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INDONESIA
Jurnal Teknik Lingkungan
Published by Universitas Diponegoro
ISSN : -     EISSN : -     DOI : -
Core Subject : Social,
Environmental Science
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Articles 99 Documents
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RENCANA INDUK SISTEM PENYEDIAAN AIR MINUM KOTA SALATIGA Saddam Pradika
Jurnal Teknik Lingkungan Vol 2, No 1 (2013): Jurnal Teknik Lingkungan
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro

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Abstract

Salatiga is a city which located between Semarang District consist of 4 districts would need a water supply system to fullfill the water needs of the city. Water Supply System in Salatiga using gravity and pump systems with springs and deep well source. However, for a few years, people need new water sources to fulfill those needs. PDAM serve 56,14 % of Salatiga population. Salatiga has several potential sources of water which could be used as a source of raw water. Potential water source are needed to fullfill the water needs of each district in Salatiga so Salatiga require a Master Plan of Water Supply System.
PENGARUH PENGENCERAN DAN PENGADUKAN LIMBAH DAPUR DAERAH NGESREP TERHADAP PENINGKATAN PRODUKSI BIOGAS DENGAN MENGGUNAKAN EKSTRAK RUMEN SAPI SEBAGAI STARTER Mohammad Rama Fadillah Soeroso; Sudarno Sudarno; Irawan Wisnu Wardhana
Jurnal Teknik Lingkungan Vol 2, No 3 (2013): Jurnal Teknik Lingkungan
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro

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Abstract

The increase of oil prices affects economic activity in the world including Indonesia, it would encourage the government to develop renewable energy including biogas. Kitchen wastes have the potential to be a source of renewable energy, namely biogas. Food waste and kitchen activities in sufficient quantities from the cafeteria collected, and treated such as refining and homogenizing, then enter a stage of the substrate and its extracts as a source of rumen anaerobic bacteria into the batch reactor with the addition of water as a variation. From the results of the study concluded that the addition of water affects the amount of gas produced. It is proven through the reactor which produces biogas most is reactor with 150 ml dilution (A) (pieces shape) which were stirred three times a day, this reactor is capable of producing up to 1394 ml within 24 days. Based on the time of production, the level of water and mixing also affects the length of time in the production of biogas. Biogas production without a stirring process is capable of producing biogas up to 19-20 days, while the stirred reactor were capable of producing biogas up to 25-26 days.
PENGARUH KECEPATAN UPFLOW DAN KONSENTRASI INFLUEN TERHADAP PENYISIHAN BOD5, COD, DAN TSS PADA PENGOLAHAN AIR LIMBAH DOMESTIK (GREY WATER DAN BLACK WATER) MENGGUNAKAN REAKTOR UASB Anif Rizqianti Hariz
Jurnal Teknik Lingkungan Teknik Lingkungan Volume 1 Nomor 1 Tahun 2012
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro

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Abstract

In this study, will be known ability of UASB reactors (Upflow Anaerobic Sludge Blanket) in a laboratory scale in processing the mixture of domestic waste water (grey water and black water) by varying the upflow velocity and influent concentration. Influent concentrations used are of three kinds, namely the concentrations of low, medium and high. The parameters examined were BOD5 (Biological Oxygen Demand), COD (Chemical Oxygen Demand) and TSS (Total Suspended Solid). Maximum values ​​obtained of COD removal efficiency is 69%, whereas the maximum BOD5 removal efficiency is 76%, and the maximum TSS removal efficiency is 72%. The higher the concentration of waste water, the greater the concentration of BOD5, COD, and TSS that can be removed by the microorganisms in the UASB reactor. Overall, the reactor with slow upflow velocity is allowing time for microorganisms to decompose the substrate in the wastewater, so that the removal efficiency obtained is higher. However, the results of treatment using the UASB reactor was not yet meet the quality standard (KepmenLH. No. 112 , 2003 and Perda Jateng No. 10, 2004), thus requiring further processing to be discharged into water bodies.
SIMULASI TATA GUNA LAHAN TERHADAP KUALITAS AIR SUNGAI dengan METODE INDEKS PENCEMARAN ( Studi Kasus : Sungai Tuntang, Jawa Tengah ) Anggun Hera S
Jurnal Teknik Lingkungan Vol 2, No 1 (2013): Jurnal Teknik Lingkungan
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro

