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All Journal Jurnal Teknik Pengairan: Journal of Water Resources Engineering INTEK: Jurnal Penelitian jgeo
Ilham Ali
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Computer Science & IT Earth & Planetary Sciences Education Engineering Environmental Science Social Sciences

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PEMANFAATAN SISTEM PEMANENAN AIR HUJAN (RAINWATER HARVESTING SYSTEM) DI PERUMAHAN BONE BIRU INDAH PERMAI KOTA WATAMPONE DALAM RANGKA PENERAPAN SISTEM DRAINASE BERKELANJUTAN Ali, Ilham; Suhardjono, Suhardjono; Hendrawan, Andre Primantyo
Jurnal Teknik Pengairan: Journal of Water Resources Engineering Vol 8, No 1 (2017)
Publisher : Fakultas Teknik, Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1123.629 KB) | DOI: 10.21776/ub.jtp.2017.008.01.03

Abstract

ABSTRAK:  Perumahan Bone Biru Indah Permai Kota Watampone terletak di Kabupaten Bone Propinsi Sulawesi Selatan.  Permasalahan sumber daya air yang terjadi di perumahan ini, adalah; di musim hujan, luapan aliran drainase seringkali mengakibatkan terjadinya genangan pada jalan-jalan perumahan dan rumah-rumah penduduk, sementara di musim kemarau, terjadi kelangkaan air bersih.  Penelitian ini mengkaji penerapan sistem drainase berkelanjutan dengan teknik pemanenan air hujan (PAH), dengan tujuan untuk mengetahui besaran potensi curah hujan yang dapat dipanen dan sisa limpasan yang harus di-manage oleh sistem drainase eksisting, serta untuk menentukan besaran kapasitas sarana PAH yang dibutuhkan dalam memenuhi keperluan suplai air bersih penduduk.  Potensi air hujan dihitung dengan menggunakan tinggi hujan harian rata-rata bulanan yang diperoleh dari Metode Rata-rata Aritmetik.  Kapasitas sarana PAH ditentukan dengan Metode Simulasi Tampungan Bulanan.  Limpasan permukaan rencana dihitung dengan Metode Rasional.  Dari  hasil kajian diperoleh; potensi curah hujan yang dapat dipanen dari permukaan atap sebesar 147.009,86 m3 per tahun, sisa limpasan hujan yang bersumber dari atap sebesar 25.829,86 m3 per tahun dan  total kapasitas tampungan sarana PAH yang dibutuhkan sebesar 4.743,20 m3.  Dengan penerapan sistem PAH, mampu mereduksi jumlah limpasan drainase yang  terjadi sekaligus juga dapat mengefektifkan fungsi saluran-saluran dan gorong-gorong drainase eksisting yang ada di perumahan ini.  Kata kunci: sistem pemanenan air hujan, sistem drainase berkelanjutan. ABSTRACT: Bone Biru Indah Permai Residence City of Watampone lied in Bone Regency, Province of South Sulawesi.  Problems of water resources that happened in this residence, were; in rainy seasons, overflow of drainage caused inundation on resindence's roads surfaces and inhabitants houses alwaysly, in the other side, in dry seasons, fresh water scarecity was occured.  This research studying the implementation of sustainable drainage system by using rainwater harvesting system, with aims; to know how much potency of rainfall  that can be harvested and remaining runoff must be managed by existing drainage system, and also to determine how big capacity of rainwater harvesting storage that needed to fulfill residence's inhabitant fresh water supply needs.  Potency of rainwater was calculated by using monthly average rainfall height that obtained from height of monthly average daily-rainfall which was determined with Arithmatic Average Method. Capacity of the rainwwater harvesting storages was designed by using Monthly Storage Simulation Method. Design surface runoff was calculated by using Rational Method. Result of study showed that; there were 147.009,85 m3 in a year potency of rainwater that could be harvested from rooftop surfaces, 25.829,86 m3 rooftops-runoff which still remained in every year and 4.743,20 m3 the total of capacity of rainwater harvesting storage that needed. With the implementation of rainwater harvesting system, can reduce the total drainage run-off  and in the same time can make the functions of the channels and culverts in this residence to be more efectively too.Keywords: rainwter harvesting system, sustainable drainage system
PENGARUH KEBAKARAN HUTAN DAN LAHAN DI KALIMANTAN TERHADAP PENINGKATAN POLUSI UDARA BAGI NEGARA SEKITARNYA Putri, Salsabila; Saputra, Cahya Dwi; Hotimah, Oot; Ali, Ilham
Jurnal Geografi Vol 20 No 2 (2024): JURNAL GEOGRAFI
Publisher : Universitas Nusa Cendana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35508/jgeo.v20i2.13353

Abstract

This article is about the effect of forest fires in Kalimantan on increasing air pollution for surrounding countries. The problem of forest fires has become a national issue that is of serious concern to the government. This incident occurs repeatedly every year, especially on the island of Kalimantan. Indonesia has very extensive and dense tropical forests, especially in the Papua and Kalimantan regions. These forests contribute significantly to oxygen production and carbon dioxide storage, which are important factors in maintaining global climate balance. Some people in Indonesia depend directly or indirectly on forests to earn a living and meet their daily needs. Air pollution due to forest fires in Indonesia does not only impact local areas, but can also spread to neighboring countries such as Malaysia, Singapore and Brunei. This can worsen the air quality and health of the citizens of these countries.
Groundwater Pumping Management in Controlling Seawater Up-Coning in The North Coastal Area of Makassar Badaruddin, Sugiarto; Azis, Akhmad; Ashari, Muhammad Fadhil; Jannah, Miftahul; Ali, Ilham; Ihsan, Muhammad
INTEK: Jurnal Penelitian Vol 7 No 2 (2020): October 2020
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v7i2.2634

Abstract

In big cities, communities generally consume clean water from local water supply company which uses surface water sources. However, due to the limitations of the company in supplying water, particularly in the dry season, an alternative is required, such as using groundwater without causing over-exploitation. This study aims to determine the optimal rate of groundwater pumping in the coastal aquifer to avoid seawater up coning using SEAWAT V.4 numerical model. The research method was carried out using a GEO-7X GPS device to obtain coordinate's location, land elevation and observation well distance from the coastline. Secondary data in the form of aquifer thickness data and geological map of the site were obtained from previous studies. The salinity test results show that the average salinity value of the ten water samples from observation wells is 36.8 mg/l, which means that the water is categorized as non-saline water (freshwater). These data are in line with the groundwater utilization monitoring activity report of Makassar City Environment Office in 2018, which reported that Ujung Tanah and Wajo Districts were found to be free from seawater intrusion. Even so, the potential for seawater intrusion is still considered high because of the location of community groundwater wells are near from the coast. One of the efforts to prevent seawater up coning is by limiting groundwater pumping. From the numerical modeling results, it is found that the maximum groundwater discharge in the research site, namely P3 is 20% of total flow rate(0.3 m3/day), P5 is 20% (1.32 m3/day), P6 is 40% (0.52 m3/day) and P10 is 20%(0.63 m3/day).
Co-Authors Andre Primantyo Hendrawan Ashari, Muhammad Fadhil Azis, Akhmad Badaruddin, Sugiarto Miftahul Jannah Muhammad Ihsan Oot Hotimah Putri, Salsabila Saputra, Cahya Dwi Suhardjono Suhardjono