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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
 48   49   50   51   52 
Determining Water Quality Status and Assimilation Capacity of Pollutant Loads in West Lombok Regency M Said Ramdlan; Astrini Widiyanti; Hilman Rizkiadi; Muhamad Arif Sidiq; Khaerul Ihwan
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 21, No 2 (2024): July 2024
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/presipitasi.v21i2.419-432

Abstract

Babak watershed is one of the essential watersheds in Lombok Island providing water supply for irrigation, fish pool, drinking water supply, and micro-hydro power plant. Excessive human activities degrade the water quality of Babak watershed, and more pollutants are present in the water column. Thus, this study aims to determine Babak watershed's water quality status and assimilating capacity to plan effective and holistic mitigation measures properly. The study calculates the pollution index (PI) using a formula based on the Minister of Environment No.115/2003 Decree and assimilating capacity (AC) based on the Minister of Environment No.110/2003 Decree. The results found that Babak watershed is lightly polluted, defined by exceeding chemical parameters such as DO, total phosphate, nitrite, and dissolved iron (Fe). Similarly, these parameters (total phosphate, nitrite, and Dissolved iron (Fe) also reached the maximum assimilation capacity of Babak watershed to contain and self-purify these pollutants from the water column. Thus, planning mitigation and adaptation measures are required to prevent further contaminations in this watershed.
Effectiveness and Efficiency of Waste Banks in Ambarawa District Semarang Regency in 2023 Ariyadi, Dony; Siwiendrayanti, Arum
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.v21i3.793-801

Abstract

Ambarawa District, which is one of the districts with the highest density in Semarang Regency, experiences waste problems. Based on the official website of the Semarang Regency Environmental Agency, there are 10 active waste banks spread throughout Ambarawa District, including Acil, Rengas Asri, Mawar Asri, Mukti Bareng, Tegal Asri, Projo, Sari Asri, Tanjung Asri, Bina Lingkungan, and Bina Mandiri. The type of research used in this study was a case study based on quantitative data with a descriptive approach. Data analysis in this study uses the calculation of the Overall Equipment Effectiveness (OEE) equation and elasticity index. Based on the results obtained, 10 waste banks are located in Ambarawa District. The overall waste bank at OEE is less than 60%, and the elasticity index value is less than 1, which indicates that the effectiveness and efficiency of waste banks in Ambarawa District are low. In addition, the performance of waste banks in Ambarawa District is relatively low.
Reclamation of Former Brick Mining Lands: Enhancing Oil Palm Growth Using Goat Manure and Rice Husk Charcoal Maryani, Anis Tatik; Sarman, Sarman; Rosyani, Rosyani; Yardha, Yardha; Adri, Adri; Atman, Atman; Firdaus, Firdaus; Saidi, Busyra B; Wibowo, Yudha Gusti
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.v22i1.133-142

Abstract

This study focuses on the impact of goat manure and rice husk charcoal distribution on oil palm cultivation in former mining lands. The objective is to determine the optimal combination of goat manure and rice husk charcoal that enhances the growth of oil palm plants on these lands. Conducted in Pijoan Village, Muaro Jambi District, Jambi Province in 2021, the research utilized a completely randomized block design with 8 treatments and 3 repetitions, yielding 24 experimental units. The eight treatments consisted of varying ratios of goat manure to rice husk charcoal: (P1) 150 g goat manure + 325 g rice husk charcoal per planting hole, through (P8) 325 g goat manure + 150 g rice husk charcoal per planting hole. Results indicated that the combination of 325 g goat manure + 150 g rice husk charcoal (P8) provided the best outcomes in plant height, stem diameter, leaf balance at the third frond, and total frond count on reclaimed land.
Waste to Energy Sustainability Model as a Waste Power Plant: A Bibliometric and Visualization Analysis Rachmawatie, Dessy; Erwin, Erwin; Irawaty, Khafidza Nisa
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.v21i3.638-648

