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JURNAL TEKNOLOGI LINGKUNGAN
Published by Badan Pengkajian dan Penerapan Teknologi
ISSN : 1411318X     EISSN : 25486101     DOI : -
Core Subject : Social,
Environmental Science
Jurnal Teknologi Lingkungan (JTL) is a journal aims to be a peer-reviewed platform and an authoritative source of information. JTL is published twice annually and provide scientific publication for researchers, engineers, practitioners, academicians, and observers in the field related to science and environmental technology. We publish original research papers, review articles and case studies focused on Environmental Sciences, Environmental Technology as well as other related topics to Environment including sanitation, environmental biology, waste water treatment, solid waste treatment, environmental design and management, environmental impact assessment, environmental pollution control and environmental conservation.
Arjuna Subject : -
Articles 1,211 Documents
 56   57   58   59   60 
LAJU PENYERAPAN CO2 PADA KANTONG SEMAR (Nepenthes gymnamphora Nees) DI TAMAN NASIONAL GUNUNG HALIMUN-SALAK, JAWA BARAT Mansur, Muhammad
Jurnal Teknologi Lingkungan Vol. 13 No. 1 (2012)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (412.28 KB) | DOI: 10.29122/jtl.v13i1.1405

Abstract

Penelitian laju penyerapan CO2 pada kantong semar (Nepenthes gymnanphora Nees) dilakukan di Taman Nasional Gunung Halimun-Salak, Jawa Barat, pada bulan Juni 2011. Sebanyak 15 individu N. gymnamphora dipilih sebagai sampel pengukuran, setiap individu diukur daun muda dan daun tua. Laju penyerapan CO2 dan parameter fisiologi lainnya diukur dengan alat portable LCi ADC Bioscientific Ltd. Photosynthesis system, kandungan khlorofil daun dengan alat Chlorophyll meter tipe SPAD-502 merk Minolta, Intensitas cahaya dengan alat Lux meter, suhu dan kelembaban udara dengan alat hygrometer digital, pH dan kelembaban tanah dengan menggunakan soil tester. Hasil dapat dilaporkan bahwa laju penyerapan CO2 pada N. gymnamphora terendah 2,44 μmol/m2/s dan tertinggi 29,12 μmol/m2/s dengan rata-rata sebesar 11,07 μmol/m2/s pada radiasi cahaya di permukaan daun (Qleaf) rata-rata sebesar1074 μmol/m2/s. Dari hasil pengukuran harian diketahui bahwa laju penyerapan CO2 dari N. gymnamphora optimum terjadi pada jam 10:00 pagi dan terendah pada jam 14:00 siang. kata kunci: Laju penyerapan CO2, Nepenthes gymnamphora, Taman Nasional Gunung Halimun-Salak AbstractStudy of carbon dioxide (CO2) in the pitcher plant (Nepenthes gymnamphora Nees.) was conducted in the Halimun-Salak Mountain National Park, Resort Cidahu, West Java, on June 2011. Fifteen individuals N. gymnamphora selected as the sample measurements, each individual measured young leaves and old leaves. The rate of CO2 sequestration and other physiological parameters measured with a portable LCi ADC Bioscientific Ltd.,Photosynthesis System, leaf chlorophyll content with a Chlorophyll meter SPAD-502 type (Minolta), the light intensity with Digital Light Meter Der EE DE-3351, air temperature and humidity with a Digital Thermohygrometer AS ONE TH-321, soil pH and moisture with a Soil Tester. Results that, the CO2 sequestration rate of N. gymnamphora thelowest is 2.44 μmol/m2/s and highest is 29.12 μmol/m2/s with average 11.07 μmol/ m2/s at light radiation on the leaf surface (Qleaf) average 1074 μmol/m2/s. The daily of photosynthesis is known that the rate of photosynthesis of N. gymnamphora, optimum occurred at 10:00 am and lowest at 14:00 noon. key words: Photosynthesis rate, Nepenthes gymnamphora, Halimun-Salak Mountain National Park.
KEBIJAKAN PENGELOLAAN AIR UNTUK MEWUJUDKAN KETAHANAN PANGAN Maryadi, Maryadi
Jurnal Teknologi Lingkungan Vol. 8 No. 1 (2007): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (103.651 KB) | DOI: 10.29122/jtl.v8i1.408

