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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

Religion Aerospace Engineering Agriculture, Biological Sciences & Forestry Arts Humanities Astronomy Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Dentistry Earth & Planetary Sciences Economics, Econometrics & Finance Education Electrical & Electronics Engineering Engineering Environmental Science Health Professions Languange, Linguistic, Communication & Media Law, Crime, Criminology & Criminal Justice Library & Information Science Mathematics Mechanical Engineering Nursing Physics Public Health Social Sciences Transportation Veterinary Other

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STUDI POTENSI PEMANFAATAN NILAI EKONOMI SAMPAH ANORGANIK MELALUI KONSEP DAUR ULANG DALAM RANGKA OPTIMALISASI PENGELOLAAN SAMPAH (Studi Kasus : Kota Magelang) Dwi Nugraha, Winardi; Ambun Suri, Denok; Syafrudin, Syafrudin
TEKNIK Volume 28, Nomor 1, Tahun 2007
Publisher : Diponegoro University

Waste composition of Magelang City in the year of 2006 consists of 69, 65% organic waste and inorganicwaste 30, 35%. This composition indicates that Magelang City have potency to lessen its waste by applying3R concept and by optimizing the role of trash collector in managing inorganic waste. The existing wastemanagement condition shows that organic and inorganic wastes are not separated yet from its source. As aresult, inorganic waste (which is still economically valuable and still can be recycled) was brought to TPS.The target of this research is to find the waste amount and potency that can be recycled. These resultcontinued by planning the operational technique with 3R concept in Magelang City Waste Management.The research method in measuring volume and composition of waste is according to SNI 19-3964-1994.The result shows in year 2007, the quantity of inorganic waste that economically valuable beforeoptimalization is 1880,625 kg/day (4 %) and after optimalization is 6245,28 kg/day (13,28 %). While theincome of trash collector increase from Rp. 2.424.871,00 per day to Rp 8.052.679,00 per day. By applyingthis concep,t the waste managed by trash collector will increase495,67% from17,77 m3/day become 105,87m3/day in the year of 2023. Beside, by applying this 3R concept Magelang City can reduce the wasteoperational cost equal to 14, 27%.

ANALISIS RESIKO KONSENTRASI DEBU (TSP) DAN TIMBAL (Pb) DI PINGGIR JALAN TERHADAP KESEHATAN MANUSIA STUDI KASUS KOTA YOGYAKARTA Setyo Huboyo, Haryono; Syafrudin, Syafrudin
TEKNIK Volume 28, Nomor 2, Tahun 2007
Publisher : Diponegoro University

Motor vehicle emission generate numerous harmful pollutants in the street every day, some of them arecarcinogenic such as TSP and lead. Yogyakarta is one of represent city which has high traffic load so that thecontamination effect is pronounced. This research was aimed at analysing the risk from related pollutant forpeople who live or work in the vicinity of main streets. This work consists of four steps i.e hazardidentifications, exposure assessment, toxicity assessment, and risk characterization. High volume samplerwas used to catch ambient TSP, spektrophotometer was used for Pb analysis further. Fifteen main streets hadbeen selected for field sampling. Hazard identifications to TSP and Pb concentration was mirrored toambient air standard that maximal concentration for the TSP is 230 Î¼g/m3 and for Pb is 2 Î¼g/m3. Onexposure assessment the TSP concentration in Wates street, Janti, Godean street, Solo street, PKUMuhammadiyah, and STTL exceed ambient air standard (Kep. Gub. DIY No. 513/ 2002), whereas for Pb, allstreets comply to standard. Toxicity assessment revealed that TSP intake in all place was safe since thecalculated intake were still under maximal intake 0,074 mg/kg.day. The circumstance was also true for Pbthat the intake do not exceed 0,00065 mg/kg.day. Based on risk characterization result, it can be concludedthat level of total risk in all places was less than unity so it implies that in those area was safe for dailyactivities in specified time with respect to pollutants of interest. However the relative high risk was pointedout to the Ahmad Dahlan street and the lowest risk was in the Magelang street. Average total risk inYogjakarta city was 0,034.

