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All Journal Jurnal Pendidikan Teknologi dan Kejuruan NUSANTARA: Jurnal Pengabdian Kepada Masyarakat Jurnal Teknik dan teknologi tepat guna
Ervil, Riko
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Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Education Engineering Social Sciences

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Sosialisasi Potensi Dan Peluang Kerja Di Kabupaten Lima Puluh Kota Nelvi, Afni; Hisni Rahmi; Marlina Amsya, Riam; Fadhly, Ahmad; Nofriadiman Nofriadiman; Elmawati Elmawati; Ervil, Riko; Mariza Syahyuda, Nelsy
NUSANTARA Jurnal Pengabdian Kepada Masyarakat Vol. 3 No. 4 (2023): November : Jurnal Pengabdian kepada Masyarakat
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/nusantara.v3i4.1936

Abstract

Based on data from the West Sumatra energy and mineral resources service, it is stated that Limapuluh Kota Regency has the potential for rocks (andesite, granite, limestone, marble) and metallic minerals (gold and lead). This huge natural potential requires good management so that it can develop and requires potential human resources as well. This is the background for socializing opportunities and potential job opportunities in Limapuluh Kota Regency. The socialization explains what potential mining resources exist in Limapuluh Kota Regency along with the job opportunities that exist in managing these resources. The target of this socialization is to open the minds of high school students in terms of the natural potential that their region has and to open up the students' insight in choosing the science they will study in college, so that as sons/daughters of the region they can contribute to the management and development of their region.
Productivity analysis using method Murvin E. Mundel case study PT. Johan Sentosa Ervil, Riko; Rhamadan, Dian Yudistira
Jurnal Pendidikan Teknologi Kejuruan Vol 4 No 4 (2021): Regular Issue
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/jptk.v4i4.21523

Abstract

Productivity is an alternative to evaluating the performance that has been done even one of the most effective ways in assessing the efficiency of using several inputs in producing certain outputs. the study was conducted at PT Johan Sentosa. The company is engaged in processing palm oil into CPO (crude palm oil) and kernels. In this case, the company must replace an important process called the sterilizer system from the horizontal sterilizer to the vertical sterilizer. This change will certainly have an impact on company productivity. In this study, the method used is Marvin E Mundel where partial productivity will be identified in the form of depreciation value index, material, labor, energy, and maintenance, and know the total production value index. The results of this study obtained a partial productivity index on the declining workforce, other partial productivity such as depreciation, material, labor, energy, and maintenance have increased while the index value of total productivity increased after a change in the sterilizer system.
Aplikasi Melati Air Dalam Menurunkan BOD dan COD Limbah Cair Kelapa Sawit Gusmita, Mike; Fitrada, Wathri; Ervil, Riko
Jurnal Teknik dan Teknologi Tepat Guna Vol. 1 No. 2 (2022): Jurnal Teknik dan Teknologi Tepat Guna
Publisher : Riset Sinergi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62357/j-t3g.v1i2.119

Abstract

Wastewater produced oil industry mustard t containing organic content of high BOD and COD. BOD and COD stating the amount of dissolved oxygen needed by microorganisms to decompose the material organic of a waste. Therefore, high levels of BOD and COD must be lowered in organic levels before being discharged into the water. One way that can be done using phytoremediation technology that is environmentally friendly. The purpose of this research to see the effectiveness of the water jasmine plant's ability to reduce levels of BOD and COD in palm oil industrial wastewater. This study used a batch system with variations in the number of plants used were 4, 12 and 16 individual plants and variations in contact time of 5 and 9 days. The initial testing of the waste obtained a BOD value of 4,236 mg / L, and a COD value of 5760 mg / l. After the phytoremediation test was carried out, the best decrease in BOD values was up to 96 mg / L and the greatest efficiency was obtained 97.73%. The decrease also occurred very well in COD, namely up to 342 mg / L with the greatest efficiency obtained by 93.88%. The decrease in the optimum levels of BOD and COD was found in variations in the number of plants 16 and on the 9th day. This proves that these plants are effective in eliminating liquid waste levels in the palm oil industry, especially BOD and COD
Co-Authors Elmawati Elmawati Fadhly, Ahmad Gusmita, Mike Hisni Rahmi Mariza Syahyuda, Nelsy Marlina Amsya, Riam Nelvi, Afni Nofriadiman, Nofriadiman Rhamadan, Dian Yudistira Wathri Fitrada