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All Journal Akrab Juara : Jurnal Ilmu-ilmu Sosial Jurnal Riset, Inovasi, Teknologi & Terapan
Salam, Abdul Haris
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Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Industrial & Manufacturing Engineering Medicine & Pharmacology

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ANALISA DAN PENENTUAN LAPISAN KERAS DENGAN METODE GEOLISTRIK UNTUK DASAR PEMBANGUNAN GEDUNG BARU DI POLITEKNIK NEGERI BENGKALIS Yendra, Alfauzan; Salam, Abdul Haris
Jurnal Akrab Juara Vol 3 No 1 (2018)
Publisher : Yayasan Akrab Pekanbaru

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Abstract

Politeknik Negeri Bengkalis berada pada pulau Bengkalis yang mana pulau Bengkalis ini terdiri lapisan gambut. Lapisan Gambut ini kita ketahui adalah lapisan yang lunak sehingga berbahaya jika kita membangun gedung pada lapisan ini. Politeknik Negeri Bengkalis pada saat ini tengah gencarnya dalam tahap pembangunan gedung kuliah sehingga pada area Politeknik Negeri Bengkalis ini ini perlu di kaji geotekniknya sebagai masukan untuk pembangunan gedung di area kampus Politeknik Ngeri Bengkalis ini. Penelitian ini menggunakan metode Geolistrik konfigurasi Schlumberger untuk mendapatkan data resistivitas bawah permukaan. Dari hasil pengukuran Geolistrik konfigurasi Schlumberger di 5 titik pengukuran di area kampus Politeknik Ngeri Bengkalis di dapat nilai resistivitas untuk tanah gambut dan tanah lunak (soil) adalah antara 5 – 100 ohm dengan kedalaman kurang lebih antara 0 m sampai kedalaman 7 m. Sedangkan untuk lapisan keras memiliki resistivitas diatas 100 ohm yang berada pada kedalaman 7 meter keatas. Kata Kunci: Geolistrik, Geofisika, Schlumberger, Politeknik Negeri Bengkalis.
Pupuk Organik Cair Dari Limbah Padat Penyulingan Sereh Mudarakna, Fathara; Salam, Abdul Haris
Jurnal Riset, Inovasi, Teknologi & Terapan Vol 1, No 1 (2022): Desember
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/ristera.v1i1.3699

Abstract

Fertilizer is one of the components needed by plants to get additional nutrients so that they can grow well and are not susceptible to disease. There are various types of plant fertilizers on the market and most of them are chemical fertilizers with inorganic synthetic content. The content is thought to be not good for health when applied to food plants in excess. Meanwhile, organic fertilizers are safer for humans because they consist of organic ingridients. Liquid organic fertilizer can be interpreted as a fertilizer that is formed naturally through a fermentation process that results in decay. In this study, the sample used was citronella waste as the main raw material obtained from the distillery. The fermentation method used is anaerobic. Based on the results of fermentetion carried out for 23 days, the pH of organic fertilizers was found to be in the range 4-5.39 where the range was still in accordance with the standard range of 4-8. The temperature is at room temperature with an averege of 30.8˚C. The levels of macronutrients produced have not yet reached the standard. Based on the results of the study, it can be concluded that the use of citronella waste alone cannot achieve the required levels of macro nutirents. Additional fermentation time as well as other components are suggested to get different results
Co-Authors Mudarakna, Fathara Yendra, Alfauzan