Algae production, harvesting and products

Algae production, harvesting and products

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Description: Micro algae Bio-energy, Sustainable water & waste water treatment, Process control & instrumentation, Micro algal Engineering Research, PROCESS FOR BIO DIESEL PRODUCTION FROM MICRO ALGAE IN SALINE WATER, SEAM BIOTIC & Sapphire Energy, Micro algal species, Genetically modified organisms, Lipid metabolism, Nitrogen starvation, Elucidate mechanism.

 
Author: David Lewis (Fellow) | Visits: 2253 | Page Views: 2860
Domain:  Green Tech Category: Biomass Subcategory: Biofuels 
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Contents:
School of Chemical Engineering

Sunday, March 06, 2011

Algae from production, to harvesting and products
David Lewis PhD CEng FIChemE
Leader Microalgal Engineering Research Group President Asia-Pacific Society of Applied Phycology

Life Impact | The University of Adelaide

School of Chemical Engineering

Acknowledgements
� Murdoch University
� � � � Prof Michael Borowitzka � Project Leader Dr Navid Moheimani - Growth Mr Andreas Isdepsky � Pilot plant Dr Sophie Fong Sing - Selection



University of Adelaide
� � � � � � � A/Prof Peter Ashman - Combustion Dr Stephen Pahl - Extraction Mr Suraj Sathe - Recycling Mr Theo Kalaitzidis - Harvesting Mr Kwong Lee � Cell disruption Mr Andrew Ward � Anaerobic Digestion Mr Quang Dong - Fermentation



SQC Pty Ltd
� � � Mr Ollie Clark Mr Gerald Barker � Project management Dr Nicole Hancox � Analytical extraction Life Impact | The University of Adelaide

Slide 1

School of Chemical Engineering

Research Focus
� Integrating biology with engineering for commercial exploitation � Commercial outcomes � Key Areas 1. Microalgae Bio-energy 2. Sustainable water & wastewater treatment 3. Process control & instrumentation � large scale sensing

Life Impact | The University of Adelaide

Slide 2

School of Chemical Engineering

Background - Microalgae
� � Algae is a general term of convenience for phylogenetically unrelated organisms that undertake photosynthesis and/or possess plastids Over 300,000 species identified, ~10 commercially exploited
� � � Cultures are dilute ~500 mg/l AFDW Very small (3 � 30 m) Beijerinck (1904) studied lipid accumulation in algal during nutrient starvation Fertiliser in the 16th century Food source for the Aztecs until 16th century



Documented for 100's years
� � �

Life Impact | The University of Adelaide

School of Chemical Engineering

Pollution control

Life Impact | The University of Adelaide

School of Chemical Engineering

Nutrition

� �

Provide vitamins: A, B1, B2, B6, niacin and C Rich in iodine, potassium, iron, magnesium and calcium

Life Impact | The University of Adelaide

School of Chemical Engineering

High-value products
� � � Beta-carotene Docosahexaenoic acid and eicosapentaenoic acid Astaxanthin

Life Impact | The University of Adelaide

School of Chemical Engineering

Commercial processes

Life Impact | The University of Adelaide

School of Chemical Engineering

Microalgal Engineering Research Group
� Research Focus � Aquaculture feed � Bioactive compounds � Wastewater treatment and reuse � Bio-energy

SUSTAINABL E PROCESSES!

Life Impact | The University of Adelaide

School of Chemical Engineering

AP6 PROJECT � A FULLY INTEGRATED PROCESS FOR BIODIESEL PRODUCTION FROM MICROALGAE IN SALINE WATER (commenced 2008)
� The aim of the project is to demonstrate unequivocally the technical and economic feasibility of an integrated process for the production of microalgal oils that are suitable as a feedstock for biodiesel production. Partners
� � Prof Michael Borowitzka [Murdoch University, Australia] Mr Ollie Clark, Mr Gerald Barker [SQC Pty Ltd] Dr Bailey Green [Lawrence Berkeley Lab � Berkeley] Rio Tinto Dr Sebastian Thomas [Parrys Nutraceuticals, Chennai India] Mr Mark Jenkins [Z-Filter Pty Ltd] Prof Wei Dong [South China University of Technology, China]





Associates
� � � � �

Life Impact | The University of Adelaide

School of Chemical Engineering

AP6 PROJECT � A FULLY INTEGRATED PROCESS FOR BIODIESEL PRODUCTION FROM MICROALGAE IN SALINE WATER
� A scalable, commercially viable system has yet to emerge (Hu et al 2008) Still correct in 2011!



Life Impact | The University of Adelaide

School of Chemical Engineering

SEAMBIOTIC & Sapphire Energy

Life Impact | The University of Adelaide

School of Chemical Engineering

Background
� Microalgal species should have:
� High growth rate � Environmental tolerance � High lipid production



Various species of microalgae have been shown to contain high percentages of lipids and fatty acids that are suitable for biofuel production For maximal efficiency the optimal extraction technique used prior to transesterification should:
� Not degrade the lipids � Be inexpensive � Free from toxic or reactive compounds � Selective extraction of neutral lipids due to their low degree of saturation and subsequent commercial benefits
Life Impact | The University of Adelaide



School of Chemical Engineering

Background � Bio-energy projects
AP6 Project
Algal cultivation Harvesting Extraction Lipid feedstock Biodiesel production

Gasification /Combustio n

Syngas

Commodity chemicals

Media recycle

Biomass recycle

Fermentation

Ethanol

Glycerol products

Anaerobic digestion

Methan e ARC LP100200616

Wastewater nurients

Muradel Pty Ltd

Algaebased Wastewater Treatment

GO2 Water

Life Impact | The University of Adelaide

School of Chemical Engineering

Karratha - Site for fully Partnership on Clean Development and integrated pilot plant: Asia Pacific Energy and Distributed Generation TaskClimate Renewable Force 2 raceway ponds 3 x 200m plus downstream processing Commissioned Nov 2010

MAJOR ACHEIVEMENTS TO DATE Monocultures maintained and grown continuously in open ponds for 2.5 years at both locations Harvesting system designed, 0.020 kWh.m-3 Single step cell disruption and lipid extraction designed Pilot plant trials underway

University of Adelaide Microalgal Engineering Research Group

Life Impact | The University of Adelaide

School of Chemical Engineering

Growth � MUR230
600.0 500.0 Content pg. cell -1 400.0 300.0 200.0 100.0 0.0 11% 11% 3% 5% 7% 9% 3% 5% 7% 9%

Exponential Total Carbohydrates Total Proteins

Stationary Total Lipids

Life Impact | The University of Adelaide

School of Chemical Engineering

Harvesting

Life Impact | The University of Adelaide

Slide 16

School of Chemical Engineering

Harvesting

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