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Abstract
Umumnya dalam pengolahan air, proses pemisahan padatan terjadi dalam bentuk pengendapan pa rtikel diskrit (prasedimentasi atau grit chamber) dan pengendapan flokulan (sedimentasi). Sebelum melakukan perencanaan untuk mengolah air sungai Kreo, diperlukan analisa kecepatan pengendapan sebagai dasar kriteria desain yang akan digunakan dalam perencanaan bak prasedimentasi dan sedimentasi. Air sungai diambil sesuai dengan SNI 6989.57:5008 pada titik kordinat X = 429320, Y = 9222982, dalam zona 49 M. Sebelum melakukan analisa pengendapan, dilakukan Jar test untuk mengetahui dosis koagulan yang optimum. Didapatkan dosis koagulan yang optimum sebesar 20 mg/L. Hasil analisis didapatkan bahwa, dengan overflow rate sebesar 2,769 m/h, bak prasedimentasi dapat mengendapkan partikel dengan ukuran 0,0315 mm atau lebih besar. Untuk mencapai efisiensi 70% dalam pengolahan sedimentasi, maka dibutuhkan overflow rate (Vo) sebesar 1,3 m/h.
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References
- [AWWA] American Water Works Association., (2005), Water Treatment Plant Design. Mc Graw Hill Company, New York, USA.
- Crittenden, J., Rhodes, T., Tchobanoglous, G., (2012), MWH’s Water Treatment Principle and Design. Mc Graw Hill Company, New Jersey, USA.
- Darmasetiawan, M., (2001), Teori dan Perencanaan Instalasi Pengolahan Air, Yayasan Suryono, Bandung, Indonesia.
- Davis, M., (2010), Water and Wastewater Engineering, Mc Graw Hill Company, New York, USA.
- Kawamura, S., (1991), Integrated Design of Water Treatment Facilities. John Wiley & Sons. New York, USA.
- Margaretha, Mayasari, R., Syaiful, Subroto, (2012), Pengaruh Kualitas Air Baku Terhadap Dosis dan Biaya Aluminium Sulfat dan Poly Aluminium Chloride, Jurnal Teknik Kimia, 18, 21-30.
- Pise, C.P., Halkude, S.A., (2011), A modified method for settling column data analysis, International Journal of Engineering Science and Technology (IJEST), 3(4), 3177-3183.
- Reynold, T.D., (1996), Unit Operations in Environmental Engineering. Texas A & M University, B/C Engineering Division Boston, Massachusetts, USA.
- Shammas, N., (2016), Water Engineering. John Wiley and Sons Inc, New Jersey, USA.
- SNI 19-6449-2000, Metode Pengujian Koagulasi - Flokulasi dengan Cara Jar Test.
- SNI 6989.57:2008, Air dan air limbah – Bagian 57: Metoda pengambilan contoh air permukaan.
References
[AWWA] American Water Works Association., (2005), Water Treatment Plant Design. Mc Graw Hill Company, New York, USA.
Crittenden, J., Rhodes, T., Tchobanoglous, G., (2012), MWH’s Water Treatment Principle and Design. Mc Graw Hill Company, New Jersey, USA.
Darmasetiawan, M., (2001), Teori dan Perencanaan Instalasi Pengolahan Air, Yayasan Suryono, Bandung, Indonesia.
Davis, M., (2010), Water and Wastewater Engineering, Mc Graw Hill Company, New York, USA.
Kawamura, S., (1991), Integrated Design of Water Treatment Facilities. John Wiley & Sons. New York, USA.
Margaretha, Mayasari, R., Syaiful, Subroto, (2012), Pengaruh Kualitas Air Baku Terhadap Dosis dan Biaya Aluminium Sulfat dan Poly Aluminium Chloride, Jurnal Teknik Kimia, 18, 21-30.
Pise, C.P., Halkude, S.A., (2011), A modified method for settling column data analysis, International Journal of Engineering Science and Technology (IJEST), 3(4), 3177-3183.
Reynold, T.D., (1996), Unit Operations in Environmental Engineering. Texas A & M University, B/C Engineering Division Boston, Massachusetts, USA.
Shammas, N., (2016), Water Engineering. John Wiley and Sons Inc, New Jersey, USA.
SNI 19-6449-2000, Metode Pengujian Koagulasi - Flokulasi dengan Cara Jar Test.
SNI 6989.57:2008, Air dan air limbah – Bagian 57: Metoda pengambilan contoh air permukaan.