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All Journal Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Prosiding Seminar Nasional Sains Dan Teknologi Fakultas Teknik Jurnal Pasopati : Pengabdian Masyarakat dan Inovasi Pengembangan Teknologi
Winardi Dwi Nugraha
Jurusan Teknik Lingkungan, Fakultas Teknik, Universitas Diponegoro Jl. Prof. H. Soedarto, S.H. Tembalang - Semarang 50275
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Chemical Engineering, Chemistry & Bioengineering Civil Engineering, Building, Construction & Architecture Computer Science & IT Earth & Planetary Sciences Electrical & Electronics Engineering Engineering Environmental Science Industrial & Manufacturing Engineering

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Journal : Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan

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STUDI KEHILANGAN AIR AKIBAT KEBOCORAN PIPA PADA JALUR DISTRIBUSI PDAM KOTA MAGELANG (STUDI KASUS: PERUMAHAN ARMADA ESTATE DAN DEPKES, KRAMAT UTARA KECAMATAN MAGELANG UTARA ) Nugraha, Winardi Dwi; K, Dinda Rita
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 (189.786 KB) | DOI: 10.14710/presipitasi.v7i2.71-76

Abstract

Up to the present time, there’re lot of Perusahaan Daerah Air Minum (PDAM) that couldn’t be able toserve their customers in adequate quantity for 24 hours in one day. One of the factor that causing thisproblem are the high lost of water in distribution system that including physic lost and non physic lost.The physic lost is caused due to the pipe leakage in distribution system, so that the quantity of waterthat their use isn’t appropriate to the money that they’re paid. In this research was already been donea study about water losses is caused due to the pipe leakage in Armada Estate and Depkes housingKramat Utara Magelang Utara . On the strength of the first analysis that is done ( WBZ ), water lossesin both of the housing are relative big enough. In north armada estate housing, the water lossesachieves 75,21% and south armada estate housing achieves 43,97%. Whereas in department ofhealth housing, the water losses is lowest than north armada estate and south armada estate. Thewater losses in department of health housing achieves 25,33%.
IDENTIFIKASI DAYA TAMPUNG BEBAN CEMARAN BOD SUNGAI DENGAN MODEL QUAL2E (STUDI KASUS SUNGAI GUNG, TEGAL – JAWA TENGAH) Nugraha, Winardi Dwi; Cahyorini, Lintang
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 3, No 2 (2007): Vol 3, No 2 (2007)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (199.461 KB) | DOI: 10.14710/presipitasi.v3i2.93-101

Abstract

Gung  River  is  a  one  of  the  river  in  Central  Java  which  pass  trough  Tegal  Region  with total length about 48 km. The important thing in environmental problems that faced by Gung River such as increasing the load of water pollution.  BOD is one of the water pollution indicator in the streams. To make easier in knowing the the amount of Total Maximum Dailly Load (TMDL)in Gung River , it  is identified TMDL  of BOD uses modeling principal with Qual2E Modelling. And than  it  is  compared  with    the standar  streams  due  to  PP  No.  82/2001  about  Water  Quality Management and  Water Pollution Control. The result of simulation due to TMDL uses minimum flow rate is compared with standard stream ini PP 82 / 2001. It indicate that the quality could not meet with the standard stream related with the class 1 and class 2. In Reach 1 ( km 1 – 3  ) could meet with standar stream of class 3 with TMDL 1,43 – 9,98 kg/day. All the stream along the river could meet with standar stream ini class 4 with TMDL of BOD is 7,13 – 865,34 kg / day. The  result  of  simulation  due  to  TMDL  uses  maximum    flow  rate  is compared  with  standard stream  ini  PP  82  /  2001.  It  indicate  that  the  quality  could  not  meet with the  standard  stream related with the  class 1 and class 2. In Reach 1 ( km 1 – 3  ) could meet with standar stream of class  3  with  TMDL  72.06  –  3134,51  kg/day.  All  the  stream  along  the  river could  meet  with standar stream ini class 4 with TMDL of BOD is 7277,82 – 10.340,27 kg / day.
ANALISIS PENGARUH HIDROLIKA SUNGAI TERHADAP TRANSPORT BOD DAN DO DENGAN MENGGUNAKAN SOFTWARE QUAL2E (STUDI KASUS DI SUNGAI KALIGARANG, SEMARANG ) Nugraha, Winardi 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 (89.171 KB) | DOI: 10.14710/presipitasi.v2i1.66-70

