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INDONESIA
Jurnal Rekayasa Lingkungan
Published by Badan Pengkajian dan Penerapan Teknologi
ISSN : -     EISSN : -     DOI : -
Core Subject : Agriculture,
Agriculture, Biological Sciences & Forestry
Arjuna Subject : -
Articles 589 Documents
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PROGRAM ’KONVERSI MINYAK TANAH KE LPG’ SEBAGAI SUATU TEHNIK PENGURANGAN EMISI Suarna, Endang
Jurnal Rekayasa Lingkungan Vol 6, No 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

The goal of Government Policy on converting the utilization of kerosene to LPG is to reduce kerosene consumption and fuel oil subsidy. As kerosene has higher pollutants and greenhouse gases emissions rather than LPG, the program also has impact on reducing those emissions that would lead to improving indoor air quality. Higher energy efficiency of LPG stove and more reserve production ratio (R/P) of gas can be attributed to the advantages of utilization of LPG. Indirectly, the conversion kerosene to LPG has another impact on reducing illegal blending between gasoline or diesel with kerosene for transportation sector. The program not only has economical advantages, but also has environmental advantages.Key words: LPG, kerosene, fuel oil subsidy, energy efficiency, indoor air quality
POLA DAN SEBARAN SEDIMEN WILAYAH PERAIRAN BULUMINUNG, PENAJAM PASER UTARA Ardhyastuti, Sri
Jurnal Rekayasa Lingkungan Vol 12, No 1 (2019): JURNAL REKAYASA LINGKUNGAN
Publisher : BPPT

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Abstract

Kegiatan penelitian pola dan sebaran sedimen di perairan Buluminung Penajam Paser Utara dilaksanakan atas kerjasama Badan Pengkajian dan Penerapan Teknologi (BPPT) dan BAPPEDA Penajam Paser Utara, Kalimantan Timur. Penelitian ini dimulai sejak tahun 2013 hingga saat ini dengan analisa data yang dilakukan pada tahun 2016. Tujuan dari penelitian ini adalah untuk melakukan pemetaan jenis dan pola sebaran sedimen melalui identifikasi jenis batuan dan asal usul sedimen dengan analisa pengaruhnya terhadap lingkungan. Pola  penyebaran sedimen dianalisa dari besar butir (granulometri) dengan sistem pengayakan dan penyaringan (sieving). Penyaringan menggunakan 5 buah ayakan dengan ukuran diameter berdasarkan skala Wentworth. Berdasarkan hasil analisa dari besar butir sedimen didominasi oleh kandungan pasir halus. Hal ini kemungkinan disebabkan  oleh pengaruh rendahnya kecepatan arus, vegetasi mangrove,  dan  perubahan ekologi karena aktivitas manusia ataupun alam secara alamiah. Kata kunci : granulometri, pesisir, lingkungan, pengendapan, Buluminung, Penajam Paser Utara
SOLID-LIQUID FERMENTATION PROCESS FOR SOLID WASTE PALM OIL PROCESSING Setyahadi., dkk, Siawa
Jurnal Rekayasa Lingkungan Vol 7, No 3: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

The main elements contained in solid waste palm-called empty fruit bunches palm oil are 45-50% cellulose, 25-35% hemicellulose and lignin. Empty fruit bunches palm oil are used as compost feedstock in this study have a 56.49% of C-organic content, 0.34% of N-total, and 165.15 of C / N ratio.Solid waste oil palm is increasing in line with the needs of palm oil for household needs. While palm trees need a good fertilization in order to increase oil palm productivity. Traditionally, processing of empty fruit bunches palm oil to be composted,left on open land that will take a long time and vast land in accordance with its production capacity. By using solid-liquid fermentation is expected to occur with a rapid decomposition process with enzymatic hydrolysis and followed by higher temperature at 100 oC or 121oC. The result shows that, within 4 days of decomposition, a pH value between 6-8, the water content 70-80%, C content was decreased from 56% to 53-49%, increasing N-Total value start from 0, 34% to 0.9%, and decreased the C/N ratio from 165 to 58.keywords : empty fruit bunches palm oil, fermentation, compost, solid-liquid
PROSES PENGOLAHAN LIMBAH ORGANIK SECARA KOAGULASI DAN FLOKULASI indriyati, Indriyati
Jurnal Rekayasa Lingkungan Vol 4, No 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

