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All Journal International Journal of Applied Power Engineering (IJAPE) International Journal of Science and Engineering (IJSE) TEKNIK Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan MEDIA KOMUNIKASI TEKNIK SIPIL METANA Jurnal Kreatif Tadulako Online Jurnal Kesehatan Masyarakat Indonesian Journal of Conservation Waste Technology Primary: Jurnal Pendidikan Guru Sekolah Dasar Al Fikra : Jurnal Ilmiah Keislaman Jurnal An-Nur Jurnal Teknik Mesin Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Tarbawi: Jurnal Keilmuan Manajemen Pendidikan Jurnal Teknologi Pendidikan PROSIDING SEMINAR NASIONAL PROGRAM PASCASARJANA JURNAL PENDIDIKAN TAMBUSAI MUHARRIK: JURNAL DAKWAH DAN SOSIAL Warta Penelitian Perhubungan Science Midwifery Economics and Digital Business Review Al-Liqo: Jurnal Pendidikan Islam Telcomatics Bioinformatics and Biomedical Research Journal J-ESA (Jurnal Ekonomi Syariah) ANTHOR: Education and Learning Journal KOLONI Paradoks : Jurnal Ilmu Ekonomi Jurnal Profesi Insinyur Indonesia Tabayyun JER Jurnal ELTEK Jurnal Sistem Informasi, Akuntansi dan Manajemen Reflection: Islamic Education Journal ANTHOR: Education and Learning Journal Warta Penelitian Perhubungan

Syafrudin Syafrudin

Environmental Engineering Department, Faculty Of Engineering, Diponegoro University Semarang

Author-ID : 398670

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Hilangnya Identitas Budaya pada Perilaku Remaja Kabupaten Dompu (Studi Kasus : Dusun Ria Desa Riwo Kabupaten Dompu) Irwansyah, Irwansyah; Syafrudin, Syafrudin; Mulyati, Mulyati
Jurnal Pendidikan Tambusai Vol. 5 No. 3 (2021): 2021
Publisher : LPPM Universitas Pahlawan Tuanku Tambusai, Riau, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (135.12 KB)

Penelitian ini dilatarbelakangi oleh banyaknya masalah yang di timbulkan oleh para remaja di Kabupaten Dompu, berdasarkan permasalahn tersebut penelitian ini bertujuan mendeskripsikan hilangnya identitas budaya pada perilaku remaja Kabupaten Dompu. Adapun metode dalam penelitian ini adalah menggunakan metode wawancara secara tatap muka, dokumentasi dan obeservasi, tentang hilangnya identitas budaya pada perilaku remaja kabupaten Dompu, dengan menggukan kemudian, informan yang di ambil berjumlah 5 orang di Dusun Ria , adapun jenis atau jabatan informan adalah sebagai berikut Tokoh Agama, Toko Masyarakat, Ahli budaya dan Tokoh pemuda. Berdasarkan hasil penelitian Hilanya identitas budaya pada perilaku remaja Kabupaten Dompu, ditemukan bahwa telah terjadi pengikisan budaya hal itu di buktikan dari adanya sikap remaja yang sangat jarang mengungkapkan kata santabe (permisi) dan kata Lembo Ade (lapang dada) pada setiap penerapan perilaku social mereka, tentunya hal telah membuktikan bahwa kemajuan jaman dan teknologi seperti halnya di ungkapkan oleh para informan tenyata tidak hanya mempengaruhi dunia pendidikan dan industri teknologi saja, namun kemajuan jaman dan teknologi ini juga membawa dampak buruk pada sikap dan perilaku remaja di Kabupaten Dompu lebih kususnya di Desa Riwo Dusun Ria.

