Environmental impact assessment Approach to Dynamic Safety Evaluation : A Liquefied Natural Gas Plant Case StudyBouafia, Abderraouf; Bougofa, Mohammed; Zeroauli, Bilal; Kharzi, Rabeh; Chakhrit, Ammar; Baziz, Amin; Aberkane, Salah; Medjram, Mohamed Salah; Mebarki, Ahmed
doi: 10.1088/1755-1315/1098/1/012011pmid: N/A
Industrial discharges pose global ecological risks. This study investigates Algeria’s GL1K (gas liquification complex of Skikda) plant’s hazardous effluents. The impact assessment evaluates the environmental repercussions of the researched facilities, including the effects on populations and their way of life. Thus, it is possible to stress suggestions to improve facility design to remove or restrict negative effects and to minimize or compensate for the current facility’s unfavorable repercussions. This technique is consistent with establishing and monitoring the industrial plant’s environmental management system. The method utilized to determine impacts in this EIA can be used to evaluate the EMS’s significant aspects and effects and provide improvement options. An evaluation matrix can rate impacts, the grid and criteria are based not regulation but on “good practices” for this type of assessment, and results obtained from modelling the effects using PHAST software. Therefore, they can be modified to fit the facility’s activity. Based on examining activities and identifying elements likely to interact with the environment, environmental aspects are identified using the proposed grid and criteria. This study describes a section-by-section approach. Each determined environmental impact can be graded based on environmental factor criteria.
Prefacedoi: 10.1088/1755-1315/1098/1/011001pmid: N/A
The 4th International Conference On Environment, Sustainability Issues And Community Development (Incrid)On behalf of the committee, I would like to express my sincere gratitude to all colleagues, professors, lecturers, researchers, and welcome you all to the 4th INCRID 2022 “Supporting the Realization of Zero Carbon Environment by Implementing Circular Economy”. This conference provides a great opportunity for researchers, students, industries, and governments to communicate their research results on the fundamentals and application of sustainability issues and community development.INCRID 2022 was held on 1 September 2022 in the online system and the theater room 5th floor of the Faculty of Engineering Diponegoro University, Semarang (hybrid). Keynote and invited speakers were Prof. Ramaraj Boopathy Nicholls State University, USA, Dr. Premakumara Jagath (Institute for Global Environmental Strategies, Japan), Prof. Pau Loke Show (University of Nottingham Malaysia), Prof. Sudharto P. Hadi, MES, Ph.D. (Universitas Diponegoro, Indonesia), Prof. Ir. Tjandra Setiadi, M.Eng., Ph.D. (Institut Teknologi Bandung, Indonesia), Prof. Dr. Soraya Heuss-Aßbichler (Ludwig-Maximilians-Universität München, Germany).List of Name of the Event, Theme, Objectives of the Event, Participants, Speakers, Schedule, Venue, Advisory Board, Steering Committee, Organizing Committee are available in this pdf.
Review of Seepage Behaviour on Concrete Facing Rockfill Dam Based on FEM Simulation and Chemical AspectPamungkas, G; Putranto, T T; Suharyanto,
doi: 10.1088/1755-1315/1098/1/012012pmid: N/A
Concrete Facing Rockfill Dam (CFRD) is a popular type of dam for hydropower plant due to its relatively good stability than others. However, CFRD have a potential technical issue concerning seepage and leakage as it has a thin impermeable layer. In this study, dam stability against seepage was evaluated by finite element simulation. Concrete facing layer and dam foundation were assumed to undergo permeability coefficient (K) increasing within 3 stages and would be simulated within 15 scenarios. Furthermore, seepage chemistry analysis was conducted to evaluate seepage water interaction with the dam foundation. FEM simulation shows that increasing of permeability coefficient on concrete facing < 10-5 m/second tends to cause the exceedance of allowable seepage discharge (q-simulation > q-allowable). On other hand, the increase of permeability coefficient on the dam foundation tends to cause the dam failure against seepage force. According to seepage chemistry analysis, calcium ion Ca2+ concentration increase 1.8 times from 13.6 meq/L on 2019 sampling to 24.8 meq/L on 2020 sampling. The seepage chemistry analysis shows the sign of carbonate rock interaction as dam foundation with seepage water.
