System Design & Operation Requirements ntawmManganese Sand Lim Media:
1. Pretreatment: Required for high concentrations (e.g., Fe >10mg/L, Mn >3mg / L) los yog organically bound complexes. Tej zaum yuav koom nrog aeration lossis ua ntej -oxidation (chlorine, potassium permanganate).
2. Pom tus nqi: Tus qauv tsim tus nqi yog 5-10 meters ib teev.
3. Backwashing: Qhov tseem ceeb. Cov huab cua tsis tu ncua-thiab- dej txhuam yog yuav tsum tau tshem tawm cov sludge, tiv thaiv txaj clogging (cementation), thiab tswj kev ua si.
4. Lub Sijhawm Ripening: Tom qab rov qab ua dua lossis pib pib, lub kaw lus xav tau sijhawm (teev mus rau hnub) rov ua dua - ua cov yeeb yaj kiab ua haujlwm. Cov dej ntws tawm thaum lub sijhawm no yuav tsum tau hloov pauv.
5. Lub txaj qhov tob: feem ntau 800-1200 hli.
