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Department of Environmental Engineering Faculty of Landscape Architecture and Environmental Technology Universitas Trisakti, Jakarta Gedung K, Kampus A Jl. Kyai Tapa Grogol Jakarta 11440, Indonesia
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INDONESIA
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY
Published by Universitas Trisakti
ISSN : 25799150     EISSN : 25799207     DOI : https://dx.doi.org/10.25105
Core Subject : Science, Agriculture, Social, Engineering,
Agriculture, Biological Sciences & Forestry Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Energy Environmental Science
The scope of the journal emphasis not limited to urban environmental management and environmental technology for case study in Indonesia and for other region in the world as well. Urban Environmental Management: environmental modeling, cleaner production, waste minimization and management, energy management and policies, water resources management, water supply and sanitation, industrial safety and health, water recovery and management, urban environmental pollution-diseases and health status, eco-drainage, flood risk management, risk mitigation, climate change and water resource adaptation. Environmental Technology: energy efficiency, renewable energy technologies (bio-energy), environmental biotechnology, pollution control technologies (wastewater treatment and technology), water treatment and technology, indigenous technology for climate change mitigation and adaptation, solid waste treatment and technology
Arjuna Subject : Ilmu Lingkungan (semua ketegori) - Teknik Lingkungan
Articles 313 Documents
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BIOPLASTIC FROM TAPIOCA STARCH WASTE AND RICE WASTE Widyastuti, Sri; Utomo, Yitno; Firdayanti, Annisa; Ratnawati, Rhenny; Solikah, Umi
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 7, NUMBER 1, APRIL 2024
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v7i1.18775

Abstract

Bioplastic is a plastic that is easily decomposed naturally by the activity of microorganisms without leaving toxic residues because of its that can return to nature. Aim: This study aim to examine the quality of bioplastics from variations of tapioca starch and rice waste raw materials for optimal composition. Methodology and Results: The method used is by mixing the raw material of tapioca starch waste and rice waste with variations in the composition of the material; 100% rice waste, 100% tapioca starch waste, 30% tapioca starch waste: 70% rice waste, 50% tapioca starch waste: 50% rice waste, 70% tapioca starch waste: 30% rice waste. Add 10 mL of glycerol, 30 mL of distilled water, 40 mL of acetate solvent, and 40 ml of 96% ethanol. The product will be tested on a laboratory scale for tensile strength, elongation at break, FTIR tests, and biodegradation according to SNI 7188.7:2016 for the bioplastic category that is easily biodegradable. The result shows that the optimal composition was found in the composition of 100% rice waste raw material with the quality of the tensile strength test results of 3,45 MPa, the value of elongation at break 3,8%, and the value of biodegradation 100%. The resulting bioplastics contain functional groups O-H (hydroxyl) bonded to hydrogen, C-H (alkanes), C≡C (alkynes), esters, simple aromatic compounds, C-O (carboxyl), C=C (alkenes), and hydrocarbons -(CH2)n. Conclusion, significance, and impact of study:  The use of starch to produce biodegradable materials is because it is environmentally friendly, easily degraded, available in large quantities, and affordable, moreover, the bioplastics derived from these waste sources are typically biodegradable, meaning they can break down into natural compounds under certain conditions, reducing environmental pollution.
FLOOD SUSCEPTIBILITY MAPPING USING MACHINE LEARNING IN KENING RIVER, SUB WATERSHED OF BENGAWAN SOLO, TUBAN Mustikaningrum, Dhina; Widya, Liadira Kusuma; Ulfah, Umayya; Wijayanti, Regita Faridatunisa
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 7, NUMBER 2, OCTOBER 2024
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v7i2.18818

