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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 587 Documents
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Implementing Biodrying Method for Waste Processing in Salatiga City Hardyanti, Nurandani; Zaman, Badrus; Bagaskhara, Rezza Anferditya; Hasfiawan, Harsya Giras
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.v21i3.696-711

Abstract

Waste processing in Salatiga City could have been more optimal. It can be seen from the data from the Salatiga City Environment Service that the waste processing facility in the form of an active waste processing site with reduce-reuse-recycle is only one out of seven registered units. This has the potential to cause accumulation at the final processing site. Therefore, it is necessary to develop an effective waste processing facility. Planning for waste processing using the biodrying method can effectively process waste that produces products in the form of Refuse Derived Fuel (RDF)[1] [Ma2] . Planning for waste processing is carried out until 2032 in two service areas: Service area 1 (Argomulyo District and Tingkir District) and service area 2 (Sidorejo District and Sidomukti District). The amount of waste generated by service area 1 reaches 49.33 tons/day and 522.67 m3/day, while service area 2 reaches 49.62 tons/day and 414.01 m3/day. Planning for waste processing using the drying method includes picking bay units, shredding, drying, screening, and loading RDF.[3] [Ma4]  RDFs potential in 2032 as a result of waste processing in service area 1 is 11159.03 tons/year with sales of Rp. 7,270,755,009 / year and in service area 2 it is 10,471.09 tons / year with sales of Rp. 6,822,524,206 / year
Analysis of Human Activities and Deforestation Impact on Air Quality: a Paper Review Prasetya, Ferdian Adhy; Dimyati, Muhammad; Verdyansyah, Aprizal
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 22, No 1 (2025): March 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v22i1.38-46

Abstract

This paper discusses the relationship between changes in human activities and deforestation with the condition of pollutant concentration parameters in an area using the Google Earth engine (GEE) method. By applying the Systematic Literature Review method, it is expected to provide an explanation of changes in pollutant conditions, such as concentration patterns of CO, NO2, SO2, O3, HCHO, PM2.5, and PM10 as a result of changes in human activity and deforestation. Human activity patterns may change due to certain events or rules that force humans to follow them. A clear example is the lockdown event during the Covid-19 pandemic that resulted in restrictions on human activities, especially outdoor activities. Similarly, deforestation is the process of significant reduction of forest area through tree felling, forest burning, or other land use changes that result in loss of tree cover and alter forest ecosystems. Both of these events impact the environment and air quality in the region, such as affecting air pollution concentrations. In various studies, changes in human activities and deforestation have been shown to have a significant relationship and influence on air quality concentration parameters in a region.
Impact of Electric Vehicle Transition Scenarios on Road Transport Emission in Semarang City Pratiwi, Ningsih Ika; Suherman, Suherman; Yulianto, Bambang; Amin, Muhammad
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 22, No 1 (2025): March 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v22i1.301-313

Abstract

The transition from fossil-fueled vehicles into electric vehicles is considered to be a strategy that can significantly reduce emissions and improve urban air quality. This study aims to examine the impact of the battery electric vehicles growth in Semarang City on carbon emissions within the road transport sector. Projections were made to assess the long-term impact and contribution of this trend towards meeting government targets in 2030 and 2060. Low Emission Analysis Platform (LEAP) software was used to estimate carbon emissions based on amount of vehicle and vehicle kilometer traveled (VKT) data. Three scenarios were set: the BEV scenario, which focuses on the widespread use of electric vehicles, demonstrates a significant reduction, especially in PM10 emissions, highlighting the advantages of transitioning away from internal combustion engine vehicles. The EMX scenario, which emphasizes an energy mix plan to support electricity, does not demonstrate a significant reduction in emissions. The COM scenario, which combine the BEV and EMX scenarios achieves the lowest emissions overall, indicating that a comprehensive strategy is most effective for achieving long-term emission reductions. All scenarios indicate the need for more aggressive policies, technological innovations, and carbon capture strategies to achieve reduction targets, particularly in the road transport sector.
Analysis of the Water Quality of the River in West Java as the Raw Water for Drinking Water Djembarmanah, Rachmawati Sugihhartati; Salsabila, Gina
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.v21i3.802-811

