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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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POTENSI NITRIFIKASI OLEH BAKTERI PADA DAERAH MUARA SUNGAI studi kasus : Muara Sungai Plumbon, Banjir Kanal Barat, Banjir Kanal Timur – Semarang Kartika Hapsari
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 estuary is the area of coexistence between sea water and fresh water so estuary have a fairly high levels of salinity. Most industries such as fish canning industry, leather industry, petrolum industry and a population of about disposing discharge in river watersheed giving rise to pollution, including nitrogen levels are high in the River. High concentrations of N and exceeding the threshold causes eutrophication.Stage N compounds in water in salinity by means of nitrification bacteria that have been tolerant landscaping needs. Between estuary in the River Plumbon, River Banjir Kanal Barat and Banjir Kanal Timur of nitrogen during the process speed allowance nitrification most optimal on the estuary Banjir Kanal Timur, because nitrification bacteria in the mouth of the river has been in the process of nitrification tolerant than both estuary other.
STUDI PENGARUH VARIASI DEBIT TERHADAP PENURUNAN KONSENTRASI BOD,COD, dan TSS LIMBAH CAIR DOMESTIK BLACK WATER MENGGUNAKAN REAKTOR UASB (Studi Kasus: Kelurahan Gabahan, Semarang) Widayanto Kurniawan Eko Yendi Atmaja
Jurnal Teknik Lingkungan Vol 2, No 1 (2013): Jurnal Teknik Lingkungan
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro

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Abstract

Domestic wastewater from toilets is termed as fecal wastewater or "black water" with a high organic content. Domestic wastewater black water in Indonesia is still largely done by processing flows into the septic tank. UASB reactor has the ability to treat wastewater with high organic load and tolerant of shock loads. Therefore we need the existence of a study on the effectiveness of treatment of domestic wastewater using UASB. Characteristics of domestic wastewater from the black water test results in the Gabahan Village, Semarang has value 3000 mg COD / l, BOD 1218 mg / l, TSS 1800 mg / l, temperature of 27.03 º C, and pH 7.13. UASB reactor in this study using a continuous system.
PENGARUH PENAMBAHAN LIMBAH UDANG PADA PUPUK CAIR DARI FERMENTASI URIN SAPI TERHADAP KUALITAS UNSUR HARA MAKRO Renaldi Purba; Endro Sutrisno; Sri Sumiyati
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 husbandry activity processes will result side products,  known as waste such as feces and urine. The characteristic of these waste are renewable and very potential to be used as liquid fertilizer. On this research, urine from cow is used as raw material for liquid fertilizer because of its nutrient element. One of the techniques to make liquid ferltilizer by fermentation. This research have six variations by adding different amount of  shrimp waste in order to know the best effect of macronutrient element for liquid fertilizer. Variation of the addition are: 0 gr; 15 gr; 30 gr; 45 gr; 60 gr; 75 gr and fermentated for 14 days. The best addition of shrimp waste for good liquid fertilizer is 60 gr addition of shrimp waste, which have nutrient element content of macro C-organic, Nitrogen, Phospor, and Kalium with each percentage 6,75%, 1,62%, 0,63%, and 0,73%.
Pengaruh Variasi Konsentrasi dan Debit Pada Pengolahan Air Artificial (Campuran Grey Water dan Black Water) Menggunakan Reaktor UASB Fauzia Rahmiyati Yazid
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 studyMixture 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 about102-544 mg/l, COD was about287-1.230 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 are4, 6and 8hours. The best effluent quality was happened878 mg/LCOD, and varied by flow are 0,125. The results of research showedthe 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 condition ensued ata debit of0,125 l/hour.
PENENTUAN DAYA TAMPUNG BEBAN CEMARAN SENYAWA NITRIT DAN NITRAT MENGGUNAKAN PROGRAM QUAL2E DENGAN SIMULASI FISIK SUNGAI (STUDI KASUS : SUNGAI TUNTANG, JAWA TENGAH) Mohamad Romadlon
Jurnal Teknik Lingkungan Vol 2, No 1 (2013): Jurnal Teknik Lingkungan
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro

