Posted 29 April 2003 - 08:34 PM
A Japanese scientist could get stinking rich with an invention to make electricity from panda dung.
Professor Fumiaki Taguchi, of Tokyo's Kitasato University, began the project five years ago when he asked Ueno Zoo for some of their most popular residents' faeces.
Bacteria inside the panda's belly must be pretty special, he reasoned, to be able to digest tough bamboo leaves and shoots.
His research team selected five micro-organisms among those they found in the droppings - ones that were most efficient at breaking down proteins, fats and could reproduce easily even under high heat.
The team mixed the bacteria with raw garbage for 17 weeks in an industrial waste disposal machine.
The result: only 3kg of waste remained; the rest had turned to water and carbon dioxide.
Taguchi said his company, H2Japan, hoped to create a hydrogen fuel cell and waste disposal unit in one to sell to Japanese food processing companies.
Posted 29 April 2003 - 08:54 PM
NYPA to Install Microturbine at Brooklyn Wastewater Treatment Facility
Tuesday April 29, 2:47 pm ET
New Generating Device Will Harness Waste Gas and Improve Air Quality
NEW YORK--(BUSINESS WIRE)--April 29, 2003--The New York Power Authority (NYPA) Trustees Tuesday authorized the expenditure of up to $700,000 for installation of a small generating unit that will harness the gas by-product from a wastewater treatment plant in Brooklyn to produce electricity while enhancing local air quality.
The up-to 250-kilowatt microturbine will be installed at the New York City Owl's Head Wastewater Treatment Plant, operated by the New York City Department of Environmental Protection (NYCDEP), in the Bay Ridge section of the borough.
"The project that we're planning for Owl's Head shows that current technologies are available for strengthening electricity capacity while improving the quality of the air that we breathe," said Louis P. Ciminelli, NYPA chairman. "Governor Pataki has made these goals top priorities, and the Power Authority has been one of the key organizations being relied upon to accomplish them."
Last January, the Governor directed the New York State Public Service Commission (PSC) to initiate a process that will ensure that one-quarter of the electricity purchased in the state be renewable power, such as wind and solar energy, and waste gas, by the end of the decade. This followed a 2001 executive order that established similarly ambitious goals on the use of renewable power by state agencies.
"The new microturbine that NYPA is planning to install at Owl's Head will allow us to significantly reduce the amount of waste gas that is currently being flared to the atmosphere by the wastewater treatment plant," said Alfonso Lopez, deputy commissioner of the NYCDEP. That will cut its emissions by thousands of pounds per year."
Also known as anaerobic digester gas, or ADG, the waste gas emitted from the sewage treatment process at facilities like Owl's Head is largely comprised of methane and carbon dioxide. Both are considered greenhouse gases that contribute to global warming. These gases are typically flared, or burned, for that reason and odor control.
In 2001, NYPA installed two microturbines at a wastewater treatment facility in the Town of Lewiston in Western New York.
Microturbines are small combustion-turbine generating devices that can be fueled in a number of ways, including ADG, natural gas and liquid fuels.
ADG will also be harnessed by eight fuel cells that NYPA is placing in service later this year at other DEP wastewater treatment facilities in New York City. They'll be identical to a 200-kw fuel cell that the Power Authority installed in 1997 at the Westchester County Wastewater Treatment Plant in Yonkers. It marked the first fuel cell in the Western Hemisphere to use ADG.
Whether it's ADG or some other source of energy, fuel cells are designed to extract hydrogen from whatever fuel they're using, and combine it with the oxygen in the air, to produce electricity.
NYPA meets the full electricity needs of thousands of public facilities in New York City, including those operated by the NYCDEP, saving them millions of dollars a year on their electric bills, compared to what they would have otherwise paid for their cost of power. In addition, they've benefited from energy-efficiency measures by NYPA that, to date, have cut their electric bills by more than $48 million a year, with a corresponding reduction of greenhouse gas emissions of nearly 400 thousand tons.
The New York Power Authority
Michael Saltzman, 914/390-8181
Source: The New York Power Authority
Posted 29 April 2003 - 08:59 PM
Friday, August 16, 2002
By Steven Milloy
West Nile virus has killed seven people in Louisiana this year, two in Mississippi and at least 145 people in six states have been infected. A 12-year-old Wisconsin boy died last week of mosquito-borne encephalitis.
The Centers for Disease Control and Prevention says West Nile virus is in the U.S. to stay. The virus may now be found in 37 states, including every state from Texas to the Atlantic.