Abstract

Up until now, some countries still facing food shortage. One of thereasons is waters carcity. As we know, it is estimated that 70 percentof the water consumed worldwide, including that diverted from riversand pumped from underground, is used for irrigation, while some 20percent is used by industry and 10 percent for residential purposes. Inthe increasingly intense competition for water among these three sectors,the economics of water do not favor agriculture. In China, 1,000 tons ofwater can be used to produce 1 ton of wheat, worth perhaps $200, or toexpand industrial output by $14,000—70 times as much. In a countrythat is desperately seeking economic growth and the jobs it generates,the gain in diverting water from agriculture to industry is obvious.
Karakterisasi Ekstrak Tapioka dan Tapioka Ionik sebagai Biokoagulan dalam Proses Pengolahan Air Prihatinningtyas, Eka; Effendi, Agus Jatnika
Jurnal Teknologi Lingkungan Vol. 19 No. 2 (2018)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (258.274 KB) | DOI: 10.29122/jtl.v19i2.2041

Abstract

ABSTRACTThe ability of tapioca to act as natural coagulants (biocoagulants) was tested using artificial water. As turbidity was added as kaolin. This research aimed to determine the compounds and or groups that act as natural coagulant and to describe the mechanism of flocculation: extraction which yields tapioca extract and ion exchange which yields ionic tapioca. Coagulation process was performed at three different initial turbidities, i.e. 50 NTU (low turbidities), 150 NTU (middle turbidities) and 300 NTU (high initial turbidites). At the same condition (coagulant dose 20 ppmv, pH 5), ionic tapioca yield better turbidity removal compared tapioca extract i.e 11.2% at low initial turbidites; 2.4% at middle initial turbidities and 12.8% at high initial turbidities. FTIR analysis  showed that tapioca extract and ionic tapioca contained of carboxyl, hydroxyl and amides groups which  can act as active components on coagulation process. The presence of those groups caused positive and negative charges (amphoter). Coagulation process ran efficiently at pH 5 because the isoelectric point is obtained at that condition.Keyword : bio coagulants, coagulation,  coagulant agents, ionic tapioca, tapioca extract,ABSTRAK Kemampuan tepung tapioka sebagai koagulan alami (biokoagulan) telah diuji dengan menggunakan limbah artifisial dari kaolin. Penelitian ini bertujuan untuk menentukan senyawa atau gugus yang berperan sebagai biokoagulan dan menjelaskan mekanisme flokulasi yang terjadi. Perlakuan awal tapioca sebelum digunakan sebagai koagulan adalah ekstraksi yang menghasilkan ekstrak tapioka  dan pertukaran ion  yang menghasilkan tapioka ionik. Proses koagulasi dilakukan pada 3 macam kekeruhan awal yaitu 50 NTU (kekeruhan rendah), 150 NTU (kekeruhan sedang) dan 300 NTU (kekeruhan tinggi). Pada kondisi operasi yang sama (dosis 20 ppmv dan pH 5), tapioka ionik memberikan efisiensi penurunan kekeruhan yang lebih tinggi, yaitu sebesar 11,0% pada kekeruhan awal 50 NTU; 2,4% pada kekeruhan awal 150 NTU dan 12,8% pada kekeruhan awal 300 NTU. Hasil analisa FTIR menunjukkan bahwa ekstrak tapioka dan tapioka ionik mempunyai gugus karboksil (-OH), gugus karboksil (-COOH) dan gugus amida (-CONH2). Keberadaan ketiga gugus tersebut menyebabkan biokoagulan ini memiliki muatan positif dan negatif sekaligus (amfoter). Proses koagulasi berjalan dengan efisien pada pH 5 karena titik isoelektrik diperoleh pada pH tersebut. Kata kunci : biokoagulan, koagulasi, agen koagulan, ekstrak tapioka, tapioka ionik
PENGARUH UKURAN SEL TERHADAP HASIL PREDIKSI MODEL AGNPS DALAM EVALUASI PENGENDALIAN KUALITAS PERAIRAN DARI SUMBER PENCEMAR PERTANIAN Nugroho, Sutopo Purwo
Jurnal Teknologi Lingkungan Vol. 1 No. 3 (2000): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (347.188 KB) | DOI: 10.29122/jtl.v1i3.184

