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Preventing Pollution

Cryogenic Carbon Capture Technology Offers Better Capture at Lower Cost


Cryogenic carbon capture (CCC) is another of the order cialis cialis technologies which received a USDOE development grant as part of the recent ARPA-E program. Making it cheaper and buy pfizer levitra online easier to cialis discount capture carbon from industrial exhaust flues is an important technology, but that's not the whole story with CCC technology.

An abstract for the American Institute of tramadol medication Chemical Engineers explains the outlines of Cryogenic CO2 Capture for Improved Efficiency at Reduced Cost. The work is still developmental, and the DOE grant should help with the further verification and validation of the system. So far, the simulations and initial testing indicate that this is a technology that will be 2 to 4 times as energy efficient as current absorbtion technology. Furthermore, it can be retrofitted onto existing installations fairly easily, which is click now cheap viagra soft not true for absorbtion systems.

Contaminant removal is also improved (sometimes greatly improved) with the cryogenic carbon capture method. Mercury emissions would be reduced from 1 part per million to less than 1 part per billion (a thousandfold improvement in one of the worst problems from current coal plant flues). Sulfur oxides are already well contained by absorbtion methods, and are similarly low with the CCC technology, but nitrogen oxide emissions would be also be negligible, which the absorbtion method cannot do.

The CO2 captured with the CCC process is pure, and should be usable for commercial applications. As stated in teh abstract, "The final products of the process are a liquid CO2 stream at about 150 bar pressure and a gaseous nitrogen stream at atmospheric pressure, both near room temperature. The CCC process exhibits low energy and total costs compared with the current state of the art with high capture efficiency and CO2 purity."

While phasing out the cialis by mail use of coal is certainly an important long range goal, the fact is that coal is going to remain a fuel that will be in use for decades to come. Finding ways to make this a cleaner technology can help improve the environment as other technologies continue to be developed and deployed.


Ontario Takes Further Steps in Phasing Out Coal


The Canadian province of viagra sale online Ontario may have already passed its point of peak coal use, and is now on the downward moving side as it increases its use of renewable energy production. Last week, the provincial government announced that it had permanently closed four more coal-burning power plants in the province.

Electrical generation from coal peaked in 2003, and atmospheric pollution levels are down significantly since that point. According to the Green Energy Act Alliance, citing government figures, sulfur dioxide from power generation sources is down 81 percent, nitrogen oxides are down 77 percent, and carbon dioxide emissions are down 71 percent since the peak in 2003. Coal generation of electricity in Ontario is at its lowest level in nearly half a century. In the same period, more than 8000 megawatts of renewable production have been added to price viagra the province's power supply.

All of Ontario's coal power production is targeted to be eliminated by 2014, and greehouse gasses in 2011 are targeted to be two-thirds lower than they were in 2003.

image: CC 2.0 by Kyle MacKenzie

via: NA Windpower


Oregano Reduces Cows' Methane Emissions by 40%

By now we all know that cows' burps and backside emissions contain methane.  And it's actually a big problem.  Worldwide, these emissions are responsible for 37 percent of human-produced methane.  Amazingly, oregano, an herb found in almost every spice rack in America, is able to greatly reduce the amount of methane produced by cows.

A cow's belches are responsible for the large majority of similar levitra methane they emit, so scientists concentrated on finding a supplement that could reduce the methane produced in the rumen, causing less to be released.  After trying numerous plants, essential oils and other natural supplements, oregano was found to consistently reduce the methane produced without having any negative effects on the cow.

The tests were carried out at Penn State University's dairy barns.  In lactating cows at the barn, the oregano supplement decreased methane emissions by 40 percent.  The cows also produced almost three more pounds of milk a day while being fed the oregano.  Scientists believe that because the cows' bodies weren't expending as much energy producing methane, they used that energy to produce more milk.

Scientists are conducting further trials to identify the active ingredient in oregano that causes the methane reduction in order to produce a purer supplement.

via Live Science



Port of Long Beach Retrofitting Old Tugboats

After debuting the world's first hybrid tugboat in 2009, the Port of Long Beach is partnering again with Foss Maritime Company to retrofit an existing tugboat with hybrid technology.

The ship called the Campbell Foss is a conventional dolphin tugboat assisting ships in the San Pedro Bay. It will be fitted with motor generators, batteries and control systems by Foss at one of their shipyards.  The retrofit should cut 1,340 tons of CO2 emissions and save 100,000 gallons of fuel per year.  Foss and the Port plan to introduce more hybrid tugs over the the best place cheap levitra pills coming years and see more retrofits in the future.

The Port of Long Beach received a $1 million grant from the California Air Resources Board for the retrofit project.

via Press Release


New York Considering Huge Bike Sharing Program

New York City has done a good job in recent years to encourage cycling instead of driving in the city.  Bike lanes and paths have been created and tramadol order pharmacy new policies have been instituted to protect cyclists and pedestrians, but the city may be planning the biggest encouragement yet:  a huge bike-sharing program.

The proposed program, created by Mayor Bloomberg and Transportation Commissioner Janette Sadik-Khan, would start with 10,500 bikes availabe for rent and then quickly spread to 49,000 bikes, similar in scale to the successful Paris Vélib’ program.

Other details like station locations, timing, etc. aren't available yet, but we'll be excitedly awaiting more news.

via CBS News New York

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