PRETREATMENT DRUM & HEATING nigice cyibikoresho bikoreshwa munganda zinganda kugirango bitangire ibikoresho bibisi. Mubisanzwe bigizwe no guhinduranya ingunguru hamwe na sisitemu yo gushyushya. Mugihe cyo gukora, ibikoresho fatizo bishyirwa mubizunguruka mbere yo kuvura hanyuma bigashyuha na sisitemu yo gushyushya. Ibi bifasha guhindura imiterere yumubiri cyangwa imiti yibikoresho fatizo, byoroshye kubyitwaramo mugihe cyibikorwa byakurikiyeho. Ubu bwoko bwibikoresho bukoreshwa mubukorikori, gutunganya ibiryo, imiti nizindi nganda kugirango bongere umusaruro nubuziranenge bwibicuruzwa.