Zamakono
Zipatso chipolopolo zochokera kapena kokonati chipolopolo zochokera granular adamulowetsa mpweya ndi njira thupi.
Makhalidwe
Mndandanda wa carbon activated uli ndi liwiro lapamwamba la kutsitsa golide ndi elution, kukana koyenera kwa makina a attrition.