THE EFFECT OF INFLUENT CONCENTRATION AND HYDRAULIC LOADING RATE (HLR) TO BOD AND COD REMOVAL ON ARTIFICIAL DOMESTIC WASTEWATER TREATMENT (GREY WATER) USING UASB REACTOR Syafrudin Syafrudin; Sudarno Sudarno; Purwanto Purwanto; Iin Novitasari
International Journal of Science and Engineering Vol 7, No 1 (2014)
Publisher : Chemical Engineering Diponegoro University

Upflow anaerobic sludge blanket (UASB) reactor is one of anaerobic biological treatment was develop in late 1970’s. UASB reactor is suitable for the tropic areas because it has a high temperature about 20°-30°C. Domestic wastewater is divided into two types, namely black water and grey water. But in this case used domestic grey water. Grey water is household wastewater from showers, sinks and kitchen. Grey water has a total 75% of the domestic wastewater volume. The research was conducted in laboratory scale. This study performed a variation of Hydraulic Loading Rate (HLR) and the influent concentration. There were 25 reactors include 5 variations of influent concentration and 5 Hydraulic Loading Rate’s (HLR) variation. The research could asses BOD5 and COD removal with treatment in UASB. Efficiency of BOD5 removal by varying the influent concentration and HLR was about 38%-75% and COD was about 40%-77%. The lower concentration could be increase efficiency BOD5 and COD removal. Influent concentration optimum occurred when middle concentration was about 840 mg/L COD and HLR optimum was 0,05 m3/m2/hour.

Management of Peat Fires on Smoldering Phase (Case Study: District Siak and District Kampar Riau Province) Syafrudin Syafrudin; Haryono S. Huboyo; Bella Nasila D
Waste Technology Vol 3, No 2 (2015)
Publisher : Diponegoro University

The difficulty of finding land for farming activities in Indonesia caused some communities began to switch utilizing peat land for agricultural areas such as oil palm. Oil palm plantation is a commodity that has been developed in Indonesia.Oil palm planted area has increased rapidly.Since 1967 extensive oil palm plantations has increased 35times to 5.6 million ha in 2005 and about 7.8 million ha in 2009. The biggest expansion of oil palm plantations occur in 6 province,one of them is Riau.Most people take a practical way to open agricultural areas by burning peat.Riau Province in Indonesia is one of the major hotspots for peat fires during the dry season. Peat fire at smouldering phaseemits a lot of compounds that are not completely oxidized (e.g. CO, VOCs, PAHs) that more dangerous than the emissions released during combustion at flaming fires. Particulate Matter (PM 2.5) is one of the emissions from peat fires too.However, existing data on VOCs and PM 2.5 of smoke from peat fires Indonesia is still limited.The aim of this study was to analyze the concentration of VOCs and PM 2.5 on emissions from peat fires in the Langkai Village Siak District and RimboPanjang Village Kampar District Riau Province when compared with background site and the permissible exposure limit and provide recommendations based on the results of this research.VOCs measurement method is based on NIOSH 1500 and EPA TO-17 while the PM 2.5 based on IMPROVE A method. The average concentration of PM 2.5 is 996.72 ± 531.01μg/m3. PM2.5 concentrations increased (compared with the background site) was very high at 4,838%.This condition causes a decrease in air quality and serious health problems. While the results of the maximum TVOCs concentration obtained in Siak District was 391,880 g/m3, while in Kampar Districtwas 195,940 g/m3. TVOCs concentration atSiak Districtwas 130.63 times greater than the existing quality standards, while at Kampar District regency was 65.31 times.Environmental improvement recommendations based on the results of this research were buffer zone areadesign to reduce air pollution as a result of peat fires and sealing the ditchs to prevent the spread of fires.

