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I really want to run some experiments growing algae heterotrophically or maybe mixotrophically. I have heard that cell densities as well as lipid content can get to very high levels. But I am having trouble finding good literature [technical or otherwise] to base experiments from. Could someone please help me out, or at least point me in the right direction
http://www.businessgreen.com/bg/news/2194307/drax-aims-to-go-coalfree-after-biomass-subsidy-review - Drax going for a 100% biomass power plant? Is that what this article means?
I've got some spare time during the days and im wondering if someone could give me a tip about what i can do at home to be "green". Talking about energy, cultivations and maybe bulding some sort of self sufficientness in my home. Im open for suggestions!!! and im ready to build! =D
We know that there are attempt to produce and better the fuel from algae. Has any one tried to used algae cakes left after extraction for use in the biomass gasifiers to produce energy?...Is it efficient to do this instead of using the algae mass as feed for humans and animals?
Most of the renewable energy initiatives have huge capital investment and long gestation time than conventional modes. This effectively shunts away most of people to use these alternative methods.
Does providing govt subsidy is the only way to make people to use these technologies ?
Hi there. How many squares should I count in Sedgwick-Rafter chamber and how can I calculate the number of algal cells in 1 ml of sample?
What do you think about it?
hi, anybody has a protocol to purify my culture from cynobacteria contamination?
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I am proposing a new solution to the algae biofuel industry. Using electrical stimulation, I have created biodiesel from algae for $0.96/gallon. Come view this presentation of my project
in Biomass Power Production Biobutanol Biodiesel Algae Fuels Biomass to Liquid Batteries Biodiversity Agri Waste Management Anaerobic Digestion of Waste Bioremediation Batteries for Electric Vehicles Biopolymers and Bioplastics Biotechnology Biomimicry
Currently there are efforts underway to mitigate the emissions from coal firing plants by growing algae biomass which is then converted into fuel on sight or harvested and then exported to refineries. This has been going on for a few years now and this is a great idea and a currently proven and working model, except the fact that some of the originators of this business model failed to make the fuel production from the biomass cost competitive with petroleum extraction and processing. It makes sense because fossil fuels like coal and petroleum are decomposed plant and animal life that…
A new report suggests that up to one fifth of global energy could be provided by biomass (plants) without damaging food production. The report reviews more than 90 global studies. It has been produced by the Technology and Policy Assessment function of the UK Energy Research Centre (UKERC), which addresses key controversies in the energy field, and aims to provide authoritative and accessible reports that set very high standards for rigour and transparency.A debate has been raging about the role biomass could play in the future energy system: some say it could play a major role in fuelling the planet,…
A fifth of global energy could come from biomass without damaging food production - http://www.sciencedaily.com/releases/2011/11/111125161027.htm?utm_source=feedburner
Voting opens for 2011-12 50 Hottest Companies in Bioenergy : Biofuels Digest - http://biofuelsdigest.com/bdigest/2011/10/06/voting-opens-for-2011-12-50-hottest-companies-in-bioenergy/
The world market for centrifuges, clarifiers, dissolved air flotation systems and hydrocyclones will grow from just over $6.3 billion in 2011 to $7.2 billion ... - http://www.environmental-expert.com/news/sedimentation-centrifugation-market-will-grow-in-2015-260358
A look at what is needed for the biomass sector to grow and become a significant power producer across the country.
SWITZERLAND - In an independent report launched by a consortium of industry and non-governmental organisations, IUCN promotes an innovative policy approach to address the risk of indirect land use change through biofuel production. This involves encouraging and rewarding practices that proactively reduce this risk and penalising producers who take no action. - http://www.thebioenergysite.com/news/9710/carrots-and-sticks-for-sustainable-biofuels
What has been hailed as the world's first biomass exchange looks set to be launched in Rotterdam from next month, in response to soaring demand for wood chips ... - http://www.environmental-expert.com/news/worlds-first-biomass-exchange-to-open-in-rotterdam-259259
Berlin’s Senator for Health, Environment and Consumer Protection, Katrin Lompscher; Spandau district councillor Carsten-Michael Röding (Department of Building, Planning and Environmental Protection); and BSR CEO Vera Gade-Butzlaff attended the recent ground-breaking ceremony of a new biogas plant in Berlin being constructed by BSR Ruhleben to provide biomethane to power its fleet of compressed natural gas (CNG) powered refuse collection vehicles. Vera Gade-Butzlaff, CEO of BSR, says the new plant will be capable of displacing 2.5 million litres of diesel per year.
