Wednesday, January 12, 2011

L.A. -Long Beach to test “seawater scrubber”

An air pollution-reduction device called the “seawater scrubber” will be tested for the first time on a containership visiting Southern California in a $3.4 million project co-sponsored by the ports of Los Angeles and Long Beach and starting in spring 2011, according to a press release.

The technology uses seawater to filter pollutants from ships’ auxiliary engines and boilers where it is expected to reduce a ship’s sulfur oxide emissions by up to 99.9 percent and particulate matter by as much as 85 percent, the ports said.

Funded in part by a $1.65 million grant from the Technology Advancement Program (TAP), a joint initiative of the ports of Los Angeles and Long Beach, the seawater scrubber filtering technology will be tested on an APL container vessel. The entire demonstration project is expected to span 36 months, the ports said.

The seawater scrubber, supplied through a partnership between Bluefield Holdings Inc. and Krystallon, Ltd., reportedly features emission control technology where seawater is used to scrub, or filter, contaminants from a ship’s auxiliary engines and boiler before exiting the exhaust stack of a ship.

Once solid carbon contaminants have been removed, the seawater used during the scrubbing process is supposed to be treated and cleansed before being discharged.

The solid contaminants are to be contained and collected for later disposal.

As part of the three-year project, the ports said the scrubber technology on the APL test vessel would be evaluated over a one-year period during the ship’s calls to the San Pedro Bay ports.

The ports said the scrubber technology is expected to result in air emission reductions of approximately 80-85 percent in diesel particulate matter, 99.9 in sulfur oxide emissions, more than a 90 percent decrease in volatile organic compounds (VOC) and another 10 percent reduction in nitrogen oxide pollutants.

Diesel particulate matter is classified in the state of California as a toxic air contaminant based upon its potential to cause health problems and cancer.

 

 

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