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Analisis Kualitas Jejak Karbon Akibat Penambahan Bangunan Gedung di Pondok Pesantren Miftahun Najah Muaro Jambi Herawati, Peppy; Adriansyah, Endi; Marhadi, Marhadi; Fadli, Muhamad
Jurnal Ilmiah Universitas Batanghari Jambi Vol 24, No 1 (2024): Februari
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jiubj.v24i1.4629

Abstract

The contribution to the increase in CO2 emissions can come from all the activities of construction workers who use energy such as the procurement of building materials, the use of transportation fuels, the activity of using electricity, and the activity of using LPG. The carbon footprint is a measure of the total amount of carbon dioxide (CO2) emissions originating from activities or the accumulation of daily activities. carbon footprint calculation using the IPCC 2006 method. The carbon footprint calculation results obtained from the development activities of the Miftahun Najah Islamic boarding school building in the procurement of building materials resulted in a carbon footprint of 2.8417 tons. CO2-eq, trucking activities, construction workers produced 550.7 tons. CO2-eq, the activity of using electricity produces a carbon footprint of 39.403 ton.CO2-eq/kWh, and the activity of using LPG produces a carbon footprint of 0.11 ton.CO2-eq. The purpose of measuring the quality of Carbon Dioxide (CO2) is to determine the concentration of CO2 during the development of buildings at the Miftahun Najah Islamic Boarding School.
Pemanfaatan Sampah Organik dan Tempurung Kelapa Menjadi Briket Ramah Lingkungan Saragih, Guntar Marolop; Marhadi, Marhadi; Kalsum, Siti Umi; Nita, Rezi Yusdian
Jurnal Ilmiah Universitas Batanghari Jambi Vol 24, No 3 (2024): Oktober
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jiubj.v24i3.5538

Abstract

The aim of this research is to determine the feasibility of producing environmentally friendly briquettes using organic waste and coconut shells as the main ingredients. 3 (three) briquette compositions, including: (1) 25% organic waste, equivalent to 75% coconut shell; (2) 75% organic waste, 25 percent coconut shell; and (3) 50% organic waste, 50 percent coconut shells. The research method used to analyze the water content, ash content and heating value of briquettes is a quantitative research method. The results of this research show that organic waste and coconut shells can be converted into environmentally friendly briquettes. Briquettes with a mixture composition of 75%:25% have a reduced ash percentage. Meanwhile, mixed briquettes containing 25%:75% have a low water content, meaning more coconut shell, the lower the water content and the better the properties of the briquettes.
Adsorben dari Lumpur Limbah untuk Penyisihan Kromium pada Fixed Bed Column Riyanti, Anggrika; Hadrah, Hadrah; Kasman, Monik; Marhadi, Marhadi; Samuel, Samuel
Jurnal Ilmiah Universitas Batanghari Jambi Vol 24, No 3 (2024): Oktober
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jiubj.v24i3.5577

Abstract

Sewage sludge is a major by-product of the wastewater biological treatment process. Wastewater Treatment Plants at Palm Oil Mills (PKS) produce a lot of sewage sludge and until now it has not been optimally utilized. This study aims to examine the potential of PKS sewage sludge as an adsorbent for the removal of kromium (Cr) by the fixed bed column method. The study will also analyze the effect of recirculation on the reduction of kromium levels. The sludge was carbonized in a furnace at 300°C for 2 hours. Synthetic kromium wastewater was made at three concentrations of 2000 ppm, 3000 ppm, and 4000 ppm. The sludge adsorbent used was 100 grams which was filled into the fix bed column. Recirculation of kromium wastewater was performed 3 times. Adsorption isotherms were analyzed using Langmuir and Freundlich models. The results showed that the best removal without recirculation occurred at a kromium concentration of 3000 ppm with a removal efficiency of 48.07%. Furthermore, recirculation was carried out 3 times and resulted in varying removal values at the 1st, 2nd, and 3rd recirculation of 37.9%, 40.06% and 35.4%. The highest removal occurred in the second recirculation. The addition of recirculation led to a decrease in the sorption of chrome as the adsorbent had reached saturation point. This allows the release of kromium ions that have been adsorbed and causes the removal efficiency to decrease. A suitable adsorption isotherm model for sludge adsorbent is the Langmuir model, where the adsorption process occurs in a single layer and is homogeneous.
Penilaian Polymer Hazard Index Mikroplastik Pada Sedimen Sungai Batanghari Nur Aini, Indah; Marhadi, Marhadi; umi kalsum, siti
Environmental Pollution Journal Vol. 6 No. 1: April 2026
Publisher : ECOTON: Ecological Observation and Wetlands Conservation

