bluuebunny/crossref_metadata_2025_split huggingface dataset:
Terminalia catappa leaf solution: an eco-friendly approach to managing color, algae, and microbial activity in aquaculture systems
Authors: Giang L V , Duong D V , Hang D T T , Tuyet L T H , Hai L N , Tran T 
Published: December 2023

Abstract
The sustainable advancement of aquaculture is critically tied to water quality in farming ponds, given its profound influence on the quality, productivity, and yield of aquaculture products. Although traditional water treatment methods are commonly used, there’s an emerging trend towards exploring economical, natural solutions. This study delves into the potential of Terminalia catappa leaf solution as an innovative means for improving water quality in tilapia farming ponds. Our methodology focused on assessing various leaf extract concentrations, specifically from 0.025% to 0.25%, to determine its efficacy in controlling algae growth. Daily evaluations were conducted, emphasizing key water quality indicators such as TKN, P, COD, TSS, color, and turbidity. The findings underscored the extract’s capability in managing algae proliferation. Importantly, a dosage of 0.2 ml of extract per liter of water emerged as the most potent concentration, effectively maintaining desired water quality over a 10-day span.
Analysis Of Isothermal Pyrolysis Process Of Municipal Waste Into Bio-Oil With The Addition Of Natural Catalyst (Zeolite) In Supporting National Energy Security
Authors: Hardiyanto M A , Sasongko N A , Almubaroq H Z 
Published: December 2023

Abstract
Conversion technology will continue to evolve. These developments started from the industrial revolution 1.0 to the industrial revolution 4.0, but in these developments even though technology solves a problem, it has the potential to cause new problems such as environmental problems. Environmental problems that can occur starting from energy conversion that is not environmentally friendly as well as the use of several technologies that cause pollutants that are quite dangerous if high intensity can even cause health problems, acid rain and climate change. The pyrolysis process has been proven capable of converting municipal solid waste (SPP) into bio-oil (BO) where most of the BO produced is hydrocarbon fuel with light oil (naphtha) and diesel types. Many studies have been carried out by various groups, but the raw materials used are single SPP components such as plastic, biomass, tire rubber, paper and not the real SPP. Therefore, this research was conducted to see the effect of using variations in zeolite catalyst concentration on the bio-oil produced. Variations in zeolite catalyst concentration are divided into concentrations of 0.25; 0.5; 0.75 and 1. For the pyrolysis test, it was carried out at a temperature of 400 ° C, with a reaction time of 60 minutes. From the results of experiments that have been carried out, the most ideal concentration for producing the most bio-oil products is at a concentration of 0.5. This indicates that the more catalysts are used in the pyrolysis process, the more syngas products will be produced. So the use of catalysts in the pyrolysis process can increase thermal efficiency and the pyrolysis process can be carried out at low temperatures for the production of bio-oil from mixed waste. If following national oil needs and these reserves continue to be exploited, Indonesia will only have oil reserves for the next 7-8 years or until 2028. Another problem is that the use of conventional fuel oil will produce large amounts of CO2 and will make a major contribution to climate change and global warming.
Unlocking eco-industry: green knowledge and good manufacturing practice fish scale waste utilization
Authors: Irawan N C , Heriyanti S S , Esthi RB 
Published: December 2023

Abstract
Scales such as fish waste are considered worthless, even though they can be used as raw materials for collagen-making. This fish waste management process also contributes to reducing the problem of environmental pollution due to the disposal of fish waste that is not managed correctly. This study aims to determine the relationship between green knowledge upskilling (GKU) of employees, good manufacturing practice (GMP), and eco-performance (EP). The research site was determined by conducting a census of the 35 personnel at PT Marine Biogel Indonesia in Boyolali. The research model uses structural equations (SEM), and the analysis method uses partial least squares. The results show that GKU has a positive and significant effect on GMP. Second, GKU has a positive and significant effect on EP. Third, GMP has a positive and significant effect on EP. Finally, GKU positively and significantly affects EP mediated by GMP. Implementing eco-friendly production practices can increase the utilization of fishing industry waste on a large scale.
Effect Of Green Education-Training Quality And Green Knowledge Sharing On Eco-Friendly Technology Adoption In Crabs Agroindustry Companies
Authors: Esthi RB , Irawan NC , Susilowati Y , Kartini TM , Widodo Z D 
Published: December 2023