Abstract

More than half of the world's population lives in cities, so the increase in urban waste production globally is mainly due to population growth, urbanization, and economic development, in the past decade, the utilization of waste to energy has provided positive benefits in terms of energy generation. By 2040 power generation will increase globally by 49%. By 2040, renewable energy sources are expected to meet 8% of the total global energy demand, With the development of the economy, waste management goes through several stages to reach the level of high technology as seen today. A sophisticated collection system, combined with an efficient separation process, enables high recovery and recycling rates. The method used in this study is qualitative with a literature study approach. The findings in this study show that China is the country that researches the most about wasto to energy, then the process carried out in the PLTSa Waste to Energy Policy Model recommendations in this study involves several related actors such as Business Entities, authorized Local Governments, and communities. In this case, waste to energy needs attention by local governments that have the authority to manage electricity by establishing provincial regulations in the electricity sector, establishing general electricity plans, and determining business licenses for providing electricity to business entities. 
Eco Literacy in Z Generation Regarding Waste Management as a Critical Dimension of Sustainable Urban Green Space Purwono, Purwono; Setiyaningrum, Ika Feni; Silviani, Wahyu Dian; Fatmawati, Puput Yosi; Adji, Diva Permata
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.v22i1.59-68

Abstract

Green spaces will only be adequately maintained with the active support of residents. Eco-literacy in the Z generation is essential in encouraging the behavior of those who care about the environment. The research was conducted using quantitative methods by sending questionnaires to Z-generation respondents. The questionnaire uses Likert scale including indicators scientific integration, program sustainability, internet literacy, the importance of waste management, concerns about waste, and volunteers. The majority of Z generation agrees that scientific integration educates them about environmental challenges and waste management. Concerning programmed sustainability, they are neutral about waste management programmed in schools. They appreciate environmental issues and try to educate the people using the internet. They feel good waste management will affect the environment, agree that Z generation is concerned about waste, and volunteer extensively for the environment. 
Analysis of Greenhouse Gas Emission Load and Emission Reduction from Switching to Electric Vehicles: A Case Study of Java Island Wicaksono, Surya Adi; Huboyo, Haryono Setiyo; Samadikun, Budi Prasetyo; Joyosemito, Ibnu Susanto
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.v21i3.773-792

Abstract

In order to  mitigate the impact of climate change  arising from Greenhouse Gas (GHG) emissions generated from the transportation sector, many countries  including Indonesia, have  initiated to develop policies to encourage environmentally friendly transportation technologies. Electric vehicles  represent a highly sustainable  alternative when compared to conventional vehicles. This study aims to  assess the potential reduction of GHG emissions from the shifting  to electric vehicle utilization on Java Island. The research method was conducted by modeling conventional vehicles until 2033 where there was a transition to electric vehicles throughout the model year and then calculating the GHG emission.  This study employs three scenarios : Business As Usual (BAU), Electric Vehicle Plan (EVP) with existing scenario power plant and Electric Vehicle Plan (EVP) with National Energy Plan (NEP) scenario power plant.  Model results revealed potential GHG emission reductions within 12.11% from the Existing EVP scenario and 12.54% from the NEP scenario against the BAU scenario  due to the shifting usege of electric vehicles on Java island. Based on the model results, it is possible to determine that shifting from conventional vehicles to electric vehicles can reduce GHG emissions from conventional vehicle use.
An Overview of the Utilization of PET Plastic Bottle Waste for Membrane Fabrication Istirokhatun, Titik; Siahaan, Samuel Ezra; Gonzales, Ralph Rolly; Andarani, Pertiwi; Susanto, Heru; Filardli, Abdullah Malik Islam
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.v22i1.15-37

Abstract

Plastic use, in this case including plastic drinking water bottles particularly polyethylene terephthalate (PET) has resulted in significant environmental, social, economic, and health repercussions. It will ultimately be deposited in landfills, requiring up to 1,000 years for each individual bottle to degrade. This review begins by briefly introducing the composition and characteristics of PET. It then details the methods for converting waste PET into valuable materials for diverse applications. The review emphasizes advanced uses of these materials in water treatment, highlighting the development of robust, organic solvent-resistant membranes. The primary aim of this review is to evaluate recent studies of PET bottle recycling to membrane technologies, membrane fabrication from PET waste, applications of PET-based membranes, advantages and challenges of using PET waste for membrane fabrication.
Potential Waste from Temporary Shelters in the Area of Universitas Pertamina as Raw Materials of Refuse Derived Fuel (RDF) Ridhosari, Betanti; Suryawan, I Wayan Koko; Rahman, Ari; Ardianto, Ardhan; Zahra, Nurulbaiti Listyendah
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.v21i3.649-659

