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Lingkar : Journal of Environmental Engineering
Published by Universitas Islam Negeri Ar-Raniry Banda Aceh
ISSN : 27462498     EISSN : 29868807     DOI : https://doi.org/10.22373/ljee.v3i2
Core Subject : Social, Engineering,
Engineering Environmental Science
Lingkar: Journal of Environmental Engineering is a journal that published the result of research in field of Engineering and Science focusing on environmental management, water resources, pollution control, health and safety, public health and sustainable such as latest idea, concept and technology.
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Teknik Lingkungan
Articles 58 Documents
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STUDI ANALISIS EFISIENSI DAN KEHILANGAN AIR PADA SALURAN IRIGASI KAMPUNG REJE GURU KECAMATAN BUKIT KABUPATEN BENER MERIAH Fadhliani; Ersa, Nanda Savira; Palaguna, Adhan; Usrina, Nura; Muthmainnah
Lingkar: Journal of Environmental Engineering Vol. 4 No. 1 (2023): LINGKAR : Journal of Environmental Engineering
Publisher : Department of Environmental Engineering (Prodi Teknik Lingkungan), Fakultas Sains dan Teknologi, UIN Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ljee.v4i1.2821

Abstract

D.I. Reje Guru is an open system irrigation network located in Bukit District, Bener Meriah Regency, Aceh Province. Various problems were identified such as cracked lining and wild vegetation around the network. These issues have impact on water losses along the channels’ conveyances through evaporation, seepage, operational factors and leakage. The input – output discharge measurement is used to determine the water loss and the value of the efficiency of water distribution in the Irrigation network. In addition, the evaporation and seepage loss are also calculated to find out the percentage of the loss from these two factors. The results shown that the maximum and minimum loss is from BS3RG and BS4RG which are 0,027 m3/sec and 0,004 m3/sec, respectively. The values are correlated to the efficiency values which are the highest 84,23% from BS4RG and 36,908% from BS3RG. It is confirmed that the two factors of evaporation and seepage are not the significant factor to the conveyance water loss.
PERENCANAAN SUMUR RESAPAN PADA GAMPONG LAMTEH BANDA ACEH Hasanah Balqis, Salsabila; Rohendi, Aulia; Harahap, Juliansyah
Lingkar: Journal of Environmental Engineering Vol. 4 No. 1 (2023): LINGKAR : Journal of Environmental Engineering
Publisher : Department of Environmental Engineering (Prodi Teknik Lingkungan), Fakultas Sains dan Teknologi, UIN Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ljee.v4i1.2894

Abstract

Changes in land use cause to reduced water absorption. Aceh Province is one of the areas that does not yet have technical regulations that have been implemented in terms of increasing water infiltration. This is one of the causes of not optimal flood handling. In urban areas, for example in the capital of Aceh Province, namely Banda Aceh, floods still occur frequently when there is high rainfall intensity and long duration of rain. One of the villages that experienced inundation was Gampong Lamteh, Ulee Kareng District, Banda Aceh. One solution to this problem is the construction of environmentally sound drainage in the form of infiltration wells. The existing drainage channels in Gampong Lamteh Banda Aceh are currently only located at a few points to drain excess water into water bodies while the rest are still ground canals. The cause of inundation is due to the unavailability of rainwater infiltration sites. After planning, the infiltration discharge value obtained by the infiltration wells is 0.000006594 m3/second and the total storage volume is 70,650 m3 and the design of the infiltration wells is planned in the form of a circle with a well height of 3 m, radius 0.5 m radius and the planned number of wells is 30 wells.
ANALYSIS OF PHYSICAL AND CHEMICAL PARAMETERS OF WATER QUALITY AS AN INDICATOR OF WATER POLLUTION IN THE LAENDE RIVER, MUNA REGENCY Ian, Ian Adi Gunawan; Tosepu , Ramadhan; Kete, Surya Cipta Ramadhan
Lingkar: Journal of Environmental Engineering Vol. 6 No. 1 (2025): LINGKAR : Journal of Environmental Engineering
Publisher : Department of Environmental Engineering (Prodi Teknik Lingkungan), Fakultas Sains dan Teknologi, UIN Ar-Raniry Banda Aceh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22373/ljee.v6i1.7963

