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Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan
Published by Universitas Diponegoro
ISSN : 1907817X     EISSN : 25500023     DOI : -
Core Subject : Science, Agriculture,
Agriculture, Biological Sciences & Forestry Earth & Planetary Sciences
Arjuna Subject : -
Articles 25 Documents
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Search results for , issue "Vol 21, No 3 (2024): November 2024" : 25 Documents clear
Unveiling the Dynamic Between Land Conversion and Food Security of Farmers Households in Bakalan Village, Pasuruan Regency Novianty, Puput Cindy; Soemarno, Soemarno; Efani, Anthon; Bushron, Raushanfikr
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 21, No 3 (2024): November 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v21i3.907-916

Abstract

System Dynamics serves as an approach to unravel behavioral patterns by exploring fundamental structures. In this study, the dynamic system was crafted using STELLA software. The research methodology involved conducting primary surveys with both farmers and conversion farmers' households to gather essential data on their perspectives, practices, and circumstances related to land conversion and food security. Through this data, the System Dynamic model was constructed to depict the interplay among key variables impacting food security, specifically focusing on Food Availability, Affordability, and Needs. The analysis revealed that the Food Affordability indicator consistently played a pivotal role in shaping these trends over the analyzed years. However, a significant discrepancy in food security levels emerged between farming and non-farming households. This divergence primarily stemmed from income inequalities within the agricultural sector, affecting the purchasing power for essential foods like rice across the village. Additionally, a concerning trend of diminishing agricultural land and a subsequent decline in food availability was observed.
Spatial Characterization of Flood Intensity over the Drainage Condition of East Sempaja Village, Samarinda Ghozali, Achmad; Rizki, Ayu Fitriana Fitriana; Mustofa, Umar
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 21, No 3 (2024): November 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v21i3.917-935

Abstract

The flood events frequently impacting Samarinda City have not yet been thoroughly examined based on their intensity, particularly in the most flood-prone village in the city, East Sempaja Village. This paper employed a rigorous methodology, including K-means cluster analysis and Getis-Ord G* statistics, to reveal spatial clustering patterns based on flood intensity and residential drainage conditions in East Sempaja. The Spearman correlation was determined to identify the relationship between both factors. The present study demonstrates that using community-derived data can enhance flood disaster mitigation strategies, particularly within regions with insufficient data availability. The analysis shows that most neighborhood areas in East Sempaja have moderate to high flood intensity levels. The areas with high flood intensity are spread across the North. This paper confirms that the condition of drainage channels has a positive, yet weak, significant relationship with the level of flood intensity. Thus, optimizing drainage channels is still relevant in managing flood disasters in East Sempaja, providing practical strategies for a pressing issue. 
Developing Causal Loop Diagram for Urban Development and Land Carrying Capacity in Surakarta Arsianti, Ari; Astuti, Winny; Suryanto, Suryanto; Candraningtyas, Callista Fabiola; Primabudi, Eko
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 21, No 3 (2024): November 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v21i3.879-893

Abstract

Surakarta has an area of 46.72 km2 with a population of 583,961 people. The land use in Surakarta for housing is 62% and for open space is only 9.82% of the area. Meanwhile, economic growth in this city has always experienced an increasing trend, where in 2023 investment growth reached 55.82%. This study aims to determine the general picture through the causal relationship between the components of urban development and the carrying capacity of land in Surakarta. This study uses a quantitative descriptive approach. Data is obtained from identified variables which are then arranged dynamically using Causal Loop Diagram (CLD) analysis processed with Vensim software. The results show that there is a supply model (built-up area and green open space) and a demand model (population, investment, and Gross Domestic Product). The relationship between variables describes the causal relationship in Surakarta's Land Carrying Capacity divided into three rounds, namely Loop B1 (Land Carrying Capacity – Demand - Supply - Land Carrying Capacity), Loop B2 (Supply - Built-up Land - Land Conversion - Green Open Space – Supply), and Loop R1 (Population - Demand - Investment - GDP - GDP per capita – Population).
Technical Feasibility Analysis of Processing Food Waste into Organic Fertilizer with Black Soldier Fly Composting Method Astuti, Ulvi Pri; Setiani, Vivin; Putri, Anindya Taffana; Hayati, Debby Zintya; Fadilla, Laras Nur; Aviantari, Maura Diza; Setyawati, Emeralda Eka Putri
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 21, No 3 (2024): November 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v21i3.747-758

