Polyacrylamide rau cov hlau lead thiab zinc mines

Nyob rau hauv tus txheej txheem ntawm kev ntxuav thiab tau txais txiaj ntsig ntawm cov hlau lead-zinc ore, ntau cov tailings slurry yuav raug tsim. Vim hais tias cov tailings ncaj qha nqa cov pa phem xws li cov hlau hnyav thiab cov khoom siv tau zoo, nws yooj yim ua rau muaj kuab paug rau ib puag ncig. Yog li ntawd, tailings av nkos yuav tsum tau muab pov tseg kom zoo raws sijhawm. Tam sim no, txoj kev kho tseem ceeb yog cov av nkos tailings raug los nag thiab concentration, thiab cov kua ntshiab yog rov qab siv dua. Tom qab cov concentration, cov tailings yog ntxiv rau ib txoj siv lim xovxwm nrog ib tug sludge dewatering tus neeg saib xyuas rau polyacrylamide tshuaj siab pom thiab lub cev qhuav dej. Tom qab lub cev qhuav dej, cov dej noo ntawm cov ncuav mog qab zib lim yog tsawg. , tuaj yeem paub cov kab qhuav, pob zeb qhuav lossis kev siv dav dav.

Tam sim no, cov txheej txheem tseem ceeb ntawm kev kho cov hmoov lead-zinc beneficiation wastewater suav nrog coagulation sedimentation method, oxidation method, adsorption method, biological method, etc., thiab coagulation sedimentation method thiab adsorption method yog dav siv vim lawv cov txheej txheem yooj yim thiab tus nqi qis. Feem ntau siv coagulants yog polyacrylamide thiab polyaluminum chloride.

Tom qab anionic polyacrylamide yaj nyob rau hauv dej, hydrated complex ions yog tsim thaum cov hlau cations thiab heev polar dej molecules undergo hydration. High-them complex ions nrog ntau qib ntawm polymerization yog generated, thiab nyob rau tib lub sij hawm, hydrolysis cov tshuaj tiv thaiv ntawm lub polymer yog tas li mus, ua rau tsawg-them complex ions nrog txawv degrees ntawm polymerization. Los ntawm compression ntawm hluav taws xob ob txheej thiab tus nqi neutralization nyhuv ntawm complex ions nrog tsawg polymerization degree thiab siab nqi, lub adsorption thiab bridging nyhuv ntawm complex ions nrog siab polymerization degree thiab tsawg nqi, thiab cov net trapping nyhuv ntawm hydrated hydroxide nag lossis daus. , nyob rau hauv qhov tsim nyog cov tshuaj tiv thaiv, Ua kom loj dua flocculent alum, adsorb hnyav hlau ions thiab tshem tawm cov khib nyiab thiab lwm yam kuab paug nyob rau hauv cov dej khib nyiab ntawm cov alum, thiab thaum kawg tsim cov precipitate kom ua tiav lub hom phiaj ntawm dej purification!


Post lub sij hawm: Feb-03-2023
WhatsApp Online tham!