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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
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Identifikasi Aliran Sampah di Kota Semarang Melalui Pengelolaan Sampah Berbasis Masyarakat Ramadan, Bimastyaji Surya; Fauziyah, Fita; Budihardjo, Mochamad Arief; Syafrudin, Syafrudin
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 16, No 3 (2019): November 2019
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (650.451 KB) | DOI: 10.14710/presipitasi.v16i3.117-125

Abstract

Community-based  waste  management  is a form  of  waste  management  recommended  by  the government because  it  is  very  effective  in  creating  a  zero-waste  society.  In  Indonesia,  community-based  waste management can be realized through the development of waste banks at the neighbourhoodlevels. In 2019, the City of Semarang has 48 units of active waste banks. Waste that is managed by the wastebank is plastic, paper and metal. However, there is organic waste which is also managed by several wastebanks. The purpose of this study is to identify and analyze the flow of waste through community-basedwaste management, in this  case of the  waste  bank,  in  the  city  of  Semarang.  The  method  used  is  in-depth  surveys  and  interviews related to the waste bank management system in the city of Semarang. The results showed that the activity of the existing garbagebank was able to reduce waste in the city of Semarang by 0.07% of the total garbage generation  in  the  city  of  Semarang.  This  research  can  be  used  as  a  reference  for  developing  better community-based waste management strategies, especially in Semarang City
PENERAPAN PENGELOLAAN LIMBAH B3 DI PT. TOYOTA MOTOR MANUFACTURING INDONESIA Syafrudin, Syafrudin
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 7, No 2 (2010): Vol 7, No 2 (2010)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (218.112 KB) | DOI: 10.14710/presipitasi.v7i2.62-70

Abstract

Pada saat ini, industri berkembang pesat dalam hal ragam maupun jumlahnya di Indonesia. Setiap industri mempunyai potensi untuk menimbulkan limbah yang dihasilkan dari proses produksi. Limbah merupakan bahan bahan sisa yang dihasilkan dari suatu kegiatan dan proses produksi, baik pada skala rumah tangga, industri, pertambangan, dan sebagainya. Bentuk limbah tersebut dapat berupa gas dan debu,cair atau padat.  Di antara berbagai jenis limbah ini ada yang  bersifat beracun atau berbahaya  dan  dikenal  sebagai  limbah  Bahan  Berbahaya  dan  Beracun  (Limbah  B3).  PT.  Toyota Motor  Manufacturing  Indonesia  adalah  perusahaan  yang  bergerak  di  bidang  industri  pembuatan komponen/perakitan  kendaraan  bermotor  roda  empat  merk  TOYOTA  serta  perlengkapan  mesin pengolah/pengerjaan logam. PT. Toyota Motor Manufacturing Indonesia menghasilkan limbah yang bersifat  berbahaya  dan  beracun  dari  kegiatan  proses  produksi  dan  dapat  berpotensi  menjadi pencemar bagi lingkungan bila tidak dikelola dengan baik. Limbah B3 yang dihasilkan oleh PT. Toyota Motor  Manufacturing  Indonesia  adalah  sludge  IPAL,  kerak  cat/sludge  painting,  phosphat  sludge, thinner bekas, oli bekas, aki bekas, majun bekas, lampu TL bekas, kemasan bekas B3 (kaleng cat, jerigen, kaleng thinner, drum), abu insinerator, dan limbah poliklinik. PT. Toyota Motor Manufacturing Indonesia  melakukan  manajemen  pengelolaan  limbah  B3  dengan  baik  sehingga  tidak  mencemari lingkungan. 
PENGELOLAAN LIMBAH BAHAN BERBAHAYA DAN BERACUN (B3) STUDI KASUSPT. HOLCIM INDONESIA, TBK NAROGONG PLANT Utami, Khurnia Tri; Syafrudin, Syafrudin
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 15, No 2 (2018): September 2018
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (294.903 KB) | DOI: 10.14710/presipitasi.v15i2.127-132