Abstract

People and industrial activity along Kaligarang River increase day by day, cause load of river increase too. River has many function to support human life, so monitoring of river is needed Monitoring  of  river  water quality  in  some  places  need  many  expenses  and  can  not  give information  abaout  water  quality comprehensively.  That  is  why,  it’s  needed  a  water  quality modeling for river. In this case, it’s used Qual2E one of the water quality modeling software. To use the software related to the river characteristic, it’s still needed to justify some of coefficients   and  get  validation  related  to  reaction  pattern  among the  constituent,  hydraulic  condition,  and hidrology aspects. The research is proposed to see the process of calibration of model related to the justification of coefficient.And so, to analyze the influence of hydraulic aspects of river to the BOD and DO pattern. It’s needed the secondary data, i.e. water quality sampling, climatlogy, hydrology (discarge of river), river hydraulic aspects, map, point source.The calibration is done related to the data and coefficient of the model to get the suitable model used Kaligarang River. This  calibrated  model  is  validated  by  the  secondary  data,  i.e.  water  quality sampling  from Bappedal Province of Central Java. And the get simulation with the various of hydraulic aspects, i.e. “n” number of Manning, cross section, and the influence of Simongan dam. The conclusions of the research say that there are influences and relationships of hydraulic aspects to the BOD and DO pattern.
IDENTIFIKASI KELAS AIR DAN PENENTUAN DAYA TAMPUNG BEBAN CEMARAN BOD SUNGAI DENGAN MODEL QUAL2E (STUDI KASUS SUNGAI SERAYU, JAWA TENGAH) Nugraha, Winardi Dwi
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 (2165.775 KB) | DOI: 10.14710/presipitasi.v5i2.31-41

Abstract

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EVALUASI DAN OPTIMALISASI INSTALASI PENGOLAHAN LUMPUR TINJA KABUPATEN KARANGANYAR Oktiawan, Wiharyanto; Nugraha, Winardi Dwi
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 (1845.16 KB) | DOI: 10.14710/presipitasi.v5i2.68-75

Abstract

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ANALISIS PENENTUAN MUTU AIR BEBERAPA SUNGAI DI JAWA TENGAH DENGAN METODE STORET DAN INDEKS PENCEMARAN Huboyo, Haryono Setiyo; Nugraha, Winardi Dwi; Indah, Rahmah
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 6, No 2 (2009): Vol 6, No 2 (2009)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (273.231 KB) | DOI: 10.14710/presipitasi.v6i2.1-6

Abstract

There  are  some  river  basin  in  Central  Java,  such  as  Gung  River  Basin, Serayu  River  Basin  and Garang River Basin. Many sector that are dependable on the river resources, while on the hand the quality of the river is decreasing because of the waste water pollutant produced by many human or industrial activities. Therefore, proposal study of water class determination can be done by 2 methods according  to  Environmental  Ministry  Decision  No.  115  year  2003 about  Water  Quality  Status Determination Handbook, which are STORET and Pollution Index (PI). Using those two methods will be determined the real water class through comparison between water quality parameter with defined standard according to PP No. 82 year 2001. The usage of these 2 methods often resulting in different output, because of the difference of equal weight from each parameter and the existence constanta of P at Pollution Index (PI) which not clear relevancy.
STUDI PENERAPAN PRODUKSI BERSIH (STUDI KASUS PADA PERUSAHAAN PULP AND PAPER SERANG) Nugraha, Winardi Dwi; Susanti, Ina
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 1, No 1 (2006): Vol 1, No 1 (2006)
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (64.385 KB) | DOI: 10.14710/presipitasi.v1i1.43-48

Abstract

Cleaner produktion is minimization of waste from source. That is can do with some way of likes reuse, reclyle,  recovery  or  house  keeping.  PT.  Indah  Kiat  Pulp  and  Paper  that  location  in Kragilan Village,  Serang  Banten  is  paper  mill  that  in  their  production  aplicated  cleaneer production concept. Action  that  PT.  Indah  Kiat  Pulp  and  Paper  does  in  aplicated  cleaneer production  concept  is recovery  fiber  loss  from  waste  water,  reuse  product  fail  and  house keeping.
Analisis Pengaruh Penambahan Campuran Enzim Amilase dan Selulase Terhadap Produksi Biogas Dari Limbah Sekam Padi Dengan Metode Solid State Anaerobic Digestion (SS-AD) Larasati, Dyanung; Hardyanti, Nurandani; Sumiyati, Sri; Nugraha, Winardi Dwi; Syafrudin, Syafrudin
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 17, No 3 (2020): November 2020
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1291.922 KB) | DOI: 10.14710/presipitasi.v17i3.242-252