The Utilization of Bottom Ash Coal for Briquette Products by Adding Teak Leaves Charcoal, Coconut Shell Charcoal, and Rice Husk Charcoal Syafrudin Syafrudin; Badrus Zaman; Indriyani Indriyani; A. Stevie Erga; H. Bunga Natalia
Waste Technology Vol 3, No 1 (2015)
Publisher : Diponegoro University

The limitations of the availability of energy sources especially fuel oil has become a serious threat for the society. The use of coal for energy source as the replacement of fuel oil, in one hand, is very profitable, but on the other hand, will cause problem which is the coal ash residue. This coal ash is a by-product of coal combustion. This coal ash contains bottom ash. Through this observation, the bottom ash can be processed to be charcoal if added by teak leaves, coconut shell, and rice husk. Also, this observation needs to add binder materials for further processing in order to form briquette. It can be used as alternative fuel, the utilization of bottom ash and biomass will give positive impact to the environment. This observation was conducted by using compositions such as bottom ash, teak leaves, coconut shell, and rice husk. The treatment was using comparison 100%:0% ; 80%:20% ; 60%:40% ; 50%:50% ; 40%:60% ; 20%:80% ; 0%:100%. The result that the best briquette was on the composition of 20% bottom ash : 80% coconut shell. The characteristic values from that composition were moisture content of 3.45%, ash content of 17,32%, calorific value of 7.945,72 Cal/gr, compressive strength of 2,18 kg/cm2, level of CO of 105 mg/m3, and heavy metals Cu of 29,83 µg/g and Zn 32,99 µg/g. The characteristic value from each briquette composition treatment showed that the increasing usage proportion of biomass as added material for briquette was able to increase its moisture content and calorific value. Besides, it is also able to decrease its ash content and compressive strength

Potensi Material Sampah Combustible pada Zona II TPA Jatibarang Semarang sebagai Bahan Baku RDF (Refuse Derived Fuel) Lucy Amena Sembiring; Ika Bagus Priyambada; Ganjar Samudro; Baskoro Lokahita; Irawan Wisnu Wardhana; Mochtar Hadiwidodo; Syafrudin Syafrudin
Jurnal Teknik Mesin Vol 7, No 1 (2018)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jtm.v7i1.2240

Jumlah penduduk yang meningkat juga meningkatkan jumlah kebutuhan energi. Namun, sumber daya yang tersedia juga semakin berkurang. Sehingga perlu digantikan dengan energi yang baru. Sampah yang meningkat dan pengolahan yang sangat sedikit dapat dijadikan sumber energi yang baru bagi masyarakat dengan konsep waste to energy (WTE). Salah satunya yaitu dengan mengubah sampah menjadi bahan baku RDF (refuse-derived fuel). RDF merupakan salah satu teknik penanganan sampah dengan mengubah sampah menjadi sesuatu yang bermanfaat yaitu bahan bakar. Sampah sangat berpotensi menjadi bahan baku RDF terutama organik dan plastik sebagai sampah yang mudah terbakar (combustible). Sampah tersebut dapat dimanfaatkan menjadi bahan baku RDF dengan cara menganalisis nilai kalor yang dihasilkan. Untuk menganalisis nilai kalor pada sampah combustible zona aktif II TPA Jatibarang dapat dilakukan dengan cara pengujian sampel sebanyak 100 gram dengan alat bom kalorimeter. Sampel tersebut diambil pada kedalaman 0-3 m dengan metode random sampling. Kemudian akan didapat nilai kalor tinggi yang dihasilkan sampel tersebut. Nilai Kalor Tinggi yang dihasilkan sampel tersebut sebesar 5,69 kkal/ton pada kedalaman 0-1 m, 6,07 kkal/ton pada kedalaman 1-2 m dan 5,94 kkal/ton pada kedalaman 2-3 m. Nilai kalor tinggi yang dihasilkan sampah combustible tersebut menunjukkan bahwa semakin rendah kedalaman sampah maka akan semakin tinggi nilai kalor yang dihasilkan dan sampah tersebut berpotensi sebagai bahan baku RDF.

