The study also suggests that desalination plants should be located away from areas where there are sensitive habitats or intact coastal ecosystems that might be disrupted by the brine discharge.
"They could also use a diffusor system, which is basically a pipe with lots of small holes in it that spreads out the discharge over a larger area so the mixing potential is higher." "The combined discharge is a good approach, but they might need to dilute it more," Paytan said. Currently the plant mixes the brine with cooling water from the power plant before discharging it through a channel extending about 50 meters offshore. Technologies are available that could reduce the impact of the brine on salinity levels at the site, she said. "They did what they were supposed to do, and the fact that it still wasn't sufficient means that somehow the models being used are not good enough," Paytan said. She noted that all the right steps were taken during the 14 years of planning for the Carlsbad Desalination Plant, including modeling of the discharge system to ensure that the brine would be effectively diluted as it mixed with ocean water. It can work if done right, and our study highlights some areas where planning and monitoring can be improved," Paytan said. "Desalination is one solution for addressing our water needs in densely populated coastal areas. Senior author Adina Paytan, a research professor in the Institute of Marine Sciences at UC Santa Cruz, said the study provides valuable information for planners considering where to locate future desalination plants and what discharge technologies to use. The bad news in the study is that the salinity level in the discharge zone exceeded the permitted level, and the salinity plume extended much farther offshore than permitted under the California Ocean Plan. The researchers attributed this to the long history of industrial activities in the area, including cooling water discharge from a power plant adjacent to the desalination plant, which had already perturbed the natural setting. The good news is that they found no significant changes in the organisms living on the seafloor and other biological indicators. Carl's friend was kind of stupid.The results of their study, published January 25 in Water, include good news and bad news. How could he have missed his struggle for mere life moments ago? He now would live his eel life with purpose, with a new found purpose of life.Ĭarl's friend swam up to him, patted him on the back and asked "Want to go for some BBQ tonight?"Ĭarl couldn't believe his ears. Gasping for fresh salt water, Carl made his way over to the edge where he was able to collect his thoughts. With his last gasp of air, and with the last bit of energy, Carl squirmed his way to the surface.įresh oxygen, proper salinity levels were life.
Inches to Carl seemed like millions of miles. He was inches from the top, which meant freedom, which meant breath, which meant oxygen.Ĭarl's friend was inches from death. With every fiber of his strength he tried to reach the surface of the brine pool, but his body wouldn't let him. The sodium chloride had filled his lungs, his eyes, his ears, everything.
#Blue planet deep sea brine sea mod#
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