<p>Ketersediaan air bersih merupakan sebagian besar masalah utama diwilayah Kabupaten Manggarai Barat, Nusa Tenggara Timur. Padahal terdapat korelasi antara faktor kecukupan air, kesehatan dan pembangunan ekonomi. Salah satu daerah yang merepresentasikan kondisi ini adalah di Desa Labuan Bajo. Pesona wisata Pulau Flores yang terdapat di Kabupaten Manggarai Barat, dimana Labuan Bajo merupakan pintu gerbang untuk memasuki pesona wisata tersebut merupakan tempat yang sangat ingin dikunjungi oleh wisatawan. Sebagai bentuk upaya pemerintah untuk memperketat pengawasan dan penjagaan perbatasan maritim Labuan Bajo, pemerintah membentuk Pos TNI Angkatan Laut. Oleh karena itu, ketersedian air bersih sangat dibutuhkan di daerah tersebut. Selain untuk memenuhi kebutuhan masyarakat Labuan Bajo, meningkatkan sarana dan infrastruktur untuk mendatangkan para wisatawan yang banyak, juga untuk memenuhi dukungan logistik markas TNI AL. Untuk memenuhi kebutuhan air tersebut, maka ada 2 opsi yang diperkirakan dapat menyelesaikan masalah, yakni (1) pemetaan air bawah tanah di desa Labuan Bajo dan pemompaannya dengan menggunakan tenaga listrik dari hasil photo voltaic, dan (2) bilamana butir (1) nihil maka dilakukan pemompaan air dari reservoir yang tersedia pada jarak sekitar 3 km dari desa Labuan Bajo. Mengingat contour daerahnya, maka diperlukan pembuatan reservoir baru dan sistem pemompaan air dari reservoir yang telah tersedia, sehingga diperoleh tingkat ketinggian air yang memadai untuk mengalirkan air ke desa tersebut. Pemetaan air bawah tanah dilakukan dengan menggunakan metode geolistrik. Bilamana opsi 1 berhasil, maka sistem yang dibangun dapat dijadikan sebagai model pemompaan air bawah tanah, utamanya di wilayah Kabupaten Manggarai Barat yang memerlukannya. Kemudian air bersih yang didapat akan diolah melalui proses Reverse Osmosis untuk menghasilkan air siap minum.</p><p><strong>Kata Kunci :</strong> penyediaan air bersih, sel surya, energi terbarukan, daerah terpencil, pompa air</p>
In Indonesia, the contamination from domestic wastewater is becoming the greatest pollutant and reaches up to 85% that goes into the body of water. This might worsen the river water quality. To anticipate this condition, there should be some way out, by making use of wastewater as a source of energy. One of those systems is by employing Cone-tray Cascade Aerator combined with Biofilter by using Hydrilla plant which can be used as an alternative of waste water treatment for both domestic and institutional scale. This research was aimed at determining the system capability of aeration combined with biofilter by using hydrilla plant to reduce or eliminate the pollutant load of BOD, COD, and TSS. This research was conducted in a continuous stream of water at 200L/hour. The result showed that the best system of Conetray Cascade Aerator combined with biofilter could reduce BOD as much as 69,11%, COD at 61,14%, and TSS at 65,45%.
The New Renewable Energy Bill or better known as the EBT Bill is a discourse to provide a legal framework regarding policy stipulation, management, supply, and utilization of new and renewable energy. The EBT Bill is expected to be a structured and directed guideline in its implementation from a national to regional scale. With the enactment of the EBT Bill, the use of fossil energy must gradually stop. So it is necessary to look for other alternatives as a source of energy, especially in liquid fuels. One of the potentials that Indonesia as an archipelagic country can exploit is its marine products. E.cottonii is one of Indonesia's marine products that has the potential to be processed into bioethanol. The E.cottonii processing industry is spread across various regions of the Republic of Indonesia. Abundant production is also followed by an abundance of residual production waste. This waste is sometimes if not managed properly it will contribute to the emergence of environmental pollution. Therefore, the waste generated from the E.cottonii processing industry should be optimized by making bioethanol. E.cottonii waste which is used as bioethanol can be categorized as a 2nd generation biofuel, of course it will not disturb the stability of foodstuffs. This optimization step is carried out as a form of accelerating the use of new and renewable energy. It is also hoped that the utilization of this waste can be used as a source of liquid fuel to support operations within the ministry of defense.
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