Does water accounting support sustainable water management? A reviewMahmud, A; Susilowati, N; Susanti, A; Sari, P N
doi: 10.1088/1755-1315/1098/1/012037pmid: N/A
The business risks experienced by clean water companies include losses and decreased loyalty of water users. This risk occurs due to the absence of accountability, reliability, and transparency in sustainable clean water management. It can be overcome by implementing water accounting. This narrative review explains a sustainable water management model using a water accounting approach. The narrative review method consists of compilation, tabulation, comparison of research results, and summarizing. The literature review study collected articles from accredited journal sites (Sinta, Emerald, Science Direct). After searching for research keywords criteria, 29 articles were taken as samples. The results show that water accounting, in addition to reducing business risk for clean water service providers, also supports sustainable water management. Water accounting components such as gross inflow, net inflow, available water, water depletion, and outflow provide transparent and accountable information. The components of water accounting can analyze water use, scarcity, and productivity to predict the need for clean water because the amount of water discharge produced and used in one day can be known with certainty. Management and community commitment are needed to realize sustainable groundwater use conservation to ensure that the community enjoys the long-term supply of clean water.
Analysis of Ranjo Batu Community Perception of Unlicensed Gold Mining Activities on Environmental QualityMubarak, A; Saputra, B; Frinaldi, A; Triono, A
doi: 10.1088/1755-1315/1098/1/012004pmid: N/A
Since 2008, the activity of gold mining without a permit in Ranjo Batu Village has always been a polemic. There have been pros and cons in the community. Some people get various benefits, but others feel disadvantaged, giving rise to various perceptions. In this article, we focus more on the environmental aspect. The most apparent impact of mining activities is a decrease in environmental quality, but some people seem to ignore it because a pragmatic view is maintained. This study aims to comprehensively determine the publics perception of the environmental aspects of gold mining activities without a permit in Ranjo Batu Village. The research method uses descriptive and quantitative data. Data were obtained by distributing valid and reliable questionnaires to 95 respondents from a total population of 1,736 people. The descriptive analysis method will use the descriptive analysis method a percentage with the category of respondent achievement level (TCR). The results showed that the publics perception of environmental aspects was included in the unfavorable category, 53.61%. This perception score indicates that illegal gold mining from a community perspective hurts the environment, both in the water, on land, and in the air.
Sustainable urban communities: Territoriality of waqf-based communal place in Kampong CitiesRochani, Agus; Yuliastuti, Nany; Sudarwanto, Budi
doi: 10.1088/1755-1315/1098/1/012073pmid: N/A
One of the problems in today’s urban development is the scarcity of communal spaces in settlements. The communal space is a shared space where the community performs social interactions, establishes the community, and performs collective activities in the local community. One form of local wisdom that develops in forming communal spaces is the waqf land. Almost the entire Muslim community is involved in the running of the waqf. Likewise, in the city of Semarang, with its predominantly Muslim citizens, almost all kelurahan areas have waqf land. From this waqf land various communal spaces such as places of worship, education, and social, economic, and environmental infrastructure were developed. This study aims to formulate the territoriality of communal spaces that developed from the waqf process in Kauman Village as a representation of dense settlements in Semarang City. The research uses a holistic single case study method and inductive analysis to find the common thread of spatial territoriality. The study found that territoriality was developed through the enforcement of religious values, the legality of ownership status, institutional systems, and the development of complementary spatial functions according to communal needs. This system continues to serve the needs of the community in the long term.
