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INDONESIA
Jurnal Ecocentrism
Published by Universitas Mahasaraswati
ISSN : 27753220     EISSN : 28071085     DOI : -
Core Subject : Science, Social, Engineering,
Energy Engineering Environmental Science
Jurnal Ecocentrism adalah sebuah wadah yang memuat artikel-artikel lingkungan dari para akademisi, praktisi, dan penggiat lingkungan. Istilah Ecocentrism diambil dari sebuah teori etika lingkungan yang lebih luas. Semoga jurnal ini dapat dijadikan pedoman dan solusi dalam menjaga keseimbangan alam di Indonesia bahkan dunia.
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Teknik Lingkungan
Articles 51 Documents
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Status Mutu Air Sungai Petanu Berdasarkan Perhitungan Metode Storet Sastra Wibawa, I Made; Mahendra Dewi, Ni Luh Putu; Simeon Petrus Tallo
Jurnal Ecocentrism Vol. 4 No. 1 (2024): Jurnal Ecocentrism
Publisher : Program Studi Teknik Lingkungan, Fakultas Teknik, Universitas Mahasaraswati Denpasar, Bali

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Abstract

The Petanu River is one of the rivers in Gianyar Regency. The use of the Petanu river is for irrigation of rice fields, holy places, waterfall tourism, as the main function of domestic lime disposal and there is illegal sandstone mining in several Petanu river basins. The Petanu River is also used for the community's basic needs, namely bathing, washing and toilets. Based on these activities, it will certainly affect the water quality of the Petanu river. Based on storet method calculations, the Petanu river experiences moderate pollution. This was influenced by the phosphate parameter at the monitoring location in the middle of the Petanu River which exceeded the class II water quality standard with a concentration of 0.3 mL. The fecal coliform parameters were found in the middle monitoring location with a concentration of 2,400 MPN/100 mL, the downstream monitoring location was 1,500 MPN/100 mL which exceeded the threshold for class II water quality standards.
PEMANFAATAN FLY ASH SEBAGAI PENGGANTI SEBAGIAN SEMEN PORTLAND UNTUK MENGURANGI EMISI KARBON Agus Karmadi, Ketut; Widyasari, Ni Luh
Jurnal Ecocentrism Vol. 4 No. 2 (2024): Jurnal Ecocentrism
Publisher : Program Studi Teknik Lingkungan, Fakultas Teknik, Universitas Mahasaraswati Denpasar, Bali

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Abstract

Understanding concrete is the most building material in construction industry. Advantages concrete of compared to other materials are that it requires little maintenance fire and water resistant. This study aims to 1) Determine the utilization fly ash from Asphalt Mixing Plan (AMP) in PT. Harapan Jaya Beton for concrete mix; 2) Determine the efficiency percentage of optimal fly ash use in concrete mix. The composition of fly ash used is Portland cement 5%; 10%; 15%; 20%; 30% made from mixture fly ash and Portland I type cement. The results of reaserch showed that burning of AMP as cement component instead of concrete mix. The workability of fly ash at 28 days is 15% with compressive strength of 28.7 MPa and 15% with modulus of elasticity of 14790 MPa. At 56 days the best use is 15% of tensile strength with value of 30.1 MPa and 15% elastic modulus with value of 15325.9 MPa, and at 90 days the best use is 10% compression strength with value of 31.9 MPa and 15% modulus of elasticity with value of 18213.5 MPa. From the above results, it shows that Portland cement can be used by using to reduce carbon emission by 20-30%.
Teknologi Pengelolaan Sampah Organik Menggunakan Larva Black Soldier FLY Di TPS3R Kesiman Kertalangu Denpasar Bali Wibawa, I Made Sastra; Maharani, Shinta Enggar; Nambung, Hermes Henryanto
Jurnal Ecocentrism Vol. 4 No. 1 (2024): Jurnal Ecocentrism
Publisher : Program Studi Teknik Lingkungan, Fakultas Teknik, Universitas Mahasaraswati Denpasar, Bali

