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All Journal Journal of Applied Geospatial Information Civil and Environmental Science Journal (CIVENSE) Jurnal Pensil : Pendidikan Teknik Sipil Jurnal Daur Lingkungan Jurnal Engineering Jurnal Talenta Sipil Jurnal Sains dan Teknologi Envirotek : Jurnal Ilmiah Teknik Lingkungan

Ilfan, Freddy

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Author-ID : 1852337

Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Dentistry Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Environmental Science Health Professions Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Mechanical Engineering Medicine & Pharmacology Nursing Physics Public Health Veterinary Other

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Articles

Analysis of Cross-Sectional Capacity of the Jambi River in the Muaro Jambi Temple About Various Times of Flooding Using HEC-RAS Software Mayasari, Putri; Ilfan, Freddy; Yasdi, Yasdi; Rimba, Rimba
Civil and Environmental Science Journal (CIVENSE) Vol 4, No 2 (2021): IN PRESS
Publisher : Fakultas Teknik UB

Show Abstract | Download Original | Original Source | Check in Google Scholar

Jambi River is one of the rivers located in the Muaro Jambi Temple Complex Area, Muaro Jambi Regency, Jambi Province. Muaro Jambi Temple is one of the tourist attractions in Jambi Province. This study aims to find the capacity of Jambi River tested by planned flood discharge utilizing (synthetic unit hydrograph) HSS Nakayasu method for a return period of two, five, ten, twenty-five, fifty and hundred years. HEC-RAS software used to analyse the water level in the Jambi River towards the flood potential that causes the submerging of the Kedaton Temple building. This research used the log Pearson type III method to calculate the planned rain return period and used the Nakayasu synthetic unit method to calculate the planned flood discharge. The analysis showed that the Jambi River could not load the flood discharge in the five, ten, twenty-five, fifty, and one hundred years return period at several measurement points: river sta-1, river sta-2 and river sta-5. The floodwater level did not cause the Kedaton Temple building to be flooded from the simulation result.

Lichen Sebagai Bioindikator Pencemaran Udara Di Gerbang Kota (Gateway) Kota Jambi Febri Juita Anggraini; Ria Resti Oktapiani; Freddy Ilfan; Zuli Rodhiyah
Jurnal Daur Lingkungan Vol 4, No 1 (2021): Februari
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/daurling.v4i1.61

The gateway of city is the point of entry and exit for traffic activities, the high traffic activity that occurs causes air pollution, thereby reducing air quality. The use of lichen as a bioindicator is considered more efficient than using other indicator tools or machines. Purpose of this study was to determine the level of air pollution at the gateway of Jambi city using lichen as a bioindicator and to determine the concentration of Pb metal content in lichen. The research method used is exploration with roaming methods. The location of the research was carried out at the West Gate of Simpang Rimbo, the South Gate of Paal 10, and the East Gate of Aurduri 2. The Pb metal test in lichen was carried out using Inductively Coupled Plasma Mass Spectroscopy analysis method (ICP-MS). Based on the measurement results, the Aurduri 2 location is included in the location of low traffic density with an average number of 18,509 vehicles/ day. The location with moderate traffic density is Paal 10 with an average number of 31,941 vehicles/ day. The vehicle traffic density with the highest number was the Simpang Rimbo location with an average number of 45,041 vehicles/ day. The highest concentration of Pb in lichen was at the Aurduri 2 sampling location with a Pb metal value of 3.01 ppm and the lowest at the Simpang Rimbo location of 2.31 ppm.

Optimalisasi Desain Instalasi Pengolahan Air Limbah Tempat Pemrosesan Akhir Talang Gulo Lama Febri Revelino Sitorus; Freddy Ilfan; Winny Laura Christina Hutagalung
Jurnal Engineering Vol. 2 No. 1 (2020): Volume 2, Nomor 1, Januari 2020
Publisher : Universitas Jambi

