It’s no secret that the Transocean oil spill is among the largest man-made environmental disasters of all time. Given the impact, the word spill itself is a huge understatement. Gusher or torrent or catastrophe would be more accurate. An early estimate of 5,000 barrels leaking per day appears to have been wildly understated. To quote a June 9 update from the National Oceanic and Atmospheric Administration’s Web site, “… BP hopes to ramp up the collection rate from 15,000 to 28,000 barrels per day over the next week.” The second-largest petroleum disaster in the U.S., the Exxon Valdez wreck, spilled about 250,000 barrels in total.
Even though BP is far from getting the leak under control, the cleanup efforts have been going on for weeks (almost as long as the oil has been leaking, in fact). We have more than a handful of cleanup measures. We can use skimmers to vacuum it up, absorbents and adsorbents to soak it up, controlled fires to burn it up, and detergents and dispersants to break it up. The effectiveness of each of these depends on the oil’s density, the water temperature, weather conditions, and so on.
My particular favorite oil cleaner? Hydrocarbonoclastic bacteria (HCB). That’s right, bacteria. Considering that petroleum contains compounds known to be toxic, it doesn’t seem possible that some bacteria can digest hydrocarbons, but that’s what it amounts to. Most fabricators use hydraulic equipment and already know that some types of bacteria and fungi thrive in hydraulic systems. Considering the heat and pressure developed in most hydraulic systems, these are some hardy life forms—hence the need for maintaining the hydraulic system’s filtration system and adding a biocide on a regular basis. It turns out that they don't just survive in hydraulic systems; some feed off the hydrocarbons in in hydraulic fluid. In a natural environment, they can digest the components in crude oil.
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Canadian Metalworking / Canadian Fabricating & Welding
Canadian Metalworking/Canadian Fabricating & Welding is a trade publication that covers all aspects of the country's metalworking, fabricating & welding industries. We strive to bring you the latest news, products, and insights to keep our readers aware of the latest industry trends.