Abstract

This research intend to analyze effect of concentrated amylase enzyme and cellulose enzyme, production rate and quality of biogas produced from rice husk waste. The rice husk was given chemical pretreatment by soaking it into NaOH 6 % for 24 hours. Then washed using water so that the pH became normal then dried under the sun before put it inside the reactor with the other enzyme, rumen and urea. The reactor that used has volume of 200ml and has total of 18 reactor with each variable has 2 reactor. Variance of concentrated enzyme that used are 9%, 12%, 15% and 18%. Biogas measurement done every 2 days for 60 days. Result from this research show that addition mixture of amylase enzyme and cellulose enzyme increase yield of biogas that produced. Because yield that produce from reactor with addition of 9%, 12%, 15%, 18% enzyme consecutively are 604 ml, 935 ml, 1041,5 ml and 2922,5 ml. whereas the reactor that not given enzyme only has biogas yield of 115 ml. the highest production rate occur on reactor that were given 18% of enzyme mixture with the production constant rate of 5,39 ml/(grTS day), maximum biogas production amount of 68,53 ml/grTS and the minimum time for biogas to formed is 0,92 days
The Use of Qual2KW to Analyze the Concentration of pH, Nitrate, Phosphate, and Fecal Coliform on Water Quality: A Case Study of the Klampok River, Semarang Regency Winardi Dwi Nugraha; Sudharto Prawata Hadi; Setia Budi Sasongko; Adranandini Noor Anisa; Mochamad Arief Budihardjo
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 19, No 2 (2022): July 2022
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1211.525 KB) | DOI: 10.14710/presipitasi.v19i2.208-221

Abstract

Usually, the main source of water is a river, which makes it essential to ensure that the water from that source is not polluted and in accordance with the water quality standards. Water quality can deteriorate as a result of domestic and industrial waste. This quality is measured based on several parameters, such as the concentration of pH, nitrate, phosphate, and fecal coliform in the water. QUAL2KW can be used to analyze river water quality in order to solve several water quality-related problems. The main river water source in Semarang Regency is the Klampok River, whose water is used to support agriculture, livestock, and other activities. This study aims to determine the concentration of the above-mentioned parameters in the samples from the Klampok River using QUAL2KW. The water samples are obtained from different six points on the Klampok River, and the chi-square test is used for validation. From the laboratory test results for the river-quality parameters, after being simulated using QUAL2KW and validated using the chi-square method, it can be concluded that the quality of the Klampok River belongs to class II. These results can be used as a reference by the Semarang Regency government in managing river water quality.
Optimization of Waste Management at the Purwosari Material Recovery Facility (MRF) Mijen District, Semarang City Anik Sarminingsih; Winardi Dwi Nugraha; Alya Karmilia
Jurnal Presipitasi : Media Komunikasi dan Pengembangan Teknik Lingkungan Vol 18, No 2 (2021): July 2021
Publisher : Universitas Diponegoro

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (579.082 KB) | DOI: 10.14710/presipitasi.v18i2.231-240

Abstract

Semarang City is working on constructing a Material Recovery Facility (MRF) in various urban villages to reduce the waste that enters the Jatibarang Landfill. However, the construction of MRF is not optimal. MRF Purwosari still functions as a container without waste processing. By projecting waste generation for the next ten years, the results of optimization planning are processing waste into RDF, redesigning MRF covering an area of 1,571 m2 with an investment cost of IDR 1,602,837,997 and an operational cost of IDR 307,741/ton/day. The NPV value was Rp.4,836,965, EIRR 12%, and BCR value of 1.81.
Co-Authors Adranandini Noor Anisa Alma, Georgia Alya Karmilia Anang Wahyu Sejati Anik Sarminingsih, Anik Bagaskoro Prasetyo Putro Bimastyaji Surya Ramadan Dinda Rita K, Dinda Rita Ganjar Samudro Haryono Setiyo Huboyo Henny Juliani Ina Susanti, Ina Larasati, Dyanung Lintang Cahyorini, Lintang Mochamad Arief Budihardjo Mochamad Arief Budihardjo Nurandani Hardyanti Rahmah Indah, Rahmah Ramadan, Bimastyaji Surya Rantidaista Ayunin Walidaini Setia Budi Sasongko Sri Sumiyati Sudharto Prawata Hadi Syafrudin Syafrudin Syafrudin Syafrudin Titik Istirokhatun Wiharyanto Oktiawan