Abstract

Food waste is a major issue in Indonesia, accounting for 41.97% of waste generated. This untreated waste can lead to the production of greenhouse gases. However, food waste has the potential to be composted due to its high nutrient content. The purpose of this study was to analyze the technical feasibility of processing food waste using the Black Soldier Fly (BSF) composting method for organic fertilizer production. The study used variations of fish waste and reject milk as composting mixtures, with percentages of 100% food waste, 70% food waste and 30% cow manure, and 30% food waste and 70% fish waste. The dimensions of the BSF composting reactor were 56 cm x 43 cm x 20 cm. The research was conducted for 15 days with the addition of local microorganisms (MoL) to accelerate the degradation process. Various parameters such as pH, moisture content, C-Organic, nitrogen, phosphorus, and potassium were analyzed. The results showed that all variations met the required compost quality standards, it which was technically feasible to be used as organic fertilizer using the BSF composting method. The results of this study can improve the circular economy because compost and bsf larvae products have many benefits if traded.
Determination of Air Quality Protection and Management Strategic Area : Case Study of Tangerang City Bontong, Septepanus Gala; Permadi, Didin Agustian; Benjamin, Precious
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 21, No 3 (2024): November 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v21i3.852-868

Abstract

Metropolitan cities are often associated with anthropogenic activities that affect air quality. Tangerang, as a buffer city in the Greater Jakarta area, needs control strategies to tackle  severe air pollution problem. Government Regulation No. 22/2021 requires the establishment of Air Quality Protection and Management Areas (AQPMA) in every city, including Tangerang. The determination of AQPMA involve emissions inventories, air quality, population density, land use, and meteorological conditions, using secondary data and air quality modeling with AERMOD. The results of the emission inventory show that the largest contribution comes from the manufacturing and road transportation industries, with NOx 19,747, CO 556,341, PM10 27,001, PM2.5 22,080, SO2 2,233, and NMVOC 295,482 (in Gigagrams/year). The result of the air model  then accordance with measurements at AQMS Pasir Jaya in 2022. The average annual concentration results at this station are NOx 35, CO 1,200, PM10 38, PM2.5 39, and SO2 7.5 (in μg/m3). Ciledug is the sub-district with the highest population density, which is 19,233 people/km2. Based on AQPMA scores, eight very high-risk sub-districts must be a priority in mitigating clean air in Tangerang. A similar approach can be used in other cities to map vulnerability to air pollution as mandated by AQPMA.
Strengthening Institutional Capacity of the Hulun Hyang Farmer Group for Advancing the Edelweiss Flower Agroecosystem: a Case Study in Edelweiss Park, Bromo Tengger Semeru National Park, Indonesia Rahma, Melati Julia; Faronny, Danniary Ismail; Batoro, Jati; Karyawati, Anna Satyana; Putro, Agung Nugroho; Waluyo, Budi
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 21, No 3 (2024): November 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v21i3.950-961

Abstract

The escalating demand for Edelweiss flowers as souvenirs due to tourism development threatens their availability and economic value, impacting the indigenous Tengger community, which relies on these flowers for irreplaceable traditional offerings. The Hulun Hyang farmer group was established in 2017 under the guidance of the national park to conserve Edelweiss flowers, and subsequently obtained a cultivation permit from the Ministry of Environment and Forestry. However, the sustainable management of Edelweiss Park necessitates bolstering the group's institutional capacity as a critical agent in its development. This research examines the endogenous growth and active participation of the Hulun Hyang farmer group to strengthen their institutional capacity, enabling the establishment of deeply rooted and locally responsive mechanisms. Community development initiatives aim to foster economically and socially independent communities by enhancing agroecological management capacity by employing a strategic group development approach. Findings indicate that the institutional capacity of farmer groups is directly influenced by member dynamism and participation and indirectly impacted by leadership, member capacities, the role of extension workers, external support, and farmer characteristics. Consequently, efforts to augment the group's institutional capacity focus on promoting member dynamism and active engagement in group activities.
Delineation of Irrigation Network Performance in Subak in South Denpasar District, Bali Province Ardana, Putu Doddy Heka; Pamungkas, Tri Hayatining; Agustin, Elin Alviana; Syamsunur, Defrizon
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 21, No 3 (2024): November 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v21i3.936-949

