Phosphorus yog lub hauv paus tseem ceeb uas ua rau eutrophication hauv dej. Phosphorus nyob rau hauv cov dej khib nyiab steel yuav tsum raug tshem tawm los ntawm kev siv tshuaj los nag lossis daus, tshuaj lom neeg, lossis lwm yam kev kho dej khib nyiab uas tsim nyog kom ua tau raws li cov qauv kev tso tawm ib puag ncig. Qhov laj thawj tseem ceeb rau cov ntsiab lus phosphorus hauv cov dej khib nyiab yog tias ntau yam tshuaj lom neeg thiab cov khoom siv raw siv hauv cov txheej txheem steel yuav muaj phosphorus ntsiab. Tshwj xeeb, qhov chaw ntawm phosphorus tuaj yeem suav nrog cov hauv qab no:
1. Phosphating kev kho mob: Ua ntej steel ua, qee zaum phosphating kev kho mob yog nqa tawm los txhim kho corrosion kuj thiab txheej adhesion. Cov txheej txheem no yog immersing lub workpiece nyob rau hauv ib tug tov uas muaj phosphate, yog li tsim ib tug phosphate hloov dua siab tshiab zaj duab xis rau saum npoo ntawm cov hlau. Cov phosphate nyob rau hauv cov tshuaj phosphating tej zaum yuav tsis tag nrho reacts los yog nyob twj ywm thaum lub sij hawm ntxuav, uas yuav tawm nrog cov dej khib nyiab.
2. Cov khoom siv raw khoom siv: Cov khoom siv raw siv hauv cov hlau, xws li hlau ore, seem steel, alloy additives, thiab lwm yam., tej zaum yuav muaj phosphorus ntau npaum li cas. Thaum smelting thiab tom qab ua tiav, qhov no ntawm phosphorus yuav yaj thiab nkag mus rau hauv cov dej khib nyiab.
3. Additives thiab auxiliary cov ntaub ntawv: Ntau yam additives, lubricants, corrosion inhibitors, thiab lwm yam. siv nyob rau hauv cov txheej txheem ntau lawm tej zaum yuav muaj phosphorus tebchaw, thiab cov dej khib nyiab generated los ntawm kev ntxuav tom qab siv yuav lawm muaj phosphorus ntsiab.
4. Cov dej txias thiab dej ntxuav: Cov dej uas siv rau cov khoom siv txias los yog cov khoom ua haujlwm tu yuav muaj phosphorus, tshwj xeeb tshaj yog thaum cov dej no tau siv yav dhau los hauv kev sib cuag nrog phosphorus uas muaj cov khoom siv lossis cov kua dej kho mob.
Tshuaj los nag txoj kev yog ib txoj hauv kev siv los tshem tawm phosphorus. Lub hauv paus ntsiab lus ntawm kev ua haujlwm ntawm phosphorus tshem tawm cov neeg ua haujlwm feem ntau yog ua raws cov tshuaj los nag, flocculation, thiab adsorption mechanisms kom tshem tawm cov phosphorus los ntawm dej. Phosphorus tshem tawm cov neeg ua haujlwm muaj kev ua haujlwm zoo flocculation thiab nplua nuj nyob rau hauv cov pab pawg ua haujlwm uas tuaj yeem khi nrog phosphate ions, tsim hydrophobic flocculent precipitates. Nws tuaj yeem txhawb kev sib sau ua ke ntawm cov khoom me me (nrog rau cov phosphates uas tsis muaj kev cuam tshuam) hauv dej kom tsim cov flocs loj dua, uas nyob hauv qab lub ntiajteb txawj nqus, ua kom yooj yim rau cov kua dej sib cais thiab txhim kho phosphorus tshem tawm efficiency ntxiv. Phosphorus tshem tawm cov neeg ua haujlwm muaj kev tshem tawm siab rau cov organic phosphorus, orthophosphate, condensed phosphates, thiab lwm yam.
Thaum xaiv ib tug tsim nyog phosphorus tshem tawm tus neeg sawv cev, yam xws li cov yam ntxwv ntawm cov dej khib nyiab, daim ntawv ntawm phosphorus tam sim no, kev kho scale, thiab cov nqi yuav tsum tau txiav txim siab. Yog tias tsim nyog, hom thiab ntau npaum li cas ntawm tus neeg sawv cev tuaj yeem txiav txim siab los ntawm kev sim tshuaj.