Amanzi ayisisekelo sokuphila, futhi kukhulu ukuthi amanzi esetshenziswa asihlanze. Ngamanye amazwi, amanzi okuvela emizini noma emilolweni inazo izinto ezimbi nezintonga ezincinci. Lokhu kubizwa ngokuthi yi-sediment. Uma sithatha lokhu, akuyiyo yinkambo yokuphila. Kodwa kufuneka sibone indlela yokuhlanzela. Indlela eyodwa yokuqondisa kukusebenzisa i-sedimentation tank. Yindlela enobuchwepheshe ekuseniwe ngayo ukuthi umlando uhlwanze amanzi, futhi yisipart esikhulu sokukhula amanzi okuthatha ngokuphelele abantu. Isikolo sikaDinghui sibonakala ukuthi amanzi okuhlanzwa kuyisisekelo, futhi sizamekela ukwenza lezi zinhlelo zisewuke.
I-Sedimentation Tank yini yokuhlanzela amanzi?
Bhaliqonda izilwane ezinkulu noma izitanki apho amanzi ayadlula ngokushisana. Lokhu ngu- sedimentation tank, kodwa kwenziwe ngokuzimisa ukuthi amanzi ahlulwe. Uma amanzi ayifika, ayashisana kakhulu. Ngokufana nokuphuma kwezilwane futhi ukuphuma emzimbeni, uyashisana, ngiye? Amanzi ayenza lokho ku-tank. Ngoba ayadlula ngokushisana kakhulu, izinto ezingavamile, isand, izinye izihlathi nezinye izinto – izilwane – zingasalwa. Zibiza kakhulu kunezilwane futhi ziyabuka emuva. Ngokufana nokudla izilwane emzimbeni wamanzi futhi ukuvumela ukuthi zibe emuva; izilwane ziyabuka emuva. Lokhu kulandelelwa ngokubukwa njengokuhlanganiswa. Sizazi ukuthi lokhu kukhona kakhulu kodwa kuyisisekelo esihle sokwenza amanzi okwenzeka okusebenza. Sibona izitanki ezinkulu ziyasebenza, futhi kuyajabula kakhulu ukuthi zihlonipha izilwane. Amanzi okuhlulwa ayadlula emuva, abuye izilwane ezisalwe emuva. Lokhu kulandelelwa ngokubukwa njengokuhlanganiswa, futhi kufanele ukususwa ngokushesha. Uma akukho izitanki, amanzi ayakwabela ngokungafanele nezinye izinto. Lokhu kukhona kakhulu, kusetyenziselwa ngamazwi amaningi, kodwa kuyisikhathi esisha izinkambo zokugcina izilwane ngokuhle yabakwa ngokwesayensi enenhle ukuze sebenze kahle. Ziyisikhala esiningi isikwere noma isihlangu, ubukhulu buyaphenduka ngokulingana nokulinga kwamanzi okufundiswa. Amanzi angasindwa amahouru amaningi kuleli sikhala, ukuze kuboneke ukuthi izilwane zizosindwa. Lokhu kusindwa kuyenza umsebenzi omkhulu wokuhlaka amanzi kabefore emiseni yezinye.