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All Journal Journal of Geoscience, Engineering, Environment, and Technology Prosiding Seminar Nasional Pakar Jurnal GEOSAPTA Indonesian Mining and Energy Journal Jurnal Eksakta Kebumian Jurnal Pengabdian Masyarakat Indonesia (JPMI)
Reza Aryanto
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Earth & Planetary Sciences Education Energy Engineering Environmental Science Materials Science & Nanotechnology Physics Other

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Technical Assessment Of Mud Handling Planning With Dredger Pump In Mining Front Area Of Pt. Makmur Lestari Primatama, Southeast Sulawesi, Indonesia Reza Aryanto; Herza Mitha Fortuna; Purwiyono, Taat Tri; Suliestyah, Suliestyah
Journal of Geoscience, Engineering, Environment, and Technology Vol. 9 No. 3 (2024): JGEET Vol 09 No 03 : September (2024)
Publisher : UIR PRESS

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25299/jgeet.2024.9.3.16829

Abstract

The high intensity of rain can affect mining activities because rainwater will be collected and stored in the area with the lowest elevation. In mining areas that have the lowest elevation point, namely the pit area, this will have an impact on mining activities. The pit area will not be disturbed if water or eroded slopes will enter and be accommodated in well-made drainage and vice versa if drainage is not formed properly, water and mud will be retained and accommodated in the pit area. If the water and mud are left unchecked, the water will overflow and mining will be temporarily halted, affecting the previously planned mining system. In this case, the pit whose water has been pumped out leaves the mud at the bottom of the pit trapped, so action is needed to remove the mud from the pit area and the need for qualified tools according to the existing mud criteria. The mud at PT Makmur Lestari Primatama has an SG criteria of 1.39 (top elevation mud) - 1.5 (bottom elevation mud) with mud grains of 0.005mm to 2mm, it can be concluded that the mud has liquid mud criteria to hard mud. So that the determination of a tool to be able to move mud using a pump, the selection of this pump There are three important parameters: Grain size, Specific Gravity, and also variations in material concentration that must be considered because they can affect the total head or flowrate. The difference between the Slurry pump and the dredger pump is in the pumping process, the dredger pump is able to pump hard mud with the help of a little water while the slurry pump is difficult to pump hard mud because it requires quite a lot of water to pump it. Therefore, a dredger pump is chosen to move the mud in the mining area so that it can pump liquid mud to hard mud, the selection of this dredger pump is based on pump specifications including max capacity 120-200m3/h, solid handling 35mm - 60mm, speed 1180 RPM, and effieciency 46%-51%. The planning analysis of the use of dredger pumps uses the Bernoulli equation and the amount of mud that must be pumped using the USLE method. Based on the results of a series of studies that have been carried out, researchers found that the total potential erosion is 8,574.2 tons/year, the total actual erosion is 7,716.8 tons/year, and the total volume of mud that must be pumped is 5,074.86m3 with a slurry weight of 1,448.2 kg/m3. So the most ideal dredger pump for this purpose is Dragflow HY85A with a capacity of 210m3/h, pumping hours of 16.6 hours / day, pumping duration of 2 days 15 hours and efficiency of 40% using HDPE type 10 inch diameter pipe.
PELATIHAN PENGUKURAN KUALITAS AIR SUNGAI DESA CISARUAKECAMATAN NANGGUNG Reza Aryanto; Wiwik Dahani; Irfan Marwanza; Andry Prima
Jurnal Pengabdian Masyarakat Indonesia (JPMI) Vol. 1 No. 6 (2024): Agustus
Publisher : Publikasi Inspirasi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62017/jpmi.v1i6.2121

