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"ABSTRAKPraktik keinsinyuran ini tentang desain Water Treatment Plant untuk PLTG PLN Antam Haltim yang memiliki kapasitas pembangkit 3x17 MW dan 2x30 MW. Sumber Raw Water diambil dari air tanah yang memiliki Total Dissolved Solids (TDS) sebesar 276 mg/l dan Total Suspended Solids (TSS) sebesar 302 mg/l. Pada Pembangkit Listrik Pembangkit Gas dibutuhkan kualitas air untuk air besih dan demineralisasi sehingga untuk kebutuhan air bersih tersebut diperlukan proses pre-treatment plant dengan menggunakan Multi Media Filter (MMF) kemudian air tersebut disimpan di Tank dengan kapasitas 870 m3 untuk kebutuhan service water dan Proses Demineralized Plant membutuhkan proses reverse osmosis dan Ion Exchange kemudian air dari demineralized plant di simpan di tank demin dengan kapasitas sebesar 240 m3. Kebutuhan service water untuk PLTG Hatim ini sebesar 2,5 m3/h untuk memenuhi kebutuhan Fire Fighting, Sevice water untuk semua bangunan, Potable water, Dosing WTP dan Dosing WWTP sedangkan untuk kebutuhan deminerazed Plant memiliki memilik kapasitas sebesar 10 m3/h untuk memenuhi kebutuhan 3 unit Tubine Gas kapasitas 17 MW dan 2 unit Turbine Gas Kapasitas 30 MW. Desain water treatment plant harus memenuhi aspek Keselamatan dan Kesehatan kerja, Profesionalisme dan Kode Etik Insinyur.

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ABSTRACTThis engineering practice concerns the design of the Water Treatment Plant for PLTG PLN Antam Haltim which has a generating capacity of 3x17 MW and 2x30 MW. Raw Water sources are taken from deep well which has Total Dissolved Solids (TDS) of 276 mg/l and Total Suspended Solids (TSS) of 302 mg/l. In Generating Gas Power Plants, water quality is needed for clean water and demineralization so that for clean water needs a pre-treatment plant process using a Multi Media Filter (MMF) then the water is stored in a tank with a capacity of 870 m3 for service water needs and The Demineralized Plant process requires a reverse osmosis and ion exchange process, then the water from the demineralized plant is stored in demineralized tanks with a capacity of 240 m3. The service water requirement for PLTG Hatim is 2.5 m3/h to meet the needs of Fire Fighting, Service water for all buildings, Potable water, Dosing WTP and Dosing WWTP while for deminerazed Plant needs it has a capacity of 10 m3/h to meet the needs of 3 Tubine units Gas capacity of 17 MW and 2 Gas Turbine units with capacity of 30 MW. The water treatment plant design must meet the aspects of Occupational Safety and Health, Professionalism and the Engineer's Code of Ethics."

"Jakarta‟s problems such as flood and traffic inspired a PRASTI (Public Railway andStormwater Infrastructure) infrastructure design, which is a multifunctional tunnel whose one of itsfunction is to drain Western Canal Flood (BKB) overflow. The feasibility study of this project initiatedthe development of PRASTI Water Treatment Plant (WTP) which aimed to increase the addedfunctions of this infrastructure design. Before the construction of WTP, project feasibility study wasrequired to see investment feasibility so that investors could join in developing this infrastructure. Thisstudy aimed to analyze the feasibility of the infrastructure using Life Cycle Cost (LCC) method byconsidering cost of development, operational, and maintenance costs as well as revenue componentsin 2014-2045 period. Cost analysis was obtained from benchmarking to several countries andapplications of different technologies. Based on the study it‟s discovered that investment feasibility of aWTP project was strongly influenced by field condition (electricity and chemical needs) which will beused. Difference of operational and maintenance cost schemes in Life Cycle Cost analysis in PRASTIWTP project indicated that the project is financially feasible with IRR amounting to 23% (optimistic)and IRR value of 8% (pessimistic)."