Abstract
This study examines the effect of the quality of green education training and green knowledge sharing on adopting eco-friendly technologies in crab agroindustry companies. This study used a quantitative approach, and data was collected through questionnaires from 120 respondents. The results showed that the quality of environmental education training positively and significantly affected the adoption of eco-friendly technologies. A similar positive and considerable effect on the adoption and use of eco-friendly technologies is shown by the practice of sharing green knowledge. In addition, the study results show that the quality of environmental education training positively and significantly influences environmental knowledge sharing. This research provides an essential contribution to stakeholders in the crab industry and the agro-industrial sector, in general, to increase the adoption of eco-friendly technologies by increasing the quality of environmental education-training and sharing of environmental knowledge. In a global context that is increasingly aware of environmental issues, this research can provide direction for industries to consider important factors such as quality of education and knowledge sharing to encourage the adoption of eco-friendly technologies in their business practices.
Study of the Characterization of Tin Iron From Slag and Its Potential Applications
Authors: Adisyahputra  , Afriza G 
Published: December 2023

Abstract
An analysis and study of the potential utilization of tin-iron tailings resulting from processing and refining tin in Bangka Belitung has been carried out. Prior to characterizing the iron tin from the sampling results, it was grinded to make it smooth. Then characterized using XRF and XRD. From the results of the XRF analysis, it was found many mineral content but the dominant metal content was Fe with 64.5%. This is also supported by the results of XRD analysis.
Operation And Maintenance Of Cengklik Reservoir In Supporting Integrated Water Resources Management
Authors: Rahadian Rahmat S , Kurniawan Adhy , Mahdiyah Jayatri Fatimah Nurul , Surya Sembada Pratama Tirza , Wijayanti Estu 
Published: December 2023

Abstract
The management of the Cengklik Reservoir area which currently still has the main function as an irrigation facility with an area of 1,578 ha is still in the feasible category to be developed as a means of tourism and sustainable aquaculture. The development of the Cengklik Reservoir area in 2022 has entered the stage of developing supporting infrastructure such as a jogging track area, reservoir guardrails, arrangement of fish cage cultivation areas, and other infrastructure developments. This must also be balanced with a good pattern of management of operation and maintenance (OP) activities in the form of documents prepared by referring to the Reservoir Operation and Maintenance (OP) Guidelines. The method used in this research is simulation and evaluation on hydrological analysis using a flood design of 476.40 m3/s and an average flood water level of +142.64 m. The data used to measure the management of water resources in the Cengklik Reservoir is based on data hydrology, inflow, and outflow of the Cengklik Reservoir from 2010-2021 based on observations from the Bengawan Solo River Basin Center (BBWS). According to the evaluation results with measured parameters, it was found that the pattern of operation and maintenance of the Cengklik Reservoir is in the feasible category with the need for funding for the operation and maintenance of the reservoir of IDR 474,397,817.00 So that the integrated water resources development that has been carried out in the Cengklik Reservoir can be replicated in the reservoir others throughout Indonesia.
Study of adsorption isotherms and kinetic models for lead (II) in the mining pit water at Bangka on shrimp waste chitosan
Authors: Aldila H , Indriawati A , Kusmita T , Rahmadyani H , Dalimunthe D.Y 
Published: December 2023