Abstract

The quantity of raw water from springs, groundwaters, and rainwaters has been decreasing nowadays. This has mostly made river water to be used as the raw water to be treated for drinking water by PDAMs. However, in 2020, 52 rivers in Indonesia were polluted. Therefore, it is necessary to analyze the quality of the river water to ensure that the water conforms with the standards of the Indonesian Government Regulation Number 22 of 2021 (class 1). This study was done to study the water quality i.e. DO, TSS, and total coliform in 9 sampling points in Citarum, Cimanggu, Cibogo, Citonjong, Ciwayang, and Cigugur Rivers in West Java. Grab samples were collected and were analyzed in the laboratory. The results were then compared with the standards. DO in the Citarum River (= 3.66 mg/L) and Cimanggu River (= 3.64 mg/L) samples were below the standard which might result from the domestic waste generated by the housing settlements, schools, and hospital existed around the sampling points. Total coliform in the upstream of the Cibogo River sample was above the standard; which could be caused by the domestic waste produced by the housing settlements and the fishing area located around the sampling point.
The Efficacy of Anaerobic Biofilter and Pre-Aeration with Microbubble Generator for Tofu Wastewater Treatment Harahap, Juliansyah; Ardhianto, Rachmad; Muliadita, Tiara Sekar; Mahdariza, Fathul; Ersa, Nanda Savira; Ashari, Teuku Muhammad
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 22, No 1 (2025): March 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v22i1.95-108

Abstract

The majority of tofu manufacturers lack the necessary infrastructure to treat wastewater, resulting in the direct discharge of wastewater into water bodies. Such practices have the potential to results in environmental pollution. This study examines the efficacy of combining anaerobic biofilter technology and pre-aeration with a microbubble generator for the treatment of wastewater generated by the tofu industry. The research focused on the impact of hydraulic retention time (HRT) on the reduction of pollutants, specifically chemical oxygen demand (COD), biological oxygen demand (BOD), total suspended solids (TSS), and pH levels. The results indicated that prolonged HRT in the anaerobic biofilter significantly reduces pollutant concentrations. 48-hour HRT achieved reductions of 80.78% for COD, 78.53% for BOD, and 89.25% for TSS, respectively. The integration of a microbubble generator further enhanced treatment efficiency. The combination of a 48-hour anaerobic biofilter and a 180-minute microbubble generator achieved reductions of 93.82% for COD, 93.11% for BOD, and 97.5% for TSS. The effluent consistently met the pH quality standards set by the Indonesian government. The findings suggest the potential for optimizing retention times and combining anaerobic and aerobic treatments to address wastewater challenges in the tofu industry. 
Infiltration Well Design for Environmental Conservation: Assessing Watershed and Groundwater Depth in Denpasar City Pamungkas, Tri Hayatining; Yekti, Mawiti Infantri; Ardana, Putu Doddy Heka; Warsana, Kadek Budhi; Kembarajaya, I Ketut
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 22, No 1 (2025): March 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v22i1.168-182

Abstract

Urbanization and climate change are expected to exacerbate and introduce uncertainty in future flood characteristics. The city of Denpasar often experiences flooding due to rapid population growth and changes in land use. One form of flood mitigation that can be implemented is infiltration wells. This research aims to design infiltration wells as an environmental conservation effort by evaluating the characteristics of the watershed and the depth of groundwater. This research will also examine lithological aspects and use geographic information systems (GIS) to increase effectiveness in planning. The research results show that the construction of infiltration wells at the research location is effective in reducing flood volume, with reductions varying between 19.86% in South Denpasar and 59.58% in North Denpasar, East Denpasar and West Denpasar. Infiltration wells not only reduce the risk of flooding but also play an important role in preserving the environment according to the Tri Hita Karana concept. By integrating these sustainable practices into spatial planning, water resource management can be enhanced, fostering a healthy environment for future generations.
Effect of Blue Light Color on Zn (II) and Cu (II) Metal Biosorption Using Tetraselmis chuii Microalgae Dewi, Tanti Utami Utami; Setiawan, Adhi; Dzulfikar, Muhammad Hanif; Putri, Desita Ramadona Syah; Gunawan, Karina Larasati; Prianto, Haekal Irfan Titan; Firnandi, Rahmad
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.v21i3.670-680

Abstract

Direct release of inorganic compounds Cu (II) and Zn (II) into water bodies can disrupt ecosystems. Using microalgae biosorbent Tetraselmis chuii (T. chuii) is a promising approach for removing these metals from wastewater. This study investigated the effect of blue light on the absorption of Cu (II) and Zn (II) by analyzing the contact time and initial concentration. Statistical analysis (MANOVA) revealed differences in the biosorption process due to the contact time and Cu (II) concentration (P <0.05). The results showed that the most effective Cu (II) removal occurred with a 60-minute contact time at a concentration of 5 mg/L, achieving a 67.07% removal rate. Zn (II) removal was also efficient under blue light conditions with a 60-minute contact time at the same concentration, yielding a 56.23% removal rate. Additionally, this process led to a substantial reduction in microalgae T. chuii cell density, by 76% for Cu (II) and 89.2% for Zn(II). Characterization analyses using Fourier-transform infrared spectroscopy (FTIR) and scanning electron microscopy confirmed the presence of functional groups in T. chuii microalgae, which are crucial for the biosorption process. This study underscores the potential of microalgae as effective biosorbents for mitigating inorganic compound pollution in wastewater. 
Optimizing Nutrient Removal in Agriculture Wastewater Using Electrocoagulation Technology Oktiawan, Wiharyanto; Sarminingsih, Anik; Hadiwidodo, Mochtar; Purwono, Purwono
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 22, No 3 (2025): November 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v22i3.1028-1038

