Jejak karbon pada tahap operasional agro-eduwisata kota mataram menggunakan pendekatan penilaian daur hidup

Climate change is one of the global issues that require the participation of all stakeholders for handling. In addition, the climate change issue is listed as one of the sustainable development goals (SDGs). The Government of Mataram city, as one of the stakeholders, has committed to involve the climate change consideration into its planned program, including the development of agro-edutourism facility. This study aims to calculate a carbon footprint of agroedutourism facility during the operational stage in order to implement the Greenhouse Gas (GHG) emission reduction strategy. The method used is a life cycle assessment approach with ReCiPe analysis, and the functional unit is an annual carbon footprint per m2 area of agro-edutourism. The study showed that the total carbon footprint per m2 was 2.88 KgCO2-e per annum with the primary environmental hotspot was fossil fuel utilization in energy source of agro-edutourism facility (Electricity State-own Company) and visitor vehicles. Therefore, some strategies could be applied for reducing the carbon footprint, such as increasing the utilization percentage of renewable energy (solar panel), using energy-saving bulbs, preparing the facilities for zero-emission vehicles, and applying the green building concept or design. Further research is required to assess the energy management concept from the technical feasibility aspect and economic aspect for complimenting this study

Pipeline Program CDM di Indonesia: Sebuah Peluang dan Tantangan Untuk Industri Pertambangan

Climatechangeis one of the world\u27s problems that must be dealtthefailure in tacklingclimate change will impact on increasing the earth temperature and endanger the archipelago countries including Indonesia. Clean Development Mechanism (CDM) is one of the Kyoto Protocol mechanisms designed to mitigate climate change. Indonesia is one of the countries that meets the requirement as the host ofCDM program and has set up the target to reduce GHG emissions as much as 26 percent in year 2020. The industrial sector has opportunities to engage actively in reducing GHG emission including mining industry. The objectives of this research are to find out the potency of mining company\u27s involvement in climate change mitigation efforts particularly through CDM. In addition, the research of method that is chosen is literature study including reviewing data relating to CDM and with qualitative approached. The result shows that mining industry has a potency to involve actively in CDM program, among others, through energy efficiency, fuel substitution, renewable energy, Coal Bed Methane and the handling of critical lands through afforestation and reforestation scheme. Furthermore, by using Business as Usual assumption, the linier regression that is produced y=27.255.x + 12.711 therefore It is estimated that about 15 Mt C02-e (assuming 4 percent reduction) needs to be derived from the energy sector in 2020 that can be taken as an opportunity for the mining industry as well

Application of Life Cycle Assessment for Improving the Energy and Waste Management Strategy: A Case Study of Fertilizer Plant in Indonesia

Indonesia is one of the countries worldwide that consume significant fertilizer for agricultural activities. A total of 6.27 Mt of urea fertilizer per annum was consumed. Therefore, some fertilizer plants operate in Indonesia and one of the plants is managed by PT Pupuk Kujang. The plant is located at Cikampek West Java and has two production lanes where each lane has a production capacity of 570,000 t urea annually. This study is aimed to identify the potential impact and environmental hotspots of a fertilizer plant. The Life Cycle Assessment (LCA) method was applied and using Centrum Voor Milieuwetenschappen Impact Assessment (CML-IA) analysis for life cycle impact assessment (LCIA). Three main categories were analysed, namely climate change, acidification, and eutrophication. The functional unit was the potential environmental impacts generated by 50 kg of urea fertilizer production. The productions (ammonia, and urea) and distribution process were considered as the system boundary. Seven production processes occurred in the urea plant including synthesizing, purification, concentration, prilling, recovery, process condensate, and bagging process. The results showed that the 50 kg of urea fertilizer emitted 4.73 kg CO2-eq, 0.03 kg SO2-eq, and 0.015 kg PO4-eq and the environmental hotspots were caused by the consumption of electricity from state-owned company (31.5 %), polypropylene content in the fertilizer packaging (0.74 %), and transportation (1.48 %). These environmental hotspots provided an opportunity for the renewable energy introduction and the application of a packaging reuse program to reduce those potential environmental impacts. These strategies improved the environmental performance of PT Pupuk Kujang as a urea fertilizer producer

Utilization of mine tailings (waste) for improving environmental quality: a case study of community artisanal mining at Sekotong District West Nusa Tenggara Province Indonesia

Tailing is one of the wastes that generated by mining activity and recorded around 14 billion tons worldwide. Artisanal mining is also producing tailing from its processing activity (‘Gelondong’ and ‘Tong’) and creates potential environmental impact associated with tailing management. One of the strategies to reduce the impact is by applying the tailing utilization strategy. This paper is aimed to assess the possibility of using tailing that generated by community artisanal mining activity for construction purposes (paving block). In order to achieve the aim, the laboratory analysis and case study are applied. Six paving blocks that consist of normal paving block, and 15% tailing paving block were prepared and tested its compressive strength. In addition, the tailing that used was generated by community artisanal mining at Sekotong District of West Nusa Tenggara Province. The result showed that  the increasing compressive strength of normal paving block from day 14 to day 28 (ultimate) was 26% higher compared to tailing paving block. However, based on the SNI standard that these two types of paving block are categorized as quality B of paving block and could be used as parking pavement construction. Therefore, the 15% tailing paving block met with the SNI standard