Page 67: of Maritime Reporter Magazine (March 2017)

The Green Marine Technology Edition

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U.S. Ballast Water Research Opened at Carderock

While the focus on Ballast Water Energy Division, were the principal in- involved in doing the computational ? u- not always going to be in the same kind

Treatment to date has focused primarily vestigators for the project lab. id dynamics calculations by our hydro- of water in the same part of the world, on commercial ships, navy ships also The Ballast Water Research Lab’s set- dynamics people,” Price said. “There’s and are not held to the same limitations. travel the globe and trasport organisms up spans two levels. Water is pumped also all the parts that wastewater man- So we need to be able to ballast every- in ballast water. To address and study from the salt-control tank and the sedi- agement folks were bringing to bear in where, in all conditions, all salinities, this issue, Carderock commissioned a ment-control tanks on the ground ? oor the knowledge of the types of species and all temperatures. It is important to new Ballast Water Research Laboratory to the mix tank on the mezzanine level. you’re going to want to deal with, what ? nd a really robust treatment of ballast at the headquarters in West Bethesda, Eventually, the nursery tanks will be their densities are, sizes and weights, water that doesn’t limit our operations.”

Md. Here engineers and scientists will housed on the mezzanine level where etc. So it’s a complicated problem, and According to Jacobs and Schuh, dif- study the best ways to treat ballast wa- organisms can be added in the mix tank I think we built a unique lab to appro- ferent treatment options have been test- ter for U.S. Navy ships. The new lab and then fed into systems under evalu- priately simulate that.” ed in the past, but the goal is to come up gives researchers the capability to rep- ation. Engineers and scientists can then “With the fact the lab consists of light- with a way to ensure no live organisms licate the salinity and sediment pro? le test the status of the organisms and oth- weight nalgene, or plastic tanks, you are being dumped into bodies of water of any body of water in the world. Ra- er parameters in a sample tank on the can set the lab up in new con? gurations to interfere with the ecosystem of native chel Jacobs, a chemical engineer in the ground ? oor. if you have to so you can simulate the species. “Ultraviolet radiation (UV) is

Wastewater Management Branch at Na- “We are working with [Carderock’s] different con? gurations you might en- one set of treatment technology that has val Surface Warfare Center, Carderock Naval Architecture and Engineering counter in different ship classes,” added been tested, although there have been

Division, is also looking forward to the Department using virtual computational Price. “That makes it an easy module- issues in terms of how effective it is at addition of the nursery, which will give ? uid dynamics to actually see how wa- type approach so that we can do good, killing the organisms versus deactivat- researchers the ability to grow and cul- ter ? ows within speci? c ballast tanks in accurate testing.” ing,” Jacobs said. “The whole point of ture their own organisms. speci? c ship classes,” Jacobs said. “We According to Rita Schuh, the Bal- UV is to basically inactivate the DNA

Jacobs, a graduate of the University will be able to take that and then turn last Water Management Technical Area in the organism so it’s unable to repli- of Maryland with degrees in chemical that into physical scaled models and test Leader and environmental engineer in cate. It’s not an of? cial kill as compared engineering and marine biology and a those models in the lab.” the Wastewater Management Branch, to an inactivation, but then we have to master’s degree in environmental engi- Carderock Director of Research Dr. the new Ballast Water Research Lab ? gure out how to test for that. There are neering from Johns Hopkins University, Jack Price committed the funds for the will provide tools necessary to continue other treatment technologies, in terms is a member of the team which facili- laboratory – which was four years in the to study and innovate ways of treat- of chlorine dioxide and deoxygenation, tated the designing of the Ballast Wa- making – after a proposal modeled from ing ballast water and meeting various and all sorts of different things that have ter Research Lab. She and Toby Cole, a concept Jacobs and the Wastewater regulations. “Unlike major commercial the potentiality for use.” a chemical engineer who was a team Management team were able to come transport ships that have dedicated tran-

Excerpted from an article by member and is now the deputy division up with in just over 24 hours. sit lanes, the U.S. Navy goes all over the

Daniel Daglis on head of Carderock’s Environment and “There was a lot of research that was ocean,” Schuh said. “Navy vessels are

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