Abstract

Kabupaten Bogor, yang terletak diwilayah Jawa Barat memiliki potensi sumber daya alam yang menjanjikan dalam bidang pertambangan emas khususnya pada desa Cisarua. Namun, kegiatan pertambangan emas didaerah ini adalah illegal dan memiliki resiko tinggi terhadap lingkungan dan pekerja. Proses penambangan dilakukan dengan teknik sederhana dan pengolahan emas menggunakan merkuri yang berpotensi mencemari lingkungan. Penambangan tanpa izin ini sering menggunakan merkuri dan membuang air hasil pengolahan ke sungai desa Cisarua. Melalui kegiatan pengabdian kepada masyarakat ini, tim terdiri dari dosen dan mahasiswa mengadakan kegiatan penataran, penyuluhan, pelatihan terkait pengukuran dan pengelolaan kualitas air di sungai desa Cisarua. Hasil dari pelatihan dan pengukuran kualitas air sungai desa Cisarua diharapkan masyarakat dapat melakukan pemantauan kualitas air sesuai baku mutu air secara mandiri.
KAJIAN INFILTRASI MENGGUNAKAN METODE HORTON DI AREA DESA LANGSE, KARANGSAMBUNG: STUDY OF INFILTRATION USING THE HORTON METHOD IN LANGSE VILLAGE AREA, KARANGSAMBUNG Bahri, Adjie Saiful; Reza Aryanto; Purwiyono, Taat Tri
Jurnal Eksakta Kebumian Vol. 3 No. 2 (2022): JURNAL EKSAKTA KEBUMIAN (JEK)
Publisher : Fakultas Teknologi Kebumian dan Energi, Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jek.v3i2.16052

Abstract

Abstrak Infiltrasi merupakan air hujan yang turun ke bumi, kemudian diserap kedalam tanah. Proses tersebut dinamakan proses yang penting dalam suatu daur hidrologi. Penelitian dilakukan di Desa Langse, Karangsambung, Kebumen, Jawa Tengah. Desa Langse sendiri merupakan daerah yang dikelilingi oleh perbukitan sehingga memiliki topografi yang sangat curam dan terdapat banyak daerah aliran sungai. Analisa laju infiltrasi perlu dilakukan pada daerah tersebut guna mengetahui daerah yang terjadi limpasan pada Desa Langse. Nilai parameter dari laju infiltrasi yang diukur dapat digunakan untuk mengendalikan kondisi wilayah yang terjadi limpasan. Penelitian ini menggunakan alat Double Ring Infiltrometer sebagai pengukur laju infiltrasi dan dengan Metode Horton, nilai kapasitas infiltrasi pada suatu daerah akan dapat dihitung dari hasil pengukuran lapangan. Hasil analisa kedua perhitungan laju infiltrasi dan intensitas hujan dibandingkan dan akan terbentuk peta yang menunjukkan daerah yang terjadi limpasan hujan.   Kata-kata kunci: air, hujan, infiltrasi, metode Horton   Abstract Infiltration is rainwater that falls to the earth, then is absorbed into the ground. The process is called an important process in a hydrological cycle. The research was conducted in Langse Village, Karanggulung, Kebumen, Central Java. Langse Village itself is an area surrounded by hills so it has a very steep topography and there are many river basins. An analysis of the infiltration rate needs to be carried out in the area in order to find out the areas where runoff occurs in Langse Village. The parameter value of the measured infiltration rate can be used to control the condition of the area where runoff occurs. This study uses a Double Ring Infiltrometer as a measure of infiltration rate and with the Horton Method, the value of infiltration capacity in an area can be calculated from the results of field measurements. The results of the analysis of the two calculations of the infiltration rate and rain intensity are compared and a map will be formed showing the areas where rain runoff occurs.   Keywords: water, rain, infiltration, Horton method
Co-Authors -, Farhan Ghalib Dinata Andry Prima Bahri, Adjie Saiful Bahta Wijaya Sitompul Chrisnal J. K. T. Tamod Christin Palit Danu Putra Dhanty Indriastuty Egidia Vit Mafiana Eriko Jiliano Erry Sumarjono Frizky Sasetya Lesana Herza Mitha Fortuna Irfan Marwanza Jacky James Silalahi Masagus A Azizi Mixsindo Korra Herdyanti Purwiyono, Taat Tri Regita Cahyani Ririn Yulianti Subandrio Subandrio Suliestyah Suliestyah, Suliestyah Taat Tri Purwiyono Tuheteru, Edy Jamal Wiwik Dahani