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.58954/epj.v6i1.353

Abstract

Mikroplastik dapat ditemukan pada sedimen sungai disebabkan oleh arus air yang mengangkut mikroplastik dari sumbernya lalu mengendapkannya di sedimen. Penelitian ini bertujuan untuk menganalisis karakteristik dan kelimpahan mikroplastik, menganalisis hubungan karakteristik sedimen dengan mikroplastik, serta menilai risiko mikroplastik melalui polymer hazard index. Pengambilan sampel sedimen menggunakan metode grab sampling. Analisis laboratorium dilakukan untuk mengidentifikasi bentuk, warna, ukuran dan jenis mikroplastik. Jenis mikroplastik yang ditemukan yaitu fiber, filamen, fragmen dan pellet dengan variasi warna seperti merah, kuning, biru, ungu, hitam, transparan, coklat dan silver. Mikroplastik juga ditemukan dengan ukuran yang bervariasi. Nilai PHI termasuk kategori sedang. Penelitian lanjutan diperlukan untuk memahami lebih dalam distribusi dan dampak mikroplastik serta upaya mitigasinya.
Analisis Mutu Air Tanah Dangkal di Sekitar Kegiatan Pengeboran Minyak Bumi PT Pertamina Hulu Energi (PHE) Jambi Merang Kalsum, Siti Umi; Marhadi, Marhadi; Saputra, Yahya Erwin Rio
Jurnal Ilmiah Universitas Batanghari Jambi Vol 26, No 1 (2026): Februari
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jiubj.v26i1.6465

Abstract

This study aims to evaluate the quality of shallow groundwater based on iron (Fe) and manganese (Mn) parameters, as well as analyze the spatial distribution pattern of pollutants in the area around PT Pertamina Hulu Energi (PHE) Jambi Merang's petroleum drilling activities. Sampling was carried out at eight points of dug wells, including one company-owned monitoring well, three wells located within a radius of ±2 km the drilling site, and four wells located in community residential areas up to a radius of ±9 km. Water quality analysis is carried out through laboratory testing with reference to water quality standards for hygiene and sanitation purposes in accordance with the Minister of Health Regulation Number 2 of 2023. Furthermore, spatial distribution modeling was carried out using the Inverse Distance Weighting (IDW) and Krigging interpolation methods. The results showed that at some observation points, the concentrations of iron (Fe) and manganese (Mn) were detected to exceed the set quality standard values, with a tendency to higher concentrations in wells located closer to the drilling area. The spatial distribution pattern indicates a decrease in metal concentrations as the distance from the source of the pollutant increases. These findings emphasize the importance of regular groundwater quality monitoring and the implementation of sustainable environmental management to protect the availability of water sources for the community.
Analisis Kualitas Air Tanah dan Air Permukaan pada Land Application di PT. X Hikmarina, Ria; Marolop, Guntar; Marhadi, Marhadi
Jurnal Ilmiah Universitas Batanghari Jambi Vol 26, No 1 (2026): Februari
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/jiubj.v26i1.6466