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Abstract

Bali is a region that produces a lot of waste, reaching 4,281 tons in one day, whereas if calculated over one year, there will be as much as 52% of waste that is not managed properly. In 2022 to 2023, the total waste generation entering TPS3R Kesiman Kertalangu Denpasar is 6,039 Kg/day, consisting of organic waste of 1,569 Kg/day, and the remainder is residual waste which is disposed of in the landfill with waste generation of 4,470 Kg/day . The percentage of residual waste disposal from TPS3R Kesiman Kertalangu to TPA is 74%. This research uses experiments, which aim to: 1) find out research instrument techniques that reduce organic waste more quickly and 2) find out the BSF waste from the type of organic waste that is most in accordance with SNI Kompos 19-7030-2004. The research used two research instrument techniques, namely the Tray Instrument Technique and the Barrel Instrument Technique. The results of the research show: 1) the waste management technique using BSF larvae that reduces waste the fastest is in Instrument Tray 3 which contains 2000 grams of organic food waste which is reduced by 100 grams of BSF larvae for 16 days so that it weighs 1597 grams, and 2) BSF Kasgot that meets SNI Compost 19-7030-2004 is a waste management technique that uses Tray 3 Instruments, which has a water content of 19.040%, C-Organic 13.910%, Ph 6.970%, and N 0.980%.
LIMBAH LUMPUR INDUSTRI PENGOLAHAN BAJA SEBAGAI PENGGANTI PARSIAL PASIR UNTUK BAHAN BANGUNAN Darmayasa, I Gede Oka; Widiantara, I Kadek
Jurnal Ecocentrism Vol. 4 No. 1 (2024): Jurnal Ecocentrism
Publisher : Program Studi Teknik Lingkungan, Fakultas Teknik, Universitas Mahasaraswati Denpasar, Bali

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Abstract

This research involves the binding/solidification of sludge waste from the steel processing industry originating from a steel industry in West Java, namely sludge waste from the waste processing process of the iron sponge production unit (direct reduction plant) and the wire rod mill production unit using cement as the binding material in the concrete mixture. The binding of sludge waste is carried out on a laboratory scale with mixture proportions of 0, 10, 20, 30, and 40% sludge waste substitution for fine aggregate/sand. Laboratory tests on the mixture include compressive strength, elastic modulus and Poisson ratio, concrete density, permeability, environmental resistance, and leaching tests with TCLP (toxicity characteristic leaching procedure). Heavy metal leaching tests for Pb, Cd, and Zn have the highest values at a 40% mixture proportion, which are 0.065 mg/ltd, 0.234 mg/lt, values below the quality standard limits for these heavy metals, which are 5.0 mg/lt, 1.0 mg/ltd, and 50 mg/lt, respectively. Environmental resistance tests indicate that the mixture has sufficient resistance after testing through 13 cycles, with the highest weight loss in the mixture sample being 13.97%, a value below the established quality standard where the maximum weight loss is 30%.
ANALISIS KARAKTERISTIK SAMPAH DALAM MENENTUKAN OPTIMALISASI KINERJA PENCACAHAN DI TPS 3R KESIMAN KERTALANGU Sastra Wibawa, I Made; Maharani, Shinta Enggar; I Nyoman Waisnawa Budiswara
Jurnal Ecocentrism Vol. 4 No. 1 (2024): Jurnal Ecocentrism
Publisher : Program Studi Teknik Lingkungan, Fakultas Teknik, Universitas Mahasaraswati Denpasar, Bali