Abstract

Massive conversion of agricultural land into built-up land occurred in South Denpasar District. These changes impacted the decline in rice production by 5.5% in 2023 and a decrease in the performance of the irrigation network. This study employs GIS to assess the efficacy of irrigation networks to enhance sustainable agriculture, community food security, and irrigation and subak network systems in South Denpasar. This study used spatial analysis to create an irrigation network performance map. Data analysis interprets primary data based on field observation to assess the irrigation network's physical condition. The irrigation network is divided into four levels: good, slightly damaged, medium damaged, and badly damaged. The study indicated that Subak Sesetan disintegrated since it was thought to have turned into a village. The land conversion reduced the 292.593 Ha of subak (Kerdung, Cuculan, Kepaon, and Sesetan) to 186.314 Ha, or 36.32%. The length of irrigation canals was 16.901 Km, with good conditions along 16.67 Km or 98.61%, slightly damaged conditions along 0.051 Km or 0.3%, and moderately damaged conditions along 0.1842 Km or 1.09%. This research should help South Denpasar District stakeholders decide on land-use change strategies and rehabilitation or irrigation network development priorities.
Domestic Wastewater Treatment to Control River Pollution in Sungai Pinang, Samarinda, East Kalimantan Suhartono, Eko; Erlena, Erlena; Sekartaji, Hapsari Lintang; Putera, Gusti Muhammad Perdana; Thalib, Iskandar; Syauqiah, Isna; Hafifah, Ifa; Trang, Ha Thi Thu
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 21, No 3 (2024): November 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v21i3.869-878

Abstract

Filtration is a method for controlling water pollution. This study aimed to engineer a filtration system using a combination of Melaleuca cajuputi (galam) wood charcoal and zeolite to process domestic wastewater. The research focused on domestic wastewater from Sungai Pinang Village, Samarinda, East Kalimantan, an area with significant water pollution issues. The samples were divided into three groups, each containing zeolite and galam wood charcoal in different ratios: Group 1 (1:1), Group 2 (1:2), and Group 3 (2:1). Each sample was exposed to contact times of 30, 60, and 90 minutes. Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Ammonia (NH3), and pH were measured for each treatment group at each contact time. Results showed that prolonged contact with the filtration method significantly reduced all parameters except pH (P<0.05). Each treatment combination did not significantly reduce all parameters except pH (P>0.05). Group 2 was found to be the most effective in improving water quality. In conclusion, this study demonstrates that the filtration method can reduce pollutant levels, with the combination of galam wood charcoal and zeolite in a 2:1 ratio being the most effective.
Utilization of Black Soldier Fly Larvae in Processing Expired Food Waste with Various Composition Yunita, Silma Maya; Siwiendrayanti, Arum; Nurjanah, Nurjanah
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 21, No 3 (2024): November 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v21i3.712-721

Abstract

The study aimed to evaluate the effectiveness of Black Soldier Fly (BSF) larvae in processing expired food waste with different compositions, including expired instant noodles, bread, and milk, compared to a cassava pulp control. A true experimental design using a Posttest Only Control Group and Complete Random Design  was employed. Over 15 days, temperature, pH, moisture, and waste reduction were measured. The results indicated that BSF larvae were most effective in reducing waste when fed expired instant noodles, with a Waste Reduction Index (WRI) of 5.68%, followed by bread (5.61%) and milk (5.47%). The lowest WRI was observed in the cassava pulp control group (5.28%). Statistical analysis using One Way ANOVA showed significant differences in WRI values among the waste compositions, confirming that BSF larvae efficiently reduce organic waste, particularly expired food, offering a sustainable solution for waste management.
Identification of Heavy Metal Concentration in Citarum River Water Using the Heavy Metal Pollution Index Method Wardhani, Eka; Wulan, Diana Rahayuning; Velda, Nazla Amaliyah; Nugraha, Willy Cahya; Rohman, Oman; Irmansyah, Athaya Zahrani
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 21, No 3 (2024): November 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v21i3.812-824

Abstract

The Citarum River is the largest and longest river in West Java Province. The basin in that location has influenced by human activities and the industrial sector. One of the hazardous pollutants contained in industrial wastewater is heavy metals. This study aims to identify the content of dissolved heavy metals (Fe, Cd, Cr, Cu, Hg, Pb, and Zn) in Citarum River water, Purwakarta Regency, at three observation points, namely Jatiluhur Reservoir Outlet, Cilalawak Bridge, and Cilele Bridge. The Atomic Absorption Spectrophotometry Method is used to analyze the dissolved heavy metals. Determination the level of metal contamination using the Heavy Metal Pollution Index (HPI) method. The study results that three metals exceeded the standard based on Government Regulation 22 of 2021 Class II, namely Fe, Hg, and Zn. Fe metal in the range between 0.277-1.179 mg/L, Hg metal between 0.011-0.100 mg/L, and Zn metal between 0.017-0.074 mg/L. HPI analysis showed that at three points in both sampling periods, it indicated that heavy metals highly polluted river water because the results obtained exceeded the HPI pollutant index, which was > 100. The biggest contribution of dissolved heavy metals in the Citarum River water body was dominated by the Hg parameter

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