Saturday, October 8, 2011

First Visit to an Algae Farm

Alganomics is a small algae company in Oak Island, NC. Located on the property of the wastewater treatment plant, the algae is grown in plastic tubes using reuse water from the plant. The operation is still in its experimental stage, like most algae operations around the world. I ache to see this industry take off, but I must be patient.

For its next stage, Alganomics will build open ponds in a nearby park. Open ponds are the cheapest way to grow algae, but the drawback is that the particular strain of algae intended to be grown in the pond can find itself competing with less productive strains that invade the pond. To address this problem, Alganomics will use its plastic tubes to grow the desired algae strain in high concentrations. Then it will inoculate the open ponds with this strain, giving it an advantage over other strains.

Extracting the oil is one of the biggest challenges in algae farming. I had not heard of Alganomics’ method before, which is to simply pressurize the solution of algae and water to crack open the algae cells. Whether this is cost effective remains to be seen. (Another interesting method I know of is that of is that of OriginOIl’s, which uses CO2 to lower the pH of the algae/water solution, then adds radiation to crack the cells.)

Alganomics’ extraction compressor is on a trailer. It can travel to natural ponds all over the region and remove the oil from the algae growing in those ponds. I think the intention is not to make a business out of farming algae in natural ponds, but rather to show farmers that they can set up their own algae production facilities, use manure from their farm as fertilizer, and have their oil harvested periodically by the mobile extractor.

This speaks to the local aspect of algae farming, which is like the local food movement. By reusing and recycling pollution (manure and CO2 for instance) locally, communities can produce their own fuel with little outside input. This would be quite a transformation in how we look at energy. But, the economic feasibility of algae farming has yet to be proven.

The leading project in the world to watch for algae feasibility on a large scale is this one in Australia, where MBD Energy and Origin Oil are working to grow algae on the CO2 emissions from a power plant.

Continue . . .

Monday, October 3, 2011

A Comment

When I comment on a Pajamas Media I have to copy the comment on my own blog just to insure that it appears somewhere. It likely will not pass "moderation" on PJ Media. The following comment was made on this article about how the U.S. will be the "Saudi Arabia" of oil by 2017.

The first big question the shale gas drillers need to answer is, where will they get the fresh water required to do this? Each well requires over 3 million gallons of fresh water. Anyone reading his have drought conditions where they live?

Then, there is this study finding a correlation between high methane levels in drinking water and proximity to fracking wells:

Finally, Small Town America is becoming important. The conservative town of Dish, TX has experienced air and water contamination from fracking. If fracking is coming to your town, as the people of Dish learned, don't be too quick to dismiss environmentalists. You might have to become one yourself.

Continue . . .

Saturday, October 1, 2011

Making Tracks

Deer appear as if they’ve floated in, like cottonwood seeds. How do such creatures with hooves move so silently? These are not the horses for whom your mother demonstrated her love by mounting and riding them for hours on end. They do not whinny or gallop or become spooked by mere treacherous terrain. They arrive without fanfare, minding their business; and when they are startled, they bound into thickets where lumbering horses could not tread, leaving no trace.

You crack open your door and see one. It’s looking at you, its bay-leaf ears cupped in your direction, judging distance. Take a few steps and it might bolt, and you don’t want that. Rare is the yard, you think, that welcomes deer. So you carefully lower yourself each step down to the walkway, then skirt the yard. You're going to get your day timer from your car. The deer continue grazing, affirming your behavior as non-threatening.

At your car you look back to the yard and see that others have joined the first. A small one with spots has taken the lead into the yard. The medium sized one you saw first is just behind it. The third is bigger still, but does not have antlers. So perhaps the buck is remaining concealed somewhere, watching the others to make sure they are grazing safely.

You retrace your deferential path, still hoping not to startle them. There is not just the distance from yourself to the one. Now there is your distance to the other three, and also their own spacing to each other. They’ve triangulated in your yard, staked boundaries like a surveying crew. It’s nature’s turf, a new order descended without a sound.

Back in your house, you shut the door as quietly as you can and describe the incident to a housemate. Later he goes out and returns to say they had gone, returning your yard to its usual boundaries agreed upon by owner and city.

Continue . . .