Potensi Sampah Combustible pada Zona Aktif 1 TPA Jatibarang Semarang sebagai Bahan Baku RDF (Refuse Derived Fuel) Rizki Tri Andrianingsih; Ganjar Samudro; M. Arief Budihardjo; Baskoro Lokahita; Syafrudin Syafrudin; Mochtar Hadiwidodo; Irawan Wisnu Wardhana
Jurnal Teknik Mesin Vol 7, No 1 (2018)
Publisher : Universitas Mercu Buana

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22441/jtm.v7i1.2239

Banyaknya produksi sampah di Semarang menyebabkan timbulan sampah di TPA Jatibarang semakin meningkat. Untuk mengurangi timbulan sampah, perlu adanya energi alternatif. Oleh karena itu, produksi refuse derived fuel (RDF) dapat menjadi salah satu solusi positif dalam penyelesaian masalah ini. Pemanfaatan energi dari limbah dikenal sebagai Waste-to-Energy (WTE). Pemanfaatan limbah menjadi energi sangat berhubungan dengan nilai kalor. Pada kajian ini, sampah combustible dari zona aktif 1 TPA Jatibarang akan dihitung nilai kalor tingginya dengan bom kalorimeter. Sampah diambil pada kedalaman 0-1 m, 1-2 m, dan 2-3 m di bawah permukaan timbulan sampah. Nilai kalor yang dihasilkan sampel tersebut sebesar 6,07 kkal/ton pada kedalaman 0-1 m, 5,56 kkal/ton pada kedalaman 1-2 m dan 5,55 kkal/ton pada kedalaman 2-3 m. Hal ini menunjukkan bahwa semakin tinggi kedalaman maka semakin tinggi pula nilai kalornya, sehingga sampah zona aktif 1 TPA Jatibarang memiliki potensi yang tinggi untuk diolah menjadi RDF.

ANALISA PERBEDAAN LPS (LAST PLANNER SYSTEM) DENGAN SISTEM KONVENSIONAL SERTA PENGARUH CPM DAN BAR CHART PADA LPS Sadhu Adwitya A; M. Agung Wibowo; Syafrudin Syafrudin
Wahana Teknik Sipil: Jurnal Pengembangan Teknik Sipil Vol 25, No 1 (2020): Wahana Teknik Sipil
Publisher : Politeknik Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.32497/wahanats.v25i1.1919

Two generally method / tools which used in project construction management system in Indonesia and the name are CPM (critical part method) or network planning and Bar Chart. The system used general method called conventional management system. Nowadays, was appeared one of a new system which seldom to applied in Indonesia, it is called LPS (last planner system). This research, researcher doing analyzed the differences between LPS and conventional management system. The result which obtained in this research are LPS dominated to accentuates team collaborative in the scheduling planning, resource allocation, control and enhance of work productivity, issue solved, regularly scheduling planning. Conventional management system more rely on the way CPM and Bar Chart working in that system with project manager decision. Planning of the schedule in this system doing by scheduling team. rescheduling in this system is not routine, it’s depend by construction progress. CPM and Bar Chart methods is influence on LPS. The both of methods was appeared in master scheduling, look a head scheduling, weekly work planning, shielding production, workable back log, percent plan completed and reliable promise process

Medical Waste Incineration Ash Waste: Impact On Environmental Health And Its Potential To Be Used For Paving Blocks Rachmawati, Siti; Syafrudin, Syafrudin; Budiyono, Budiyono
Jurnal Kesehatan Masyarakat Vol 19, No 2 (2023)
Publisher : Department of Public Health, Faculty of Sport Science, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/kemas.v19i2.44392

ABSTRACT : It is known that medical waste has increased in recent years due to the Covid-19 pandemic, which was followed by an increase in ash from burning medical waste processing using incinerators. The objective of this study is to determine the impact of using medical waste incineration ashes on health and the environment, as well as the potential for using solidification techniques to make the ash into paving blocks. The ash used was obtained from a medical waste processing facility in Surakarta, Indonesia's Central Java. The test object was created using seven different combinations of ash, sand, and cement with a water-cement ration of 0.5 and cured for 28 days. The optimum compressive strength condition was determined as the basis for the composition of medical waste incineration ash as a mixture of paving block raw materials, which was then tested for the content of heavy metal compounds using the SNI 8808: 2019 method. According to research, the ash from medical waste incineration contains heavy metal compounds such as Pb, Ni, Cu, and Cd and has the potential to be used as a mortar mixture. Six of the seven mortar compositions with the addition of incineration medical waste ash met the compressive strength requirements of SNI 03-0691-1996 for category D paving blocks to be used in parks and other places.

