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All Journal Reaktor The Journal of Pure and Applied Chemistry Research Biology, Medicine, & Natural Product Chemistry Jurnal Pengabdian Kepada Masyarakat (Indonesian Journal of Community Engagement) Jurnal Fourier Sumatra Journal of Disaster, Geography and Geography Education Jurnal Kimia Terapan Indonesia Aplikasia: Jurnal Aplikasi Ilmu-Ilmu Agama Molekul: Jurnal Ilmiah Kimia Jurnal Bakti Saintek: Jurnal Pengabdian Masyarakat Bidang Sains dan Teknologi Integrated Lab Journal Journal of Tropical Chemistry Research and Education Kaunia: Integration and Interconnection of Islam and Science Journal Jurnal Ilmiah Berkala Sains dan Terapan Kimia International Journal of Disaster Management
Didik Krisdiyanto
Jurusan Kimia, Fakultas Sains Dan Teknologi , UIN Sunan Kalijaga Yogyakarta
Religion Agriculture, Biological Sciences & Forestry Humanities Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Economics, Econometrics & Finance Education Energy Engineering Environmental Science Industrial & Manufacturing Engineering Materials Science & Nanotechnology Mathematics Medicine & Pharmacology Physics Public Health Social Sciences Other

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Adsorption and Desorption Metal Cu (II) using Zeolite Synthetic by Bottom Ash Coal Modified Dithizone Yuan Sidarta; Didik Krisdiyanto; Khamidinal Khamidinal
Kaunia: Integration and Interconnection Islam and Science Journal Vol. 18 No. 2 (2022)
Publisher : Fakultas Sains dan Teknologi UIN Sunan Kalijaga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14421/kaunia.3706

Abstract

Zeolite synthetic and zeolite modified dithizone has been succesfully created by hydrotermal method. The aim of this research is to know the characteristics of zeolite synthetic and zeolite modified dithizone and to know capacity of adsorption and desorption. The effect of various variables, such as pH, concentration of Cu (II), contact time and temperature was investigated using batch process,  characterization zeolite modified dithizone and zeolite synthetic using XRD,  XRF, FTIR and GSA. The result of characterization bottom ash coal by hydrotermal reaction using XRF, be discovered composition Si as many 82,01% and Al 8,54%. product of melting hydrothermally indicate a specific zeolite IR absorption at a wavelength of 300-1250 cm-1. The result XRD showed that be found zeolite-X, zeolite-A, zeolite sodalite and difatogram of dithizone. Zeolite modified dithizone has been succesfully synthesized with a marked presence group of –NH and –SH by using FTIR. Zeolite modified dithizone surface area change from 160,262 m2/g to 69,609 m2/g. The best adsorption metal Cu(II) by zeolite synthetic is pH 7. Kinetics adsorption zeolite synthetic and zeolite modified dithizone follow kinetics of pseudo second orde, with R2 respectively 0,7378 and 0,8689, rate constant of pseudo second orde adsorption at zeolite synthetic  is -0,017 g/mg.min-1 and zeolite modified dithizone -0,013 g/mg.min-1. Isotherm type for both of adsorbent follow Langmuir isotherm. Desorption of metal Cu(II) on zeolite modified dithizone and zeolite synthetic a lot off obtained using HCl at level 47,08% and 41,49% respectively.
Analysis of School Disaster Preparedness in Mount Merapi Eruption-Prone Areas: A Case Study in Sleman Regency, Yogyakarta Krisdiyanto, Didik; Farihah, Tutik
Sumatra Journal of Disaster, Geography and Geography Education Vol. 8 No. 1 (2024): Sumatra Journal of Disaster, Geography and Geography Education (June Edition)
Publisher : Sumatra Journal of Disaster, Geography and Geography Education

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/sjdgge.v8i1.591

Abstract

Indonesia, situated within the Pacific Ring of Fire, exhibits a unique combination of dynamic tectonic plates and active volcanoes, rendering it susceptible to various seismic activities, ranging from minor tremors to large-scale earthquakes (megathrust). Volcanic eruptions, a prevalent natural disaster in Indonesia, pose significant threats due to the presence of over 130 active volcanoes, with 129 concentrated on Java Island alone. Among these, Mount Merapi stands out as the most active and perilous, situated 30 kilometers north of Yogyakarta City, spanning the administrative boundaries of Yogyakarta Special Region and Central Java. Educational institutions, particularly schools, serve as vital hubs equipped with resources and infrastructure that demand meticulous preparation for potential disasters. This research endeavors to assess the level of school preparedness in the face of disasters, with a specific focus on volcanic eruptions. Through data processing and analysis, it is discerned that Y Primary School in Girikerto village exhibits the highest average preparedness score across five criteria: disaster management plan, community action plan, rehabilitation efforts, early warning system, and competency (89.66%). This is followed by X Primary School (82.39%) and Z Primary School (22.61%). In a broader context, the study reveals that 17.4% of respondents exhibit low preparedness, 4.35% fall within the medium preparedness category, while 34.8% and 43.5% demonstrate high and very high preparedness respectively.
Community Empowerment Through Bamboo Laminate Technology as Part of Disaster Conservation and Mitigation in Wonokerto, Turi, Sleman, Yogyakarta Krisdiyanto, Didik; Farihah, Tutik; Supriyati, Hikmah
Jurnal Pengabdian kepada Masyarakat (Indonesian Journal of Community Engagement) Vol 10, No 1 (2024): March
Publisher : Direktorat Pengabdian kepada Masyarakat Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jpkm.79899

