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KOMPARASI POTENSI PIROLISA LIMBAH PLASTIK PERKOTAAN UNTUK MENDAPATKAN BAHAN BAKAR CAIR SETARA BENSIN Reno Pratiwi; Wiwik Dahani; Kartika Fajarwati H
JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Vol. 2 No. 2 (2017)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Trisakti

This reseacrh aims to find out how big the potential of processing various types of plastic into fuel equivalent of gasoline. The types of plastics observed are the types that are widely available in urban wastes, the types of Light Density Polyethylene (LDPE), High Density Polyethylene (HDPE) and Polypropylene (PP). Plastic processing using pyrolysis method, with the amount of time and temperature of the process as a variable that observed its effect on the product produced. The analysis of the products using FTIR will be compared with the standard FTIR of gasoline, as well as the density test which is also compared with the standard density of gasoline applicable in Indonesia. The results show that optimum conditions can be achieved at 60 minutes process time, and different process temperatures on each type of plastic. Plastics of LDPE, HDPE and PP types have optimum temperatures of 500 oC, 530 oC and 550 oC, respectively. Percentage of results at optimum time and temperature conditions were 87.3%, 93% and 83%, respectively. Although the percentage of the results obtained is not much different from the other two types of plastics, but based on the similarity of the product with the characteristics of fuel gasoline, PP plastic type gives the closest results in terms of FTIR analysis and measurement of gasoline density. Thus PP type plastic has the potential to develop its processing into alternative fuel equivalent gasoline.

KOMPARASI POTENSI PIROLISA LIMBAH PLASTIK PERKOTAAN UNTUK MENDAPATKAN BAHAN BAKAR CAIR SETARA BENSIN Reno Pratiwi; Wiwik Dahani; Kartika Fajarwati H
JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Vol. 2 No. 2 (2017)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/pdk.v2i2.2469

This reseacrh aims to find out how big the potential of processing various types of plastic into fuel equivalent of gasoline. The types of plastics observed are the types that are widely available in urban wastes, the types of Light Density Polyethylene (LDPE), High Density Polyethylene (HDPE) and Polypropylene (PP). Plastic processing using pyrolysis method, with the amount of time and temperature of the process as a variable that observed its effect on the product produced. The analysis of the products using FTIR will be compared with the standard FTIR of gasoline, as well as the density test which is also compared with the standard density of gasoline applicable in Indonesia. The results show that optimum conditions can be achieved at 60 minutes process time, and different process temperatures on each type of plastic. Plastics of LDPE, HDPE and PP types have optimum temperatures of 500 oC, 530 oC and 550 oC, respectively. Percentage of results at optimum time and temperature conditions were 87.3%, 93% and 83%, respectively. Although the percentage of the results obtained is not much different from the other two types of plastics, but based on the similarity of the product with the characteristics of fuel gasoline, PP plastic type gives the closest results in terms of FTIR analysis and measurement of gasoline density. Thus PP type plastic has the potential to develop its processing into alternative fuel equivalent gasoline.

KOMPARASI POTENSI PIROLISA LIMBAH PLASTIK PERKOTAAN UNTUK MENDAPATKAN BAHAN BAKAR CAIR SETARA BENSIN Reno Pratiwi; Wiwik Dahani; Kartika Fajarwati H
JURNAL PENELITIAN DAN KARYA ILMIAH LEMBAGA PENELITIAN UNIVERSITAS TRISAKTI Vol. 2 No. 2 (2017)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Trisakti

This reseacrh aims to find out how big the potential of processing various types of plastic into fuel equivalent of gasoline. The types of plastics observed are the types that are widely available in urban wastes, the types of Light Density Polyethylene (LDPE), High Density Polyethylene (HDPE) and Polypropylene (PP). Plastic processing using pyrolysis method, with the amount of time and temperature of the process as a variable that observed its effect on the product produced. The analysis of the products using FTIR will be compared with the standard FTIR of gasoline, as well as the density test which is also compared with the standard density of gasoline applicable in Indonesia. The results show that optimum conditions can be achieved at 60 minutes process time, and different process temperatures on each type of plastic. Plastics of LDPE, HDPE and PP types have optimum temperatures of 500 oC, 530 oC and 550 oC, respectively. Percentage of results at optimum time and temperature conditions were 87.3%, 93% and 83%, respectively. Although the percentage of the results obtained is not much different from the other two types of plastics, but based on the similarity of the product with the characteristics of fuel gasoline, PP plastic type gives the closest results in terms of FTIR analysis and measurement of gasoline density. Thus PP type plastic has the potential to develop its processing into alternative fuel equivalent gasoline.