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Abstract

The increasing population causes an increase in the amount, variety and characteristics of waste. Good waste processing and management is needed to deal with waste problems. TPS 3R Kesiman Kertalangu is an independent waste processing site in Kesiman Kertalangu Village. There is mixed and residual waste entering TPS 3R Kesiman Kertalangu. In processing the waste into compost, the waste is first sorted and shredded. In this research, several experiments were carried out to determine the maximum sorting and shredding speed. The water content of the waste studied included: 25%, 50%, 75%. The research method used is the experimental method. Determining the water content of waste is done first by observing the daily weather to obtain the desired water content. Apart from that, there is a wash out of sorting personnel in sorting waste to get accurate data, so that there is no carry over effect. Measuring shredding speed uses the SNI 7580:2010 approach as a reference that is close to the basis of research. Based on research results, waste water content of 25% is the maximum waste for sorting. Apart from that, waste with a water content of 25% is also the waste that is shredded the fastest.
EKSPLORASI AIR TANAH MENGGUNAKAN METODE KONFIGURASI AUDIO MAGNETOTELURIK (ADMT) PADA DESA BUAHAN KINTAMANI Adiana Putra, I Kadek; Husnayaen; Ayu Nirwana, Ni Kadek
Jurnal Ecocentrism Vol. 4 No. 2 (2024): Jurnal Ecocentrism
Publisher : Program Studi Teknik Lingkungan, Fakultas Teknik, Universitas Mahasaraswati Denpasar, Bali

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Abstract

The demand for clean water in Binyan, Buahan Village, Kintamani District, is high due to its use in drinking, sanitation, agriculture, and livestock. Identifying aquifers at specific depths can be achieved using the resistivity geoelectric method. Considering the morphology of the survey object which is one of the triangle faces of the traces of Mount Batur Purba with wavy to steep contours, Geoelectric measurements using AGR/ADMT Type 300 HT2 were chosen. This method allows its use without the need to lay cables. This tool has the capability to reach a depth of up to 300 meters below the ground surface. The purpose of this research is to interpret data using 2-dimensional modeling to detect groundwater aquifers in the study area. Based on the rock resistivity contour interpretation along a 50 m track from west to east, the optimal drilling point is recommended at a depth of 285 m below the surface, with a total well depth of over 300 m. Filters should be installed at depths of 165 m, 195 m, and 285 m to account for the lithology, distribution, thickness, and depth of the rock layers.
EFEKTIVITAS PENGOLAHAN SAMPAH DI PUSAT DAUR ULANG MENGWITANI Nada, I Made; Satya Graha, I Made; Wahyu Wijaya, I Made; Intan Yuni Antari, Ni Kadek
Jurnal Ecocentrism Vol. 4 No. 2 (2024): Jurnal Ecocentrism
Publisher : Program Studi Teknik Lingkungan, Fakultas Teknik, Universitas Mahasaraswati Denpasar, Bali

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Abstract

One of the issues arising from the increasing population every year, along with the increase in activities and consumption of residents in Mengwi District, is the increase in waste generation. The purpose of this study is to determine the effectiveness of waste management at the Mengwitani Recycling Center (PDU). This research uses a quantitative method, where the effectiveness measurement is conducted through the inventory of waste processing units at the Mengwitani Recycling Center (PDU). The inventory data is used to compile the mass balance of the waste entering and exiting each processing unit for data analysis in determining the effectiveness of waste management at the Mengwitani Recycling Center (PDU). The effectiveness of waste management at the Mengwitani Recycling Center (PDU) was determined by the total waste intake over a year from June 2023 to June 2024, which reached 236,911.18 kg. Of this, the total wet organic waste amounted to 219.53 kg, and inorganic waste to 2,086.11 kg. The total residue reached 233,999.62 kg, with 233,999.62 kg of waste being incinerated. The incinerated waste produced 73,905.33 kg of ash, resulting in an average total waste reduction percentage at the Mengwitani PDU over one year of 70.14%.
ANALISIS LAJU TIMBULAN, KOMPOSISI, DAN KARAKTERISTIK SAMPAH RUMAH TANGGA DI DESA ANGANTAKA Sastra Wibawa, I Made; Satya Graha, I Made; Ari Yudiaskara, Dewa Ngakan
Jurnal Ecocentrism Vol. 4 No. 2 (2024): Jurnal Ecocentrism
Publisher : Program Studi Teknik Lingkungan, Fakultas Teknik, Universitas Mahasaraswati Denpasar, Bali

