PENENTUAN KADAR CaO DALAM KAPUR PADA PENGOLAHAN AIR DI PDAM TIRTANADI DELITUA
ABSTRAK
Telah dilakukan penentuan kadar CaO dalam kapur pada pengolahan air di PDAM Tirtanadi Delitua. Kapur yang digunakan pada proses pengolahan air masih mengandung senyawa selain CaO seperti SiO2, Al2O3, Fe2O3, MgO, Na2 +
K2O, TiO2, P2O5, SO3. Karena itu dalam penelitian ini akan ditentukan kadar CaO
dalam kapur tersebut. Kadar CaO ditentukan dengan metode titrasi dengan larutan standar NaOH dan indikator Penolpthalein. Berdasarkan pengamatan yang dilakukan yaitu diperoleh kadar CaO 64,57% - 63,97% kadar CaO menurun setiap hari. Dimana kadar yang diperoleh sesuai dengan standar SNI 15-2049-1994 yaitu 60-70 %.
Kata Kunci : Kapur, Kadar CaO, Titrasi Alkalimetri
DETERMINATION OF CaO CONTENT OF THE LIME IN WATER TREATMENT IN THE TAPS TIRTANADI DELITUA
ABSTRACT
Has performed determination of CaO in lime in water treatment in Tirtanadi Delitua taps . Lime used in water treatment processes still contain compounds other than CaO such as SiO2 , Al2O3 , Fe2O3 , MgO , Na2 + K2O , TiO2 , P2O5 ,
SO3 . Therefore in this study will be determined the levels of CaO in the limestone
. CaO content was determined by titration with a standard solution of NaOH and indicators Penolpthalein . Based on observations obtained CaO content of 64.57 % - 63.97 % CaO content decreases every day . Where levels were obtained in accordance with ISO standards 15-2049-1994 is 60-70 %.
Key words : lime, CaO content, titration alkalimetry
