3 edition of Species control in large-scale algal biomass production found in the catalog.
Species control in large-scale algal biomass production
Lawrence Berkeley Laboratory.
by Dept. of Energy, Lawrence Berkeley Laboratory, for sale by the National Technical Information Service] in Berkeley, Calif, [Springfield, Va
Written in English
|Statement||J. R. Benemann ... [et al.].|
|Series||SAN ; 7405-77/1, SAN -- 7405-77/1.|
|Contributions||Benemann, John R., United States. Energy Research and Development Administration. Division of Solar Energy.|
|The Physical Object|
|Pagination||x, 205 p. :|
|Number of Pages||205|
Innovative, open-pond micro algal production technologies, based on Clemson’s patented “Controlled Eutrophication Process,” have been developed and evaluated. Recent work focuses on developing lower-cost techniques of recovering algal-generated lipid for biodiesel production from large-scale marine algal culture. First test flights using blends with algae oil are already carried out and expectations by the aviation and other industries are high. On the other hand technical data about performance of cultivation systems, downstream processing, and suitability of algae oil as fuel are still limited. The existing microalgae growing industry mainly produces for the food and feed by:
Davis, R., et al. (). Process Design and Economics for the Production of Algal Biomass. Technical Report NREL/TP Huntley, M.E., et al. () Demonstrated large-scale production of marine microalgae for fuels and feed. 2 Algal Research, 5. Algae (/ ˈ æ l dʒ i, ˈ æ l ɡ i /; singular alga / ˈ æ l ɡ ə /) is an informal term for a large, diverse group of photosynthetic eukaryotic organisms that are not necessarily closely related, and is thus ed organisms range from unicellular microalgae, such as Chlorella and the diatoms, to multicellular forms, such as the giant kelp, a large brown alga which may grow.
Goals / Objectives This project will further develop and demonstrate open-air algal culture providing algal biomass for biofuels and bioenergy production utilizing CO2 and growth nutrients supplied from simultaneous maintenance of water quality supporting intensive aquaculture and animal feed co-production. In the current project biological control of . Background. Diatoms (Bacillariophyta) are photosynthetic unicellular organisms with characteristic silica cell walls (frustules). Over 8, different species are described growing worldwide in lakes and at sea, but according to different authors , extant species are estimated to range betw and , lineage is traditionally divided into two orders: centric diatoms Cited by:
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Get this from a library. Species control in large-scale algal biomass production. [John R Benemann; Lawrence Berkeley Laboratory.; United States. Energy Research and Development Administration. Division of Solar Energy.]. There are two main cultivation systems used for the production of algal biomass: Open Ponds The average volumetric yield for this system lies between and g/L per.
Two methods Species control in large-scale algal biomass production book algal species control are presented in detail--the theory of size selective biomass recycle and the selection and cultivation of nitrogen-fixing blue-green algae.
In the outdoor experiments, circular 3 m/sup 2/ ponds were used and were fed daily settled sewage, were mixed with paddle wheels, and were maintained at a variable. Since the first experiments on outdoor algal biomass production, which took place in the early 's, much progress has been made in the field of pond construction and operation.
One of the main components of the total capital investment is the cost of constructing a large-scale algal production unit. Closed photoautotrophic culture systems are widely used in the aquaculture industry for the production of a range of algal species. The most widely used large-scale (up to about l) system is the ‘big bag’ system (Baynes et al.,Watson, ).
These systems use large sterile plastic bags of about m diameter fitted with a Cited by: ~3,14 High figures for algal biomass production under out- door conditions i.e. up to g m -2 day-~ have been reported, ~5 but such reports are based on. ‘Game-changing’ biotechnology advances (for example the development of ultra-productive algal strains) are needed to achieve sustainable, large-scale algal biofuel production.
The next four chapters in the book deal with specific aspects of technology of direct relevance to biofuel production from algae.
A diverse set of site-specific factors (Figures, and ; Table ) would have to be matched carefully to the cultivation systems used for algal biofuel production if the essential requirements for successful large-scale algal biomass production (suitable land and climate, sustainable water supplies, and sustainable nutrient supplies.