AbstractThe isotherms and kinetic adsorption models for lead (II) in the mining pit water at Bangka on Shrimp Shells Waste Chitosan (Sw-Chi) was studied. The Sw-Chi from the dried shrimp (generallyPenaeus semisulcatusspecies) waste were extracted via deproteinization, demineralization, decolorization and deacetylation steps at previous work. The chitin deacetylation values of Sw-Chi was 88.98% determined through FTIR spectra using baseline method. The initial lead (Pb (II)) concentration in this study was 0.41 ppm from open-pit water in Sungailiat district, Bangka Island. The performance of Sw-Chi adsorption on lead in the pit water with the ratio of 1:500 (w/v) in variation contact time while stirring at room temperature. The adsorption isotherms and kinetic models for lead in the mining pit water at Bangka follows the pseudo-second-order (PSO) and the Freundlich isotherm (F-Isoth) model. The adsorption mechanism may be due to Van der Waals forces and formed lead multilayer onto Sw-Chi surfaces.
The effect of plate variations on the improvement of the quality of cual batik liquid waste using the electrocoagulation method
Authors: Kurniawan W B , Khadijah K 
Published: December 2023

Abstract
Batik Cual is one of the archipelago’s traditions in Bangka Belitung Province. As the production of cual batik cloth increases, it is accompanied by an increase in production waste of liquid waste. Cual batik waste contains remasol dye which is carcinogenic. Therefore, proper and safe waste management for the surrounding environment is needed. Electrocoagulation is a method without chemicals in the coagulation process and is able to reduce turbidity and color parameters. The various types of plates (aluminium, copper, and zinc) used in the electrocoagulation process aim to determine the level of improvement in the quality of cual batik wastewater before and after the electrocoagulation process. The test results show that the level of improvement in waste quality for the level of turbidity, color, and pH occurs in copper type plates.
Range expansion of Red devil cichlid Amphylopus labiatus, (Günther, 1864) (Actinopterygii: Cichlidae) in Bangka Island, Indonesia
Authors: Jatayu D , Insani L , Valen F S , Ramadhanu D , Hafidz A M , Susilo N B , Swarlanda  , Sabri A , Islamy R A , Tamam M B , Hasan V 
Published: December 2023

Abstract
Red devil cichlid Amphylopus labiatus is the most successful invasive species in worldwide including Indonesia. This species is originally to Lake Managua, Nicaragua Central America. In Indonesia, The Red devil cichlid was widely introduced by the ornamental fish trade around 1990. Now, the population of The Red Devil on the mainland has extremely increased, and is known as an Invasive fish. An invasive species literally have a negative impact on aquatic communities disturbing the native and dominating the ecosystem because an invasive species has great adaptability and is able to reproduce quickly to make a giant population in an ecosystem. In this research, we present the range expansion of an invasive Red devil cichlid A. labiatus to Bangka Island, Indonesia. Through this research, we will provide knowledge about the extent of the Red devil cichlid invasion and its impact on local species.
Application of the use of local natural materials as cement treated base materials
Authors: Yofianti D , Latuconsina U A 
Published: December 2023

Abstract
The use of local natural materials as alternative materials in road construction could save construction costs, especially for Maluku Province. One of the local natural materials in Maluku Province is Limestone in Kelan Village and Kaliobar Village. Therefore, this study aims to see how far the use of limestone to be applied as a cement treated base material. Before being applied, the limestone is tested first in the laboratory. After the limestone was applied as a cement treated base (CTB) material, compaction and compressive strength tests were carried out. The number of CTB compressive strength test specimens was 26 samples from STA 4+100 to STA 8+900. The limestone on Larat Island is unique in that it contains the composition CaCO3 (Calcium Carbonate), which is the result of shallow sea sedimentation. The potential of limestone in the work location area has not been utilized optimally to improve the economic level of the community. The test results show that the compressive strength values obtained are still within the interval range, namely between 25 - 40 gr/cm2. Therefore, it can be concluded that the CTB mixture material at this location meets the requirements to be used as a foundation layer for road pavement using local natural materials.
Techno-economic analysis of Castor (Ricinus communis) Oil Refinery Process Simulation
Authors: Nugroho U , Hidayatullah I M , Farizal  , Darmawan M A , Efendi M Y , Muryanto  , Gozan M 
Published: December 2023

