Cov kws tshawb fawb tab tom tsim ib hom tshiab ntawm daim nyias nyias tsom rau desalinating seawater thiab ntes carbon dioxide los ntawm dej hiav txwv ib txhij. Pab pawg, coj los ntawm Assistant xibfwb Katherine Hornbostel los ntawm Swanson Tsev Kawm Ntawv ntawm Engineering ntawm University of Pittsburgh, tau txais $ 1.4 lab nyiaj pab los ntawm National Oceanic thiab Atmospheric Administration (NOAA) thiab Office of Naval Research (ONR) los tsim qhov tshiab no. daim nyias nyias.
Cov kws tshawb fawb tab tom tshawb nrhiav kev siv cov tshuaj tshwj xeeb hauv cov txheej txheem desalination, uas tuaj yeem tso cov pa roj carbon dioxide zoo, ua kom nws ntes, khaws cia, lossis rov siv dua. Pab pawg, uas suav nrog cov tswv cuab los ntawm Arizona State University, University of California, Irvine, thiab National Renewable Energy Laboratory (NREL), lub hom phiaj los ua kom pom qhov ua tau ntawm txoj hauv kev no.
"Kev tshem tawm cov pa roj carbon dioxide tawm hauv dej hiav txwv yog qhov nyuaj, tab sis kev siv cov thev naus laus zis zoo sib xws rau cov dej hiav txwv desalination tuaj yeem ua rau nws siv tau ntau dua," Hornbostel hais. "Peb tab tom nrhiav rau lwm txoj kev daws teeb meem uas yog ob qho tib si siv hluav taws xob thiab siv tau zoo."
Feem ntau txoj hauv kev rau kev ntes dej hiav txwv ncaj qha nyob ntawm electrochemical hlwb. Thaum muaj txiaj ntsig zoo hauv kev tshem tawm cov pa roj carbon dioxide, cov txheej txheem no yog lub zog siv zog thiab kim. Hornbostel thiab nws pab neeg ua kom pom tseeb tias los ntawm txheej txheej desalination daim nyias nyias nrog cov tshuaj tshwj xeeb, carbon dioxide tuaj yeem tso tawm tau zoo, ntes, khaws cia, lossis rov siv dua, zoo ib yam li cov txheej txheem qhib cov dej haus carbonated.
Piv nrog rau ntau txoj hauv kev uas cuam tshuam nrog electrochemically cais cov dej hiav txwv nkag mus rau hauv alkaline thiab acidic kwj, pab pawg neeg txoj hauv kev yuav tsum muaj hluav taws xob tsawg dua rau kev tshem tawm carbon dioxide.
Txawm li cas los xij, pab pawg thawj zaug yuav tsum tau txiav txim siab seb lub membrane twg yog qhov zoo tshaj plaws rau cov txheej txheem bubbling. Lawv yuav kawm rov qab osmosis (RO) thiab nanofiltration (NF) daim nyias nyias. Nanofiltration membranes muaj cov kev xav tau qis zog tab sis qis dua cov pa roj carbon dioxide tshem tawm, thaum RO daim nyias nyias muaj cov pa roj carbon dioxide tshem tawm ntau dua tab sis xav tau lub zog ntau dua.
"Peb npaj yuav ua qhov kev ntsuam xyuas techno-economic uas yuav tso cai rau peb los sib piv ob txoj kev xaiv no thiab txiav txim siab seb qhov twg yog qhov muaj peev xwm loj dua li qhov chaw sim thiab hauv cov dej hiav txwv desalination tiag tiag," hais Hornbostel.
Qhov project ob xyoos no, sib txuas cov dej hiav txwv desalination nrog ib daim nyias nyias tshiab rau kev tshem tawm cov pa roj carbon dioxide hauv dej hiav txwv, kuj tau koom tes los ntawm xibfwb Matthew Green los ntawm Arizona State University, xibfwb Jenny Yang los ntawm University of California, Irvine, Dr. Abhishek Roy los ntawm NREL , thiab Dr. Mou Paul los ntawm National Renewable Energy Laboratory.
Lub hom phiaj ntawm qhov kev tshawb fawb tshiab no yog los tsim cov cuab yeej siv tau zoo uas hais txog ob qho tib si seawater desalination thiab carbon dioxide capture, muab cov kev daws teeb meem rau tshem tawm ntsev thiab carbon los ntawm dej hiav txwv.
