Polyacrylamide ya migodi ya lead ndi zinki

Pakutsuka ndi kupindula kwa lead-zinc ore, kuchuluka kwa ma tailings slurry kumapangidwa. Chifukwa tailings mwachindunji kunyamula zowononga monga heavy metal ndi zotsalira beneficiation agents, n'zosavuta kuchititsa kuipitsa kwa chilengedwe. Chifukwa chake, matope a tailings ayenera kutayidwa bwino munthawi yake. Pakalipano, njira yayikulu yothandizira ndi yakuti matope a ma tailings amakumana ndi mvula ndi ndende, ndipo madzi omveka bwino amagwiritsidwanso ntchito. Pambuyo ndende, ndi tailings anawonjezera lamba fyuluta atolankhani ndi sludge dewatering wothandizila kwa polyacrylamide mankhwala kuthamanga kusefera ndi kuchepa madzi m'thupi. Pambuyo pa kutaya madzi m'thupi, chinyezi cha keke ya fyuluta chimakhala chochepa. , amatha kuzindikira mzere wouma, mulu wouma kapena kugwiritsa ntchito mokwanira.

Pakali pano, njira zazikulu zochizira madzi otayira a lead-zinc beneficiation ndi monga njira ya coagulation sedimentation, oxidation method, adsorption method, biological method, etc., and coagulation sedimentation method and adsorption method amagwiritsidwa ntchito kwambiri chifukwa cha njira yawo yosavuta komanso yotsika mtengo. Ambiri ntchito coagulants ndi polyacrylamide ndi polyaluminium kolorayidi.

Pambuyo anionic Polyacrylamide ndi kusungunuka m'madzi, hydrated zovuta ayoni amapangidwa pamene zitsulo cations ndi kwambiri polar madzi mamolekyu akukumana hydration. High-charged zovuta ayoni ndi madigiri osiyana polymerization amapangidwa, ndipo pa nthawi yomweyo, hydrolysis anachita wa polima nthawi zonse zikuchitika, chifukwa otsika-charged zovuta ayoni ndi madigiri osiyana polymerization. Kupyolera mu psinjika ya magetsi awiri wosanjikiza ndi mlandu neutralization zotsatira za ayoni zovuta ndi digiri otsika polymerization ndi mkulu mlandu, ndi adsorption ndi bridging zotsatira za ayoni zovuta ndi digiri mkulu polymerization ndi mtengo wotsika, ndi ukonde msampha zotsatira za hydrated hydroxide mpweya. , pansi pazikhalidwe zoyenera, Pangani alum yokulirapo, ikani ma ayoni achitsulo cholemera ndi zolimba zoyimitsidwa ndi zoipitsa zina m'madzi onyansa pamwamba pa alum, ndipo pomaliza pangani madzi kuti mukwaniritse cholinga choyeretsa madzi!


Nthawi yotumiza: Feb-03-2023
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