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Abstract

Nitrite (NO2-N) contaminant load capacity of Tuntang River at maximum stream is fulfill the quality standard Class I, II, or III by a capacity between 0 – 70,3 kg/day. Whereas Nitrate (NO3-N) contaminant load capacityof Tuntang River is fulfill the quality standard Class I and II by a capacity between 11414,15 – 11664,35 kg/day and fulfill the quality standard Class III and IV by a capacity between 23328,71 – 23578,91 kg/day. From Qual2E simulation by the rivers morphology (Mannings coefficient, side slope, width and slope) found when Manning coefficient is increase so contaminant load capacity of NO2 and NO3 is increase. But rivers side slope coefficient have not a influence significantly to contaminant load capacity of NO2 and NO3. If rivers width coefficient is increase so contaminant load capacity of NO2 is increase but it isn’t happen to contaminant load capacity of NO3 is constant. If rivers slope coefficient is increase so contaminant load capacity of NO2 is decrease but it isn’t happen to contaminant load capacity of NO3 is constant.
PENGARUH LAMA FERMENTASI TERHADAP KADAR BIOETANOL DARI LIMBAH KULIT PISANG KEPOK DAN RAJA Arifani Bestari; Endro Sutrisno; Sri Sumiyati
Jurnal Teknik Lingkungan Vol 2, No 3 (2013): Jurnal Teknik Lingkungan
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro

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Abstract

Banana peel (musa sapientum) is organic waste that have value of carbohydrates that high and nutrition that can help the growth of a microbe. Based on it, then appears an idea to make use of the  bioethanol from the peel as a source of raw materials. Bioethanol is one alternative energy that are spoken currently who is expected to replace energy source of petroleum that has existed that is the fluid a result fermentation of sugar from sources of carbohydrate used the aid microorganisms. In this research process of waste the banana peel become bioethanol is aimed to determine the process of waste the banana peel plantain and kepok, ranging from process of smoothing the hydrolysis of, fermentation until distillation of which are then analyzed levels of each  bioetanol each kind of the banana peel based on the number of yeast and time. In this process of fermentation by the addition of saccharomyces cerevisiae by  number of yeast, as many as 3 5, 7 gram with long  fermentation different namely during 2, 4, 6, 8 days influencing the outcome of the level of bioethanol on the type of skin of plantain and kepok. This result of research produce levels of bioethanol the most high that is on the type of kepok banana peel with yeast fermentation as many as seven gram during the time of 8 days worth 17.05 % while on the peel of plantain with heavy yeast and the same time having bioetanol levels as many as 16.55 %. The longer fermentation, microorganisms more active and the extension of yeast the result of ethanol is increasing contained in a sample of the banana peel with heavy yeast 3, 5 grams, 7 gram levels of ethanol more robust on the day to  8.
STUDI PENGOMPOSAN LUMPUR HASIL PENGOLAHAN LIMBAH CAIR PT INDOFOOD CBP DAN LIMBAH BAWANG MERAH GORENG MENGGUNAKAN AKTIVATOR EM4 DAN LUMPUR AKTIF Dewi Anggraeni
Jurnal Teknik Lingkungan Teknik Lingkungan Volume 1 Nomor 1 Tahun 2012
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro

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Abstract

Sludge from food industry potentially treated with the composting methods because of any organic matter such as carbohydrates, proteins, fat, coarse fiber, water and macro nutrients such as nitrogen and phosphorus. This research had been conducted composting process that sludge mixed with fried onions. Composting process used two activators. They are Effective Microorganisms 4 (EM4) and activator from activated sludge. Compost matured have meet the requirements of SNI 19-7030-2004. The best result at variations on activator em4 with  ratio sludge : fried onion = 9 : 1 with result C-organic 12.84%, N-total 0.84%​​, 0.49% P-total, K-Total 0.27% and the C/N ratio 15.31. In the activator of activated sludge with same variation showe the results C-organic 13.06%, N 0.76%, P 0.53%, K 0.33% and C/N ratio 17.13.
ANALISIS RESIKO CEMARAN Pb AKIBAT ASAP PABRIK TERHADAP KESEHATAN PEKERJA DAN MASYARAKAT SEKITAR ( Studi Kasus : PT. Inti General Yaja Steel, Semarang-Jawa Tengah) Herti Ayu Yusvalina
Jurnal Teknik Lingkungan Vol 2, No 1 (2013): Jurnal Teknik Lingkungan
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro

