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All Journal Jurnal Dampak JURNAL PENGABDIAN PENDIDIKAN MASYARAKAT (JPPM) Lingkar : Journal of Environmental Engineering Jurnal Teknologi Lingkungan
Utami, Resarizki
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Identifikasi Kualitas Air dan Pencemaran Nutrien di Danau Batur dari Parameter Total Fosfat dan Total Nitrogen Sani, Indah Febriana; Sunaryani, Astried; Utami, Resarizki
Jurnal Teknologi Lingkungan Vol. 25 No. 2 (2024)
Publisher : BRIN Publishing (Penerbit BRIN)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55981/jtl.2024.2294

Abstract

Lake Batur is one of the National Priority Lakes that is currently experiencing a decline in water quality, especially nutrient pollution resulting from anthropogenic activities such as agriculture, floating net fisheries, domestic, tourism and livestock. The purpose of this study is to determine the total nitrogen (TN) and total phosphorus (TP) contents from six sample stations that serve as sources of nutrient contamination in the lake. Determination of TP concentration was carried out using the ascorbic acid method, and TN was carried out using the alkaline persulfate-salicylic acid method, subsequently, using PP number 22 of 2021 as a basis, the data were compared to lake water quality criteria. The result of the research showed that the TP concentration in Lake Batur water was in the range of 0.07–0.97 mg/L, while TN was in the range of 0.19–2.21 mg/L. Comparing the water quality of the lake with class 2, the TP concentration at all stations does not comply with the quality standards (>0.03 mg/L), while the TN concentration at all stations is still below the quality standards (<0.75) except at station 2 which exceeds quality standards. The highest source of N load pollution comes from KJA fishing activities, namely 45.19%, while the highest P load comes from agricultural activities, namely 91.69%. Abstrak Danau Batur merupakan salah satu danau prioritas nasional yang saat ini mengalami penurunan kualitas air khususnya pencemaran nutrien yang diakibatkan oleh aktivitas antropogenik seperti pertanian, budidaya ikan dengan keramba jaring apung, domestik, pariwisata, dan peternakan. Penelitian ini bertujuan untuk mengetahui konsentrasi total nitrogen (TN) dan total fosfor (TP) dari enam stasiun sampel yang menjadi sumber pencemaran unsur hara di danau. Penentuan konsentrasi TP dilakukan dengan metode asam askorbat dan TN dilakukan dengan metode alkalin persulfat-asam salisilat, selanjutnya dengan menggunakan dasar PP Nomor 22 Tahun 2021, data tersebut dibandingkan dengan kriteria kualitas air danau. Hasil penelitian menunjukkan konsentrasi TP pada air Danau Batur berada pada rentang 0,07–0,97 mg/L sedangkan TN berada pada rentang 0,19–2,21 mg/L. Jika kualitas air danau dibandingkan dengan kelas 2, konsentrasi TP di semua stasiun tidak sesuai dengan baku mutu (>0,03 mg/L) sedangkan konsentrasi TN pada semua stasiun masih berada di bawah baku mutu (< 0,75 mg/L) kecuali pada stasiun 2 yang melebihi baku mutu. Sumber pencemar beban N paling tinggi berasal dari aktivitas perikanan KJA yaitu sebesar 45,19% sedangkan beban P paling tinggi berasal dari aktivitas pertanian yaitu sebesar 91,69%.
Application of Batch Electrocoagulation for Pollutant Removal in Tapioca Wastewater: An Environmental Engineering Approach for Sustainable Water Treatment Solutions Fajar, Mutiara; Putra, Afrinaldi; Munandar, Andika; Lutfi Setia Putri, Shabrina; Utami, Resarizki
Dampak Vol. 21 No. 1 (2024)
Publisher : Universitas Andalas

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25077/dampak.21.1.15-22.2024

Abstract

Tapioca wastewater is rich in organic compounds, leading to high levels of COD (Chemical Oxygen Demand) and TSS (Total Suspended Solids). When these concentrations exceed regulatory standards, they can cause significant water pollution, which may indirectly affect human health. Therefore, it is essential to treat tapioca wastewater before discharging it into water bodies. Electrocoagulation is a promising treatment method for this purpose, as it can effectively remove contaminants through coagulation, separation, and sedimentation of fine particles using electrical energy. This study evaluated the efficiency of COD and TSS removal from tapioca wastewater using an aluminium electrode with voltage variations of 10, 20, and 30 volts. Initial concentrations of COD and TSS in the untreated wastewater were measured at 641 mg/L and 382 mg/L, respectively. Optimal removal rates were achieved at 20 volts, with reduction efficiencies of 79.5% for COD and 82.7% for TSS. Statistical analysis using ANOVA indicated a significant impact of voltage variations on COD and TSS removal efficiency, with a p-value < 0.05 and an F-value greater than the critical F-value. These findings demonstrate that electrocoagulation, particularly at an optimal voltage of 20 volts, effectively reduces the COD and TSS levels in tapioca wastewater, suggesting its potential application as an environmentally friendly solution for industrial wastewater treatment.
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

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

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.
PEMBUATAN SUMUR RESAPAN AIR HUJAN DAN LUBANG RESAPAN BIOPORI DI DESA SUKOHARJO, PRINGSEWU Mawaddah, Nurul; Utami, Resarizki; Fajar, Mutiara; Alifa, Nabila Putriyandri; Awan, Fajriharish Nur
Jurnal Pengabdian Pendidikan Masyarakat (JPPM) Vol 4 No 2 (2023): Jurnal Pengabdian Pendidikan Masyarakat Vol 4 No 2 (2023)
Publisher : LPPM UNIVERSITAS MUHAMMADIYAH MUARA BUNGO

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.52060/jppm.v4i2.1258

Abstract

At the end of 2022, precisely in October-November 2022, Pringsewu Regency experienced the worst flood disaster in the last 12 years. As many as three pekon (villages) in Pringsewu Regency, Lampung, were flooded after being showered with heavy rain overnight. One of the villages affected by the floods is the Sukoharjo Village. As a result, for rice fields that have poor drainage channels, rainwater creates new problems, especially for rice farmers. too much water inundated crops. Socialization and demonstrations can be used to increase the knowledge of a group of respondents. Socialization and demonstrations regarding making infiltration wells and biopori infiltration holes have been carried out to provide information and knowledge to respondents regarding groundwater conservation issues, to get to know rainwater infiltration wells and biopori infiltration holes to reduce floods and landslides during the rainy season and as raw water reserves for activities people during the dry season. The method of implementing this service is a pre-test and post-test in the form of filling out questionnaires to respondents, namely residents. The results of the activity showed an increase in the percentage of residents' knowledge which increased from 64.29% to 86.43%.
Co-Authors Alifa, Nabila Putriyandri Angreni Limbong, Ruth Astried Sunaryani, Astried Fajar, Mutiara Fajriharish Nur Awan, Fajriharish Nur Lutfi Setia Putri, Shabrina Mawaddah, Nurul Munandar, Andika Putra, Afrinaldi Sani, Indah Febriana