Abstract

Water quality monitoring effort increased with concern about protection ofthe water quality from waterbody. AGNPS model, which was developed toobjectively evaluate alternative land management strategies on non point source pollution from agricultural watersheds, offers a method of predicting the quality of water from the watershed. The model has the ability to output water quality characteristics at intermediate points throughout the watershed network. The size cell was very influence the result of output model. More large of the size cell so the sediment and nutrient yield output was large too. Scale of map for indentify the input model was influnce the result of output model.
PENGEMBANGAN PERTANIAN BUDIDAYA LORONG (ALLEY CROPPING) UNTUK KONSERVASI LAHAN KRITIS DI HULU DAERAH ALIRAN SUNGAI (DAS) CIMANUK, JAWA BARAT Mulyono, Daru
Jurnal Teknologi Lingkungan Vol. 11 No. 2 (2010)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (335.665 KB) | DOI: 10.29122/jtl.v11i2.1213

Abstract

The role and function of Cimanuk Watershed tend to declining, where total of critical area reach to a high of 131,384 ha from the total of 358,400 ha or about 36.6 %. In wet season debit of Cimanuk River reach 1,004 m3/second and in dry season reavh 4m3/second.Therefore the Debit Ratio of Cimanuk River reach to a high of 251, it is indicate that Cimanuk Watershed become very critical condition and need appropriate management especially in the upper watershed. One altervative of the watershed management is application of Alley Cropping system. The biomass from prunning of hedgerows Flemengia congesta have significant effect to land fertility through improvement of nutrients availability. Furthermore, the successful application of Alley Cropping system willlead to conserve land and water where it will support flood control, agricultural irrigation,fisheries development, electric generation, industrial development, etc.Keywords: agricultural, alley cropping, land conservation, watershed
PENGOLAHAN LINDI (LEACHATE) DARI TPA DENGAN SISTEM KOAGULASI - BIOFILTER ANAEROBIC Susanto, Joko Prayitno
Jurnal Teknologi Lingkungan Vol. 5 No. 3 (2004): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (180.715 KB) | DOI: 10.29122/jtl.v5i3.312

Abstract

Leachate is the pollutant which contains various kinds of both organic such as some harmful photogenic bacteria’s and parasitic microbes like Sarcoptes sp and inorganic compounds such as ammonia. The leachate can be caused prurity to human skin. Base on data from Piyungan Community Health Centre, Microbes caused the incidence of dermatitis take number 4 from 10-disease rank within 75%. Piyungan Disposal Site has a possiblity to pollute to Opak River. the leachate need to be processed to decrease the MPN, COD, BOD, TSS and Ammonia parameters before it will be polluted of Opak River. The research had been done to process the leachate to decrease the MPN, COD, BOD, TSS and Ammonia parameters with use coagulation - biofilter anaerobic system. Equipment used was consisted of leachate equalisation (catcher) tank; alum and lime solution container; leachate coagulation tank and biofilter anaerobic tank. The research show that there were influence of leachate processing with coagulation and anaerobic biofilter toward the decreasing of MPN, COD, BOD, TSSand Ammonia parameters with 1, 2, and 3 hours detention time.
Kajian Terbentuknya Scaling pada Komponen Turbin Uap Pembangkit Listrik Tenaga Panas Bumi Skala Kecil Aziz, Amiral; Ola, Kornelis K
Jurnal Teknologi Lingkungan Vol. 20 No. 1 (2019)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (889.504 KB) | DOI: 10.29122/jtl.v20i1.2832

