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A. Silvan Erusani
UIN Syarif Hidayatullah Jakarta
Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Public Health Social Sciences Other

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ANALISIS EMISI CO2 DI KAMPUS UIN SYARIF HIDAYATULLAH JAKARTA A Silvan Erusani; Nurmaya Arofah
Jurnal Ilmu Lingkungan Vol 16, No 1 (2022): Jurnal Ilmu Lingkungan
Publisher : Program Pascasarjana Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/jil.16.1.p.79-86

Abstract

The purpose of this study was to determine carbon dioxide (CO2) emissions generated by the population of the academic community (lecturers, employees and students) and motor vehicle transportation in the campus of UIN Syarif Hidayatullah Jakarta, which is located on Jalan Juanda as the study location because it is the center of the campus. The method used in this research is survey and calculation. The calculation results show that CO2 emissions produced by humans from all residents on campus 1 UIN Syarif Hidayatullah Jakarta, totaling 24,126 people, produce CO2 emissions of 3,136 kg/hour or equivalent to 25,091 kg/day or equivalent to 6,021,849 kg/year. Meanwhile, the amount of CO2 emissions from motor vehicles (cars and motorcycles) is 4299,121 kg/hour or the equivalent of 8,254.3 tons/year.
Pengurangan Kadar N dan P pada Limbah Cair Laboratorium secara Fitoremediasi Menggunakan Enceng Gondok (Eichornia crassipes) Nurmaya Arofah; A. Silvan Erusani
Al-Kauniyah: Jurnal Biologi Vol 7, No 1 (2014): Al-Kauniyah Jurnal Biologi
Publisher : Department of Biology, Faculty of Science and Technology, Syarif Hidayatullah State Islami

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/kauniyah.v7i1.2708

Abstract

Laboratory liquid waste contains both metal, nonmetal, organic and anorganic content. If it is discharged directly to environment, it will cause pollution that is harmful for living thing. Data of waste survey result in 2009-2010 indicated that liquid waste of Laboratory in Chemical Engineering Department, Gadjah Mada University (JTK UGM) consist of various complex compound such as NH4+, PO43-. JTK UGM has wastewater treatment plant (WWTP) to deal with environmental pollution coming from waste of each laboratory and have three process, anaerobe activated sludge, aerobe and phytoremediation. Because the laboratory’s waste was very complex, the WWTP have not operated maximally yet. So, it is necessary research on wwtp processing step, particularly for phytoremediation process using water hyacinth. Objective of this research was to study effect of concentrations N and P on adaptability and capability of water hyacinth to grow. In addition it developed a mathematical model to estimate of N and P concentration decrease rate in liquid. The research was done in batch by planting water hyacinth that has been acclimated in wastewater containing N-NH4OH and P-H3PO4. Parameter observed is N and P concentration in liquid. The result indicated that water hyacinth can absorb N and P. Water hyacinth grow well in N-NH4OH concentration of 9.651 ppm and 15.573 ppm and P-H3PO4 concentration of 2.013 ppm and 2.7373 ppm. It was marked with additional weight and colour of water hyacinth leaves of fresh green. Mathematical model presented to estimate N concentration decrease rate indicated good result in experiment. However, P concentration decrease in liquid phase, the presented model is still not good, because P nutrient decomposition process has not been accommodated during absorption by water hyacinth.
ANTHROPOGENIC ACTIVITIES OF ILLEGAL MINE RESISTANCE TO THE ENVIRONMENT AND SOCIAL ECONOMIC DYNAMICS A. Silvan Erusani; Ardian Chandra Aji
International Journal of Social Science Vol. 1 No. 5: February 2022
Publisher : Bajang Institute

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.53625/ijss.v1i5.1370

Abstract

This study aims to assess the anthropogenic activities of illegal mining on the environment and socio-economic dynamics at the location of gold mining without a permit in Madong Raya Village, Tanah Pinoh District, Melawi Regency. The research approach is qualitative with the aim of producing a descriptive analysis related to the data collected based on the construction of existing theories and literature. Field findings reveal that anthropogenic activities are still carried out by local communities in the defense of illegal mining and have an impact on environmental degradation and meet daily needs in financing families and the strength of interaction between residents in utilizing natural resources. Research data analysis was carried out in a descriptive way, namely the impact of illegal mining and social impacts society from anthropogenic activities causing prolonged degradation. Anthropogenic activities cause the decline in environmental quality and local people's livelihoods in meeting daily needs as well as developing community capacity and empowerment in a participatory, equitable, and environmentally friendly manner so as to create social and economic resilience as well as resilience to the effects of external changes by not carrying out mining activities. gold is illegal considering that there are casualties due to the mining
Analisis Geometri Peledakan Untuk Mendapatkan Hasil Fragmentasi dan Digging Time Optimal di Pit North Tutupan PT. SIS site Adaro (PT. Adaro Indonesia) Ahmad Erlangga Adji; M Bambang Soegeng; A Silvan Erusani
Jurnal Inovasi Pertambangan dan Lingkungan Vol 1, No 1 (2021): Jurnal Inovasi Pertambangan dan Lingkungan
Publisher : Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jipl.v1i1.20378

