Perancangan Unit Bangunan Pengolahan Air Minum Kampus Institut Teknologi Sepuluh Nopember

Priambodo, Eko Ary (2017) Perancangan Unit Bangunan Pengolahan Air Minum Kampus Institut Teknologi Sepuluh Nopember. Undergraduate thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Menurut masterplan Kampus Institut Teknologi Sepuluh Nopember (ITS) akan memiliki jumlah civitas akademik 25.000 orang dengan kebutuhan air minum sebesar 17 l/detik, sedangkan tinggi hujan rata-rata di wilayah Kampus ITS seluas 187 ha tersebut adalah 2.065 mm per tahun. Dengan demikian Kampus ITS memiliki potensi dalam pemanfaatan air hujan untuk memenuhi kebutuhan air minum. Dalam rangka pemenuhan kebutuhan air minum secara mandiri dan mengurangi anggaran biaya penyediaan air minum maka diperlukan perencanaan unit bangunan pengolahan air minum Kampus ITS. Aspek yang ditinjau dalam perencanaan ini adalah aspek teknis dan finansial. Berdasarkan penelitian pendahuluan didapatkan air baku yang berasal dari limpasan air hujan memenuhi standar kualitas air baku kelas 2. Lokasi IPAM direncanakan berada pada lahan seluas 1.927 m2 di Jalan Teknik Mesin Kampus ITS dan akan dibangun 3 unit IPAM di lokasi tersebut. Sedangkan lokasi kolam penampungan air baku memiliki luas 4.458 m2 dengan kedalaman 4-5 m yang berada 442 m dari lokasi IPAM. Pemanfaatan kolam penampungan air hanya sebesar 50% dari kapasitas yang dapat ditampung. Hal ini dikarenakan kolam penampungan juga di manfaatkan sebagai tempat wisata dan fasilitas penunjang kegiatan mahasiswa Kampus ITS. Pembangunan IPAM Kampus ITS akan dilakukan dengan 3 tahap pembangunan. Pada tahap 1 memiliki kapasitas produksi sebesar 6,5 L/detik. Unit-unit yang digunakan dalam IPAM Kampus ITS adalah intake, koagulasi, flokulasi, sedimentasi, filtrasi, desinfeksi, reservoir dan rumah pompa. Berdasarkan perhitungan finansial, pembangunan IPAM Kampus ITS akan membutuhkan biaya sebesar Rp. 1.736.606.095 dengan biaya produksi dan O&M sebesar Rp.1.976/m3. Hal ini lebih murah dibandingkan dengan penyediaan air minum dari PDAM Surabaya sehingga dapat mengurangi pengeluaran Kampus ITS dalam hal penyediaan air berish. Namun demikian, pemanfaatan kolam dan drainase sebagai penampungan air limpasan hujan yang digunakan sebagai air baku pada kondisi eksisting tidak dapat memenuhi kebutuhan air ITS. Sehingga diperlukan kajian lebih lanjut tentang sistem drainase dan kolam penampungan air Kampus ITS. =========================================================== According to its masterplan, ITS with the total academicians of nearly 25,000 people, have the water demands of 17 L/s, while the rainfall intensity around this university which have total area of 187 ha is 2,065 mm per year. Therefore, ITS have the potential to utilize rainfall in order to supply it’s own water demand. In order to meet the water demand independently and reduce the water demand budgets, therefore the design of water treatment plant in ITS is needed. There are two aspect that will be reviewed in this design, which are technical and financial aspect. In the preliminary research, raw water that comes from rainwater runoff has water quality of 2. The water treatment plant planned to be built in the location with total area 1,927 m2 in Jalan Teknik Mesin ITS and there are 3 water treatment unit will be established in that place. While the location of reservoir has total area of 4.458 m2 and has depth around 4-5 m, where it is located at 442 m from the water treatment plant. Utilization of reservoir only 50% from it’s capacity. The reason of this matter is because reservoir also utilize as the entertainment area and supporting facility for ITS student’s activity. The construction of ITS water treatment plant will be done in 3 steps. The first step has water capacity of 6.5 L/s. Water treatment plant in ITS consist of intake, coagulation, flocculation, sedimentation, filtration, disinfection, reservoir and pump house. Based on financial calculation, construction of ITS water treatment plant is Rp1,736,606,095 pond and O&M cost is Rp 1,976/m3. This financial calculation show that this design is cheaper compare to water supply cost of PDAM Surabaya, therefore it can reduce the cost of water supply in this campus. Unfortunately, utilization of pond and drainage that function as the reservoir of rainwater runoff that can be used as the raw water, in the existing condition not able to provide ITS water demand. Therefore, there is a need to have more review regarding drainage system and water pond in ITS.

Item Type: Thesis (Undergraduate)
Uncontrolled Keywords: air limpasan hujan, air minum, biaya, kampus its, pengolahan air minum
Subjects: T Technology > TD Environmental technology. Sanitary engineering
Divisions: Faculty of Civil Engineering and Planning > Civil Engineering > (S1) Undergraduate Theses
Depositing User: EKO ARY PRIAMBODO
Date Deposited: 30 Mar 2017 03:10
Last Modified: 06 Mar 2019 03:16
URI: http://repository.its.ac.id/id/eprint/2520

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