Abstract

Water is essential for life and is used for various daily needs. Rivers as one of the main water sources are often used by the community but are also used as waste disposal sites. The Laende River in Muna Regency has experienced a decline in water quality due to community activities, domestic and agricultural waste, and environmental damage in the river basin. This study aims to analyze the water quality of the Laende River based on physical and chemical parameters as indicators of pollution. The method used is descriptive quantitative through field surveys and laboratory analysis. Water samples were taken from three river segments: upstream, middle, and downstream. The parameters analyzed include temperature, TDS, TSS, pH, BOD, COD, DO, Fe, nitrate, and sulfate. The test results were compared with the class I river water quality standards according to PP No. 22 of 2021. The results show that the water quality of the Laende River decreases from upstream to downstream. The parameters of TSS in the upstream segment (44 mg/L), BOD (2.60–3.10 mg/L), COD (10.22–14.20 mg/L) and DO (4.48–5.31 mg/L) exceeded the established quality standards. This condition indicates significant organic pollution and anthropogenic activities along the river. This finding emphasizes the need for sustainable water quality management and control of pollution sources in the Laende River Watershed.
THE EFFECT OF HYDRAULIC RETENTION TIME (HRT) AND AERATION RATE ON THE REMOVAL OF COD, TSS, AND COLOR IN BATIK WASTEWATER USING A SEQUENCING BATCH REACTOR (SBR) Fitiryah, Lailatul; Raden Kokoh Haryo Putro
Lingkar: Journal of Environmental Engineering Vol. 6 No. 1 (2025): LINGKAR : Journal of Environmental Engineering
Publisher : Department of Environmental Engineering (Prodi Teknik Lingkungan), Fakultas Sains dan Teknologi, UIN Ar-Raniry Banda Aceh

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

Abstract

The batik industry produces liquid waste with high concentrations of organic compounds, synthetic dyes and suspended solids. Based on initial testing, the COD, TSS and Color content exceeds the quality standard limits. The Sequencing Batch Reactor method with a batch operation system is used to process liquid waste and reduce pollutant parameters. There is an adsorption medium with coconut shell activated carbon as a pre-treatment in the efficiency of color parameter removal. The purpose of this study was to analyze the effect of HRT and aeration rate to reduce polluted parameters in batik liquid waste. The HRT variations used were 18, 24, 32, and 38 hours with aeration rates of 7 and 14 L/minute. The results obtained from this study, the most optimal HRT in reducing pollutant TSS parameters is HRT 32 hours with a removal percentage of 71.43%. HRT 38 hours with COD and TSS parameters with a removal percentage of 92.12% and 78.57% and Color parameters 62,39%. The optimal aeration rate is 14 l/minute.
KINETICS OF VEGETABLE WASTE DECOMPOSITION USING FISH VISCERA EXTRACT AND BANANA PSEUDOSTEM IN THE COMPOSTING PROCESS Purnamasari, Syafta Indah; Rachmanto, Tuhu Agung
Lingkar: Journal of Environmental Engineering Vol. 6 No. 1 (2025): LINGKAR : Journal of Environmental Engineering
Publisher : Department of Environmental Engineering (Prodi Teknik Lingkungan), Fakultas Sains dan Teknologi, UIN Ar-Raniry Banda Aceh

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Abstract

This study investigated the effectiveness of the Takakura bin method for composting household vegetable waste using Fish Offal MOL and Banana Stem MOL as bioactivators. The Takakura method is a simple, aerobic composting technique that utilizes locally available materials—such as fermented microbial solutions and organic matter—to accelerate decomposition under controlled conditions, producing compost safely within a confined bin. The Carbon-to-Nitrogen ratio (C/N), a key indicator of compost maturity, represents the balance between carbon (energy source for microbes) and nitrogen (essential for microbial growth). Optimal composting typically occurs when the C/N ratio decreases from around 25–30:1 to below 20:1, indicating efficient organic matter breakdown. Results showed that compost pH remained between 6.0–7.5 and temperature between 25–30°C, ideal for mesophilic microbial activity. Both MOL treatments enhanced microbial diversity—Bacillus spp. dominated as primary decomposers, while Lactobacillus spp. in Fish Offal MOL helped lower pH and inhibit pathogens. The composting efficiency improved significantly, with faster C/N reduction, greater weight loss, and shorter maturation time. The Fish Offal and Banana Stem MOL bioactivators achieved over 80–90% efficiency in accelerating decomposition, producing mature compost with dark color, earthy odor, and fine texture. These findings confirm that the Takakura bin method, enhanced with MOL bioactivators, provides a highly efficient and eco-friendly solution for household organic waste management.
OPTIMISATION OF SULFURIC ACID CONCENTRATION FOR ENHANCED FE2+ ION REMOVAL USING ACTIVATED CHARCOAL FROM BOILED PEANUT SHELLS: CHARACTERISATION AND PERFORMANCE EVALUATION Asmara, Anjar; Kamila , Nisaul; Kamila, Nisaul
Lingkar: Journal of Environmental Engineering Vol. 5 No. 1 (2024): LINGKAR : Journal of Environmental Engineering
Publisher : Department of Environmental Engineering (Prodi Teknik Lingkungan), Fakultas Sains dan Teknologi, UIN Ar-Raniry Banda Aceh