Abstract

PT Holcim Indonesia, Tbk merupakan perusahaan yang bergerak di bidang industri semen. Dalam kegiatan produsksinya, PT Holcim Indonesia, Tbk menghasilkan limbah bahan berbahaya dan beracun (B3), baik limbah padat maupun limbah cair. Pengelolaan limbah bahan berbahaya dan beracun tersebut berpedoman pada Peraturan Pemerintah No 101 tahun 2014 tentang Pengelolaan Limbah Bahan Berbahaya dan Beracun. Pengelolaan limbah padat bahan berbahaya dan beracun (B3) yang dilakukan oleh PT Holcim Indonesia, Tbk meliputi identifikasi dan inventarisasi, pengemasan, pelabelan dan pemberian simbol, penyimpanan, pengangkutan internal maupun kepada pihak ketiga dan pemanfaatan limbah B3. PT Holcim Indonesia Tbk. memanfaatkan sebagian besar limbah B3 yang dihasilkan dan limbah B3 dari pihak ketiga untuk digunakan sebagai substitusi bahan bakar maupun bahan baku di dalam proses produksi. Pemanfaatan yang dilakukan sesuai dengan peraturan dan izin yang berlaku. 
STUDI PENGELOLAAN LIMBAH PABRIK GULA (STUDI KASUS PABRIK GULA PT. KEBON AGUNG DI TRANGKIL PATI) Syafrudin, Syafrudin; Astuti, Arieyanti Dwi
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 2, No 1 (2007): Vol 2, No 1 (2007)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (53.468 KB) | DOI: 10.14710/presipitasi.v2i1.25-27

Abstract

Solid waste from sugar cane which are familiar to call “blotong” and “ketel” dust is potentially to compost. In the composting process, biostarnio activator is added to increase the composting process. The composting process take + 22 days to produce mature compost and the product has been met the SNI 19 7030-2004, which are N 1,37%;  P 2 O 5  1,81%; K 2 O 2,22%; Fe 0,49%; Ca 2,56%; MgO 0,53%; Mn 0,03%; pH 7,1; Zn 80,99 ppm; Cu 44,01 ppm; C organic 16,48%; C/N ratio 12,03 %.
PENGARUH VARIASI KONSENTRASI DAN DEBIT PADA PENGOLAHAN AIR ARTIFISIAL (CAMPURAN GREY WATER DAN BLACK WATER) MENGGUNAKAN REAKTOR UASB Samudro, Ganjar; Syafrudin, Syafrudin; Yazid, Fauzia Rahmiyati
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 9, No 1 (2012): Vol 9, No 1 (2012)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1318.729 KB) | DOI: 10.14710/presipitasi.v9i1.31-40

Abstract

In this study Mixture of domestic grey water and black water were investigated. This Mixture consists of Biological Oxygen Demand (BOD), Chemical Oxygen Demand (COD), Total Suspended Solid (TSS), and  Nitrate  (NO3).  This  research  investigated  the  influence  of  concentration  and  flow  variation parameters  to  treating  the  Mixture  Grey  Water  and  Black  Water.  Effluent  quality  of  decreasing concentration varied by the concentration and flow recorded BOD was about 102-544 mg/l, COD was about 287-1.230 mg/l, TSS was about 280-780 mg/l and for treating  nitrate the result was fair enough than others was about 4-12 mg/l.  According to the flow variation resulted the retention time are 4, 6 and 8 hours. The best effluent quality was happened 878 mg/LCOD, and varied by flow are 0,125. The results  of  research  showed  the  higher  concentration  will  decrease  the  value  of  BOD  and  Nitrate removal, due to the influence of pH.The higher flow will decrease the value of BOD and increase COD, TSS, and Nitrate removal, and  optimum flow condition was 0,125 l/hour.
PEMANFAATAN LUMPUR AKTIF DAN EM4 SEBAGAI AKTIVATOR DALAM PROSES PENGOMPOSAN LIMBAH KULIT BAWANG DENGAN SLUDGE Samudro, Ganjar; Syafrudin, Syafrudin; Sujiwo, Bagus
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 9, No 2 (2012): Vol 9, No 2 (2012)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (921.387 KB) | DOI: 10.14710/presipitasi.v9i2.51-63

