Indonesian Journal of Urban and Environmental Technology
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ABIOTIC AND BIOTIC POTENTIAL IN THE DEVELOPMENT OF RURAL-BASED ECOTOURISM: A STUDY ON BANTAR KULON VILLAGE, LEBAKBARANG DISTRICT, PEKALONGAN REGENCY, INDONESIA
No full textAim: This study aims to identify the diversity of biotic, abiotic and culture in Bantar Kulon Village. Methodology and Result: This study uses a combination of qualitative and quantitative research approaches, using descriptive research techniques and ROS (Recreation Opportunity Spectrum). Bantar Kulon Village has a diversity of 5 abiotic potentials in the form of geographical and geological conditions, biotic potentials in 43 types of flora and 48 types of fauna, including 1 species has the status of Not Evaluated; (NE), 8 species have a Data Deficient status (DD), 43 species with Least Concern status (LC), 3 species with Near Threatened status (NT), 3 species Vulnerable (VU), 6 species have Endangered status (EN) and 1 species with Critically Endangered status (CR) based on the status of the International Union for Conservation of Nature (IUCN) Red List, also 13 cultural potentials in the form of art, traditions, sites, and local wisdom. Conclusion, Significance and Impact Study: The potential of abiotic and biotic, also cultural elements of Bantar Kulon Village are very valuable to be capitalized in the form of ecotourism activities. The aspirations of tourists are in Class IV, while the perception of the community towards the development of ecotourism in Bantar Kulon Village is in Class III. This study suggests that limited adjustments should be made, especially in the fulfillment of accessibility and facilities so that the development of tourism in Bantar Kulon Village is more in line with tourist aspirations
BETWEEN AWARENESS AND ACTION: UNDERSTANDING PUBLIC PARTICIPATION IN WASTE SORTING AND WASTE BANK PROGRAMS
No full textAim: Waste sorting at-source is vital for sustainable waste management and the circular economy in Indonesia. Despite regulations, community programs, and digital interventions, sorting remains limited. This study explores self-reported sorting behaviors among urban residents and examines how waste banks may enhance participation. Methodology and results: We surveyed 220 respondents from Indonesian major cities and applied Two-Step Cluster Analysis and chi-square tests to assess links between sorting behavior, socio-demographics, and waste bank participation. The main barriers were lack of space and time. The 57 respondents with access to a waste bank, only 14 were members; 43 were uninterested, often citing inconvenience. Active members were positive about the possibility of automation technologies, including automated sorting and collection, weighing machines for pricing, and digital payments. Many also suggested a mobile app to track deposits. Conclusions, Significance, and Impact: Technological innovations paired with incentives potentially reduce participation barriers. Integrating digital and automated solutions with behavioral insights may help overcome current limitations and foster a more effective circular economy in Indonesia
IMPROVED DYNAMIC BOTANICAL AIR PURIFIER WITH LIGHT EFFECT FOR REDUCING CO2 CONCENTRATION IN CHAMBER
Get PDFAims: This study aimed to investigate the effectiveness of the DBAP in reducing CO2 levels and improving indoor air quality. It also explores the impact of adding blue light to enhance photosynthesis. Additionally, the study examines the ability of the DBAP\u27s HEPA filter to reduce PM2.5 concentration. Methodology and results: The methodology used in this study involved testing the reduction of CO2 levels in plants using blue light as an enhancement. The researchers also developed a Dynamic Botanic Air Purifier (DBAP) that incorporated activated carbon and a fan as an active filter to improve CO2 reduction. The study measured the reduction level of CO2 in the plants with blue light enhancement, resulting in a 40% reduction. Subsequently, after adding the active filter to the plants, the CO2 reduction improved by an additional 11% compared to without the active filter. Additionally, the study found that the HEPA filter within the active filter effectively reduced the concentration of PM2.5 to 71.6%. Conclusion, significance and impact study: In conclusion, this study highlights the significance of addressing poor indoor air quality and its potential impact on occupant health and well-being. Developing the Dynamic Botanic Air Purifier (DBAP), incorporating plants, activated carbon, a fan, and blue light enhancement, offers a promising solution for improving indoor air quality and preventing Sick Building Syndrome (SBS). The findings of this study have the potential to inform the development of effective strategies and technologies aimed at creating healthier indoor environments, thus positively impacting public health and overall indoor air quality
