开(公告)日：2023-09-14

申请号：US18054152

申请日：2022-11-10

Applicant: HARBIN INSTITUTE OF TECHNOLOGY, SHENZHEN

Inventor： LU LU ,  WEIXIANG CHAO ,  XINYUE HE ,  RUIJIE YANG ,  YONGJIE YU ,  ZHIDA LI ,  CHENGFENG WAN

IPC: B01J31/38 ,  B01J21/06 ,  B01J31/06 ,  B01J35/00 ,  B01J37/06 ,  B01J37/04 ,  B01J37/16 ,  B01J37/34 ,  B01J37/02 ,  C02F1/30 ,  C02F1/72

CPC classification number: B01J31/38 ,  B01J21/063 ,  B01J31/061 ,  B01J35/004 ,  B01J37/06 ,  B01J37/04 ,  B01J37/16 ,  B01J37/343 ,  B01J37/0217 ,  B01J37/0236 ,  C02F1/30 ,  C02F1/725 ,  C02F2305/10 ,  C02F2303/04

Abstract: The present invention belongs to the field of sewage treatment, and relates to a method for preparing a modified natural wood material and an application thereof in sewage treatment. The method for preparing the modified natural wood material includes the following steps: S1. placing wood into a lignin removal solution, after a heating reaction, washing, impregnating, and lyophilizing the wood to obtain removed lignin wood; S2. blending TiO2 with NaBH4, performing low-heat reduction treatment, and then washing and drying to obtain reduced black titanium; S3. dispersing the reduced black titanium ultrasonically in a solvent, then coating dropwise on the removed lignin wood, and drying to obtain a modified natural wood material. The modified natural wood material prepared by the present invention has high disinfection and sterilization performance, and has the ability to remove bio-risk components.