A Nanoparticle-Based Coagulation Method for Cost-Effective
Microalgae Harvesting
Hongjun Liang
Summary: A cost-effective method to harvest microalgae
Description: Microalgea have enormous potential as a renewable source for biofuel. In this
invention we report a method to harvest microalgae that is both cost-effective and efficient.
Current methods (e.g., centrifugation, filtration, flotation, and ultrasound sedimentation) are
limited by their high cost or because they interfere with downstream processes. This method
uses nanoparticles in a unique manner so the microalgae coagulate and are easily and
efficiently harvested. The nanoparticles and other materials can be massed-produced at low
cost, are reusable, and require no post-harvesting processes to be removed.
Potential Areas of Application
 Energy production
 Biofuels
Main Advantages of this Invention
 Cost-effective
 Efficient
 Inert to downstream
ID number: 10005
Depicts particles adhering to microalgae
Intel ectual Property Status: US utility patent pending (application #14/556,675)
Opportunity: We are seeking an exclusive or non-exclusive licensee for marketing,
manufacturing, and sale of this technology.
For more information contact:
William Vaughan, Director of Technology Transfer
Colorado School of Mines, 1500 Illinois Street, Guggenheim Hall Suite 314, Golden, CO 80401
Phone: 303-384-2555; e-mail: wvaughan@mines.edu