Green Chemistry: Underused Drilling Practices Could Avoid Pollution

Tuesday, December 15th, 2009

A drill bit is a cutting or boring element used in drilling oil and natural gas wells. The bit consists of the cutting elements and the circulating element. The circulating element permits the passage of drilling fluid and utilizes the hydraulic force of the fluid stream to improve drilling rates. As environmental concerns threaten to derail natural gas drilling projects across the country, the energy industry has developed innovative ways to make it easier to exploit the nation’s reserves without polluting air and drinking water.

Energy companies have figured out how to drill wells with fewer toxic chemicals, enclose wastewater so it can’t contaminate streams and groundwater, and sharply curb emissions from everything from truck traffic to leaky gas well valves. Some of their techniques also make good business sense because they boost productivity and ultimately save the industry money — $10,000 per well in some cases.

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Tiny Bubbles Used to Clean Oil-Contaminated Water and Soil

Saturday, November 21st, 2009

oil-streetEven small amounts of oil leave a fluorescent sheen on polluted water. This oil sheen is difficult to remove—until now. According to a recently published article in the journal Chemosphere, an inexpensive new method has been developed to remove oil sheen by repeatedly pressurizing and depressurizing ozone gas, creating microscopic bubbles that attack the oil so it can be removed by sand filters.

“We are not trying to treat the entire hydrocarbon content in the water — to turn it into carbon dioxide and water — but we are converting it into a form that can be retained by sand filtration, which is a conventional and economical process,” says lead author Andy Hong, University of Utah professor of civil and environmental engineering.

Hong says the technology — for which patents are pending — could be used to clean a variety of pollutants in water and soil, including:

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Wastewater: Dow Chemical Licenses BioPetroClean’s Tech To Gobble Up Oil

Sunday, September 20th, 2009

biopetroclean-DOW-oil-refineryEven the CEO was initially skeptical about BioPetroClean’s simple and effective solution for cleaning up industrial wastewater, but it works; and now Dow Chemicals is onboard.

The idea that microscopic bacteria could cheaply and efficiently cleanse oceans of industrial wastewater may seem far-fetched. But it is just this premise that launched BioPetroClean, a Texas-based cleantech company with research-and-development facilities in Tel Aviv.

In fact, the technology is so effective that $57.5 billion industry giant Dow Chemical just announced a global commercial agreement whereby it will market and distribute the Dow-BPC Water Treatment System internationally. The agreement includes exclusivity across significant oil drilling and refining markets.

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Green Law: Supreme Court Decision on Wastewater Dumping

Friday, June 26th, 2009

lower-slate-lake_smSupreme Court watchers are hitting the refresh button often as the term wraps up and decisions are released in bunches.

Monday saw a significant ruling for the clean-tech observer as the Supreme Court ruled 6-3 to uphold an Army Corps of Engineers ruling that allowed an Alaskan mining company to dump slurry waste into a nearby lake as a permanent disposal method.

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Wastewater Treatment: The Toxic Avenger in your toilet

Monday, April 20th, 2009

vaticanus, via flickr

You’ve probably heard the reports about drugs in our water that aren’t removed by traditional wastewater treatment.

Maybe you’ve heard about the harmful byproducts spawned when chlorine is used in the water treatment process.

Here’s a new one: Super bacteria that are actually being created (and made stronger) in the wastewater treatment process. It goes back, in part, to the common use of antibiotics to treat routine illnesses. Remember the last time you were sick and went to the doctor? Did you leave with a prescription for Z-Pac?

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Climate Change: Time to get the muck out

Thursday, April 16th, 2009

This is kind of backward. States have banned phosphorus fertilizers for lawns, because the phosphorus runs off the landscape, into rivers and streams, and breeds algal blooms and muck. Ever visited a beach visited by muck? It’s not a vacation.

But here comes some new warnings: Climate change can cause more phosphorus to leach from the soil. I can see the conflicts now: People who want thicker lawns vs. people who want to relax in the sweet, sweet sugar sand.

The argument for phosphorus bans has been the need to keep beaches free of dead algae, and the fact that soil in places like Michigan already contains enough natural phosphorus to grow a decent lawn.

But climate change predictions include more heavy rainstorms, with soil being rewetted more frequently. Apparently, this rewetting means an increase in phosphorus that leaches from the soil and into our waterways.

And this is about more than the beach.

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