Abstract

ABSTRACTScaling and corrosion are two major problems in operation of the Small Scale Geothermal Power Plant. This paper discusses some results of the study that was conducted to assess the scaling formation in the Kamojang 3 MW Small Scale Geothermal Power Plant. The result of the study concluded that scaling occurred on the nozzle and steam turbine blade where the main minerals contained in sample A (solid) are Tridymate (SiO2), Pyrite (FeS2) and Chlorite (ClO2). While in sample B (sand) where the main mineral contained in the sample is Tridymate (SiO2), Pyrite (FeS2), Plagioclase (Na,Ca)(Si, Al)4O8 and Chlorite (ClO2). The analysis of this scaling was done by XRD (X-Ray Diffraction) method.  Scaling of the nozzle of the steam turbine causes the steam flow rate to decrease, thus lowering the power that the Small-Scale Geothermal Power Plant generates because the power generated by the Small-Scale Geothermal Power Plant is directly a function of the steam flow rate and the enthalpy difference between the inlet side and the outlet side of the turbine. However, scaling does not occur on the exit side of the wellhead KMJ 68 because the concentration of silica is very small that is 0.05 ppm at geothermal steam temperature 200.5°C.Keywords: geothermal steam, scaling, corrosion, Small Scale Geothermal Power Plant ABSTRAKScaling dan korosi merupakan dua masalah yang sangat serius ditemukan pada pengoperasian PLTP Skala Kecil. Tulisan ini membahas sebagian hasil studi yang dilakukan untuk mengkaji pembentukan scaling pada PLTP Skala Kecil Kamojang 3 MW dan pengaruhnya pada daya listrik yang dihasilkan oleh PLTP Skala Kecil. Dari hasil kajian dapat disimpulkan bahwa scaling terjadi pada Nozzle dan sudu-sudu turbin dimana mineral utama yang terdapat didalam sampel A (berupa endapan/padat) adalah Tridymate (SiO2), Pyrite (FeS2) dan Chlorite (ClO2). Sedangkan pada sampel B (endapan lepas/pasiran) dimana mineral utama yang terdapat didalam sampel adalah Tridymate (SiO2), Pyrite (FeS2), Plagioclase (Na,Ca)(Si,Al)4O8 dan Chlorite (ClO2). Analisis scaling ini dilakukan dengan menggunakan metoda XRD.(X-Ray Diffraction). Scaling yang terjadi pada bagian nozzle dari turbin uap menyebabkan laju aliran uap berkurang sehingga menurunkan daya yang dihasllkan PLTP Skala Kecil karena daya yang dihasilkan PLTP Skala Kecil secara langsung merupakan fungsi dari laju aliran uap dan perbedaan entalpi antara sisi masuk dan sisi keluar dari turbin. Akan tetapi, tidak terjadi scaling pada sisi keluar kepala sumur KMJ 68 karena kosentrasi silika sangat kecil yaitu sebesar 0,05 ppm pada temperatur uap panas bumi 200,5oC .Kata kunci : uap panas bumi, scaling, korosi, PLTP Skala Kecil, 
APLIKASI TEKNOLOGI SARPALAM 100UF UNTUK PENYEDIAAN AIR BERSIH DI DUSUN DANTAR, PADANG CERMIN, LAMPUNG Herlambang, Arie
Jurnal Teknologi Lingkungan Vol. 2 No. 2 (2001): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1527.98 KB) | DOI: 10.29122/jtl.v2i2.207

