 |
|
|
| P.O. Box 500, Bristol, New Hampshire 03222 ♦ 603-744-6400 ♦ fax 603-744-3700 |
|
|
| |
| |
|
|
The Results Speak For Themselves
Case History:
JSP Oil Booms prove most effective in
containing Alaska oil spill.
|
|
|
The call came in at midnight on March 30, 1989, during the Exxon Valdez oil spill. It was the city manager of Seward, Alaska, on Resurrection Bay. He said he had heard of JPS' reputation for results. He asked if the company had any of its Oil Booms in stock, and could it be shipped immediately, along with an installation training crew. The answer was "Yes." Within 24 hours, JPS had 20,000 feet of 36' Oil Boom on site, and a highly skilled supervisor who quickly trained crews to deploy the boom.
After two weeks, the Seward official was so grateful for the result that he issued a proclamation to JPS for helping "to protect the surrounding key salmon-producing streams from oil."
|
|
|
Case History:
JPS Diversion Curtains curtail rapid
movement of effluent for large paper
manufacturer.
The client was a totally integrated wood products complex that produces over 1,100 tons of kraft linerboard per day and dimension grade lumber in excess of 55,000,000 board feet per year. Waste effluent enters a secondary natural oxidation and stabilization basin with 300 surface acres, an average depth of 11.8 feet, and theoretical retention time of 100 days.
The company's engineers wanted to install a baffle curtain across the inlet portion to block the initial rapid movement of effluent across the upper portion and to stimulate vertical back-mixing beyond the curtain, thus involving the lower portion of the basin in the anaerobic process.
|
|
|
|
|
JPS surveyed the site and then fabricated and installed a JPS Heavy Duty Diversion Curtain that was 2,200 feet long by 15 feet high, with the bottom contoured to the shape of the basin floor. The curtain had a two foot by 1,000 foot opening along the middle bottom portion, with 600 foot lengths at either bank shaped to the floor, so that effluent flow would exit at the bottom level.
Results:
- Peak concentration was moved back over five times, from 24 hours to 150 hours.
- Average retention time was increased by 25%, from 55 days to 69 days.
- Lithium injection test improved ten times, from 27% leakage prior to installation to 2.7% after installation.
- Temperature measurements showed high stratification upstream of the new curtain and little stratification in the main body.
- Hydraulics were dramatically improved, as evidenced in a tracer study that showed considerable back-mixing in the large basin.
Case History:
JPS Diversion Curtains ensure future
generations enjoy the reefs of
Marsh Harbour, Abaco, Bahamas.
On behalf of the Board of Friends of the Environment, and all of the people of Abaco, I want to thank you for taking the time to come to Abaco and make sure the new moorings were installed, and the old moorings were found and maintained. I cannot tell you how much we appreciate all of the time and effort that it took, especially after all of the weather delays. The work JPS did will help ensure that future generations will be able to enjoy Abaco's reefs, just as we do today.
Please pass along our thanks to Karl, Adam and Jeff. It was truly a pleasure to have all of you here and we look forward to your next visit.
Lory Kenyon
Board of Friends of the Environment
|
|
|
| |
|
|
|
