Ob peb hnub dhau los, txoj haujlwm tseem ceeb ntawm lub tebchaws "863" program "Kev tshawb fawb thiab kev tsim kho thiab ua qauv qhia ntawm cov thev naus laus zis tseem ceeb rau kev kho mob tsis raug mob thiab kev siv cov khoom siv ntawm fluoropgypsum" tau tshaj tawm hauv Wuhan University. Raws li Hou Haobo, tus xibfwb ntawm Lub Tsev Kawm Ntawv ntawm Kev Pabcuam thiab Ib puag ncig Kev Tshawb Fawb ntawm Wuhan University, uas yog tus saib xyuas qhov project, thev naus laus zis tsim los ntawm nws pab pawg tshawb fawb kom deacid fluoride thiab gel coated fluorine fixation tuaj yeem paub txog kev kho mob tsis zoo thiab kev siv peev txheej ntawm fluoropgypsum.
Fluoropgypsum yog cov khoom siv los ntawm hydrogen fluoride ua los ntawm sulfuric acid thiab fluorspar, thiab nws cov khoom tseem ceeb yog calcium sulfate. Fluoropgypsum muaj corrosive sulfuric acid thiab hydrofluoric acid, uas yog ib qho kev pheej hmoo siab ntawm cov khoom pov tseg. Nyob rau tib lub sijhawm, fluoropgypsum kuj yog ib qho khoom siv tsis tshua muaj siv.
Hou Haobo tau hais tias tus nqi ntawm fluoropgypsum pov tseg cov khoom seem hauv Suav teb yog thawj zaug hauv ntiaj teb. Yav dhau los, feem ntau fluoropgypsum tau khaws cia ua ib yam khoom pov tseg tom qab me ntsis neutralization. Kev tso nyiaj ncaj qha tsis tau tsuas yog nyob hauv av, tab sis kuj ua rau cov av thiab dej hauv av ib puag ncig.
Tom qab xyoo ntawm kev tshawb fawb thiab kev loj hlob, cov kws tshawb fawb tau siv fluoroprescent deacidification thiab gel-coated fluoroprescent technology los ua ke fluoropressum nrog lwm cov khoom siv khib nyiab los tsim cov khoom siv ib puag ncig tshiab. Nyob rau hauv cov txheej txheem ntawm kev sib xyaw ua ke, cov tshuaj fluorine muaj kuab heev dhau los ua cov khoom siv, tag nrho ua ke rau hauv cov khoom tshiab. Cov txheej txheem tsim khoom no tuaj yeem txo qhov kev siv cov peev txheej, lub zog thiab "peb qhov pov tseg" emissions, thiab ua tiav qhov kev kho mob tsis zoo thiab kev siv tau zoo thiab muaj txiaj ntsig ntxiv ntawm fluoropgypsum. Qhov kev ua tau zoo ntawm cov khoom siv ib puag ncig tshiab xws li dej txo tus nqi yuav tsum ncav cuag lossis tshaj li cov khoom lag luam txawv teb chaws zoo sib xws, thiab tus nqi yuav raug txo los ntawm ntau dua 30 feem pua. Nws kuj tseem siv tau rau kuv qhov kev sib khi, kev tsim khoom rov qab ntawm kuv qhov chaw cuam tshuam, txhim kho kev kho ntawm pas dej silt thiab lwm yam teb.
Tam sim no, pab pawg tshawb fawb tab tom ua haujlwm nrog cov tuam txhab cuam tshuam los tsim ib qho 50, 000-tuj tshiab cov khoom ua qauv qhia hauv Hebei, thiab 50, 000-square-meter mine tailings filling project hauv Daye, Hubei .
