Kulamulira zinthu zolimba ndi njira yomwe imagwiritsidwa ntchito m'mabowo omwe amagwiritsa ntchito madzi obowola. Zimaphatikizapo kulekanitsa "zodulidwa" (zinthu zobowoledwa) ndi madzi, zomwe zimathandiza kuti zibwezeretsedwe kapena kutulutsidwa ku chilengedwe.[1]
Dongosolo lowongolera zinthu zolimba limagwira ntchito pobowola zitsime za mafuta ndi gasi mamita 1000-9000 ndipo limakhala ndi matanki ophatikizana 3 mpaka 7. Pansi pa thanki yoyeretsera imagwiritsa ntchito kapangidwe katsopano ka koni, pomwe m'mphepete mwake mumagwiritsa ntchito njira yosakanizira matope yomwe si yosavuta kuyika mchenga. Pofuna kukwaniritsa zofunikira pakubowola, dongosolo lonse lozungulira limatha kulekanitsidwa ndikulumikizidwa pakati pa thanki ndi thanki kapena pakati pa nyumba yosungiramo katundu ndi nyumba yosungiramo katundu, pakati pawo valavu yapansi ya suction manifold imatsegulidwa mosavuta ndipo imatsekedwa bwino ikatsekedwa. Dongosolo lonse lozungulira limapangidwa ndi zida zoyeretsera za level 5, shale shaker mu zida zolumikizira, desand ndi desilt cleaner, vacuum degasser ndi agitator etc. Kugwiritsa ntchito njira yatsopano yoyeretsera matope pobowola mafuta kumachepetsa kutulutsa matope ndi ntchito yodziwikiratu yoteteza chilengedwe.
Dongosolo lowongolera zinthu zolimba limagwiritsidwa ntchito kulekanitsa ndikugwira ntchito ndi zinyalala ndi mchenga ndi zina zotero mumadzi obowola, kusunga magwiridwe antchito amadzi obowola ndikusunga kayendedwe ka madzi obowola. Lili ndi zida zosakaniza zolemera, zida zolowetsera madzi ndi zida zodzaza mankhwala, zomwe zimagwiritsidwa ntchito kukonza magwiridwe antchito amadzi obowola kuti akwaniritse zofunikira pa ntchito yobowola.
Dongosolo lolamulira zinthu zolimba lopangidwa ndiHERIS, ili ndi mawonekedwe a magwiridwe antchito apamwamba, ntchito yodalirika, kuyenda kosavuta komanso kugwiritsa ntchito ndalama zochepa. Magwiridwe antchito ndi mtundu wa makina opangira zinthu zonse zafika pamlingo wapamwamba wa mtundu womwewo wa zinthu zapakhomo.