Lindi yang merupakan air limbah dari timbulan sampah dan mengandung mikroorganisme, bahan organik, dan anorganik yang berpotensi mencemari air dan tanah sekitar TPA. Kualitas lindi dapat dipengaruhi oleh faktor komposisi timbulan sampah serta lamanya timbulan sampah. Penelitian ini bertujuan menghitung debit lindi yang dihasilkan di TPA Talang Gulo Lama, mengkaji kualitas lindi TPA Talang Gulo Lama yang meliputi parameter BOD, COD, dan TSS, serta merancang unit pengolahan untuk mengoptimalisasi IPAL TPA Talang Gulo Lama. Dengan menggunakan Metode Neraca Air (Water Balance Method) oleh Thorntwaite, perkolasi tertinggi yaitu 86,8 mm/bulan atau 0,086 m/bulan, sehingga debit air lindi di TPA Talang Gulo Lama adalah 249,4 m3/hari atau 0,0029 m3/s. Dari hasil analisis sampel lindi TPA Talang Gulo Lama, diketahui bahwa kualitas parameter COD, BOD, dan TSS adalah masing-masing 2.406 mg/L, 1.046 mg/L, dan 440 mg/L. Dengan menggunakan proses pengolahan Anaerobic Baffled Reactor persentase penyisihan tiap parameter dapat mencapai 80% dan pengolahan menggunakan Aerated Lagoon persentase penyisihan hingga 90%. Sehingga efluen IPAL menjadi 48,12 mg/L (COD); 30,93 mg/L (BOD); 8,8 mg/L (TSS) dan telah memenuhi kriteria baku mutu menurut Peraturan Menteri Lingkungan Hidup dan Kehutanan RI Nomor 59 Tahun 2016.

POTENSI TUMBUHAN LOKAL SEBAGAI AGEN FITOREMEDIASI UNTUK MENURUNKAN KADAR LOGAM MERKURI (Hg) PADA LAHAN BEKAS PENAMBANGAN EMAS TANPA IZIN DI KABUPATEN SAROLANGUN, JAMBI Fatur Rahman; Freddy Ilfan; Zuli Rodhiyah; Mahya Ihsan
Envirotek : Jurnal Ilmiah Teknik Lingkungan Vol 13 No 2 (2021): Envirotek : Jurnal Ilmiah Teknik Lingkungan
Publisher : Program Studi Teknik Lingkungan, Universitas Pembangunan Nasional Veteran Jawa Timur

Illegal Gold Mining (PETI) is activity of gold mining by gold miners have not license. The negative impacts PETI is mercury contamination. The efforts minimize mercury contamination by phytoremediation. This research aimed to discover local plants have potential reducing mercury (Hg) contamination. This research used purposive sampling technique and conducted in Monti Village, Sarolangun, Jambi. Inventory plants obtained 14 species specifically, Macaranga sp., Paspalum sp., Trema tomentosa, Imperata cylndrica, Lophatherum sp., Eleusine sp., Molineria sp., Lycopodium sp., Gleichenia linearis, Ipomea sp., Scleria sp., Eleocharis interstincta, Melastoma sp., and Phragmites sp. 14 plants, three plants dominated particularly, Phragmites sp. (37.35%), Melastoma sp. (30.64%), and Eleocharis interstincta (25.41%). Phragmites sp. have BAC values (0.381), BCF (0.606), TF (0.628), Melastoma sp. have BAC values (0.170), BCF (0.333), TF (0.511), and Eleocharis interstincta have BAC values (0.245), BCF (0.441), TF (0.555). The calculation result BAC, BCF and TF obtained Phragmites sp. have hight values.

Analisis Daya Tampung Beban Pencemar Biochemical Oxygen Demand (Bod) dan Chemical Oxygen Demand (COD) di Sungai Tembuku Kota Jambi Menggunakan Model QUAL2KW Freddy Ilfan; Lailal Gusri; Winny L.C.H; Citra Rebekka Maulina Siregar
Jurnal Daur Lingkungan Vol 5, No 2 (2022): Agustus
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/daurling.v5i2.145

Tembuku River is one of the tributaries of Batanghari River in Jambi City which is located across Thehok Village to Simpang Lampu Merah Sijenjang-Pasar Kasang. Tembuku River has the highest pollution level compared to other tributaries with the BOD value of the upstream is 38,5 mg/l and downstream is 86 mg/l, the COD value of the upstream is 42,5 mg/l, and the downstream is 95 mg/l. This research was conducted to analyze the pollutant Load Capacity of Biochemical Oxygen Demand (BOD) and Chemical Oxygen Demand (COD) that can be received by Tembuku River using Qual2kw model. Qual2kw model is a recommendation model from Peraturan Menteri Negara Lingkungan Hidup no. 1 Tahun 2010 Tentang Tata Laksana Pengendalian Pencemaran Air to calculate the capacity of pollutant load. Based on the research and analysis, the result of pollutant load capacity in Tembuku River is the BOD parameter has 180,9216 kg/day in segment 1, 62,6249 kg/day in segment 2, and 319,3344 kg/day in segment 3, for COD parameter the pollutan load capacity is 815,4432 kg/day in segment 1, 103,52448 kg/day in segment 2, and 1699,7471 kg/day in segment 3. So the value of pollutant load capacity in all parameters and each segment has positive value stating the value of pollutant load capacity can be received by Tembuku River.