Abstract

Dantar Village can be reached from Bandar Lampung in one hour. There are 250 families or around 1250 people dwell there. In Dantar, groundwater is difficult to tap, especially during dry seasons, and the water is usually turbid and salty due to hydrothermal activities at several places. Sarpalam 100 UF is the accronym of Saringan Pasir Lambat (Slow Sand Filter), which has capacity of 100 m3/day with an up flow system. Standard design for the first filtration is 6 m3/m2/day, and 4 m3/m2/day for second one, with media 1 m thickness. Sarpalam 100 UF utilizes double system is intended to keep the running even though the whole unit is being cleaned. The unit is also equippped with top and bottom flushing systems to ease maintenance. The water processed comes from Way Sanggi Rivers situated 300 m from the location of the equipment, with an elevation difference of 4,5 m. Its watercatchment uses branching porous pipe, submerged in the ground, so a constant water supply can be maintained although a flood is coming. The Sarpalam 100UF has operated for 2 months and its distribution network development is underway.
PENGOLAHAN EFLUEN REAKTOR FIXED BED SECARA KOAGULASI Indriyati, Indriyati; Diyono, Diyono
Jurnal Teknologi Lingkungan Vol. 12 No. 3 (2011)
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (444.094 KB) | DOI: 10.29122/jtl.v12i3.1236

Abstract

effluent dari reaktor fixed bed pengolahan limbah cair pembuatantahu masih mengandung organik tinggi dan memiliki banyak padatan tesusensi , sehingga warnaair limbah tidak cukup jernih , dan sulit diturunkan secara anaerob. Tujuan percobaan dari proses ini dalah untuk menghasilkan air limbah untuk embuatan tahu menjadi lebihjernih. berdasarkan alasan diatas, maka dilakukan pengolahan limbah cair dengan menggunakan proses koagolasi menggunakan Alumunium sulfat dan Ca (OH)2 yang ditambahkan ke efluen reaktor fixed bed dengan variasi dosis sulfat Alumunium : mulai dari 0,5; 1,0 ; 1,5; 2,5; 5,0; 7,5 gramdan batuan Ca (OH)2. Akan meningkatkan alkanitas, sampai PH 8.0. Hasil percobaan menunjukan bahwa, percobaan yang menggunakan koagulan Almunium sulfat secukupnya dan penambahan Ca(OH)2 untuk menstabilkan pH, sehingga diperoleh kualitas hasil pengolahan yang baik, dan sesuai dengan perfomance efluen reactor fixed bed yang jernih. Selain itu, aplikasi Ca(OH)2 dapat membantu meningkatkan konerja koagulan yang dapat dilihat dari ukuran flok sedimentasi dari effluen anaerob
ALTERNATIF PENGOLAHAN LIMBAH RUMAH POTONG HEWAN - CAKUNG ( SUATU STUDI KASUS ) Padmono, Djoko
Jurnal Teknologi Lingkungan Vol. 6 No. 1 (2005): JURNAL TEKNOLOGI LINGKUNGAN
Publisher : Center for Environmental Technology - Agency for Assessment and Application of Technology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (176.105 KB) | DOI: 10.29122/jtl.v6i1.335

Abstract

Public awareness on environmental protection is getting better now. This condition has also rise in a company own by Province Governmental of DKI Jakarta Raya in the field of slaughtering cattle. This company, namely Cakung Slaughterhouse stay in Jakarta Timur is more a public services instead of a private company. On the waste and wastewater handling as the by product of all activity in Cakung Slaughterhouse, an assessment and development of handling waste and wastewater was carried outcooperation with German agricultural research institute (Bundesforschunganstaltfuerlandwirschaft – FAL) through on the job training, design and engineering of the waste and wastewater treatment plant that would be developed. The training was done by handling the waste of German slaughterhouse as a case study in Germany that has no experience in it on a Cooperation Project of Biological Waste and Wastewater treatment – BTIG Project. Fortunately, beside the technologyand system on waste and wastewater handling, also getting the high awareness in condition for a healthy circumference of life need. Make this project as basic of design on waste and wastewater treatment plant of a slaughterhouse, at least on the essentials organic waste treatment mode.

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