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dc.contributor.advisorPasaribu, Nurhaida
dc.contributor.authorNugraha, Indra
dc.date.accessioned2022-12-14T09:25:58Z
dc.date.available2022-12-14T09:25:58Z
dc.date.issued2009
dc.identifier.urihttps://repositori.usu.ac.id/handle/123456789/73653
dc.description.abstractCooling water system is a refrigerator factory in the urea PT.Pupuk Iskandar Muda. Silica matrix that is in the range of cooling water <200 ppm, while the womb ortofosfat between 4-6 ppm and the pH range 7-9. Outside the control limits can cause corrosion and scaling in the tower.en_US
dc.language.isoiden_US
dc.publisherUniversitas Sumatera Utaraen_US
dc.titlePengaruh pH, Silika (SiO2) dan Ortofosfat (O-PO4) terhadap Cooling Water Treatment Urea-1 (63-EF-2101) PT Pupuk Iskandar Mudaen_US
dc.typeThesisen_US
dc.identifier.nimNIM062409037
dc.identifier.nidnNIDN0001115703
dc.identifier.kodeprodiKODEPRODI47401#Kimia
dc.description.pages37 Halamanen_US
dc.description.typeKertas Karya Diplomaen_US


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