Socioeconomic and Public Health Impacts of Waste Management in Piyungan Landfill, Bantul-Indonesia Astuti, Farida Afriani; Syafrudin, Syafrudin; Susilowati, Indah
Jurnal Kesehatan Masyarakat Vol 19, No 4 (2024)
Publisher : Department of Public Health, Faculty of Sport Science, Universitas Negeri Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.15294/kemas.v19i4.47181

Piyungan Landfill in Bantul, Indonesia, still uses an open dumping system, leaving environmental impacts. This research examined the effects of open dumping on the socioeconomic and health conditions of nearby populations. Surveys and interviews using questionnaires were employed with households as the analysis unit. From four sub-villages (Ngablak, Banyakan III, Sentulrejo, and Baruwan I), 128 respondents were sampled randomly. Statistical quantitative analysis was employed to analyze the research data. Descriptive statistics were selected to describe sample data. Data were then expressed as percentages and presented in pie charts. Results show that for people who salvaged recyclables, the landfill was their primary source of livelihood. More than half (62.5%) earned an average of IDR1,093,095 (approximately USD70) per month as waste pickers. However, open dumping lowered the environment’s aesthetic value due to the unpleasant view and smell, and large populations of animals like rats, flies, cats, and mosquitoes attracted to waste piles. Nearly all respondents (90.6%) expressed their anxiety about these adverse effects, triggering social conflicts. It was claimed that property values and public health were, however, unaffected. Most respondents stated that the landfill did not lower the property values (96.9%) and did not cause health concerns (71.9%).

Analisis Sistem Manajemen Mutu pada Proyek Pembangunan Rumah Tapak Jabatan Menteri di KIPP IKN Sumiati, Sumiati; Syafrudin, Syafrudin; Widayat, Widayat
Jurnal Profesi Insinyur Indonesia Vol 2, No 2 (2024): JPII
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.14710/jpii.2024.24262

Pembangunan Rumah Tapak Jabatan Menteri di KIPP IKN berlokasi di kawasan inti pusat pemerintahan IKN, Kab Penajam Paser Utara, Provinsi Kalimantan Timur, Indonesia, dengan luas keseluruhan 19,7 ha, dengan lingkup pekerjaan perencana perancangan persil 103,104, dan persil 105. Jumlah rumah yang akan dikerjakan adalah sebanyak 36 unit dengan 2 tipe yaitu upslope dan downslope.Penelitian ini bertujuan untuk menganalisis sistem manajemen mutu, mengevaluasi penyebab dan merencanakan solusi perbaikannya. Data primer yang digunakan dalam penelitian ini adalah dengan observasi kondisi Proyek Pembangunan Rumah Tapak Jabatan Menteri di KIPP IKN ini. Sedangkan data sekunder yang dibutuhkan meliputi dokumen RMPK yang sesuai dengan SMKK Permenpu No 10 Tahun 2021, gambar kerja, RKS, serta hasil pengujian material. Dari hasil peninjauan di rumah contoh, didapatkan ada temuan permasalahan mutu terkait finishing kanopi rumah contoh yang terdapat temuan lumernya air dari atap kanopi. Selain temuan di rumah contoh, penulis juga mendapatkan temuan terkait incoming material beton ready mix saat pekerjaan pembetonan. Saat pengecekan incoming material yang onsite didapatkan bahwa hasil slump tidak sesuai, sehingga dikembalikan oleh pihak penyedia jasa. Melalui analisis penerapan perencanaan dan pengendalian mutu pada proyek pembangunan Rumah Tapak Jabatan Menteri ini, ditentukan evaluasi dan rencana solusi perbaikan dengan cara memperbaiki prosedur pelaksanaan slump test, pengecekan job mix formula secara rutin, dan memastikan pihak supplier beton sudah mengecek dan mengkondisikan material yang tidak SSD. Kata kunci: rumah tapak jabatan menteri, sistem manajemen mutu, SMKK, finishing kanopi, slump test tidak sesuai