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Abstract

Groundwater containing iron(II) (Fe2+) ions causes yellowish-brown discolouration and sediment formation. Since bioadsorbents can remove Fe2+ ions, this study investigated the effect of varying H2SO4 activator concentrations (5%, 7%, 9%, 11%, and 13%) on adsorption efficiency and identifies the optimal concentration for activated charcoal derived from boiled peanut shells (Arachis hypogaea L.) to remove the metal ions from well groundwater in Punge Jurong Village in Aceh Province of Indonesia. The process included carbonising the peanut shell waste, activating the charcoal, and testing the adsorbent on well groundwater. The results were analysed using SSA, SEM, and FTIR instruments, along with statistical analysis via SPSS 15 for one-way of analysis of variance (ANOVA). The adsorption efficiencies were 60.43%, 55.53%, 59.01%, 61.81%, 61.94%, and 59.10% corresponding to the activated carbons by H2SO4 (5%, 7%, 9%, 11%, and 13%) and commercial activated carbon, respectively. The IR-assisted characterisation on the boiled peanut shell waste bioadsorbent suggested that wave number shifting on O–H, C=C and C–O typical regions might be due to protonation affect by the acid activator. Conclusively, the study indicates that 13% H2SO4 is the most effective activator concentration for Fe2+ ion removal using activated carbon derived from boiled peanut shells.
STUDY ON THE EFFECTIVENESS OF ACTIVATED CARBON FOR REDUCING HARDNESS AND IRON (FE) CONTENT IN WELL WATER Fajar, Mutiara; Angreni Limbong, Ruth; Utami, Resarizki
Lingkar: Journal of Environmental Engineering Vol. 5 No. 1 (2024): LINGKAR : Journal of Environmental Engineering
Publisher : Department of Environmental Engineering (Prodi Teknik Lingkungan), Fakultas Sains dan Teknologi, UIN Ar-Raniry Banda Aceh

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Abstract

One source of clean water for communities is well water, which originates from groundwater. Groundwater typically has higher hardness levels compared to surface water and contains iron, as it percolates through rocks and subsurface soil. To address the issue of hardness and iron content in well water, one effective method is the adsorption process using activated carbon. This study investigates the effectiveness of activated carbon in reducing both hardness and iron (Fe) concentrations in water. The research tested different carbon thicknesses (60 cm, 70 cm, and 80 cm) to assess their impact on reducing hardness and iron (Fe) levels. The initial hardness level was 580 mg/l, and the iron (Fe) content was 2.08 mg/l. After treatment with activated carbon, the reduction in hardness at thicknesses of 60 cm, 70 cm, and 80 cm was 69.31%, 77.13%, and 82.87%, respectively. The reduction in iron (Fe) content at these thicknesses was 92%, 96%, and 97%, respectively. The results indicate that increased thickness of the activated carbon improves its effectiveness in reducing both hardness and iron (Fe) levels. As the thickness of the activated carbon increases, its efficiency in treating water also increases, showing that thicker layers of activated carbon enhance processing effectiveness.
UTILIZATION OF LANDFILL LEACHATE AS LIQUID ORGANIC FERTILIZER THROUGH FERMENTATION PROCESS WITH THE ADDITION OF AZOSPIRILLUM SP. Wulandari, Salsabila Puspita; Nisa’, Syadzadhiya Qothrunada Zakiyayasin
Lingkar: Journal of Environmental Engineering Vol. 5 No. 1 (2024): LINGKAR : Journal of Environmental Engineering
Publisher : Department of Environmental Engineering (Prodi Teknik Lingkungan), Fakultas Sains dan Teknologi, UIN Ar-Raniry Banda Aceh

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Abstract

This study investigates the utilization of landfill leachate as a raw material for producing liquid organic fertilizer (LOF) through a fermentation process with the addition of Azospirillum sp. The research focuses on evaluating the effects of different dilution levels (20×, 40×, 60×, and 80×) and a 14-day fermentation period under anaerobic conditions on the quality of the resulting fertilizer. The results showed that the 20× dilution produced the most optimal conditions, yielding macronutrient contents (N, P₂O₅, and K₂O) that met the national quality standards for liquid organic fertilizer. Additionally, a decrease in heavy metal concentration, particularly Lead (Pb), was observed during fermentation, indicating improved environmental safety of the final product. Although the C-organic and Fe contents were below the required limits, the neutral pH and absence of microbial contamination confirmed that the fertilizer is environmentally safe for agricultural application. Overall, this study demonstrates that the fermentation of landfill leachate with the addition of Azospirillum sp. provides a sustainable and eco-friendly approach for converting waste into a value-added product that supports environmentally responsible agriculture.

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