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Abstract

Tuntang River is a main river of Tuntang’s watershed which is located in Central Java. Administratively, Tuntang River covers seven districts with a total area of ± 139 km long rivers. Tuntang River’s stream go through various hue environments namely forest, residential, agricultural and moor which potentially reduce the quality of agency ait Tuntang River. The determination of Tuntang River water quality used River Pollution Index method. The water quality monitoring carried out in five river segments. The results were obtained using the pollution index calculation with the scorings as follow: Segment 1 = Class 1: 1.56; Grade II: 1.54; Grade III: 1.54; Grade IV: 0.64. Segment 2 = Class I: 0.9, Class II: 0.88; Grade III: 0.87; Grade IV: 0.64. Segment 3 = Class I: 0.67; Grade II: 0.66; Grade III: 0.65; Grade IV: 0.64. Segment 4 = Class I: 0.67; Grade II: 0.67; Grade III: 0.66; Grade IV: 0.65. Segment 5 = Class I: 0.75; Grade II: 0.68; Grade III: 0.66; Grade IV: 0.66.The water quality is categorized quite well because the water meet the quality standards for rivers class I designation.   The land use in every segment of the Watershed (DAS) Tuntang can affect the water quality. The changes of the land use giving influence for the water quality of Tuntang River, the simulation of addition of the residential land can improve the water quality corresponding the IP value become worse, the simulated reduction in agricultural land can degrade water quality corresponding IP value better. The simulation of addition of the residential land also caused the improvement of the water BOD. From the calculation of water quality by using Pollution Index based on the simulation of addition of the residential land, it was known that the quality of Tuntang River water had a quality status to Meet Quality Standards with Cemar Lightweight IP value between 3.89 to 0.66. To stimulate the reduction of agricultural, it is known that the water of Tuntang River had a quality of Meet Quality Standards with Cemar Lightweight IP value between 1.66 to 0.66.
ANALISA RISIKO KESELAMATAN KERJA DENGAN MENGGUNAKAN METODE HAZARDS IDENTIFICATION, RISK ASSESSMENT AND RISK CONTROL (HIRARC) dI LABORATORIUM BTPLDD PTLR BATAN SERPONG BANTEN Wawan Sulistyo; Winardi Dwi Nugraha; Arie Budianti
Jurnal Teknik Lingkungan Vol 2, No 2 (2013): Jurnal Teknik Lingkungan
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro

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Abstract

ABSTRACTThe laboratory is part of the work which carries the risk with other risks from equipment, chemicals, and worker behavior. Dangers that commonly cause harm should be prevented or controlled. These components will be identified types of risks and dangers of the terms of each of the processes that occur in the analytical work in the laboratory. Information from the identification results will be analyzed to determine the level of every source. The results of the analysis and assessment using risk assessment guidelines K3 BATAN which is chosen as the reference standard in this study. Based on the risk assessment of all research activities in the laboratory BTPLDD in October-November 2012 concluded the level risk of BTPLDD laboratory is A, which means the risk is acceptable and effective control measures assessed.
ASPEK KESELAMATAN OPERASI PENYIMPANAN SEMENTARA BAHAN BAKAR NUKLIR BEKAS Ahmad Indra Permana
Jurnal Teknik Lingkungan Vol 2, No 1 (2013): Jurnal Teknik Lingkungan
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro

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Abstract

AbstractFacility of Instalation Storage for Spent Fuel (ISFSF) designed to be able to place Spent Nuclear Fuel (SNF) as result of 25 years Versatile Reactor – G. A. Siwabbesy added by 1 core unload. In normal operation, there is change of 8 SNF and there is 7 cycles in a year with storage capacity is 1448 SNF elements including used element control rod.  Until the end of 2011, real situation of ISFSF has only 245 SNF and normal operation has 6 times change SNF each cycles and 4 cycles in a year, therefore storage capaccity of ISFSF can reach 60 operational years. After SNF moved from reactor fuel to ISFSF emits heat 42,10 watt each elements and heat total is 6 kW. ISFSF completed with cooler system to hold on water temperation not more than 35 ºC and VAC hold on air temperation not more than 25 ºC. Heat transfer in ISFSF shows the increasing 0,057 ºC of water temperature each day in non operational cooler system and VAC operates into 67 ºC abnormal temperature limit for 560 days. While in non opeartional cooler system condition and VAC, there is increasing 0,25 ºC each day for water temperature with the achievement limitation 128 days and the air temperature becomes 35 ºC each day in 2 hours 11 minutes. Value of radiation exposure in ISFSF between 0,14 – 0,77 μSv each hour is safe for workers and the environment. While surface contamination value of alpha from 0.00 to 0.00 Bq/cm2, beta from 0.00 to 0.02 Bq/cm2 and air contamination alpha values from 0.00 to 0.00 Bq/cm2, beta from 0,00 to 0.23 Bq/cm2, included into the low contamination areas and is still below the level of contamination.
STUDI KEMAMPUAN VERTICAL SUBSURFACE FLOW CONSTRUCTED WETLANDS DALAM MENYISIHKAN COD, NITRIT, DAN NITRAT PADA AIR LINDI (STUDI KASUS: TPA NGRONGGO, SALATIGA) Ismaryanto Gunawan; Wiharyanto Oktiawan; Mochtar Hadiwidodo
Jurnal Teknik Lingkungan Vol 2, No 2 (2013): Jurnal Teknik Lingkungan
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro

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Abstract

ABSTRACTLeachate is one of resulting negative impact from landfilling in Indonesia. In common  leachate   containing an organic and inorganic matter with high concentration. Therefore, treatment of the leachate is essential  before  it  could  be  discharged  directly  into  the receiving water bodies. One of technology to treat landfill leachate which is by use of biological treatment. But this processing apparently is still result organic and inorganic content one high enough. Therefore, necessary continuing processing alternative which is by use of system Constructed Wetlands.  This research intent to know decrease of concentration COD, nitrit and nitrate, and removal efficiency on system Vertical Subsurface Flow Constructed Wetlands  by use of plant Scirpus grossus.  Besides that, the impact of variation amount plants and residence time would  be analized. The laboratory research was conducted with use 4 reactors. Reactor A with 4 plants, reactor B with 6 plants, reactor C with 8 plants, and rector C without plant. Four of the reactors operated at a flow rate of 10,5 ml / minutes for residence time 3 days, 5,3 ml / minutes for residence time 6 days, and 3,5 ml / minutes for residence time 9 days. System Vertical Subsurface Flow Constructed Wetlands  by use of plant Scirpus grossus  (lingi) can removal concentration of COD, nitrit, and nitrate. The highest removal efficiency for COD, nitrit and nitrat were 63,4%, 57,6%, and 59,0% respectively. All of them was reached by reactor C with residence time 9 days. Besides that, decrease concentrations COD, nitrit and nitrate on system Vertical Subsurface Flow Constructed Wetlands  regarded by amount plants and residence time.
STUDI PENURUNAN BESI (Fe) DAN MANGAN (Mn) DALAM AIR TANAH DENGAN MENGGUNAKAN CLAY FILTER Khairul Amri; Ganjar Samudro; Irawan Wisnu Wardhana
Jurnal Teknik Lingkungan Vol 2, No 4 (2013): Jurnal Teknik Lingkungan
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro

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Abstract

The use of groundwater as a source of fresh water to the people would become a problem when it contains of Fe and Mn. This happens because in the ground water there is no directly contact with the air outside and the weathering of rocks, so that Fe and Mn in the ground water is still soluble. Meanwhile the amount of Fe and Mn in the ground is never the same in every location. This case could be some impacts to people’s kidney health. In this study, content of Fe and Mn in the ground water will be reduced by using Clay filter media. This study uses 3 wells water samples character with different level of Fe and Mn in sample A is 0.001 mg / l Fe, 0.16 mg / l Mn, sample is B 0.019 mg / l Fe, 0.05 mg / l Mn, and sample C is 3,242 mg / l Fe, 0.27 mg / l Mn. The height level of water influence to the Clay filter becomes the consideration in this study, they are 50 cm, 100 cm and 150 cm. Clay Filter is operated for 12 hours continuously with taking the reuslt of filtration sampling per 2 hours. Based on the research, this study finds the operating time to decrease the concentration of Fe and Mn with Clay Filter optimally from the three height levels in all kinds of different water samples and its categorization has reached 100% at the fourth hours.
POTENSI NITRIFIKASI OLEH BAKTERI YANG TERDAPAT DI LAUT ALIRAN KALI PLUMBON, LAUT ALIRAN KALI BANJIR KANAL BARAT DAN LAUT ALIRAN KALI BANJIR KANAL TIMUR Nurlita Harsanti
Jurnal Teknik Lingkungan Teknik Lingkungan Volume 1 Nomor 1 Tahun 2012
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro

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Abstract

The difference of Nitrogen levels  in flowKali Plumbon sea,  West Banjir Kanal and East Banjir Kanal due to the difference of utilization area. Nitrogen can be degradated by nitrifying bacteria that has been able to adapt in high salinity water. In addition to minimizing nitrogen in the sea, the bacteria can be applied to the industrial wastes water that containing nitrogen with high salinity. The water samples from the three locations were put into the reactor and the ammonium was added as much as 25 mg-N / L, and then the nitrification process have to observed for 29 days. Nitrifying bacteria obtained from marine estuarine flow West Banjir Kanal  is the most optimal bacteria than the bacteria obtained Plumbon Kali and East Banjir Kanal sea,it’s because the bacteria obtained West Flood Canal was able to adapt to the conditions of high salinity, so that the bacteria can be able to degrade ammonium to nitrite and then to nitrate faster than the two other locations.
PERENCANAAN TEKNIS SISTEM PENYALURAN DAN PENGOLAHAN AIR BUANGAN DOMESTIK (Studi Kasus : Kelurahan Bojongsalaman Kecamatan Semarang Barat Kota Semarang) Setya Widiana
Jurnal Teknik Lingkungan Vol 2, No 1 (2013): Jurnal Teknik Lingkungan
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro

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Abstract

Bojongsalaman urban village located on the sewerage system planning whit mid-term or urgent program. This is because there are many puddles of water on the area that can interfere with actifities of the community. Therefore we need a sawerage system that the domestic sewerage system carried by pipeline form the tank to the bulding saptic processing (small bore sewer). For domestic wastewater treatment used sump wells equipped with pumps, initial sedimentation pond, stabilization pond, and collector pond . it is expected that delivery system and treatment of domestic waste water in the Bojongsalaman can reduce sanitation problems and the region can realize a healthy, comfortable and liveable.

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