Co-Authors . Widayat A'yun, Husnul Karimah Qurrata A, Sadhu Adwitya A. Stevie Erga Abdullah, Nabil Izza Achmad Hufad Agung Wardana Agus Hartoko Alfaruqi, Nuri Thobibatus Shofia Alvin, Arya Alam Anastasya, Windy Divaci Andy Riski Pratama Anik Sarminingsih, Anik Arieyanti Dwi Astuti, Arieyanti Dwi Arifmiboy, Arifmiboy Astri Purnama Dewi Astuti, Farida Afriani Badrus Zaman Bagus Sujiwo Bambang Pujianto Bambang Riyanto Baskoro Lokahita Bella Nasila D Budi Prasetyo Samadikun Budianto, Tri Hendrawan Budiharjo, M. Arief Budiyono Budiyono Confera, Akbar Nugroho Darul Ilmi Denok Ambun Suri Dian Eni Sunarni Didik Wahyudi Dinah Husniah Fauzia Rahmiyati Yazid Fauziyah, Fita Firmansyah, Anton Fuadah, Tsani Tsamrotul Ganjar Samudro Ganjar Samudro H. Bunga Natalia Hadiyanto Hadiyanto Harusda, Dadhan Haryono S. Huboyo Haryono Setyo Huboyo Hayat, Nurul Henny Juliani, Henny Hernoni Septiani, Hernoni I Ketut Suada Iin Novitasari Ika Bagus Priyambada Imam Hanafi Indah Susilowati Indriyani Indriyani Inri Natalia Inri Natalia Iqbal Syaichurrozi Irawan Wisnu Wardhana Irwansyah Irwansyah Iswantir M Julian Marfal Karsam Karsam Khalish, Alif Akram Kharisma, Viol Dhea Kismartini Kismartini Larasati, Dyanung Latifa , Nurrahmi Latifa, Maysa Lucy Amena Sembiring M. Agung Wibowo M. Agung Wibowo Mahmud Mahmud Maman Fathurrohman, Maman Matin, Hashfi Hawali Abdul Mochamad Arief Budihardjo Mochtar Hadiwidodo Muhajirin, Muhajirin Muhiddinur Kamal Muktiono Waspodo Mulyati Mulyati NEVIATY PUTRI ZAMANI Nurandani Hardyanti Nurhasanah Nurhasanah Nurmaesyarah, Nurmaesyarah Nurul Awaliah Nurul Renaningtias, Nurul Paranita, Debbie Yuliana Purwanto Purwanto Putri, Soraya Annisa Rafiuddin, Rafiuddin Ramadan, Bimastyaji Surya Ratih Pujiastuti Rizki Tri Andrianingsih Rozita, Putri Rudy Kurniawan S. Suripin Sadhu Adwitya A Sani, Muhammad Thariq Sejati, Anang Wahyu Septiadi, Luhur Setiabudi Bambang Setyorini, Rita Agus Silviana Silviana Siswati, Muji SITI RACHMAWATI Sri Eko Wahyuni Sri Sumiyati Sriyana Sriyana Subhan, Ega Saiful Sudarno Sudarno Sudarwanto, Anang Suherman, Suherman Sulardjaka Sulardjaka Sumiati Sumiati Sutrisno, Sutrisno Suyadi, Andri Utami, Khurnia Tri Vitus Dwi Yunianto Budi Ismadi Wahyuni, Retno Hari Wati, Hessy Rahma Wati, Salmi Wedra Aprison Wicaksono, Vinsensius Priyo Winardi Dwi Nugraha Winardi Dwi Nugraha Yulius Yulius Yuliyanti yuliyanti Yusa Eko Saputro, Yusa Eko Zailani Zailani Zainal Abidin Arief ZAMAN, Badrus Zulhanudin, Al Farick Zulkifli Zulkifli

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