Abstract

Blasting activity is really important thing to support production achievement in mine. Especially on drilling and blasting production. Good drilling also will affect the fragmentation outcome. Geometry applications have to conductbased on rock characteristics in every blasting location. In this case, correlation between burden and spacing in blasting geometry, how powder factor impact to fragmentation and also digging time excavator. The impact of change geometry blasting will result the appropriate digging time from fragmentation. PT. SIS digging time target is 12 seconds for all different classes of excavators. Hence, it is expected that the acquisition of digging time is reached. Thus, the production process will be influenced.Keywords - Geometry, Fragmentation, and Digging Time
Pengaruh Perbaikan Rolling Resistance Pada Jalan Angkut Terhadap Produktivitas Alat Muat Dengan Menggunakan Aplikasi TALPAC 10.2 di PT. lotus SG Lestari Putra Desandra Wicaksana; A Silvan Erusani; Milawarma Milawarma
Jurnal Inovasi Pertambangan dan Lingkungan Vol 1, No 1 (2021): Jurnal Inovasi Pertambangan dan Lingkungan
Publisher : Syarif Hidayatullah State Islamic University

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15408/jipl.v1i1.20627

Abstract

Productivity is an important thing in doing mining business, there are many parameters that affect such as the use of the equipment used, the condition of the operator at work, the condition of the front of the mining area, and also the haul roads used to transport the mining products which have a strong influence on productivity. This research will examine the effect of the haul road on productivity, the haul road itself has many parameters such as grade, crossslope, rolling resistance, and the material used for road construction. This research only focuses on improving rolling resistance. This research was conducted with the aim of knowing the effect of rolling resistance improvement on the productivity of the loading device. This research was conducted using the TALPAC 10.2 application. The tools used in this study were the Komatsu PC-400 loading tool and the Komatsu HD 325-5 for transportation. From the results of the TALPAC calculation, it is expected that there will be an increase in productivity and it can be seen that after the road is repaired the productivity of the Komatsu PC-400 increases from 90.96 bcm / hour to 96.89 bcm / hour. Keywords : Rolling Resistnace, Productivity, TALPAC
Pengelolaan Sarana dan Prasarana Pendukung Ramah Lingkungan di Sekolah Adiwiyata (Studi di SMAN 4 Tangerang Selatan) Rahmat Fauzi; Sujiyo Miranto; Silvan Erusani
INTELEKTIUM Vol 3 No 2 (2022): INTELEKTIUM
Publisher : Neolectura

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.37010/int.v3i2.1055

Abstract

This study aimed to determine the management of environmentally friendly facilities and infrastructure at Adiwiyata School, Study at SMAN 4 South Tangerang. This research is a combination research of sequential explanatory model with survey method to collect data from samples that represent the main data with questionnaires, structured interviews and so on. The sample used in the study amounted to 128 students, 25 educators, 7 janitors, and 6 canteen traders. The percentage of student questionnaire data shows 73% of students and the percentage of teacher questionnaire data shows 83% of educators in the management of supporting facilities and infrastructure in schools. Some things that need to be done optimally by the school, namely the avaibility of separate bins, music rooms accompanied by noise suppressors, biogas and organizational structure to manage school sanitation facilities. In addition, improving the quality of healthy and environmentally friendly canteen services needs to be improved
Phytoremediation of Mercury and Cyanide Contaminated Soils by Physic Nut (Jatropha curcas L.) and Citronella Grass (Cymbopogon nardus) A. Silvan Erusani; Nurmaya Arofah; Fabika Azahra; Nurhasni Nurhasni; Titik Inayah
Jurnal Ilmu Lingkungan Vol 22, No 6 (2024): November 2024
Publisher : School of Postgraduate Studies, Diponegoro Univer