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Abstract

PT. Inti  General Yaja Steel is one of the industry's largest and oldest steel foundries in Semarang, Central Java. Industrial processes PT. Inti General Yaja Steel contained fuel use (fossil) so there is output in the form of air emissions. Emitted high enough in the production process is one of them is lead (Pb) and if not handled skillfully can pollute the environment and affected the health of workers and surrounding communities. Studies on air contamination risk analysis is required as a result of factory smoke surrounding air quality monitoring efforts and the health of workers and communities around the plant. There are 4 steps in determining the risk analysis i.e hazard identification, exposure assessment, dose-response assessment and risk characteristics. There are 4 locations used for the sampling location. All the calculated Pb concentration is far below the quality standard in accordance Central Java Governor Decree No. 8 In 2001 the Pb = 2 μg/m3. The maximum intake obtained is 0.002904 mg / kg.day and intake of the respondents are still far below the standard. Estimated value of the risk is still below the maximum risk = 1 at 3.1 x10-5. based on the above it can be seen that the area around the PT. General Yaja Steel core is still safe and not harm the health of workers and surrounding communities.
PEMANFAATAN AMPAS BIOETANOL DARI KULIT PISANG (Musa Sapientum) SEBAGAI BRIKET Reny Nurainy; Sri Sumiyati; Endro Sutrisno
Jurnal Teknik Lingkungan Vol 2, No 2 (2013): Jurnal Teknik Lingkungan
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro

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Abstract

ABSTRACTWith the energy crisis in Indonesia in recent years is due to the human need for fuel is increasing, while the supply of oil or natural gas is limited. This causes the cost of fuel energy. In addition to fuel oil and natural gas, timber when done randomly and in large quantities will interfere with the balance of the ecosystem or environmental sustainability. The purpose of this study was to obtain fuel briquettes from waste banana peel pulp bioethanol, as a substitute for fossil fuels. The study was conducted with a variable fixed briquette diameter 1 cm, height 5 cm and a total weight of 22 grams per briquet. While variable is the% change in the composition of the adhesive (25% and 50%) and the type of material that is Ampas bioethanol kepok banana peel and King. Response observed that color, calorific value, long burning fire and the resulting color. The results showed that% moisture content greatly affects the calorific value, long burning time. The calorific value of the greatest and most long ignition time obtained on treatment plantain because it produces a lower water content compared to banana pulp kepok. From the analysis that has been done can be concluded that the briquettes are in accordance with SNI.
STUDI PENAMBAHAN AIR KELAPA PADA PEMBUATAN PUPUK CAIR DARI LIMBAH CAIR IKAN TERHADAP KANDUNGAN HARA MAKRO C, N, P, DAN K Yovina Mulyadi; Sudarno Sudarno; Endro Sutrisno
Jurnal Teknik Lingkungan Vol 2, No 4 (2013): Jurnal Teknik Lingkungan
Publisher : Departemen Teknik Lingkungan Fakultas Teknik Universitas Diponegoro

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Abstract

Liquid fertilizer content from fish wastewater had not fulfill the requirement of Agriculture Minister rules No.70/Permentan/SR.140/10/2011 with C-organic content 15.42%, Total N 1.26%, Phosphate 4.37%, and Potassium 0.36% thus variated coconut water for the enrichment of Total N and Potassium content. Liquid fertilizer made from fish wastewater is made by mixing fish wastewater, rice wash water, molasses, and coconut water (with variation of 0, 100, 200, 300, 400, and 500 ml) into the reactor and anaerobically fermented during 20 days then do the measurement of pH and Temperature every day and content of CNPK(C-Organic, N Total, Phosphate, and Potassium) on day 0, 10th, and 20th. The optimum result that is obtained from the measurement of  liquid fertilizer content from fish wastewater on day 10 with the variation of 500 ml of coconut water with content of C-Organic 17.12%, Total N 3.09%, 0.41% Phosphate, and 0.0066% Potassium.

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