Abstract

Pengolahan air limbah PT. Indofood CBP menghasilkan sludge yang belum terolah dengan baik. PT. Indofood membutuhkan suatu teknik pengolahan sludge sebagai wujud komitmennya terhadap lingkungan. Tujuan penelitian ini adalah untuk mengetahui kondisi optimum pengomposan aerobik sludge dan kulit bawang. Kulit bawang yang digunakan adalah, yaitu kulit bawang dari divisi pengupasan bawang PT. Indofood CBP. Pada penelitian ini dilakukan analisis terhadap kandungan C-Organik, N-Total, P-Total, K-Total, C/N rasio, dan kadar air pada kompos tiap lima hari sekali. Hasil penelitian didapatkan C/N rasio aktivator EM4 adalah variasi A1 (2,5 kg sludge + 2,5 kg kulit bawang) sebesar  19,74%, B1 (3,3 kg sludge + 1,7 kg kulit bawang) sebesar 18,61% dan C1 (4,2 kg sludge + 0,8 kg kulit bawang) sebesar 14, 17%. Sedangkan C/N rasio aktivator lumpur aktif adalah variasi A2 (2,5 kg sludge + 2,5 kg kulit bawang) sebesar 19,81%, B2 (3,3 kg sludge + 1,7 kg kulit bawang) sebesar 19,00%, dan C2 (4,2 kg sludge + 0,8 kg kulit bawang) sebesar 14, 76%. Hal ini menunjukkan bahwa semakin banyak penambahan lumpur, semakin baik C/N rasio kompos.
STUDI PEMILIHAN CALON LOKASI TEMPAT PEMBUANGAN AKHIR SAMPAH KABUPATEN PEMALANG Hardyanti, Nurandani; Syafrudin, Syafrudin
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 4, No 1 (2008): Vol 4, No 1 (2008)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (188.87 KB) | DOI: 10.14710/presipitasi.v4i1.37-42

Abstract

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PENYISIHAN NIKEL MENGGUNAKAN MEDIA ZEOLIT (STUDI KASUS LIMBAH INDSUTRI KECIL PELAPISAN LOGAM KECAMATAN JUWANA PATI) Syafrudin, Syafrudin
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 5, No 2 (2008): Vol 5, No 2 (2008)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1284.076 KB) | DOI: 10.14710/presipitasi.v5i2.49-54

Abstract

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Pengaruh Land Subsidence terhadap Genangan Banjir dan Rob di Semarang Timur Pujiastuti, ratih; Suripin, Suripin; Syafrudin, Syafrudin
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 21, Nomor 1, JULI 2015
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (3892.319 KB) | DOI: 10.14710/mkts.v21i1.11225

Abstract

Inundation of flood and rob (flood due to high tides) in Semarang City is increase wtithin area and depth. It be more seroius condition because of land subsisdence that happened in coastal area of Semarang City. This research is foccused on prediction and mapping of inundation flood and rob due to land subsidence effect in East Semarang, especially Tenggang Watershed and Sringin Watershed. On this research, data analysis including analysis of land subsidence, analysis of hydrological data, analysis of flood discharge with HEC-HMS, hydraulics analysis with HEC-RAS and then mapping the results of the flood inundation with Arc GIS. The inundation will be create with overlay the DEM of flood water level and DEM of topographic. According to the results of analysis is known that minimum land subsidence is 0 cm/year that happened in south area of Semarang and more higher ini north area with maximum land subsidence is 5.58 cm/year. On periode   2014-2031, the contribute of land subsidence to increase the inundation of flood and rob is 1.39%/year.
Aplikasi Manajemen Risiko pada Pembangunan Sistem Penyediaan Air Minum (SPAM) Regional Jawa Tengah (Studi Kasus pada Pembangunan Jaringan Transmisi SPAM Regional Bregas) Septiani, Hernoni; Wibowo, M. Agung; Syafrudin, Syafrudin
MEDIA KOMUNIKASI TEKNIK SIPIL Volume 21, Nomor 2, DESEMBER 2015
Publisher : Department of Civil Engineering, Diponegoro University

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (665.07 KB) | DOI: 10.14710/mkts.v21i2.11238

Abstract

The increasing need for drinking water and undistributed raw water source needs solution with SPAM, Central Java Region. One of it is SPAM Bregas Region which the service locations are in Brebes Districts, Tegal City, and Tegal District. In the process of the transmission network development, there come some risks that hamper so that it needs for further research. This research aims to identify risks, analyze the amount of risk probability and give policy recommendations. The responden of study are government agencies as providers the transmission pipelines development projects of Bregas Regional SPAM, also the supervision consultants and contractors as a service providers. The method used is to spread the questionnaire to each stakeholder for structuring the risk of using RBS (Risk Breakdown Structure) and multiplying the value of the impact and frequency to obtain the value of the level of risk for each risk factor. The results showed the risks that happened in transmission network development in Bregas Regional SPAM are different from each stakeholder. Risks from perception of the supervising consultant 21.95% is accepted, 18.29% mitigated, and 59.76% avoided. Risk from owner perseption 32.93% is accepted, 23.17% mitigated, and 43.90% avoided. Rizks from contractor perseption 23.17% is accepted, 29.27 mitigated, and 47.56% avoided. Overall stakeholder’s biggest risk is land acquisition.
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