CDC Director Julie Gerberding called West Nile virus an "emerging, infectious disease epidemic" that could be spread all the way to the Pacific Coast by birds and mosquitoes.
Louisiana has been monitoring the virus since 2000 and has one of the most active mosquito-control programs in the country -- and yet it is the state with the highest death toll.
It's time to bring back the insecticide DDT.
Currently used pesticides, such as malathion, resmethrin and sumithrin, can be effective in killing mosquitoes but are significantly limited since they don't persist in the environment after spraying.
DDT does. DDT lingers longer and so is more effective in mosquito control.
DDT's persistence, in fact, is often used as an argument against the insecticide. Though the Environmental Protection Agency banned DDT in 1972, three decades later residue of its byproducts may still be found in our bodies and the environment.
So what? No harm, no foul.
There's never been any credible evidence that the low levels of DDT residue in our bodies and the environment have caused any harm.
Even if concern exists over DDT residue persisting in the environment, limiting DDT use solely to mosquito control would ensure that any such buildup would be dramatically lower than in the past.
At the time the EPA banned DDT, approximately 12 million pounds of the insecticide were used annually. But almost 99 percent of that amount was used agriculturally to protect cotton, soybean and peanut crops. Only about 159,000 pounds -- a little more than one percent of the 12 million pounds -- was used for other reasons, including insect control.
So much less DDT would be used today -- if that is something you're worried about compared to potentially fatal mosquito bites.
Claims that mosquitoes eventually would develop resistance to DDT are off-base. While some mosquitoes may over time develop physiological mechanisms of resistance to DDT's lethal effects, it still provokes strong avoidance behavior so mosquitoes spend less time in areas where DDT has been applied. This still reduces mosquito-human contact.
DDT is also less toxic to humans than the alternative chemicals. That should be a boon to those who believe they are sickened by the spraying of the alternatives.
No doubt anti-chemical and environmental activists would wage war on any effort to bring DDT back. Rachel Carson's attack on DDT in her 1962 book Silent Spring, after all, was the springboard of success for modern environmentalism.
But the activists don't like any of the chemicals used currently either.
Tufts University anti-chemical activist-researcher Dr. Sheldon Krimsky said on ABC's World News Tonight, for example: "The chemicals have not been adequately tested for their human health effects. There's a lot of circumstantial evidence that they cause cancer in animal studies. They are hormone disrupters."
It's a lot of balderdash, but more to the point, what alternatives do the enviros offer?
A group called the Safer Pest Control Project is calling on municipalities to abandon insecticides in favor of so-called "ecological methods."
The SPCP wants to monitor mosquito populations by using traps and by checking ponds and sources of water for signs of mosquito larvae.
No problem. Just let me know which mud puddle is my responsibility.
The SPCP wants to eliminate breeding areas by draining areas of stagnant water and aerating ponds.
Perhaps the SPCP has missed the last 30 years of enviro-mania that has succeeded in labeling virtually every standing body of water a "wetland" subject to onerous federal permitting and regulation. By the time needed permits were obtained, mosquito season would be over.
My favorite SPCP recommendation for mosquito control is stocking ornamental ponds with mosquito larvae-eating fish -- but we need to make sure they don't "threaten the ecology of natural areas by competing with native species for food."
The SPCP is ambivalent about vegetable-based horticultural oils which are "effective in killing larvae in water and sinking egg rafts on the surface : [but] can kill beneficial organisms, including some mosquito predators."
"Ecological methods," it seems, is merely a euphemism for saying "Shoo!"
Judicious use of DDT won't harm people or the environment. It will, however, kill mosquitoes -- which is better than mosquitoes killing us.
Steven Milloy is the publisher of JunkScience.com , an adjunct scholar at the Cato Institute and the author of Junk Science Judo: Self-defense Against Health Scares and Scams (Cato Institute, 2001).
Posted 29 April 2003 - 09:30 PM
Posted 30 April 2003 - 07:10 AM
Half time of Malation, depending on temperature and humidity is about 75 seconds.
But the other stuff call him Malation derivative in possetion of the the US Army, half time 30 minutes or so, is killing.
Uncle Ali used the same stuff, cant imagine who gave him the formula.
You remeber what the stuff did to the poor Kurds. At most to their babies and children.
The difference : Used by uncle Ali its a war criminal. I would call it a crime against humanity.
If used by US forces the justification woul sound like that.
COLLATERAL DAMAGE for liberation purpose.
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