PERANCANGAN INTERCONNECTION PIPE UNTUK MENAMBAH KEHANDALAN SISTEM REVERSE OSMOSIS DI PLTU BANTEN 2 LABUAN

HARDIMAN WAHYU H, Wikan Sakarinto, S.T., M.Sc.,Ph.D.

2018 | Tugas Akhir | D3 TEKNIK MESIN

INTISARI Reverse osmosis adalah proses pemurnian air dengan cara memberikan tekanan hydrostatic pada air umpan sehingga mampu menembus sel membrane permeable dan menghasilkan air murni. Di dalam reverse osmosis system terdapat banyak peralatan yang digunakan antara lain yaitu catridge filter dan high pressure pump primary reverse osmosis (HPP Primary RO). Catridge filter digunakan untuk menyaring kotoran atau partikel yang terdapat dalam air keluaran actived carbon filter yang dapat merusak atau menyumbat membrane RO. Sedangkan HPP Primary RO digunakan untuk mengalirkan raw water dari catridge ke primary RO. Masalah terjadi saat pergantian filter pada catridge A sedangkan disaat bersamaan pompa yang siap beroperasi HPP primary RO B dikarenakan HPP primary RO A mengalami kerusakan atau sedang mengalami perbaikan begitu juga sebaliknya pada saat pergantian filter pada catridge B pompa yang siap beroperasi HPP primary RO A. Masalah yang ditimbulkan saat pergantian filter pada catridge tersebut meyebabkan produksi air demin harus terhenti karena reverse osmosis sistem harus stop. Perancangan interconnection pipe yang dilakukan yaitu menghitung biaya pembuatan, head losses pada perpipaan sistem reverse osmosis, dan keuntungan yang didapat perusahaan setelah adanya interconnection pipe. Berdasarkan analisa yang dilakukan, setelah ditambahkannya interconnection pipe pada sistem reverse osmosis dapat menambah kehandalan PLTU dan dapat memberikan manfaat finansial sebesar Rp. 755.134.500,00 karena produksi air demin tetap beroperasi ketika penggantian filter pada catridge.

ABSTRACT Reverse osmosis is the process of water purifying by giving hydrostatic pressure to the flowing water so it passes the permeable membrane and producing pure water. In the reverse osmosis system there are many equipment such as catridge filter and high pressure reverse osmosis primary pump (HPP Primary RO). Catridge filters are used to filter out any dirt or substance that filters in the activated carbon filters that can damage or clog up the RO membrane. While HPP Primary RO is used to drain raw water from catridge to primary RO. Problems are occurring while switching filter on catridge A while at the same time that pump which is ready to operate is the Primary HPP RO B due to Primary HPP RO A damaged or being repaired the otherwise when the filter on catridge B changed the pump that ready to operate is HPP primary RO A. Problem that happens when the filter in the catridge was changed it caused the production of demin water must be stopped because the reverse osmosis system must stop. The interconnection pipeline that designed is calculated the cost of manufacture, the head loss on the reverse osmosis piping system, and the profit that the company receives after the interconnection pipeline. Based on the analysis that has been done, after the added interconnection pipes in the reverse osmosis system increases the reliability and can provide financial benefits of Rp. 755.134.500,00 because demin water production still operation when filter changed on catridge. ABSTRACT Reverse osmosis is the process of water purifying by giving hydrostatic pressure to the flowing water so it passes the permeable membrane and producing pure water. In the reverse osmosis system there are many equipment such as catridge filter and high pressure reverse osmosis primary pump (HPP Primary RO). Catridge filters are used to filter out any dirt or substance that filters in the activated carbon filters that can damage or clog up the RO membrane. While HPP Primary RO is used to drain raw water from catridge to primary RO. Problems are occurring while switching filter on catridge A while at the same time that pump which is ready to operate is the Primary HPP RO B due to Primary HPP RO A damaged or being repaired the otherwise when the filter on catridge B changed the pump that ready to operate is HPP primary RO A. Problem that happens when the filter in the catridge was changed it caused the production of demin water must be stopped because the reverse osmosis system must stop. The interconnection pipeline that designed is calculated the cost of manufacture, the head loss on the reverse osmosis piping system, and the profit that the company receives after the interconnection pipeline. Based on the analysis that has been done, after the added interconnection pipes in the reverse osmosis system increases the reliability and can provide financial benefits of Rp. 755.134.500,00 because demin water production still operation when filter changed on catridge.

Kata Kunci : Reverse osmosis, Catridge filter, Interconnection pipe