G Economics of Coproduct Production from Large-Scale Algal Biofuels Systems. Coproducing algal biofuels and high-value products has been suggested as a strategy to address the challenge of making algal biofuels economically strategy has proven to be contentious at several levels. Coproducts are strongly linked to the economics and life-cycle assessments (LCAs) of.
Microalgae are a promising feedstock for bioenergy due to higher productivity, flexible growing conditions, and high lipid/polysaccharide content compared to terrestrial biomass. Microalgae can be converted to biogas through anaerobic digestion (AD).
AD is a mature technology with a high energy return on energy invested. Microalgae AD can bypass energy intensive dewatering Cited by: 5. Project Methods The project tasks will include field collection, laboratory studies, bench-scale and outdoor research on algae growth for biofuel production and wastewater remediation, and biological and technical feasibility analysis for large-scale implementation.
The ideal algal species should have consistently high growth rates over ambient temperature. An Overview of Bioethanol Production From Algae. By Didem Özçimen and Benan İnan. biofuel in the world and especially in Brazil and the United States two main producing countries with 62% of the world production.
Large scale manufacture of ethanol as fuel is performed from sugar cane Although it changes with the algal species, they Cited by: CO 2 biofixation was investigated using tubular bioreactors (15 and l) either in the presence of green algae Chlorella vulgaris or Nannochloropsis cultivation was carried out in the following conditions: temperature of 25 °C, inlet-CO 2 of 4 and 8 vol%, and artificial light enhancing photosynthesis.
Higher biofixation were observed in 8 vol% CO 2 Cited by: Algae fuel, algal biofuel, or algal oil is an alternative to liquid fossil fuels that uses algae as its source of energy-rich oils.
Also, algae fuels are an alternative to commonly known biofuel sources, such as corn and sugarcane. When made from seaweed (macroalgae) it can be known as seaweed fuel or seaweed oil. Several companies and government agencies are funding.
Large-scale production of algal biofuels using wastewater treatment HRAPs was first proposed by Oswald and Golueke (). The algal biomass produced and harvested from these wastewater treatment systems could be, and have been, converted through various pathways to biofuels.
A harmful algal bloom (HAB) is an algal bloom that causes negative impacts to other organisms via production of natural toxins, mechanical damage to other organisms, or by other means. The diversity of these HABs make them even harder to manage, and present many issues, especially to threatened coastal areas.
HABs are often associated with large-scale marine mortality. The dominant strains of algae that are commonly found in wastewater ponds, including Euglenia, Scenedesmus, Selenastrum, Chlorella, and Actinastrum, are suggested as candidates for large-scale culturing based on their ability to strip nutrients and organic matter from wastewater, grow rapidly, and produce a significant level of algal oil.
Oil Cited by: 8. Design of a Small Scale Algae Cultivation System to Produce Biodiesel. Microalgae is thus an ideal feedstock for the production of biodiesel. The remaining problem is that it is not currently available to the general public.
This is because it is not File Size: KB. of ultra-productive algal strains) are needed to achieve sustainable, large-scale algal biofuel production. The next four chapters in the book deal with speciﬁ c aspects of technology of direct relevance to biofuel production from algae.
Chapter 6, by Ryan W. Hunt (The University of Georgia, Athens, USA) et al., reviews. Poly-Lactic Acid (PLA): Lactic acid is produced by fermentation of algal biomass is polymerized to produce polylactic acid. Lactic acid and its polymer poly-lactic acid (PLA) are used as a biodegradable alternative and are economically viable alternatives on a large scale.
Majorly brown algae strains are used for PLA production. Algal systems offer a promising solution for wastewater remediation via the uptake of nitrogen and phosphorus species as well as organic pollutants.
The obtained biomass can be utilized for the extraction of value-added products such as lipids, protein, and : Mahmoud Nasr.Algal Biomass In addition to that, access to carbon dioxide and water though microalgae can produce in the presence of saline water,fresh water is needed in a raceway pond system to compensate for the evaporativeloss depending on the wind velocity, air temperature, and humidity level of ature is an important.A greater insight on the control of the interactions between microalgae and other microorganisms, particularly bacteria, should be useful for enhancing the efficiency of microalgal biomass production and associated valuable compounds.
Little attention has been paid to the controlled utilization of microalgae-bacteria consortia. However, the studies of microalgal Cited by: