Tawm tsam keeb kwm yav dhau los ntawm kev sib sib zog nqus thoob ntiaj teb kev tsim kho lub tswv yim, kev lag luam tshuaj phosphate, uas yog lub hauv paus tseem ceeb ntawm kev lag luam txhawb kev ua liaj ua teb, cov ntaub ntawv tshiab, thiab lub zog tshiab, tab tom ua qhov kev hloov pauv loj ntawm kev loj hlob ntsuab thiab qis -carbon. Qhov kev hloov pauv no tsis yog tsuas yog ib qho kev xaiv uas yuav tsum tau zam los daws cov peev txheej thiab ib puag ncig kev txwv, tab sis kuj yog txoj hauv kev tseem ceeb los txhim kho kev lag luam cov kev sib tw tseem ceeb thiab ua tiav siab - kev loj hlob zoo.
Lub ntsiab lus tseem ceeb ntawm kev hloov pauv ntsuab ntawm kev lag luam tshuaj phosphate yog nyob rau hauv kev tsim kho tag nrho cov txiaj ntsig ntawm "peev txheej-tsim- khoom- rov ua dua." Raws li cov qauv ib txwm muaj, tus nqi rov qab ntawm cov peev txheej xws li fluorine thiab iodine cuam tshuam nrog phosphate mining tsawg; lub siab - kub lub zog noj thiab carbon emission siv ntawm ntub- txheej txheem phosphoric acid thiab daj phosphorus ntau lawm; thiab kev pheej hmoo ib puag ncig los ntawm phosphogypsum stockpiling tseem ceeb heev. Kev kov yeej cov kev tsis sib haum xeeb no yuav tsum muaj kev tsim kho thev naus laus zis raws li lub cav, txhawb kev sib sib zog nqus ntawm cov txheej txheem kev tsim kho tshiab thiab kev lag luam ncig.
Nyob rau theem kev siv tau zoo, kev siv thev naus laus zis thev naus laus zis thev naus laus zis thiab cov cuab yeej ntse txheeb xyuas tuaj yeem txhim kho cov phosphate mining rov qab tus nqi thiab kev siv dav dav ntawm cov peev txheej cuam tshuam. Qee qhov kev ua qauv qhia tau ua tiav qhov kev pabcuam fluorine rov qab los ntawm ntau dua 90%, thaum tib lub sijhawm txo cov tailings tiam. Ntawm cov txheej txheem tsim khoom, qhov loj - nplai thiab kaw- voj hloov pauv ntawm cov hluav taws xob daj phosphorus, nrog rau kev siv hluav taws xob pov tseg, tau txo qis kev siv hluav taws xob hauv ib chav tsev los ntawm 15% -20%. Kev taw qhia ntawm cov extractants tshiab thiab membrane sib cais tshuab hauv ntub phosphoric acid extraction txhim kho phosphoric acid purity thaum txo sulfuric acid noj thiab cov dej khib nyiab, yog li txo cov pa phem tsim ntawm qhov chaw.
Kev tsim kho ntawm kev lag luam ncig yog qhov tseem ceeb ntawm kev txhawb nqa rau kev hloov pauv ntsuab. Qhov loj -kev nce qib ntawm kev siv dav dav siv thev naus laus zis rau phosphogypsum, ua ke nrog "kev tsim khoom raws li kev pov tseg" txoj cai txhawb kev txhawb nqa, tau tsav qhov kev siv dav dav los ntawm tsawg dua 40% mus rau ntau dua 60%. Qhov kaw- voj qauv ntawm phosphogypsum- rau-sulfuric acid co- kev tsim khoom nrog cov cement, tshawb hauv qee thaj tsam, tau ua tiav cov khoom siv sulfur, hloov cov khoom pov tseg rau hauv cov ntaub ntawv raw khoom thiab txo kev cuam tshuam ib puag ncig.
Kev sib koom ua ke ntawm kev taw qhia txoj cai thiab kev ua lag luam mechanisms cuam tshuam tsis tu ncua rau hauv kev hloov pauv. Lub "14th Tsib-Xyoo Txoj Kev Npaj rau Kev Txhim Kho Cov Khoom Raw Industries" yog qhov tseem ceeb rau kev hloov pauv ntsuab ntawm phosphate chemical kev lag luam, coj cov lag luam mus rau qis - cov txheej txheem carbon los ntawm kev txhawb nqa se thiab ntsuab credit. Kev nce siab hauv kev thov rau siab -purity hlau phosphate los ntawm cov roj teeb hluav taws xob tshiab hauv qab yog yuam cov tuam txhab lag luam los txhim kho cov khoom purity thiab huv qib ntau lawm, tsim kom muaj lub voj voog zoo ntawm "xav tau-tsav- muab khoom- hloov dua siab tshiab" thiab ua kom lub lag luam muaj txiaj ntsig ntau dua thiab kev hloov pauv ib puag ncig.
Saib mus rau yav tom ntej, kev lag luam tshuaj phosphate yuav tsum tau ntxiv dag zog hla -kev lag luam txuas thiab kev sib koom ua ke, txhawb kev txhim kho ob qho tib si hauv kev siv cov peev txheej thiab cov txiaj ntsig zoo los ntawm tag nrho - saw ntsuab tsim encompassing phosphate mining, tshuaj, lub zog tshiab, thiab cov khoom siv hauv tsev. Tsuas yog los ntawm kev sib koom ua ke cov tswv yim ntsuab rau txhua theem ntawm R&D, kev tsim khoom, thiab daim ntawv thov tuaj yeem ua kom muaj kev ruaj ntseg khoom noj khoom haus thiab cov khoom siv raw khoom thaum muab cov tshuaj suav suav daws rau lub ntiaj teb phosphate -raws li kev hloov pauv kev lag luam, ua kom muaj kev sib koom ua ke - yeej qhov xwm txheej rau kev lag luam, ib puag ncig, thiab cov txiaj ntsig kev sib raug zoo.