Abstract

The application of land application as a palm oil mill effluent (POME) management method aims to reduce environmental pollution while improving soil fertility. However, this practice has the potential to affect groundwater and surface water quality in the surrounding area. This study aims to analyze groundwater and surface water quality in the land application area of PT. X, Muaro Jambi Regency, and to evaluate its compliance with environmental quality standards. A descriptive quantitative method was employed by collecting wastewater samples at the WWTP outlet, surface water samples from the Sekawan River (upstream and downstream), and groundwater samples from monitoring and control wells. The analyzed parameters included pH, BOD, COD, TSS, and ammonia (NH₃). The results indicate that the wastewater quality at the WWTP outlet meets the applicable standards. However, groundwater and surface water around the land application area show a tendency toward increased BOD, COD, TSS, and ammonia levels, although most values remain below the permissible limits according to Government Regulation No. 22 of 2021. These findings indicate that land application activities may influence water quality and therefore require continuous environmental management and monitoring.
Aplikasi Model QUAL2Kw dalam Penilaian Kualitas Air Sungai Kambang Parameter BOD dan NH3-N Asyari, Nuzul Hafiizha; Kalsum, Siti Umi; Marhadi, Marhadi
Jurnal Daur Lingkungan Vol 9, No 1 (2026): February
Publisher : Universitas Batanghari Jambi

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33087/daurling.v9i1.497

Abstract

The Kambang River is a river in Jambi City that passes through densely populated residential areas and shopping centers, making it vulnerable to pollution from both point and non-point sources. This study aims to model the water quality of the Kambang River using QUAL2Kw software on the Biochemical Oxygen Demand (BOD) and Ammonia as nitrogen (NH3-N) parameters in response to increasing discharge and pollutant levels from point sources. Sampling was conducted using grab sampling at nine points representing the upstream, midstream, and downstream segments. The test results were compared with the river water quality standards and similar waters, Class II, Appendix VI of Government Regulation No. 22 of 2021 concerning the Implementation of Environmental Protection and Management. River hydraulic data (discharge, width, depth, flow velocity, and riverbed slope) were used as input data in the QUAL2Kw worksheet. Data calibration was performed using trial and error, then data validation using the Root Mean Square Percentage Error (RMSPE) method. The results of water quality testing showed that the BOD and NH3-N parameters at all sampling points did not meet the established quality standards. The BOD test value ranged from 7.10 to 16.20 mg/L with a quality standard of 3.00 mg/L, and the NH3-N test results ranged from 3.03 to 14.13 mg/L with a quality standard of 0.20 mg/L. The model validation results using the RSMPE method for discharge parameters were 3.21%, BOD 3.88%, and NH3-N 0.46%, meeting the criteria of
Removal of Organic Pollutant from Industrial Rubber Wastewater Using Pineapple Crown Bio-Adsorbents Fitria, Riska Rahmah Dani; Riyanti, Anggrika; Hadrah; Marhadi; Nazarudin; Sisca Afrilia Silalahi
Indonesian Journal of Environmental Management and Sustainability Vol. 10 No. 1 (2026): March
Publisher : Magister Program of Material Science, Graduate School of Universitas Sriwijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26554/ijems.2026.10.1.60-69

Abstract

Industrial rubber wastewater contains high levels of organic substances (proteins, carotenoids, organic salts, and lipids in residual latex) that can be observed in high concentrations of BOD5 (Biochemical Oxygen Demand) and COD (Chemical Oxygen Demand). Pineapple waste is an organic waste that can be utilized as a bio-adsorbent to remove pollutants from wastewater. This study aims to investigate the effectiveness of pineapple crown waste activated with KOH in removing BOD5 and COD in rubber industry wastewater. The effectiveness of the adsorbent was tested in batches at varying adsorbent dosages of 0.5 g, 1.0 g, and 1.5 g at stirring speeds of 50 rpm, 100 rpm, and 150 rpm. The adsorption isotherm model was analyzed using the Langmuir and the Freundlich models. The results showed that the optimum BOD5 removal rate in rubber industry wastewater using pineapple crown adsorbent was achieved at an adsorbent dosage of 0.5 g with a stirring speed of 100 rpm, resulting in an adsorption capacity of 62.78 mg/g and a removal efficiency of 94.35%. The optimum COD removal was achieved at an adsorbent dosage of 0.5 g, with a stirring speed of 100 rpm, resulting in an adsorption capacity of 199.816 mg/g and a removal efficiency of 95.15%. The adsorption isotherm model most suitable for both BOD5 and COD is the Freundlich model. Increasing the adsorbent dosage does not significantly enhance removal efficiency.