Abstract

Bamboo is included in the classification of grasses, but because of its large size compared to other types of grass, bamboo is also called "giant grass". Bamboo has the ability to grow fast, reaching 30-100 cm per day. The target of this community service is the empowerment of the Daerah Istimewa Yogyakarta (DIY) Search and Rescue (SAR) Team in Wonokerto to become a transfer agent for laminated bamboo technology through the training provided. The approach used in this community service is based on research that has been carried out in universities (research-based community development) by involving potential communities as social agents and potential assets (assessed-based community development) in the community to support Mount Merapi as a National Strategic Area (KSN). In training implementation, the participants showed high contribution in providing training material, attendance, and involvement. Based on the training survey on bamboo laminate technology, 80.59\% of respondents know the identification material, stage of preparation material, identification of connection mixture, identification of lamination stage, and quality check of laminated bamboo lumbar. The proposed training or assistance for sustainability community services are marketing, business planning, product design, and quality products.
Workload Analysis of Rapid Response Team Regional Disaster Management Agency at the Support Command Post of the COVID-19 Task Force Special Region of Yogyakarta Indonesia Farihah, Tutik; Krisdiyanto, Didik; Murtono, Murtono; Khamidinal, Khamidinal
International Journal of Disaster Management Vol 7, No 1 (2024)
Publisher : TDMRC, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24815/ijdm.v7i1.36714

Abstract

This Study evaluated mental workload of Rapid Response Team ((RRT) Regional Disaster Management Agency in Special Region of Yogyakarta as funeral team along COVID-19 pandemic. Mental workload is formed due to differences between individual abilities and performance demands of a task within a certain time. NASA TLX is the most widely used mental workload measurement, capable of being used in several levels of workload and sensitive to low workloads. The Rapid Response Team is a team to ensure that the disaster management process carried out quickly, accurately, skilled personnel to back up the medical team who continue to work hard so that the handling of the pandemic virus is better, and the virus does not spread. In this study, the subject of research is the funeral team of Rapid Response Team ((RRT) Regional Disaster Management Agency in Special Region of Yogyakarta Indonesia. Sampling data was collected online and offline using the Goggle Form in the range March-April 2021. There are 28 team members of the RRT who filled out the questionnaire. Workload assessment using the NASA-TLX and OWL methods falls within the range of medium (45.58458; 0.610535), high (74.73789; 0.739889), and very high (87.7969; 0.879976), with an average workload value of high (75.9935; 0.748672). Based on statistical tests using paired t-tests and one-way ANOVA, both methods are declared to be equivalent. The dimension that predominantly contributes to workload according to the NASA TLX method is Effort, followed by Mental Demands. Meanwhile, the factor that predominantly forms the workload according to the OWL method is S2 (Environmental Workloads, sub-factors: improper temperature, chemical exposure), followed by S3 (Body Motion and Postural Workloads, sub-factors: stooping, standing). The research findings offer manual guidance for workload identification, particularly utilizing OWL, serving as the foundation for workload assessment for teams involved in COVID-19, particularly in Indonesia. Additionally, this study also demonstrates that the OWL method possesses the same level of reliability as the NASA-TLX method.
Co-Authors ABDULLAH FAQIH Cici Nurfaizah Endaruji Sedyadi Endaruji Sedyadi Endaruji Sedyadi Hikmah Supriyati Hikmah Supriyati Irwan Nugraha Irwan Nugraha K. Khamidinal Khamidinal Khamidinal Khamidinal Khamidinal Khamidinal Khamidinal Khamidinal Khamidinal Khamidinal Khamidinal Khamidinal Khamidinal Khamidinal Khamidinaldan Irwan Nugraha Khoirul Wahyu Wahidatun Ma’rifat Ma’rifat Milatun Nasihah Moh. Noor Salman Mohammad Farhan Qudratullah Murtono Murtono Pedy Arsanti Pedy Artsanti Reyza Anni Mufidah Riandy Putra Rohmah, Lailati Siti Khuzaifah Sofa Mauliyana Sudarlin - Supriyati, Hikmah Tutik Farihah Yuan Sidarta