“About half of all collective kilometres of BSR in the future will be accomplished as climate-neutral. This usage also…
A concise and easily understandable white paper on gasification, producer gas and syngas. One of the most frequently asked questions is the difference between producer gas and syngas...that gets well answered in this paper too - http://www.uaex.edu/Other_Areas/publications/PDF/FSA-1051.pdf
OK, there is a lot of PR here, but some data as well...
"Recent third party testing and analysis of the University of Northern British Columbia's (UNBC) Nexterra Biomass Gasification System has concluded that the plant is one of the cleanest biomass facilities operating in North America.
The biomass gasification system was supplied and installed by Nexterra Systems Corp.
The Nexterra system, which provides heat to most buildings on UNBC's Prince George campus, underwent independent testing to assess the emissions for Particulate Matter (PM), Volatile Organic Compounds (VOC), Carbon Monoxide (CO) and Nitrogen Oxides (NOx).
Testing results showed that the Nexterra system generated emission levels that are extremely low for biomass energy systems and are equivalent to natural gas."
Green Energy Applications Guide
Specifying Gas Flow Meters in Green Energy and Pollution Reductions Applications
This guide is intended to provide you with a better understanding of the challenges and the solutions for traditional and alternative energy process controls.
The exhaust heat from a 250 kW biomass gasification power plant can provide (through a VAM) the equivalent of 95 T of refrigeration per hour...
I'm looking for an effective & simple process of converting biomass to electricity for "small, isolated communities" (5- 15 Megawatts).
Challenge #1 - Which is the best algae strain?
The algal are selected based on productivity, and harvest ability, resistance to contamination, tolerance of high oxygen levels and temperature extremes.
Prone to contamination
Low oil content
Low starch content
Do not grow in specific environments
Genetic engineering is unproven for commercial algae fuel production.
Some of the efforts pursued in this area:
The Aquatic Species Program of the NREL (USA) did not specify any one species or strain to be the best, though they did conclude that the diatoms and secondly green algae were the most promising.
Research from Oilgae (www.oilgae.com) reveals that marine strains such as Nanochloropsis.salina, Dunaliella salina seems to be promising strains as far as biofuel production is considered. These strains are hypersaline, can withstand high temperature. Most importantly both these strains have high amounts of lipids as well as carbohydrates, making it suitable for both ethanol and biodiesel production.
Diatoms are responsible for 20% of the total global carbon fixation (Armbrust et al., 2004), suggesting favorable growth rates for biomass production.
Transgenic techniques are well established for several diatom species (Dunahay et al., 1995; Apt et al., 1996; Fischer et al., 1999; Zaslavskaia et al., 2000), and regulatory gene expression control elements have been identified (Poulsen and Kroger, 2005)
Dunaliella salina has several useful characteristics for large-scale biofuels production. It produces abundant lipids (Weldy and Huesemann, 2007), and because it has outstanding salt tolerance (from 0.1 M to near saturation), it can be grown under extreme conditions that could reduce the growth of possible contaminating organisms. The genome sequence of D. salina is currently being determined (estimated size 130 Mb), and transgenic strains have been reported (Li et al., 2007).
Some useful links to understand more about algae strain selection
Carbon dating technique to aid energy from waste
A new use for carbon dating will aid the production of energy from wood and waste, said a UK bio-energy group after British regulatory approval of the new test.
Carbon dating is commonly used to estimate the age of ancient artifacts, exploiting the fact that a particular type of carbon disappears, or decays, at a fixed rate, so that the amount left behind clocks how much time has passed.
A recently adapted technique, developed by the Energy Research Center of the Netherlands, takes monthly samples of the carbon-14 in the smokestack of power plants.
It tallies that with the energy produced to estimate how much carbon dioxide in the flue gas came from burning ancient fossil fuels and how much from greener, younger fuels such as wood, crop waste and other so-called biomass.
The technology is already used in Belgium and the Netherlands, the NNFCC said. It may be a simpler way of disentangling green from coal-fired power than the alternative, which is to measure the amount of biomass and coal fuel fed into a furnace.