Abstract

Floods are natural occurrences with the potential to cause damage to ecosystems and pose significant threats to human life, resulting in the destruction of property, infrastructure, and socioeconomic challenges. In recent times, flooding in the Sub-Watershed of Bengawan Solo has been linked to the overflowing Kening River in Tuban County. Aim: This study aims to produce a flood susceptibility map to mitigate the frequency of flood occurrences as well as facilitate effective planning for flood disaster risk management. Methodology and results: Flood data is collected from 2016 to 2023 through field surveys, Sentinel-1 satellite imagery, and data from the Development Planning Agency, Tuban County. Integrating remote sensing data from satellite imagery (PlanetScope, Sentinel-2), geographic information systems (GIS), and spatial modeling techniques, a flood susceptibility map is developed for the Kening River catchment. The occurrence of floods in the Kening River area is associated with various factors (11 variables) assessed through the frequency ratio approach, including profil curvature, LS factor, aspect, rainfall, river distance, road distance, building density 100 m, road density 100 m, vegetation type, normalized difference water index (NDWI), and soil adjusted vegetation index (SAVI). The results show flood susceptibility maps utilizing frequency ratio (FR) and convolutional neural network (CNN) techniques. The flood susceptibility map obtained through the CNN method demonstrates a notably high AUC value. The model development generated a validation AUC value of 0.857 for training and 0.856 for testing. Conclusion, significance and impact study: This research provides an understanding into the factors that influence the occurrence of floods in the Kening River catchment area. It also emphasizes the benefit of advanced machine learning approaches in mapping the susceptibility of floods. Furthermore, this study has the potential to be helpful in guiding regional policy decisions and result in enhanced flood risk management measures in Tuban County.
IMPACT OF CONSTRUCTION ACTIVITIES ON RESIDENTS OF CAPE COAST NORTH METROPOLIS, GHANA Mustapha, Zakari; Akomah, Benjamin Boahene; Ansah, S. K.; Tieru, Chris Kurbom; Asiedu, Daniel Botchwey; Acquah, Isaac
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 7, NUMBER 1, APRIL 2024
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v7i1.19125

Abstract

Construction projects have caused significant disruption in urban areas. Despite the need to limit the environmental impacts of construction operations, stakeholders often fall short, resulting in negative consequences for nearby residents. Aim: This study aimed to investigate the effects of various construction activities on residents of the UCC and CCTU campuses in the Cape Coast North Metropolis, Ghana. Methodology and Results: Using a stratified and random sample of 100 residential houses from the University of Cape Coast and Cape Coast Technical University, questionnaires were administered to residents in university-owned dormitories, private hostels, and faculty/staff housing. Data were analysed using Excel and IBM SPSS, focusing on modelling the relationship between variables and assessing their influence. The results indicated that construction operations impacted the environment and residents of the Cape Coast North Metropolis. The R and R Square values indicated that construction activities affected residents' responses. Meanwhile, the adjusted R Square accounted for the complexity of the model, with a standard error measuring the average prediction error. The constant term was considered significant, representing the expected value when all predictors were zero. Conclusion, significance, and impact: From initial ground disturbance to eventual decommissioning, construction projects can lead to soil degradation, habitat destruction, and increased carbon emissions. There is a need to prioritise sustainable and resident-friendly construction practices by incorporating responsible construction methods that mitigate the negative impacts on both residents and the environment. Continuous evaluation will enable better management and improvement of construction processes, leading to stakeholder benefits. Policymakers should explore eco-friendly building techniques, considering construction impacts.
BIBLIOMETRIC ANALYSIS AND MAPPING OF ARTICLES PUBLISHED ON THE DEGREE OF URBANISATION METHOD IN THE SCOPUS DATABASE Fatimah, Endrawati; Yanidar, Ramadhani; Jayanti, Rissa Yuliana Dwi
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 7, NUMBER 1, APRIL 2024
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v7i1.19314

Abstract

The United Nations Statistical Commission agreed in March 2020 to start using the Degree of Urbanisation as a method to delineate cities, urban, and rural areas to enable international statistical comparisons. The decision consequently promotes countries to change or align their classification and/or methods of urbanisation delineation. This is expected to increase the number of studies with “degree of urbanisation” or “urban classification” keywords around the world in line with the implementation of the method. Aim: This study aims to determine the research trends on the degree of urbanisation in the Scopus database from the year 2013 to 2022. Methodology and results: The bibliometric method was applied through the VOSviewer software (version 1.6.18. Leiden University, Leiden, Netherlands) for the analysis. The findings showed that the topics related to the degree of urbanization are underrepresented in terms of the number of publications and contributing nations though the trend in the number of articles published in the Scopus database has annually increased from 2017-2021. Conclusion, significance and impact study: This implies there is a lot of potential regarding the publication of studies on the concept of “degree of urbanization”
STUDY OF OPTIMALIZATION SOLID WASTE OF REFUSE DERIVES FUEL (RDF) AT LANDFILL GRIYO MULYO, SIDOARJO DISTRICT Mandala, Putu Chandra; Warmadewanthi, I.D.A.A; Aniza, Ria
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 7, NUMBER 1, APRIL 2024
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v7i1.19315