Abstract

Universitas Pertamina has a strong vision in the energy field and is developing environmentally friendly infrastructure and management, including waste management. Considering these efforts, ‘waste-to-energy’ is an interesting concept to be developed. The practical application of this concept is exemplified by refuse-derived fuel (RDF). This research aimed to analyze the potential of waste from Universitas Pertamina’s temporary shelter as raw materials for RDF and identify the potential energy that can be produced. This research began by measuring the generation and composition of waste. Each type of waste is identified for water content, ash content, and calorific value. These findings were used to identify which waste types could serve as RDF raw materials. The water content analysis showed that, except for food waste, all waste types met RDF standards. All waste types also met the RDF ash content standards. The calorific value analysis showed that plastic waste had the highest heating value at 45.6 MJ/kg, followed by rubber waste (40.1 MJ/kg) and styrofoam (35.0 MJ/kg). Calculations for waste generation potential and heating value indicated a total potential calorific value reached 9,895.1 MJ/day. With this significant potential, Universitas Pertamina has the opportunity to develop innovative waste management, especially in producing RDF.
Forecasting Methane Emission Reduction through 3R Waste Treatment Facility: The Case of Janti-Sidoarjo Rifai, Muhamad Khafid; Kartikaningsih, Hartati; Susilo, Agus; Kristama, Yoga Sita
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.v22i1.232-246

Abstract

Municipal solid waste (MSW) generation contributes to methane emission, formed during anaerobic decomposition of organic. The MSW reduction can be forced into an integrated solid waste management site through 3R paradigm built in each municipal level area. This is because methane has a relatively short atmospheric lifetime of about 12 years compared to CO2. This means that reducing methane can quickly impact slowing global warming in the short term. This study aimed to achieve maximum results in reduction methane emission generated from an urban area through 3R waste treatment facility with measurable evaluation in 3 scenarios. The method used to gather the data analysis is Minitab 22 software, which forecasts an approach through trend method analysis, moving average, single exponential smoothing, and double exponential smoothing model to obtain the best-fit model for scenario analysis. The result showed that trend analysis has a high accuracy category with the smallest error (<10%: strong accuracy) in BaU, scenario 1, scenario 2, and scenario 3 with the MAPE value 0.002071 (0.2%), MAD value 0.00, and MSD value 0.00. Meanwhile, scenario 3 could decrease the amount of waste sent to landfills 188.03 tons/year in 2024 and 203.53 tons/year in 2033. Whilst, it could reduce methane up to 0.829126 tons-CO2-eq /year in 2024 and 0.897479 tons-CO2-eq /year in 2033 from total waste in Janti or 8-10% from the total methane emissions in Jabon landfill (65683,8 tons-CO2-eq /year). It concluded that optimizing the activities of 3R waste management facility units in each area, particularly in Sidoarjo, can significantly reduce the effect of methane emissions that arise in landfills.
The Effect of Contact Time and Oil Palm Frond Activated Carbon Dose as an Adsorbent in Decreasing Iron (Fe) in Groundwater Prasaningtyas, Asri; Febrianti, Nia; Azzahra, Rahmi; Ngang, Daniel Aprilianus
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.v21i3.660-669

Abstract

Groundwater well is the alternative well providing water source in the city of Balikpapan, especially in its sub-district of Karang Joang, North Balikpapan, where the location has not been fully integrated with PDAM water pipes. Normally, the groundwater has minerals including iron (Fe). For the drinking water, the concentration standard of Fe follows the national law of Permenkes No. 493/Menkes/Per/IV/2010 which is 0,3 mg/L as the threshold. Oil palm frond is an organic matter that is found easily in East Kalimantan, containing high levels of lignin and cellulose which used to produce activated carbon. The activated carbon was evaluated with five variant doses of 5; 10; 15; 20; and 25 g/L over groundwater and the contact time of 30; 45; 60; 75; and 90 minutes. The time contact was measured by the rotation of the stirrer with the speed of 100 rpm. The results showed the optimum time contact of 30 minutes with the adsorbent dose of 5 g/L with the elimination efficiency of 99,56%. The time contact and the adsorbent dose variants have insignificant effect because of the least time contact as well as the least dose are the optimal condition in decreasing Fe

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