BIOPLASTIC FROM TAPIOCA STARCH WASTE AND RICE WASTE
Get PDFBioplastic 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
EFFECT OF DETENTION TIME IN REDUCING FE AND MN CONCENTRATION OF GROUNDWATER: CASE STUDY AT THE UNIVERSITAS NEGERI MALANG
Get PDFGroundwater is a natural resource used by humans to fulfil their living needs which should meet the Republik Indonesia Minister of Health Regulation No. 2/2023. Aim: This research aims to contribute to solve these challenges and meet the clean water quality standard. Methodology and Results: The groundwater sample was taken from the deep well of Al-Hikmah Mosque, Universitas Negeri Malang (UM). It was indicated to contain Fe and Mn, as evidenced by its yellowish colour when left undisturbed for some time. A laboratory-scale experiment was conducted for the deep well treatment and analysis. The treatment system consists of aeration, sedimentation, and filtration. The filtration unit comprises several natural media such as gravel, silica sand, zeolite, and activated charcoal. This experiment used detention times of 120 and 240 minutes as dependent variables. Conclusion, significance, and impact study: The results showed that detention times of 120 and 240 min have efficiency on turbidity reduction of 92.86% and 98.69%, Total Dissolved Solids (TDS) of 10.42% and 14.47%, Fe of 23.01%, Mn of 62.39% and 94.70%, and for CaCO3 of 2.98% and 11.17%, respectively. The research findings demonstrated that a detention time of 240 min generated water quality that met the Minister of Health No. 2/2023 standards. Detention times of 120 minutes and 240 minutes led to significant differences in water quality concerning temperature and CaCO3. The filtration system with a detention time of 240 minutes can be considered as an alternative groundwater treatment solution for the deep well of Al-Hikmah Mosque, Universitas Negeri Malang
STUDY OF WATER QUALITY AT WEST SUNTER RESERVOIR, NORTH JAKARTA BASED ON PHYSICAL AND CHEMICAL PARAMETERS
Get PDFAim: This study is to determine effect of contamination level of population settlement activity on water quality in the reservoir at west Sunter by measurements of reservoir water quality in the form of physical and chemical parameters including the identification of the kinetics of COD. Methodology and Result: This research was conducted in April to August 2016 with 11 sampling locations. Research indicated that the reservoir had experienced heavy pollution with DO value ranging between 1.05 mg/L-1.52 mg/L with a minimum quality standard of 3 mg/L, Ammonia 0.13 mg/L-0.38 mg/L with a quality standard of 0.02 mg/L, surfactant (1.74 mg/L-4.63 mg/L) quality standard of 0.2 mg/L and phosphate (0.8 mg/L-1:19 mg/L) to the quality standard of 1 mg/L. Reservoir also were polluted with heavy loads inclusion of organic content with COD values ranging between 112.58 mg/L - 196.39 mg/L. The source of pollution in the west Sunter reservoir was derived from domestic sewage. Based on the average constant value it takes 16.96 hours to reduce the COD from 120 mg/L to 40 mg/L. Natural Retention time at West Sunter Reservoir is 13.6 days. Conclusion, significance and impact study: Domestic waste has obviously contaminated West Sunter reservoir from its physically green color, high organic content with high COD values, low DO, high oil and fat content, and high phosphate levels. These polluted compounds must be removed before spreading to the next water body. If the reservoir is considered as a reactor site, then the reservoir must be able to remove the contaminants before disposal
BIBLIOMETRIC ANALYSIS AND MAPPING OF ARTICLES PUBLISHED ON THE DEGREE OF URBANISATION METHOD IN THE SCOPUS DATABASE
Get PDFThe 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