Abstract
Castor (Ricinus communis) plants have been cultivated. Castor oil has been cultivated and has become one of the world’s major commodities, with the leading producer being India. Castor oil’s primary products and derivatives include Hydrogenated Castor Oil (HCO), polymers, lubricants, and biodiesel. Conventional extraction is usually done using a machine or hot water extraction methods. In large industries, extraction is carried out to obtain high purity with the help of solvents. Organic solvents are suitable for extraction, such as methanol, ethanol, and n-hexane, which are the most commonly used. This research aims to obtain techno-economic feasibility through a simulation of castor oil production using SuperPro Designer version 13.0. The extraction process is carried out in two stages: mechanical extraction followed by water degumming, neutralization, and adsorption with activated carbon. Production capacity and technology used are adjusted to existing companies and literature. From the results of the economic analysis, this production process is feasible with an IRR of 32.11%, a PBP of 3.25 years, and a BC Ratio of 1.05.
Effect of Adding Global Geopotential Model Generated Data to Terrestrial Data on Geoid Model (case study at Bekasi, Indonesia)
Authors: Sabri L M , Susilo Susilo , Ramdani Dadan , Hadi Firman , Wahyuddin Yasser 
Published: December 2023

Abstract
Geoid modeling requires accurate and evenly distributed gravity data throughout the study area. Although airborne gravity measurements are getting more massive, some areas are politically restricted areas. Therefore, terrestrial measurements are still needed, such as in Bekasi City and its surroundings. In terrestrial geoid modeling, ideal conditions are often difficult to achieve, because terrestrial measurements can only be made in accessible, safe, and permitted places. These non-ideal conditions result in an uneven distribution of data which can decrease in the accuracy of the resulting geoid. One way to overcome this data acquisition problem is to fill in the data using synthetic data calculated from the global geopotential model data. This study aimed to analyze the effect of using EGM data on geoid accuracy. The data needed for this research were terrestrial gravity data, EGM2008, and SRTM30 Plus, and GEBCO. The geoid was calculated using several calculation modules from Gravsoft. Specific modifications were made using Simply Fortran to facilitate geoid modelling with integral of Hotine. This research was conducted with two scenarios, namely geoid calculations using only terrestrial gravity data and geoid calculations using a combination of terrestrial data and EGM2008. The accuracy of the geoid was analyzed based on the magnitude of the deviation between the local Bekasi geoid and the national geoid represented by INAGEOID2020 2020 version 2. Free Air gravity anomaly provide by Badan Informasi Geospasial were converted to be gravity disturbance data on the earth’s surface. The secondary data gravity disturbance was calculated from EGM2008 with n=360 and n=2190. The geoid calculated from terrestrial geoid data alone produced the largest offset to the national geoid. Combination of terrestrial gravity data and generated data from EGM2008 n=360 performed higher precision geoid.
Landslide Inventory and Disaster Management Based on Community Participation for Sustainability Environment in the Volcanic Area
Authors: Masruroh Heni , Sumarmi  , Bachri Syamsul , Putra Alfyananda Kurnia , Andhika Yudha P 
Published: December 2023

Abstract
Landslides are still an essential problem for areas with rough morphology. There are several ways to map landslide vulnerability that can be used to reduce disaster risk. To produce maps with high accuracy is one of the challenges. This study proposes a community-based landslide inventory mapping approach. Communities are important in providing information about disaster events and are essential to disaster management. The aims of this study are 1) to conduct field investigations for the community for landslide inventory; 2) to identify and analyze the role of the community in disaster risk reduction for a sustainable environment. The method used in this research is using participatory mapping (P-GIS) and focus group discussion. The community is participatively asked to reconstruct past landslides. Community-based landslide data inventory using geospatial technology in the form of remote sensing imagery as support. The results of community participation showed that there were 138 landslides with translational and rotational landslide typologies. There is a community role in reducing the risk of landslides through the Taji Village Disaster Preparedness Community (SIBAT). The management model for land management carried out by the community is based on the principles of environmental sustainability in the form of easy application, local-based materials, local-based culture, and local-based knowledge, and provides sufficient economic income.
Flood Affected Building Footprints 3D Model from LiDAR and Aerial Photogrammetry (Case Study: Pandugo Street, Surabaya)
Authors: Hapriansyah Sultan Alifian , Handayani Hepi Hapsari , Maulana Mahendra Andiek 
Published: December 2023