Soya bean sauce waste water is an high organic wastewater and has dark colour, therefore it is diffi cult to degrade it biologically. Base on as mentioned above, it is tried to process it with coagulation and fl okulation use Alumunium sulphate and PAC which is added to wastewater with several dosis variation of Alumunium sulphate: 100, 200, 300. 250, and PAC with dosis 50, 100, 150, 200 ppm. Experiment result shows the experiment which use a match Alumunium sulphate and PAC as coagulant could give a good quality of processing and suitable with the treshhold of wastewater. The application of fl okulan Aquaklir 240 could help the performance of coagulan that can be seen from the fl oc size form.Key words : fl occulation, coagulation.
ROLE OF RECYCLING IN INCREASING INTEGRATED WASTE MANAGEMENT IN SURABAYA suprapto, Suprapto
Jurnal Rekayasa Lingkungan Vol 9, No 2 (2016): Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

In the affluent countries, the main motivations for waste reduction are frequently related to the high cost and scarcity of sites for landfills, and the environmental degradation caused by toxic materials in the deposited wastes. The same considerations apply to large metropolitan areas in developing countries that are surrounded by other populous jurisdictions. The places that currently do not have significant disposal pressures can still benefit from encouraging waste reduction. Their solid waste departments (Dinas Kebersihan), already overburdened, cannot afford to spend more money and effort on the greater quantities of wastes that will inevitably be produced as consumption levels rise and urban wastes change.Solid waste managers in developing countries tend to pay little attention to the topic of reducing non-organic wastes because the wastes they collect are between 50% to 90% organics, dirt and ashes. These municipal wastes, however, are amenable to composting or digestion, provided they contain very low levels of synthetic materials (see the Composting part of the Sound Practices section). Solid waste departments thus have an interest in promoting diversion of synthetic recyclables from the waste stream. In the affluent countries, the main motivations for waste reduction are frequently related to the high cost and scarcity of sites for landfills, and the environmental degradation caused by toxic materials in the deposited wastes. The same considerations apply to large metropolitan areas in developing countries that are surrounded by other populous jurisdictions. The places that currently do not have significant disposal pressures can still benefit from encouraging waste reduction. Their solid waste departments, already overburdened, cannot afford to spend more money and effort on the greater quantities of wastes that will inevitably be produced as consumption levels rise and urban wastes change.Keywords : Recycling,Solid waste waste management, Schevengers, 3R
PERKEMBANGAN PRADEWASA DAN LAMA HIDUP IMAGO PSYTTALIA SP. (HYMENOPTERA: BRACONIDAE), PARASITOID LARVA LALAT BUAH BACTROCERA DORSALIS HEND (DIPTERA: TEPHRITIDAE) Pujiastuti, Yulia
Jurnal Rekayasa Lingkungan Vol 5, No 3: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

The objective of the research were to investigate level parasitization, immature development period, longevity of adult parasitoids, along with number of progeny and parasitoid sex of Psyttalia sp. attacking larvae of Bactrocera dorsalis. This experiment was conducted in Laboratory of Entomology, Department Plant Pest and Diseases Faculty of Agriculture, Sriwijaya University from March to September 2007. The result showed that the average level of parasitization of Psyttalia sp. reached 24.24%. The highest one was 30% and the lowest was 16.7%. The immature development period of Psyttalia sp. ranged from 24-31 days with average 27.5 days. Longevity of imago parasitoids which stored at 5 0C was 14.1 days. In the research, the progeny of parasitoids which produced was females with percentage of females reached 59.99% and percentage of males reached 39.99%.Keywords: fruit flies, Bactrocera dorsalis, parasitoid, Psyttalia sp.
PEMANENAN MIKROALGA DENGAN METODE SEDIMENTASI Santoso, Arif Dwi
Jurnal Rekayasa Lingkungan Vol 10, No 1 (2017): Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

Peraturan Presiden No.5/2006 tentang Kebijakan Energi Nasional menargetkan penggunaan energi terbarukan yang berbahan bakar nabati (BBN) seperti bioetanol dan biodiesel adalah sebanyak 5% pada tahun 2025. Peraturan inilah yang mendasari upaya pengembangan BBN biodiesel terutama dari biomassa alga sebagai salah satu bahan biodiesel yang paling potensial. Pada proses produksi biodiesel alga, sub proses pemanenan memegang peranan yang penting. Proses pemanenan relatif sulit dan memakan biaya opersional yang tinggi. Pada paper ini akan diulas proses pemanenan alga dengan metode sedimentasi. Bahasan difokuskan pada uraian proses sedimentasi, peranan proses sedimentasi dalam sistem produksi biomassa dalam fotobioreaktor, dan faktor-faktor yang mempengaruhi proses sedimentasi. Hasil dari paparan makalah ini diharapkan akan menghasilkan informasi yang obyektif tentang proses pemanenan alga bagi para praktisi alga dan khalayak ramai.Kata kunci : Biomassa,  mikroalga, sedimentasi, bahan bakar nabati (BBN)
BAHAN ORGANIK TERLARUT DALAM AIR LAUT Santoso, Arif Dwi
Jurnal Rekayasa Lingkungan Vol 6, No 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

