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Tantri Mayang Arum
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Chemical Engineering, Chemistry & Bioengineering Environmental Science

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Journal : Jurnal Purifikasi

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PENENTUAN KONDISI OPTIMUM PENGADUKAN DALAM PROSES KOAGULASI Tantri Mayang Arum
Purifikasi Vol 5 No 3 (2004): Jurnal Purifikasi
Publisher : Department of Environmental Engineering-Faculty of Civil, Environmental and Geo Engineering. Institut Teknologi Sepuluh Nopember, Surabaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (405.758 KB) | DOI: 10.12962/j25983806.v5.i3.318

Abstract

This research was done at turbidity level of of 160 NTU. The research was done with jar test by varying the number of blade (2, 4 and 6 blades), diameter of the padle (55%, 65% and 75% of tank diameter), rotation speed of 190 rpm, 200 rpm and 210 rpm and distance of the padle to the tank base of ½, ¾ and 1 times of paddle diameter. This research concluded that those four factors influenced mixing physical factor equal to 90%. The main factor which affected turbidity removal were the number of the blade (46,7%) followed by the diameter of the padle (26,1%), the speed of mixing rotation (17,4%) and the distance of padle to the tank base (9,8%). Optimum condition reached by the condition of mixing using combination of 6 blades with padle’s diameter 75% to tank width, speed rotation of 210 rpm and distance of padle to tank base of ½ of the paddle diameter.
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