Izindlela ezijwayelekile zokusebenzisa izifudumezi zikagesi ezingaqhumi zingaqhumi yilezi: 1. Izinto zamakhemikhali embonini yamakhemikhali zishiswa ngokufudumeza, ezinye izimpushana zomiswa ngaphansi kwengcindezi ethile, izinqubo zamakhemikhali kanye nokomiswa kwesifutho.2. Ukushisisa nge-Hydrocarbon, okuhlanganisa uwoyela ongahluziwe we-petroleum, uwoyela osindayo, uphethiloli...
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