Uprating Instalasi Pengolahan Air Minum Konstruksi Baja
Submission Date: 2022-02-07 18:32:50
Accepted Date: 2022-04-18 10:16:53
Abstract
Seiring bertambahnya tahun, jumlah penduduk terus meningkat. Hasil proyeksi menunjukkan jumlah penduduk Indonesia akan meningkat dari 270,2 juta jiwa pada tahun 2020 menjadi 318,9 juta jiwa pada tahun 2045. Sedangkan, total kapasitas Instalasi Pengolahan Air Minum (IPAM) di Indonesia sebesar 100.000 liter/detik atau setara melayani sekitar 100 juta penduduk. Hal ini menunjukkan bahwa tingkat kebutuhan air minum jauh melampaui kapasitas IPAM. Untuk itu perlu dilakukan peningkatan kapasitas produksi air minum salah satunya dengan uprating IPAM, yang dapat menambah volume atau debit produksi hingga dua kali volume atau debit awal. Mekanisme dan volume pekerjaan uprating IPAM dapat disesuaikan kembali sesuai masalah layanan air minum masing-masing. Kajian ini membahas mekanisme uprating pada unit koagulasi-flokulasi, sedimentasi, dan filtrasi pada IPAM berdasarkan kombinasi kriteria desain uprating pada SNI 6774:2008 dengan kriteria desain lain yang memenuhi ketentuan. Kajian dilanjutkan dengan simulasi perencanaan uprating unit pengolahan air minum pada instalasi pengolahan air paket 50 L/detik IPAM Siwalanpanji Sidoarjo. Didapatkan hasil bahwa dengan uprating pada tiap unit pengolahan air, debit IPAM yang semula 36 L/detik dapat ditingkatkan hingga dua kali lipat yakni menjadi 72 L/detik dengan mekanisme dan kriteria desain uprating yang memenuhi. Mekanisme uprating yang dilakukan pada simulasi ini antara lain mempersingkat waktu detensi (td) dan menambah 1 unit koagulasi-flokulasi dan sedimentasi. Sedangkan, debit pada unit filtrasi ditingkatkan dengan mengganti ukuran masing-masing media filter (antrasit dan pasir silika).
Keywords
Instalasi Pengolahan Air Minum; Kapasitas Pengolahan; Uprating
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