Abstract

Sidoarjo Regency in East Java grapples with a waste crisis, producing 1,086 tons/day in 2022, escalating annually due to urbanization. In response, Griyo Mulyo Landfill adopts Refuse Derived Fuel (RDF) technology, transforming waste into pellets for sustainable energy. This comprehensive waste management strategy not only addresses the increasing waste generation but also contributes to sustainable energy production, aligning with environmental and energy efficiency goals for the district. Aims: This study was aimed to assess the potential for waste reduction using Refuse Derived Fuel (RDF) technology in Sidoarjo Regency, East Java. Methodology and results: the focus of this study was on implementing RDF to convert waste into pellets, thereby reducing landfill reliance and transforming waste into a renewable energy source. The study involved analyzing the composition of waste entering the Griyo Mulyo Landfill Sidoarjo, revealing a significant portion of biodegradable, plastic, paper, and other materials. By determining the optimal RDF composition and estimating calorific values, the research aimed to provide insights into effective waste management strategies. Conclusion, significance and impact study: Analyzing the waste composition entering the landfill revealed optimal RDF components, emphasizing the potential for waste reduction and renewable energy production. The proposed inclusion of EM4 bioactivators in biodrying at Griyo Mulyo landfill promises accelerated decomposition, enhancing overall waste management efficiency. Significantly, this research offers practical insights for sustainable waste management in rapidly urbanizing regions, providing policymakers, waste authorities, and environmentalists with valuable strategies to mitigate the environmental impact of increasing urbanization. The potential impact extends to cleaner energy sources and influences waste management policies, fostering eco-friendly practices in Sidoarjo and beyond.
BRANDING SUSTAINABLE FOREST CITY AT IBU KOTA NEGARA (IKN) NUSANTARA VIEWED FROM THE PERCEPTION OF PENTAHELIX STAKEHOLDERS IN MANADO CITY Warouw, Felly Ferol; Pusung, Piet Hein; Herdiawanto, Heri; Luthfi, R. Mokhamad
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 7, NUMBER 1, APRIL 2024
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v7i1.19317

Abstract

Aim: This research aims to find the perceptions of these stakeholders towards sustainable forest city branding in the relocation of the Ibu Kota Negara-IKN (National Capital City) of the Nusantara (archipelago) to Kalimantan through a study in Manado City as one of the buffer cities of the IKN Nusantara. Methodology and Results: The research method is descriptive and justified by correlational research method. The population in this study were stakeholders involved in urban life activities from various backgrounds. A sample of 30 respondents representing urban pentahelix stakeholders residing in the city of Manado was identified randomly and determined purposively. This research is conducted on the existing city pentahelix stakeholders and encourages the sustainability of development and the city environment itself. Conclusion, significance, and impact study: The results showed that pentahelix stakeholders' understanding of sustainable forest city branding is understood by all pentahelix-based stakeholders. At the next level, whether these stakeholders understand and agree to implement what the sustainable forest city program is, the level of agreement of the respondents is above 70 percent.  But then whether the content of sustainable forest city branding already exists, there is a decrease in understanding by these stakeholders. For this reason, intervention is needed in the form of socialization of more massive sustainable forest city branding so that it is understood by each pentahelix stakeholder so that collaboration can be improved with the hope of being able to improve the quality of the IKN itself and the surrounding cities of this IKN.
POLICY FORMULATION FOR ANTICIPATING THE IMPACT OF ACID RAIN ON PADDY PLANTS USING NORMATIVE JURIDICAL ANALYSIS Ramadhan, Ardiansyah; Jumhur, Helni Murtiarsih; Nur, Fathan Ananta
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 7, NUMBER 2, OCTOBER 2024
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v7i2.19451

Abstract

Law Number 32 of 2009 Article 57, paragraph 4C that one of the preservations of atmosphere functions regulate efforts to protect against acid rain. One of the effects of acid rain is soil damage to plants, such as what happened to paddy plants. In Indonesia, paddy is one of the priority food sources, but every year, it decreases in several regions. Aims: This study aimed at acid rain's anticipated impact on paddy plants in this case study Bandung Regency. Methodology and results: The approach method in this study is a normative juridical approach, using primary data sources obtained through interviews and journal literature. Then, secondary data from legal literature were analyzed descriptively and qualitatively. The study results show that the Bandung Regency Environmental Service has enforced the law. However, violations still occur by industry and society through vehicle emissions, coupled with the increase in population. One of the efforts to formulate policies to anticipate acid rain in paddy plants is to establish sanctions for violators who still pollute the environment, apply catalytic converters to vehicle exhausts that have the potential to remove NOx, carry out measurements at groundwater measurement stations, water quality information systems (manual or real-time). In addition, the irrigation policy for river water flowing on agricultural land with existing laws is being improved. Conclusion, significance, and impact study: Anticipating the impact of acid rain on rice requires various approaches, both technical and non-technical, as well as further analysis from various policy sectors.
UTILIZATION OF HIGH-VOLUME FLY ASH AS A SUPPLEMENTARY CEMENTITIOUS MATERIAL IN ENVIRONMENTALLY FRIENDLY CONCRETE Sunarno, Yohans; Rangan, Parea Rusan; Ambun, Ermitha; Asiz, Andi; Tumpu, Miswar; Rinanti, Astri; Oksri-Nelfia, Lisa
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 7, NUMBER 1, APRIL 2024
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v7i1.19658