Indeks Beban Pencemar Sebagai Penentu Tingkat Pencemaran Pada Lahan Bekas Pertambangan Emas Tanpa Izin Surya Sumando Putra Panggabean; Zuli Rodhiyah; Freddy Ilfan; Mahya Ihsan
INSOLOGI: Jurnal Sains dan Teknologi Vol. 1 No. 5 (2022): Oktober 2022
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v1i5.942

Sarolangun Regency is a district that has the potential for gold metal mineral natural resources. This potential causes many illegal gold mining activities (PETI) in the area. It is also suspected that PETI activities can cause environmental damage and pollution in the activity area and downstream from the PETI location. Environmental pollution that occurs is caused by the disposal of gold processing waste (tailings) into water bodies and groundwater. Waste generated from gold mining activities mainly contains mercury (Hg) and lead (Pb). The purpose of this study was to analyze the level of heavy metal pollutants (Hg and Pb) using the contamination factor (CF), the pollutant load index (PLI), and the geoaccumulation index (I_geo) on former PETI in Sarolangun Regency. The sampling technique was carried out by a purposive sampling technique and the sample taken was soil. Heavy metal concentration data will be calculated using the CF, I_geo, and PLI index formulas. Hg concentrations were 0.86 mg/kg, 0.77 mg/kg, and 0.80 mg/kg in three sampling areas, and lead concentrations were 0.51 mg/kg, 0.54 mg/kg, and 0.53 mg/kg. Based on the analysis of CF calculations and I_geo, Hg(mercury) has more potential to become a pollutant at the study site (CF>6), (2<I_geo<3). On the other hand, the study site was not polluted by lead based on the CF value and geoaccumulation index. The overall PLI calculation of Hg and Pb stated that the research location was not included in the polluted category with a PLI value <1.

Analisis Kandungan Nitrat dan Nitrit pada Air Tanah di Sekitar Perkebunan Kelapa Sawit Winny Laura Christina Hutagalung; Rizky Mutia Puteri Rei; Freddy Ilfan
INSOLOGI: Jurnal Sains dan Teknologi Vol. 1 No. 5 (2022): Oktober 2022
Publisher : Yayasan Literasi Sains Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55123/insologi.v1i5.1040

The research was conducted on oil palm plantations in Sumber Harapan Village with an area of 1,585 hectares of oil palm plantations or 92.66% of the total area of 1,710.51 hectares of village. This study was conducted with the aim of knowing the relationship and effect of distance, groundwater level, fertilization dose and time and condition of dug wells on nitrate and nitrite concentrations in the study area and the distribution of nitrate and nitrite concentrations in ground water around oil palm plantations Sumber Harapan Village. Determination of the location of the sample points was carried out using the purposive sampling method. Nitrate and nitrite compound tests were carried out on 15 groundwater sample points using the Palintest 7500 photometer. In the results, 14 units of dug wells (93.33%) are unstandard and 1 unit (6.67%) is following standar based on the Guidelines for Housing and Rural Settlement Development Criteria for PUPR RI number 5 of 2016. The results showed that the highest nitrate concentration was at location S14 at 4.140 mg/l and the lowest nitrate was at location S13 at 0.063 mg/l. The highest nitrite concentration value was at location S4 of 0.028 mg/l and the lowest nitrite was at S14 of 0.000 mg/l. Concentrations of nitrate and nitrite are evenly distributed throughout the study area with a radius of 100 meters from the groundwater sample point. The results showed that the concentration of nitrate and nitrite was still below the quality standard based on the Regulation of the Minister of Health Number 32 of 2017

Analysis of Design Flood Discharge and Water Level Case Study of the Batang Singkut River Section Sarolangun Regency Fitria Melany; Harmes Harmes; Freddy Ilfan
Journal of Applied Geospatial Information Vol 6 No 2 (2022): Journal of Applied Geospatial Information (JAGI)
Publisher : Politeknik Negeri Batam

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30871/jagi.v6i2.4852

The Batang Singkut River section is a tributary of the Batang Asai River which passes through Pelawan District and Singkut District. This research was carried out by calculating the design flood discharge and modeling the water level using HEC-RAS. The starting point of the research is on the bridge around the Jambi University campus in Sarolangun Regency with the length of the river under review being 300 meters. The discharge data used is the maximum daily discharge for 10 years from 2011 to 2020. The method used to calculate the design flood discharge is the method of frequency analysis and distribution testing using the chi-square method. The analysis was carried out to find the design flood discharge frequency using the Pearson III log distribution type for return periods of 2 and 5 years. The calculated discharge is entered into the HEC-RAS to model the water level. The modeling results showthat at a 2-year return period for cross sections STA 0+00, STA 1+00, STA 1+50, STA 2+00, STA 2+50, and STA 3+00 are able to accommodate water with a discharge of 83.5026 m3/s, but for the STA 0+50 cross section it is unable to accommodate the amount of discharge generated. Whereas for the return period of 5 years the cross section of STA 0+00 to STA 2+50 is unable to accommodate water with a discharge of 118.4132 m3/s, while for STA 3+00 the cross section can hold water.