Cleanliness assessment of Lake Toba tourist attractions from stakeholders’ perspectiveKhair, H; Utami, R; Lordye, G; Sari, U; Pasaribu, E
doi: 10.1088/1755-1315/1098/1/012005pmid: N/A
Lake Toba area is one of the priorities for developing tourist destinations in Indonesia. As a strategic national tourism area, it is necessary to identify aspects of the tourism area development that are not yet optimal to increase the number of tourist visits to that location. This study aims to assess the cleanliness of tourist sites in Lake Toba based on the assessment of tourism site stakeholders, namely visitors, local businesses, and cleanliness managers. The tourist sites in Lake Toba studied were Pasir Putih and Bukit Holbung. This study found that Pasir Putih and Bukit Holbung were considered dirty, with a cleanliness index of 2.63 and 2.60. The assessment shows that access to the cleaning facilities in the two tourist sites is difficult to reach. However, regarding the completeness of the cleaning facilities, Pasir Putih is considered better with an average index of 2.94 compared to the cleaning facilities in Bukit Holbung, which are considered inadequate with an average index of 2.43. The number of tourists visiting a tourist site is directly proportional to the waste generated, and the habits of tourists who visit also affect the cleanliness of a tourist site.
Analysis of Diversity Level and Vegetation Structural Composition Post Restoration at Resort Cangkringan Mount Merapi National ParkKusumaningrum, Lia; Setyono, Prabang; Sunarhadi, Muhammad Amin; Sholiqin, Muchammad; Hermawan, Bagus; Berlin, Gavriel Enos
doi: 10.1088/1755-1315/1098/1/012033pmid: N/A
Mount Merapi eruption in 2010 caused a total of 1,128 ha of damage to Mount Merapi National Park (MMNP). The MMNP Center carried out planting activities as a restoration activity in an area that had a fairly severe impact on Cangkringan Resort. This research is located at Cangkringan Resort in the restoration area of Klangon and Kali Kuning. This study aims to determine the level of diversity and vegetation structure after 10 years of post restoration. Analysis of the composition and structure is important to assess biodiversity and determine the success rate of restoration of the MMNP ecosystem damaged by the eruption. This research uses the line and line transect method with quantitative data analysis by Shanon Weiner and Evenness. This study found 45 plant species in Klangon and 34 plant species in Kali Kuning. The results show that the total level of diversity in Cangkringan Resort MMNP is moderate (1.465), the level of evenness in Klangon is moderate (0.444) and in Kali Kuning moderate (0.346). Therefore, the level of diversity and uniformity of the vegetation at Cangkringan Resort MMNP is at the medium classification level and shows a better change in the improvement of the vegetation.
Food waste humification: a process analysisZaman, B; Purwono, P
doi: 10.1088/1755-1315/1098/1/012066pmid: N/A
Food and Agricultural Organization estimates that roughly 1.3 billion kitchen trash are generated annually on a global scale. By using composting, we could convert our kitchen waste into a properly sanitized, humus-rich, relatively stable product that improves plant growth by conditioning soil Introduction. The main objective of this study is to conduct a review of fundamental of composting, humus, and enhanced humidification. Humus is created from degraded organic compound by the polymerization and condensation of organic components such polyphenols, reducing sugars, and amino acids. Humification can be increased through vermicomposting, the addition of biochar made from digestate, the addition of microbes to food waste compost, the addition of cow manure, multistage inoculation, solid state anaerobic digestion (SSAD), and composting hybrid processes.
The Effect of Mewis Duct Energy Saving Device to Propeller PerformanceTrimulyono, A; Mulyatno, I P; Rachmat, A F
doi: 10.1088/1755-1315/1098/1/012076pmid: N/A
Installation of ESD (Energy Saving Device) can improve ship propulsion performance. Mewis Duct is one type of ESD (Energy Saving Device) multi-component device that combines nozzle and fin into the nozzle. The structure can minimize losses due to small losses at the ship's stern and rotational losses or loss of thrust in the slipstreams area. Mewis Duct can reduce power by about 3-8% and increase thrust on the propeller by about 2-5%. This study aims to improve the performance of the INSEAN e779a propeller type using Mewis Duct. The modified Mewis ducts are the number of fins four, five, six asymmetrical and four symmetrical fins using the computational fluid dynamics (CFD) approach. The CFD code is based on the RANS (Reynolds - Averaged Navier Stokes) equation with the turbulent model is k-ε. This study found that installing Mewis duct as ESD in a ship increased the propeller thrust by 3-5% and the torque by 3-4%.