公开(公告)号：US20170333053A1

公开(公告)日：2017-11-23

申请号：US15529395

申请日：2015-12-01

Applicant: QINGDAO TECHNOLOGY UNIVERSITY

Inventor： Changhe LI ,  Min YANG ,  Yanbin ZHANG ,  Runze LI ,  Jun WANG ,  Yali HOU ,  Yaogang WANG ,  Benkai LI ,  Guotao LIU

IPC: A61B17/16 ,  B24B19/22 ,  B24B55/02 ,  G01L5/00 ,  G01K7/02

CPC classification number: A61B17/1644 ,  A61B17/16 ,  A61B17/1626 ,  A61B2017/1602 ,  A61B2017/1651 ,  B24B19/22 ,  B24B55/02 ,  G01K7/02 ,  G01L5/00

Abstract: A bone surgery grinding experimental device capable of cooling and electrostatic atomization film formation, including a linear three-axis platform capable of moving front, back, left, right, up and down, an electric spindle and a workpiece fixing device, wherein linear three-axis platform includes an X axis structure capable of carrying out left and right movement, Y axis structure capable of carrying out front and back movement and Z axis structure capable of carrying out up and down movement, the workpiece fixing device is fixed on the Y axis structure, and electric spindle is fixed on the Z axis structure and is installed at workpiece fixing device's upper end; a grinding head is installed at the electric spindle's lower end, a grinding cooling device is arranged inside a grinding head handle or on the grinding head's surrounding, and an electrostatic atomization film formation device is arranged on the grinding head's surrounding.

公开(公告)号：US10596606B2

公开(公告)日：2020-03-24

申请号：US16206759

申请日：2018-11-30

Applicant: QINGDAO TECHNOLOGICAL UNIVERSITY

Inventor： Dalei Zhang ,  Yuhao Zhao ,  Yingfei Sun ,  Manqian Wang ,  Xinyu Wang ,  Shuang Wang

IPC: B09C1/00 ,  B09C1/08 ,  B09C1/10 ,  C09K17/48

Abstract: Disclosed is an in-situ detoxification method for a heavily contaminated site by hexavalent chromium. The method includes injecting a chemical reducing agent into a site heavily contaminated with hexavalent chromium, and injecting a chromium soil remediation microbial agent into the site after 0-10 days. The in-situ detoxification method includes: first, in-situ injecting the chemical reducing agent into the soil, preliminarily reducing high-concentration hexavalent chromium such that the hexavalent chromium of high concentration has no toxic effect on the subsequent ecological microbial agent, then in-situ injecting the ecological microbial agent prepared from biogas residue, a carbon source and sulfate into the chromium-containing soil under pressure, and forming a large-scale reducing buffer zone containing sulfate-reducing bacteria and sulfide in a special maintenance manner in the subsurface soil of the site to reduce the hexavalent chromium continuously and effectively.