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Abstract

Angantaka Village, covers an area of approximately 239 hectares with a population of around 4,376 people and 1,458 households. According to SNI 19-3983-1995, Angantaka Village is classified as a small town with a population of less than 100,000. Waste management system in the village largely follows the traditional method of collect, transport, and dispose without any sorting. The main issues contributing to the waste problem in Angantaka Village include a lack of community awareness regarding proper waste management and the absence of adequate temporary waste disposal facilities. Most of the waste from Badung Regency, including Angantaka Village, is transported to the Suwung landfill. Therefore, composition, and characteristics of household waste, which would help in estimating the land requirements and the costs for constructing and operating a 3R (Reduce, Reuse, Recycle) waste processing facility. The study revealed that the average domestic waste generation is 0.6 kg per person per day, with wet waste, including food scraps and garden waste, amounting to 1,519.78 kg per day, and dry waste, such as plastics, paper, and metals, totaling 1,360.55 kg per day. This data is crucial for designing a 3R-based Temporary Waste Management Facility in Angantaka Village.
UJI KUALITAS AIR PADA SUMBER MATA AIR SUNGAI AYUNG MENGGUNAKAN METODE INDEKS PENCEMARAN Nada, I Made; Mahendra Dewi, Ni Luh Putu; Satya Graha, I Made; Windu Dwipayana, Made
Jurnal Ecocentrism Vol. 4 No. 2 (2024): Jurnal Ecocentrism
Publisher : Program Studi Teknik Lingkungan, Fakultas Teknik, Universitas Mahasaraswati Denpasar, Bali

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Abstract

The Ayung River spring water source is used by the community for religious activities such as melukat and for bathing water, of course it is necessary to pay attention to the quality of the spring water source. The water quality at the Ayung River spring water source can be determined by testing the water quality using physical, chemical and biological parameters. The test results are adjusted to the water quality standards table based on Bali Governor Regulation Number 16 of 2016 to determine the quality of water that has been tested. Then the test result were analyzed using the Pollution Index (IP) method to determine the level of water pollution at the Ayung River spring water source. Based on the result of the analysis, it was found that at point 1 Beji Karang Dalem got an IP score of 1.36 with a lightlu polluted status and at point 2 Pesiraman Dukuh Sakti got an IP score of 1.75 with a lightly polluted status.
ANALISIS PENGARUH PENAMBAHAN MASSA BIOCHAR PADA ADSORPSI ION FOSFAT (PO43-) DALAM AIR LIMBAH SINTETIS Nada, I Made; Wiratama, I Gusti Ngurah Made; Vebrian Kenedy, Fransiskus; Wahyu Wijaya, I Made
Jurnal Ecocentrism Vol. 5 No. 1 (2025): Jurnal Ecocentrism
Publisher : Program Studi Teknik Lingkungan, Fakultas Teknik, Universitas Mahasaraswati Denpasar, Bali

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.36733/jeco.v5i1.9858

Abstract

Fosfat berlebih (PO₄³⁻) dalam air limbah dapat menyebabkan eutrofikasi yang mengancam kehidupan akuatik. Studi ini bertujuan untuk mengevaluasi efektivitas biochar yang dibuat dari limbah upacara dan kulit durian dalam menurunkan kadar fosfat dalam air limbah sintetis. Biochar diaktifkan dengan ion Mg²⁺, dan dilakukan analisis untuk mengukur laju serta kapasitas adsorpsi agar sesuai dengan standar kualitas air pemerintah, yaitu maksimal 0,2 mg/L fosfat. Biochar diproduksi melalui proses pirolisis pada suhu 400–700 °C dan kemudian diaktifkan dengan perendaman dalam larutan MgCl₂ 1 M selama 24 jam. Pengujian adsorpsi dilakukan dalam reaktor dengan kondisi eksperimental yang terkontrol menggunakan variasi jumlah biochar. Tujuan utama pengujian ini adalah untuk menilai apakah peningkatan atau penurunan jumlah biochar akan mempengaruhi penurunan kadar fosfat dalam air limbah sintetis. Hasil menunjukkan bahwa biochar yang diaktifkan dengan MgCl₂ pada pH 9 paling efektif dalam menurunkan konsentrasi fosfat. Penambahan biochar hingga 0,5 g menghasilkan penurunan fosfat sebesar 74,32 mg/L (29,06%).

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