PLANNING OF CLEAN WATER DISTRIBUTION PIPELINE NETWORK AT UNIVERSITAS JAMBI KAMPUS PINANG MASAK MENDALO Freddy Ilfan; Winny Laura; Eki Kurniadi
Jurnal Pensil : Pendidikan Teknik Sipil Vol 12 No 1 (2023): Jurnal Pensil : Pendidikan Teknik Sipil
Publisher : LPPM Universitas Negeri Jakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21009/jpensil.v12i1.28761

In 2021 it is estimated that there are 19,836 people at Universitas Jambi Kampus Pinang Masak Mendalo. One of the most important aspects to support activities in Universitas Jambi Kampus Pinang Masak Mendalo is a clean water supply. This study aims to determine clean water needs, to analyse hydraulic factors such as water discharge, flow speed, water pressure, and head loss using EPANET program, and to calculate the budget required to build a water distribution pipeline system. The results of water distribution pipeline network design are clean water needs at Universitas Jambi Kampus Pinang Masak Mendalo as much as 665,910 liters/day or 18.4975 liters/second and at the maximum daily needs as much as 732,500 liters/day or 20.3472 liters/second in the projected year of 2031. Analyses of hydraulic factors in the pipeline distribution system using EPANET program and manual calculation give the same results, but there are some pipe segments that do not fulfill of flow velocity standard, that are on pipe A1 = 0.15 m/s, B1 = 0.08 m/s dan pipa B2 = 0.25 m/s. The cost required to build a clean water distribution pipeline network at the Universitas Jambi Kampus Pinang Masak Mendalo, is amounting Rp238,252,263.00,-

Evaluasi Kapasitas Saluran Drainase Sekunder di Jalan Kapten Pattimura Telanaipura Kota Jambi Menggunakan Software Hec-Ras Freddy Ilfan; Ade Nurdin; Nadia Tristhayanti
Jurnal Talenta Sipil Vol 6, No 1 (2023): Februari
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/talentasipil.v6i1.213

One of the areas in Jambi City that experience drainage system problems are the Telanaipura area, precisely on Jalan Kapten Pattimura. The area around the research site is a densely populated area and there are several shopping centers, restaurants, and a fairly high road user. When there is a large rain or rain for a long enough time, this area is often flooded with water as high as 0.2 - 0.8 meters which can cause quite a lot of losses for local residents and also for business owners in the area. From this, it can be said that the drainage channel at this location is less than optimal for collecting and draining rainwater discharge. In this case, it is necessary to conduct a study of hydrological analysis and hydraulics analysis of the drainage channel which is useful in helping to solve the problems that occur. This study used hydrological data in the form of monthly rainfall for the past 10 years and the geometry of secondary drainage channels on Jalan Kapten Pattimura Telanaipura. The method used in this study is in the form of hydrological analysis with the maximum rainfall method, gumbel, and calculation of plan discharge with a rational method. This Hydraulic analysis carried out uses the help of the HEC-RAS program to simulate the discharge of water flow in the drainage. Based on the results of the analysis, it can be concluded that the secondary drainage channel of Jalan Kapten Pattimura, Telanaipura District, Jambi City, cannot accommodate the flow discharge of the plan for periods 2, 5, and 10 years. This is due to sedimentation, high rainfall, suboptimal drainage channels in accommodating flow discharge, and the presence of piles of garbage. The solution to this problem is to deepen the dimensions of the drainage channel by 40–135 cm deep.

Co-Authors Ade Nurdin Citra Rebekka Maulina Siregar Eki Kurniadi Fatur Rahman Febri Revelino Sitorus Fitria Melany Gusri, Lailal Harmes Harmes Juita, Febri Mahya Ihsan Nadia Tristhayanti Putri Mayasari Ria Resti Oktapiani Rimba, Rimba Rizky Mutia Puteri Rei Surya Sumando Putra Panggabean Winny L.C.H Winny Laura Christina Hutagalung Yasdi Yasdi Zuli Rodhiyah

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