Abstract

Water pollution exacerbates global water crises by reducing freshwater availability and quality. Agricultural wastewater, containing pesticides, herbicides, fertilizers, and organic matter, can contaminate water bodies if untreated. This study optimizes electrocoagulation (EC) parameters—voltage, time, and calcium concentration—to maximize nitrogen compound removal using response surface methodology (RSM). Results show a nitrate reduction of 88.37% (2.960 mg/L) at 45 V, 15 minutes, and 7 mg/L calcium, while ammonia was reduced by 99.37% (0.016 mg/L) at 30 V, 1.5 minutes, and 4.5 mg/L calcium. Calcium enhances coagulation by forming calcium hydroxide. The optimal conditions for nitrate and ammonia removal (3.709 mg/L and 1.338 mg/L) were 45 V, 15 minutes, and 5.09 mg/L calcium. EC also removed 96.73% of iron, with magnesium concentrations remaining very low (0.001 mg/L).
The Performance of Household-Scale Horizontal Flow Constructed Wetland (HFCW) Unit for Treating Greywater Suleman, Iriani Putri; Sofiyah, Evi Siti; Ridhosari, Betanti
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.v21i3.681-695

Abstract

Horizontal flow constructed wetland (HFCW) is a method mimicking natural processes in which plantations are used to treat wastewater. This method demonstrates superior efficacy in the removal of organic pollutants and total nitrogen. Furthermore, it offers the advantage of reduced operational and maintenance expenses. This research employs a household-scale HFCW unit, utilizing water hyacinths (Eichornia crassipes) to treat greywater from a single house. The study aims to assess the HFCW unit's performance in treating greywater at a household scale, with effluent quality compared against Minister of Environment and Forestry Regulation (Regulation Number 68/2016 on Domestic Wastewater Quality Standard) using testing methods in accordance with the Indonesian National Standards (SNI). The results indicate that the HFCW unit removal efficiencies after two days retention time are: BOD5 (74%-93%), COD (47%-80%), TSS (55%-97%), oil and grease (50%-94%), and ammonia (46%-99%). After three days, the unit generally demonstrates improved performance, which are: BOD5 (67%-96%), COD (57%-91%), TSS (51%-97%), oil and grease (11%-99%), and ammonia (35%-99%). Overall, the effluent quality meets government standards for both two- and three-days retention time, establishing the HFCW unit as an effective household-scale greywater treatment solution.
Spatial Modeling for River Quality Assessment to Enhance Sustainable Water Resource Management Regulations Syafrudin, Syafrudin; Sarminingsih, Anik; Juliani, Henny; Sejati, Anang Wahyu; Budihardjo, Mochamad Arief; Sani, Muhammad Thariq; Wati, Hessy Rahma; A'yun, Husnul Karimah Qurrata
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 22, No 1 (2025): March 2025
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v22i1.183-195

Abstract

Water is a crucial asset and serves as a significant factor in the quality of life, especially in supporting key sectors such as agriculture, energy, industry and conservation of natural ecosystems. Water quality can be significantly affected by pollution from effluents, especially in developing countries such as Indonesia which faces the added challenge of rapid population growth. This research focuses on monitoring water quality in the Garang River Sub-region, Semarang, by utilizing Internet of Things (IoT) technology for real-time monitoring. The methods used include the Storm Water Management Model (SWMM) model and an IoT-based monitoring system to measure important parameters such as temperature, pH, turbidity, Dissolved Oxygen (DO), Chemical Oxygen Demand (COD), and nitrate and phosphate concentrations. The results showed that the Chemical Oxygen Demand (COD) parameter often exceeded quality standards, especially in areas with domestic and industrial activities. The IoT monitoring system facilitates precise and instantaneous data gathering., supporting sustainable water resources management. This research emphasizes the need for evaluation and adjustment of policies related to waste management and spatial planning to reduce pollution and improve water quality.

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