Abstract
Frequent rainfall events in Surabaya occurred due to tall silt within the channel, which prevent water flow and at that point flooding onto the street. Information about the events, including the simulation and prediction are needing accurate visualization to be major consideration for infrastructure and public facilities decision-making. 3D modelling are accurate enough as flood disaster risk management for buildings, using LiDAR and aerial photogrammetry that can provide strong visual representations accurately. DSM and DTM derived from aerial photogrammetry survey are then used to get DSM LiDAR. DSM&DTM from LiDAR was taken in 2016 and DSM&DTM from aerial photogrammetry was taken in 2022. The only objects that are updated are buildings from DSM aerial photogrammetry then applied to DSM LiDAR. Buildings footprint, road network, nDSM, and flood inundation data are then processed to get the 3D Model of buildings and floods. The model are then evaluated by comparing the total of affected buildings with manual methods. Validation on buildings height also performed and results in 0.86233 RMSe that achieved the LOD2 standard. Potential further studies could focus on improving the LOD and considering other parameters such as rainfall data or gutter data.
3D Building Visualization Using LOD1 Level Lidar and Orthophoto Data (Case Study: Jalan Tambak Mayor Surabaya)
Authors: Putri Klarissa Ardilia , Maulana Mahendra Andiek 
Published: December 2023

Abstract
Surabaya is the second largest city in Indonesia after Jakarta, with a population of more than 2.8 million people. As the second largest city after Jakarta, of course Surabaya is classified as a city with a high population and building density. With this high level of building density, it is necessary to carry out good regional planning. Good regional planning is an important tool in creating cities and regions that are sustainable, environmentally friendly and provide a high quality of life for their residents. It also helps in addressing complex urban challenges and ensuring wise use of resources. Currently, various methods and technologies have developed that make it easier for the government to carry out regional planning. One method that can be used is to carry out 3D city modeling. Three-dimensional (3D) modeling is a technique used to create a digital model of an object or environment in three dimensions, using computer software capable of producing 3D images based on the data provided. Three-dimensional modeling for buildings with LOD1 level utilizes data obtained from field surveys, remote sensing and numerical modeling. Through this research, 3D city modeling was carried out using LiDAR data and aerial photography to analyze the condition of buildings in the Jalan Tambak Mayor area. This approach uses a 3D city model as the basis for analysis using ArcGISPro software. In this research, data updating will be conducted, which involves directly capturing aerial photographs in the field, as the existing aerial photograph data is from 2016 and needs to be renewed. Based on the resulting modeling, the results of 3-dimensional building modeling are shown on a map which is classified into 5 classes with a building height range between 0 - 46 meters.
Analysis Of 3-D Building Modeling Using Photogrammetric Software: Agisoft Metashape And Micmac
Authors: Rahman A.D.M , Cahyono A.B 
Published: December 2023

Abstract
In constructing three-dimensional models, photogrammetry techniques, particularly close-range photogrammetry techniques, are growing and becoming an alternative, specifically for architectural and historical site modeling. Because they are less costly, simpler, and quicker to complete while producing positive results, there is a great number of photogrammetry software. Still, it is difficult to determine which application provides the best measurement results because user expectations vary. It is necessary to conduct geometric precision and visualization analyses to assess the software’s output. For this experiment, 3D models of a building were created using Agisoft Metashape and MicMac. The geometric accuracy calculated by Agisoft Metashape has RMSE values of x=0.025 m, y=0.037 m, and z=0.021 m. RMSE values for the MicMac are x=0.066 m, y=0.129 m, and z=0.118 m. Visually, the Agisoft Metashape-created three-dimensional model offers superior visual results and fewer connection points than the MicMac GUI. On a three-dimensional building model processed with Agisoft Metashape, the generated cloud-to-cloud distance is comparable to the distance between the reference point cloud. Except for the building’s rear, the distance between clouds using the MicMac is nearly identical to that of the reference point cloud.