Mechanism raug tshem tawm ntawm cesium
Overview of Adsorption Cogglomeration thiab Precipitation Treatment
Strengths ntawm peb cesium tshem tawm tshuab
Tus nqi rau cov nyiaj
Ferrocyanide hlau (= tsaus nti xiav npua) yog ua nyob rau Nyiajpoom Teb thiab muaj qhov kom zoo dua yog yooj yim mus nrhiav tau thiab inexpensive. Nickel ferrocyanide, uas yog hu ua lwm cesium adsorbent, yog li 16.20 zaug kim kim, thiab cobalt ferrocyanide yog kim kim. Rau yav tom ntej decontamination kev ua ub no, muaj cov quantities loj quantities ntawm tus nqi tsawg yuav muaj ib tug loj loj kom zoo dua.
Kev tshem tawm yog nyob rau lub sij hawm luv luv
Nyob rau hauv cov kev sib tw thaum ntxov decontamination ntawm ib tug nqi loj uas muaj cov dej uas muaj kaum tawm txhiab tus tons, nws tseem ceeb heev uas yuav tau ua tus decontamination txheej txheem nyob rau hauv ib lub sij hawm luv luv. Lub kaw lus no yuav tshem tau 99.8% ntawm cesium hauv 30 feeb tom qab ntxiv cov dej muaj tus kab mob no. (Lub sij hawm varies nyob ntawm tus concentration, tiam sis tej zaum yuav tau txheej txheem mus txog 20.30 tons ib teev.) Qhov ntxiv filtration txoj kev siv ib zeolite filtration ntauwd yog xam tau tias yuav tsum tau ib lub sij hawm ntev.
Cov khib nyiab uas tsis muaj khib nyiab yuav tsum kho
Vim hais tias cov khib nyiab tom qab decontamination emits radiation (ib nrab-lub neej ntawm radioactive cesium yog 30 xyoo), nws yuav tsum tau tswj raws li xov tooj cua khib nyiab raws li txoj cai. Yog ib qhov kom zoo dua ntawm lub kaw lus no yog tias nws siv cesium rov qab tshuab los sedimentation thiab flocculation, ces muaj tsawg khib nyiab yuav tsum kho tom qab decontamination. Yog zeolite siv rau adsorption filtration, nws yuav ua kom muaj ib tug nqi xov tooj cua khib nyiab.
Security
Cov kev kawm flocculant siv nyob rau hauv lub kaw lus no yog characterized los curing thiab tuav lub xeev ntawm lub sediment uas muaj cesium tom qab kho. Nws tsis dissolve hauv cov dej thawj. Tej nuj nqis ferrocyanide los yog high-kev kawm flocculants yog toxic thiab yuav muaj kev ruaj ntseg siv los ntawm decontamination tswv. Cov aforemented nickel ferrocyanide yog ib tug txhawj xeeb rau toxicity.
Cesium tshem tawm tshuab
Siab concentration paug dej purification ntxuav cov khoom ntawd tsim los ntawm kev tshawb fawb ob leeg nrog rau lub koom haum Tokyo technology yog kom tshem tus radiocaesium 99.8%.
Lub tswv yim txog ntawm qhov kev tshem tawm cesium cov concentrated mas nro cov irrigation nrog dej nkos purification khoom, agricultural pas dej, pas ua luam dej, pas dej.
Yuav tiv thaiv tau ib qho yooj yim kub siab ntxuav downstream paug, cov tswv yim yuav rov qab tau tej khoom nyob rau hauv situ nrog ntshav siab tu kev phem.