THE UNDERCURRENT INDONESIA’S CITY GAS SECTOR WITH THE MODERATING WORK FORCES Andry Prima; Havidh Pramadika; Mustamina Maulani; Arinda Ristawati; Wiwik Dahani; Prana Ugiana Gio
PETRO:Jurnal Ilmiah Teknik Perminyakan Vol. 11 No. 2 (2022): JUNI
Publisher : Jurusan Teknik Perminyakan Fakultas Teknologi Kebumian dan Energi Universitas Trisakti

The continues dynamics as the object of observation in studying the milestones that any company or industry should consistently achieve in long-term growth expected to be stable. The same applies to the natural gas distribution sector or known as city gas. The movement of data from year to year continues to depict an increasing trend with regard to the city gas sector in Indonesia. The objective of this particular study is to provide a better understanding of the city gas distribution sector in Indonesia and to provide a clearer picture of a number of latent variables that must be accommodated to optimize the distribution of natural gas to cities in Indonesia. The methodology used in this study is the Structured Equation Method (SEM). In a more specific description, path analysis developed from multivariate regression is used to analyze the correlation between indicators and latent variables so as to determine the validity of the multiple regression model. Still related to the research method, by sorting the data collection released from the Indonesian Central Statistics Agency and grouping data from indicators of city gas distribution companies during the period 2010-2020 divided into income, number of workers, wages, the volume of city gas distributed, and costs associated with operations. The results of this work are to provide input to the authorities and other stakeholders in order to optimize the growth of Indonesia's gas distribution sector. The value or originality of this study is to reveal the impact of latent variables that have the status of moderating variables. Study limitations - Due to the inaccessibility of non-disclosure primary data and limited data availability, it is assumed that the data obtained from the Indonesian Central Statistics Agency is valid to describe the explanatory variables of the city gas distribution sector in Indonesia.

Preparation and Characterization of Natural Zeolite Minerals to Reduce Free Fatty Acid Levels in Used Cooking Oil Fadliah Fadliah; Riskaviana Kurniawati; Reno Pratiwi; Aqlyna Fattahanisa; Wiwik Dahani; Syamidi Patian; Emmy Fatmi Budhya
Journal of Earth Energy Science, Engineering, and Technology Vol. 5 No. 3 (2022): JEESET VOL. 5 NO. 3 2022
Publisher : Penerbitan Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/jeeset.v5i3.14218

Zeolite as a catalyst can increase its activity by carrying out physical and chemical activation processes. Physical activation can be activated by reducing the size of the zeolite through grinding and sieving methods, from the physical activation process it can increase the surface area of the zeolite. In this study, zeolite was chemically activated by acid activation method by immersing natural zeolite with HCl and HF. The oxide compound in the activated zeolite was characterized using XRF. The activated zeolite was used to reduce the free fatty acid levels with variations in the addition of 7 to 10 grams of zeolite. The content of free fatty acids is then compared with the quality requirements of cooking oil according to SNI 01-3741-2013. The results of the research conducted showed that there were differences in the content of oxide compounds in zeolite before and before activation with differences in SiO2 content, namely 69.4% before activation and an increase of 82.1% after activation. The results of the state test including physical properties, odor, and taste tests of used cooking oil that have been purified indicate that used cooking oil that has been purified meets the quality requirements of cooking oil based on SNI 01-3741-2013. Used cooking oil that has been purified has a normal taste, does not smell. rancid and yellow. The content of free fatty acids meets the requirements of SNI 01-3741-2013 for all variations of the addition of zeolite with the highest decreasing value obtained at the addition of 10 g of zeolite with a free fatty acid content value of 0.22%.

Pelatihan Pembuatan Mineral Tawas Berbahan Dasar Limbah Kaleng Bekas Bagi Masyarakat Sukmajaya, Depok Riskaviana Kurniawati; Wiwik Dahani; Irfan Marwanza; Fadliah Fadliah; Arinda Ristawati; Muhammad Napis Fikri
Abdimas Universal Vol. 6 No. 2 (2024): Oktober (In Press)
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Balikpapan (LPPM UNIBA)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36277/abdimasuniversal.v6i2.305

All human activities inevitably produce waste. The amount of waste increases as the city grows. Sukmajaya District, Depok City is one of the districts that has the potential for very high waste accumulation. This area is a place for immigrants who work in Jakarta. This has a negative impact, namely the increase in the number of Final Disposal Sites (TPA) from year to year. The recycling process is a solution that can save energy and reduce landfill waste. The use of can waste as raw material in making alum or potassium aluminate sulfate K[Al(SO4)2.12H2O] is very relevant. The basic material used in making alum cans has the advantage of being more economical and can help reduce packaging can waste which has the potential to pollute the environment. The team held training in making alum minerals from used can waste in Sukmajaya District, Depok City. This activity aims to educate the public in utilizing used can waste into alum mineral products. People can use it to purify water in an environmentally friendly and economical way. The results of the training activities showed an increase in participants' awareness and skills in managing canned waste into value-added products. The number of training participants increased from 40% before training to 90% after training. Apart from that, participants' skills in making alum from used can waste also increased from 25% before the training to 85% after the training. It is hoped that this training can make a positive contribution in efforts to manage waste sustainably and protect the environment.

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

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.

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