Abstract
Water is a basic requirement that is needed by living things. Water is also need in every household, agricultural, economic, and industrial. A common problem that we faced today is the consumption of water continues to increase in line with population growth, while diminishing water resources in terms of quality and quantity. To calculate the water needs, a study be required on population projections and projected water requirements in the future. In this study, the calculation of the water demand consist of calculation of domestic water needs (household), calculation of non-domestic water needs (municipal), and calculation of industrial water needs. The projection method used in this study is Mathematical Logistic Curve Method. Based on calculations that have been done, population of Tasikmalaya in 2025 are 668,281 peoples, water demand of Tasikmalaya in 2025 is 2,100 liters/sec, and the water avaibility of Tasikmalaya in 2025 is 944.18 liters/sec. Avaibility less than requirement, so there is a water deficit 1,155.82 liters/sec.
Highlights
Air merupakan kebutuhan dasar yang sangat dibutuhkan oleh mahluk hidup
a basic requirement that is needed by living things
Water is also need in every household
Summary
Growth Method pada saat populasi rendah dan Declining Growth Method pada saat kota mencapai titik jenuh pertumbuhan jumlah penduduknya. Dalam menentukan metode proyeksi yang digunakan, dilakukan analisis trendline pertumbuhan penduduk dari masa lampau hingga masa sekarang. Berdasarkan Tabel 1 dan Gambar 3 di atas, dapat dilihat bahwa trendline grafik pertumbuhan penduduk kota Tasikmalaya cenderung berbentuk kurva-S. Sehingga metode analisis yang digunakan untuk memprediksi jumlah penduduk pada tahun 2025 adalah Mathematical Logistic Curve Method. Logistic Curve Method merupakan kombinasi antara Geometric Growth Method pada saat populasi rendah dan Declining Growth Method pada saat kota mencapai titik jenuh pertumbuhan jumlah penduduknya. Berdasarkan perhitungan diatas, jumlah penduduk kota Tasikmalaya pada tahun 2025 adalah sebesar 668.281 jiwa. 1. Konsumsi Unit Sambungan Rumah (SR) (liter/org/hari) 2.
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