ANALISA KINERJA DAN TINGKAT KEPUASAN PELANGGAN PDAM KOTA UNGARAN KABUPATEN SEMARANG Bambang, Setiabudi; Suharyanto, Suharyanto; Syafrudin, Syafrudin
TEKNIK Volume 33, Nomor 2, Tahun 2012
Publisher : Diponegoro University

The need for water supply always increases with population growth and development of the region, demandingPDAM Semarang able to provide a better service to their communities.The issue of high rate of leak, the high discharge capacity untapped and range of services is still very low whichis a major problem for the Semarang District PDAM water supply for the City of Ungaran. Similarly on thequestion of the level of customer satisfaction and service performance should be analyzed so that companies canknow the goals and strategies in improving water services to the community.Customer satisfaction to water supply services, measured in terms of customer perception in the use of watersupply. The analysis showed that customer satisfaction in the category of high levels of satisfaction are stronglyinfluenced by water pressure, adequacy of water use, quality of complaints handling and accuracy of watermeter readings.The results of the performance assessment of water services which refers to two normative rules, namely No.47of 1999 Kepmendagri obtain the final value of 58.16 is included in the category of adequate and appropriatecriteria BPPSPAM obtain the final value of 2.055 is included in the healthy category.From the results of the performance analisia taps and customer satisfaction level analysis shows that there aresome indicators of corporate performance and customer satisfaction needs to be improved and enhanced.

EVALUASI SISTEM PENGELOLAAN LIMBAH PADAT B3 PT. INDOFARMA, TBK BEKASI Syafrudin, Syafrudin
TEKNIK Volume 29, Nomor 3, Tahun 2008
Publisher : Diponegoro University

Besides yielding product, production process also will yield discard product that we called as waste. Thetype of the waste are depended on the raw materials and other process that happened during theproduction process. As a pharmacy industry, PT. Indofarma Tbk also generate waste from their productionprocess which have potency to contaminate the environment because the most material that use for theproduction are chemicals that need to be handled seriously. The waste can be categorize as HazardousWaste and needed furthermore management to control, so it will be secure for the environment. Forpharmacy industry, the hazardous waste is in the form of the chemicals, Waste Water Treatmentâ€™s sludge,residu production process like dust from dust collector, incineratorâ€™s fly ash, and other materials which iscame from hazardous materials.

STUDI PENGARUH AERASI DAN RESIRKULASI LINDI TERHADAP LAJU PROSES DEGRADASI SAMPAH PADA BIOREACTOR LANDFILL Syafrudin, Syafrudin; Pujianto, Bambang; Eko Wahyuni, Sri; Eni Sunarni, Dian; Monalisa, Monalisa
TEKNIK Volume 32, Nomor 1, Tahun 2011
Publisher : Diponegoro University

On the conventional landfill, the waste degradation requires a lot of time to make it through and it produces amethane gasfrom a anaerobic which could be dangerous if there is not an optimal processing. On this research,the writer uses 7 experimental reactors, 6 reactors given aeration treatments and leachate recirculation. Thevariations which have done in the research is leachate recirculation debit, namely (10 and 15) ml/minutes andcontinual lacheateâ€™s flowing system and aeration variation, namely (3, 2, and 1)ml/minutes everyday. Theparameter which is measured is the reduction of waste volume, temperature, PH, BOD and COD for weeklyanalysis. The results of the analysis are that the aeration of 1 ml/minutes with leachate resirculation of 15ml/minutes is the best of aeration condition and it can increase the settlement process and reduction of BOD andCOD concentration in a short time of leachate. This reactor can increase the volume reduction as much as 14,14% in six week and it is bigger than control reactor. The concentration reduction of BOD is from 718, 24 mg/lbecomes 88,44 mg/l and the reduction of COD is from 1285,58 mg/l becomes 893,44 mg/l

PERANCANGAN AWAL INSTALASI AIR BUANGAN PENDINGIN MENGGUNAKAN MULTISTAGEFLASH RECYLE DISTILLATION (STUDI KASUS PT. INDONESIA POWER PELABUHAN TANJUNG EMAS SEMARANG) Hardyanti, Nurandani; Syafrudin, Syafrudin; Inri Natalia, Inri Natalia
TEKNIK Volume 28, Nomor 1, Tahun 2007
Publisher : Diponegoro University

The port of Tanjung Emas Semarang was located at the coast needed more clean water for shipping,industries and the communities. The production process of PLTU Indonesia Power produced waste wateras cooling water that caused thermal pollution. Considering the quality, quantity, and continuity of thatwaste water used as one of alternative source of clean water. It treated using by multistageflash recycleddistillation method. The purpose of this plant to fulfill clean water for shipping and port of Tanjung Emasarea with production capacity was 50 liters per seconds for duration planning about 15 years. The locationof this plant was next to PT. SRIBOGA with area 8000 m2, wherein the intake on the Canal of PLTUIndonesia Power. In order to fulfill the quality of water, this plant used oil separator and antiscalant aspretreatment. Production cost of distillation plant was Rp 13.647 per m3. This cost was too expensive so itrequired to be done crossed subsidy. The price of clean water was Rp 2000 /m3 for public, Rp 5500 per m3for industries and Rp 3000 per m3 for governmental office.

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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