Juliani, Nur Eka (2018) Optimasi Multirespon pada Proses Jar Test di IPAM Ngagel II PDAM Surya Sembada Surabaya dengan Metode Taguchi Grey Relational Analysis. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.
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Abstract
PDAM Surya Sembada merupakan salah satu perusahaan pengolahan air bersih dan juga bertugas untuk mendistribusikan ke pelanggan. Proses pengolahan air secara lengkap terbagi menjadi tiga tahapan yaitu tahap pendahuluan, tahap kedua, dan tahap lanjutan. Salah satu proses pada tahap kedua yaitu proses koagulasi dan flokulasi. Koagulasi merupakan proses pengenda-pan partikel yang tidak dapat mengendap secara alami. Flokulasi adalah penggabungan inti flok atau flok kecil menjadi flok yang berukuran besar. Variabel penentu proses koagulasi flokulasi dapat ditentukan dengan melakukan jar test. Menteri Kesehatan Republik Indonesia melalui PERMENKES No. 492 Tahun 2010 menjelaskan bahwa terdapat beberapa batas-batas persyaratan air minum. Untuk kadar kekeruhan yang diperbolehkan dalam air yaitu maksimal 5 NTU dan pH air di antara 6.5 – 8.5. Kedua karakteristik kualitas air tersebut dianggap penting oleh karena itu diperlukan penentuan komposisi dari faktor-faktor yang mempengaruhi kedua karakteristik kualitas tersebut. Pada penelitian ini dilakukan optimasi dengan metode Taguchi Grey Relational Analysis pada proses jar test untuk mengetahui faktor-faktor yang memiliki pengaruh signifikan terhadap kadar kekeruhan dan pH. Hasil dari penelitian menunjukkan bahwa dosis koagulan dan waktu pengadukan cepat berpengaruh signifikan terhadap kadar kekeruhan dan pH dengan kontribusi sebesar 12.54% dan 14.58% ketika tingkat kepentingan kedua respon diasumsikan sama. Setting level optimal pada saat dosis koagulan 35 ppm dan waktu pengadukan cepat 3 menit. Pada saat tingkat kepentingan kadar kekeruhan lebih tinggi daripada pH, faktor signifikan yaitu dosis koagulan 35 ppm, pengadukan cepat 150 rpm, dan waktu pengadukan cepat 3 menit dengan kontribusi masing-masing sebesar 19.22%, 13.00%, dan 12.66%.
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PDAM Surya Sembada is one of the water treatment plant companies that served to distribute the clean water to the consumers. The complete process of water treatment are divided into three stages, which are preliminary, second, and advanced stage. One of the processes in the second stage is coagulation and flocculation. Coagulation is a precipitation process of particles that can not settle naturally. Flocculation is the incorporation of the core of flock or small flock changes into a large flock. The determinant variable of flocculation coagulation can be determined by doing a jar test. Ministry of Health of the Republic of Indonesia through PERMENKES No. 492 of 2010 explains that there are several limits to drinking water requirements. The maximum permissible turbidity of water is 5 NTU and water pH between 6.5 - 8.5. Both characteristics of water quality are considered important therefore it is necessary to determine the composition of the factors. In this research, we do optimization using Taguchi Grey Relational Analysis method on jar test to know the factors that have significant influence on turbidity of water and pH level. The results showed that coagulant dose and rapid stirring time had significant effect on turbidity of water and pH with contribution respectively 12.54% and 14.58% when the importance of both responses was assumed to be the same. The optimal setting level with 35 ppm coagulant dose and 3 minutes rapid stirring time. Factors that have significant effect on response when the level of importance of turbidity is higher than pH, which are coagulant dose 35 ppm, rapid stirring 150 rpm, and rapid stirring time 3 minute have contribution respectively 19.22%, 13.00%, and 12.66%.
| Item Type: | Thesis (Undergraduate) |
|---|---|
| Additional Information: | RSSt 519.86 Jul o-1 3100018075070 |
| Uncontrolled Keywords: | Jar Test; Kadar Kekeruhan; Koagulasi Flokulasi; pH; Taguchi Grey Relational Analysis; Coagulation Flocculation; Jar Test; pH; Taguchi Grey Relational Analysis; Turbidity |
| Subjects: | H Social Sciences > HA Statistics > HA29 Theory and method of social science statistics Q Science > Q Science (General) |
| Divisions: | Faculty of Mathematics and Science > Statistics > 49201-(S1) Undergraduate Thesis |
| Depositing User: | nur eka Juliani |
| Date Deposited: | 03 Apr 2018 08:31 |
| Last Modified: | 21 Sep 2020 06:45 |
| URI: | http://repository.its.ac.id/id/eprint/50604 |
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