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jil.22.6.1581-1593

Abstract

Mercury and cyanide are compounds that have the potential to pollute the environment, both of which are found in the tailing waste of artisanal and small-scale gold mining (ASGM). The purpose of this study was to determine the ability of physic nut (Jatropha curcas L.) and citronella grass (Cymbopogon nardus) to absorb mercury and cyanide in soils polluted with tailings waste based on the value of transfer factors. During this research stage, the remediation of soil polluted with amalgamation tailings and cyanide tailings was carried out for 28 days. Soil sampling was carried out every seven days for 28 days, while root and leaf sampling was carried out on day 28, analysis of mercury and cyanide content in soil and plants using atomic absorption spectroscopy (AAS) and UV-visible spectrophotometer. After 28 days of remediation, mercury and cyanide levels may decrease in soil by 93.7% for mercury and 81.8% for cyanide. The decrease can be caused by absorption and accumulation in plants, where mercury and cyanide accumulate more in physic nut than citronella grass. Physic nut and citronella grass have a transfer factor value of <1 for mercury and cyanide, so they are an excluder plant, except for the accumulation of mercury in physic nut from cyanide tailings soil, which has a transfer factor value of >1, which is an accumulator plant.
Studi Fitoremediasi Merkuri Pada Tailing Amalgamasi Penambangan Emas Rakyat Menggunakan Akar Wangi (Vetiveria zizanioides L.) Arofah, Nurmaya; Erusani, A. Silvan; Azahra, Fabika
Dinamika Lingkungan Indonesia Vol 11, No 1 (2024)
Publisher : Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31258/dli.11.1.p.23-32

Abstract

Heavy metal pollution in the soil has become a global problem along with the industrialization process, mining, and laboratory activities, as well as daily activities. Artisanal and small-scale gold mining (ASGM) activities using amalgamation methods have the potential to pollute the environment because they produce tailings with mercury (Hg) metal content, which causes various environmental problems even though they are in very low concentrations. The purpose of this study was to determine the characteristics of tailings polluted with Hg metal, determine Hg levels in soils that have been absorbed by Vetiveria zizanioides, determine the effect of compost addition on soil quality improvement, and determine the factor of mercury transfer from soil to plants. The results showed that the mercury concentration in amalgamation tailings of 201.6 mg/kg may decrease after 28 days of remediation to 13.72 mg/kg at TTG1, 170.73 mg/kg at TTG2, and 53.4 mg/kg at TTG3. The ability of Vetiveria zizanioides L. to absorb mercury in amalgamated tailings without adding compost can be seen from the TTG1 transfer factor value of 9.69.   
Analysis of Illegal Gold Mining (PETI) Impact on The Environment with TDS, TSS, Mercury and Cyanide Parameters in Water and Sediment of Cikaniki River Erusani, Awang Silvan; Arofah*, Nurmaya; Sofatunida, Sofatunida; Fauzi, Talitha Hasna; Jabbar, Muhammad Andi
Aceh International Journal of Science and Technology Vol 14, No 1 (2025): April 2025
Publisher : Graduate School of Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/aijst.14.1.43432

Abstract

Gold production from artisanal mining extraction reaches 120 tons annually, providing significant environmental and economic impacts for the community. The processing method used triggers environmental pollution, because it produces tailings in the form of metal mercury and cyanide. This research was conducted at the location of post Illegal gold mining (PETI), although PETI activities have been disciplined, but based on the characteristics of mercury which is difficult to dissolve in water, easily binds to suspended solids and easily deposited to the bottom of the waters, can pollute river sediments. The purpose of the study was to determine the levels of Total Dissolved Solid (TDS), Total Suspended Solid (TSS), mercury and cyanide in the Cikaniki River Watershed, based on Government Regulation No. 22 of 2021. The purposive sampling method was used in determining the sampling location at 3 observation stations for surface water and sediment, namely station 1 area where is former gold processing. Station 2 river body where former PETI produces mercury waste, station 3 is a place where there is no gold processing. TDS and TSS measurements using the gravimetric method, mercury and cyanide levels using ICP-OES. The results of laboratory sediment analysis of 3 observation location in Cisarua Village, Curug Bitung Village, and Lukut Village, for the TDS and TSS parameters, mercury was detected at the highest level at point 3 in Lukut Village. Luku Village is the most downstream location of the Cikaniki River which is located very far form the peoples gold processing site. This concludes that after PETI activities occur, the distribution of mercury (Hg) waste spread to the most downstream areas of the Cikaniki River is always present even though its presence is still below environmental quality standards.
Co-Authors Ahmad Erlangga Adji Ardian Chandra Aji Azahra, Fabika Fabika Azahra Fauzi, Talitha Hasna Jabbar, Muhammad Andi M Bambang Soegeng Milawarma Milawarma Nurhasni Nurhasni Nurmaya Arofah Putra Desandra Wicaksana Rahmat Fauzi Sofatunida, Sofatunida Sujiyo Miranto, Sujiyo Titik Inayah