Skip to main content

Resolving Bottlenecks in Current Algal Wastewater Treatment Paradigms: A Synergistic Combination of Low-Lipid Algal Wastewater Treatment and Hydrothermal Liquefaction for Large-Scale Biofuel Production

Buy Article:

$9.50 plus tax (Refund Policy)

Or sign up for a free trial

A novel system for algal biofuel production was proposed, which integrates algal biomass production, wastewater treatment and hydrothermal liquefaction of biomass to bio-crude oil. A series of algae cultivation and hydrothermal conversion experiments were conducted, confirming several key characteristics of such system: 1) fast-growing low-lipid content algae can be produced using wastewater; 2) biomass produced in the system can be converted into usable biofuel though hydrothermal conversion process with a positive energy balance; 3) the system can leverage the nutrient content in the incoming waste-stream for maximum biomass production and carbon capture that is approximately 10 times the original mass of bio-waste. This process resolves the current major limitations to the economic feasibility of algal biofuels because high-lipid algae are not necessary and the energy for dewatering is minimized by the self-separation of liquefaction oil from wet biomass. Thus, this process would potentially completely replace petroleum imports using only waste inputs and carbon dioxide from the atmosphere. This is a new wastewater and bio-energy paradigm our world needs.
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Keywords: Algae biofuel; hydrothermal liquefaction; nutrient recycling; wastewater treatment

Document Type: Research Article

Publication date: 01 January 2011

More about this publication?
  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

    A subscription to the Proceedings of the Water Environment Federation includes access to most papers presented at the annual WEF Technical Exhibition and Conference (WEFTEC) and other conferences held since 2000. Subscription access begins 12 months after the event and is valid for 12 months from month of purchase. A subscription to the Proceedings of the Water Environment Federation is included in Water Environment Federation (WEF) membership.

    WEF Members: Sign in (right panel) with your IngentaConnect user name and password to receive complimentary access. Access begins 12 months after the conference or event
  • Subscribe to this Title
  • Membership Information
  • About WEF Proceedings
  • WEFTEC Conference Information
  • Learn about the many other WEF member benefits and join today
  • Ingenta Connect is not responsible for the content or availability of external websites
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more