"Limbah residu lumpur dari pengolahan air wajib untuk diolah sebelum dibuang ke badan air sesuai dengan Peraturan Pemerintah Nomor 16 Tahun 2005. IPA Cipaku yang merupakan salah satu insatalasi pengolahan
air bagi PDAM Tirta Pakuan Kota Bogor saat ini masih melakukan pembuangan lumpur sisa pengolahan pada badan air sungai Cisadane tanpa melalui pengolahan limbah apapun. Timbulan volume lumpur maksimum
sebesar 1471,49 m3/hari dan timbulan volume rata-rata sebesar 724,54 m3/hari. Timbulan massa lumpur maksimum sendiri adalah sebesar 1731,38 kg/hari dengan nilai rata-rata 1074,54 kg/hari. Pemilihan
pengolahan lumpur didasarkan pada karakteristik lumpur yang dihasilkan, luas lahan, dan timbulan dry cake dari dua alternatif desain. Dari hasil perhitungan dan pertimbangan didapatkan alternatif desain berupa 1 bak
penampung, 1 Chemical Conditioning Tank, 1 Recovery Basin, 1 Gravity Thickener, dan 1 Belt Filter Press. Luas lahan yang dibutuhkan sekitar 360m2.

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Residual sludge waste from water treatment plant needs to be treated before being discharged into water bodies in accordance with Peraturan Pemerintah No. 16 Tahun 2005. IPA Cipaku as one of Water Treatment Plant under PDAM Tirta Pakuan Kota Bogor still disposes process residual sludge to river Cisadane water bodies without going through any waste processing. The maximum sludge generation volume is 1471,49 m3/day and the average generation volume is 724,54 m3/day. The maximum mass of sludge generation alone is 1731,38 kg/day with an average mass generation value of 1074,54 kg/day. The selection of sludge treatment is based on the characteristics of the sludge produced, the land area, and the dry cake generation of two alternative designs.
The calculations and considerations resulted an alternative design of a sludge treatment plant consisting of 1 holding tank , 1 Chemical Conditioning Tank, 1 Recovery Basin, 1 Gravity Thickener, and 1 Belt Filter Press. The land area required is approximately 360 m2."

"Updating the most comprehensive and complete guide to water treatment planning and design, this edition maintains the book's broad scope and reach, while reaching the working professional with additional worked problems and new treatment approaches. It covers both the principles and theory of water treatment as well as the practical considerations of plant design and distribution. The contents have been updated to cover changes to regulatory requirements, testing methodology, and design approaches, as well as the emergent topics of pharmacological agents in the water supply and treatment strategies"

"Permasalahan Jakarta berupa banjir dan kemacetan mengusung sebuah rancangan desain infrastruktur PRASTI (Public Railway and Stormwater Infrastructure) yang merupakan sebuah tunnel mutifungsi dimana salah satu fungsinya adalah mengalirkan air luapan Banjir Kanal Barat (BKB). Studi kelayakan proyek ini menginisiasi pembangunan unit pengolahan air (Water Treatment Plant, WTP) PRASTI Tunnel yang bertujuan untuk meningkatkan fungsi tambah desain infrastruktur ini. Sebelum dilakukan pembangunan WTP, studi kelayakan proyek sangat diperlukan untuk melihat kelayakan investasi agar nantinya investor dapat bergabung membangun infrastruktur nasional ini.Penelitian ini bertujuan untuk menganalisa kelayakan infrastruktur dengan menggunakan metode Life Cycle Cost (LCC) dengan memerhatikan komponen biaya pembangunan, operasional, perawatan serta pendapatan yang diperoleh dari rentang waktu 2014-2045. Analisis biaya diperoleh dari hasil benchmarking ke beberapa negara dan penerapan teknologi yang berbeda.Berdasarkan hasil penelitian diperoleh bahwa kelayakan investasi dari sebuah proyek WTP sangat dipengaruhi oleh kondisi lapangan (kebutuhan listrik dan bahan kimia) yang akan digunakan. Perbedaaan skema biaya operasional dan perawatan yang dilakukan pada analisis Life Cycle Cost pada proyek WTP PRASTI mengindikasikan bahwa proyek ini layak secara finansial dengan IRR sebesar 23% (optimis) dan memiliki nilai IRR sebesar 8% (pesimis).

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Jakarta’s problems, flooding and congestion raised an infrastructure design PRASTI (Public Railway and Stormwater Infrastructure) Tunnel which a multifunction tunnel to overflow water from Banjir Kanal Barat (BKB). Feasibility study of the project initiated a water treatment plant (WTP) PRASTI Tunnel which has aim as value added for the infrastructure. Before to construct WTP, feasibility study is an important thing to analyze because a feasible financial investment will attract investors to join in this national infrastructure.

This research aim to analyze feasibility investment with Life Cycle Cost (LCC) based on initial cost, operational and maintenance cost and revenue in period 2014-2045. Cost analysis taken from benchmarking on some country which adapted different technology.

Based on output of this research, feasibility investment from WTP project influenced by field situation (such as electricity needed and chemicals). The different of operational and maintenance cost indicated a viable scheme with IRR 23% (optimis scheme) and IRR 8% (pessimis scheme)."