Abstract

Innovations in material technology are expected to reduce the use of commercial cement and replace it with other environmentally friendly materials with the same performance as normal concrete. Aim: This study aim to analyze the mechanical property of High-Volume Fly Ash Concrete (HVFAC) using F class fly ash with different mix percentages. Methodology and Results: The experiment was conducted in laboratory scale. Four variations of test specimens consisted of: 1 variation (F0), which is conventional concrete with 100% Portland cement as control specimen, and three variations of HVFC (F70, F80, and F90), which were made with fly ash content (%) 70, 80, and 90 of total cementitious. Fresh concrete testing to determine workability, while hard concrete testing is done by density and compressive strength tests at the age of 3, 7, and 28 days on specimens that have been treated with the water submerged curing method. Conclusion, significance, and impact of study: All HVFAC specimens fulfill the Self Compacting Concrete (SCC) category. The compressive strength test results at 28 days showed that the addition of fly ash percentage caused a decrease in compressive strength values in all HVFAC variants, but still exceeded the minimum requirements of high and medium quality concrete. All HVFAC variations meet the requirements of ASTM C618-23 based on the evaluation of Strength Activity Index (SAI) values at 7 and 28 days of age. The utilization of 90% fly ash as a cement substitute resulted in an environmentally friendly concrete product based on the concept of cleaner production.
IMPLEMENTATION OF TRANSIT ORIENTED DEVELOPMENT (TOD) IN THE JAKARTA SUB-URBAN AREA Taki, Herika Muhamad; Anita Sitawati Wartaman; Marselinus Nirwan Luru; Hanny Wahidin Wiranegara; Apri Zulmi Hardi
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 7, NUMBER 2, OCTOBER 2024
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v7i2.20169

Abstract

The high mobility of sub-urban communities has become the focus of the government to create an effective transportation system by creating a Transit-Oriented Development concept at several stations in sub-urban or supporting cities of DKI Jakarta. Aims: The purpose of this research is to find out whether the Bekasi and Plawad stations which are located in the suburbs are effective for making transit oriented development. Methodology and results: The type of research to be carried out is quantitative and qualitative research, in which the variables in this study will cover the area, the distance between points, the number of trips from each region to the types of transportation modes used by the community. Then, these variables will be analyzed spatially using maps created in the ArcGIS application and compared to be given a score (scoring) in accordance with the provisions of the indicators of the variables that have been determined in this study. Conclusion, significance and impact study: Plawad and Bekasi Stations are considered not feasible to be used as TOD due to inadequate facilities, the train itself is not yet the main transportation and needs to be increased to meet the commuter mobility needs of the people of Bekasi City.
EVALUATION OF ENHANCED SOLAR DESALINATION SYSTEM PROTOTYPE Iqbal, Rofiq; Putra, Daffa Reyhan Aldrien; Arifianingsih, Nur Novilina; Dwinandha, Dhimas
INDONESIAN JOURNAL OF URBAN AND ENVIRONMENTAL TECHNOLOGY VOLUME 7, NUMBER 2, OCTOBER 2024
Publisher : Universitas Trisakti

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25105/urbanenvirotech.v7i2.20768

Abstract

Solar desalination technology has been one of the effective solutions to tackle the problem of water scarcity. A number of studies have been conducted at our water research group to determine which variable influences the quantity of distilled water produced by an independent solar desalination unit. Aims: This study was aimed to design and optimize a novel solar desalination unit and field-tested using the best variable from the previous studies. Methodology and results: Variables used from the previous studies were evaluated to obtain the best values for each parameter, those are: glass cover inclination, gap distance between water and glass cover, insulation thickness, water depth, and water mass flow rate. Those best values were then implemented in the optimized basin design, delivery mechanisms, evaporation techniques, and heat isolation methods. The optimized design can generate up to 2,778.2 mL/m2/8hrs of distilled water with an efficiency of 23.35% in preliminary test, and was field tested at Batukaras Beach, where it produced up to 902 mL/m2/8hrs with an efficiency of 13.56%. Conclusion, significance and impact study: Meteorological parameters and environmental conditions are important factors that greatly affect the performance and productivity of the desalination unit. The relative humidity is inversely proportional to the volume of distillate water, where the smaller the value, the greater the amount of distillate water that can be produced, and it has significant impact on the productivity of the prototype. The quality of the distillate water produced still needs improvement on the parameters of pH, turbidity, and total coliform.

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