Seawater contains high amounts of organic material and ions causing high salinity.The distribution of nutrients in the ocean is determined by ocean circulation, biological processes of uptake and mineralization, and subsequent regeneration of nutrients by migration of animals and by supply from the land.Topic related to sea water is important to discuss and to be a challenging with many researchers in Indonesia. In this paper, organic mater from sea water was learned in detail. The information contained of formulation history, justifi cation, distribution, advantages, and method of measure, type and effect to environment.Keywords: organic material, sea water, dissolved
KONSENTRASI LOGAM BERAT DARI DAERAH PERMUKIMAN DI SUNGAI CISADANE Sulistia, Susi
Jurnal Rekayasa Lingkungan Vol 11, No 2 (2018): Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

AbstrakPermukiman adalah kawasan yang didominasi oleh lingkungan hunian dengan fungsi utama sebagai tempat tinggal yang dilengkapi dengan prasarana, sarana lingkungan, dan tempat kerja terbatas untuk mendukung perikehidupan dan penghidupan sehingga fungsi permukiman tersebut dapat berdaya guna dan berhasil guna. Lokasi permukiman penduduk dapat bermacam-macam termasuk diantaranya di sekitar daerah aliran sungai (DAS). Salah satu permasalahan dalam daerah permukiman di sekitar DAS terlebih permukiman padat penduduk adalah air limbah domestik. Dalam air limbah domestik terdapat bahan kimia yang sukar untuk dihilangkan dan berbahaya termasuk di dalamnya logam berat. Adanya logam berat di perairan, berbahaya baik secara langsung terhadap kehidupan organisme, maupun efeknya secara tidak langsung terhadap kesehatan manusia. Pengukuran logam berat dalam air sungai di sekitar daerah permukiman merupakan salah satu cara untuk mengetahui tingkat pencemaran dalam sungai tersebut. Pengukuran kadar logam berat dalam sampel air sungai dilaksanakan dengan menggunakan alat Flame Atomic Absorption Spectrometry ?FAAS (AAS) dengan menggunakan sistem atomisasi nyala. Pengukuran dengan AAS membutuhkan lampu katoda dan panjang gelombang yang spesifik untuk masing-masing logam berat. Kualitas air sungai DAS Cisadane daerah permukiman dengan lokasi sampling Jembatan Pancasan Kabupaten Bogor dilihat dari kadar logam berat Pb, Cd, Cr, Cu, Co, Fe, Ni dan Mn, masih cukup baik karena kadar logam-logam berat tersebut masih dibawah ambang batas kadar maksimum berdasarkan mutu air kelas II sesuai Peraturan Pemerintah nomor 82 tahun 2001 tentang Pengelolaan Kualitas Air dan Pengendalian Pencemaran Air. Kata kunci : limbah, kualitas air sungai, permukiman, logam berat
APPLICATION OF CLEANER PRODUCTION OPPORTUNITIES IN TAFU INDUSTRY CENTRE IN KALISARI AND CIKEMBULAN VILLAGE, BANYUMAS DISTRICT, PURWOKERTO Widodo, Lestario
Jurnal Rekayasa Lingkungan Vol 7, No 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

Cikembulan and Kalisari village, in Banyumas district of Central Java, has grown into TOFU industrial center. The population of tofu industrial is about 600 industry, spread across two villages. Livelihoods of local people are farmers and traders to support the industrial activities of tofu, soy such as providing raw material to provide firewood for cooking, and providing simple tools, etc.. In the process of production, tofu waste industry, one of which liquid waste is usually dumped directly into rivers or drains around the house, so the environment becomes polluted. The purpose of this activity is to provide cleaner production training and technical assistance in the process of cooking. The results showed that with improved stoves and furnaces, the fuel consumption of 42.5% save, or save Rp 31 453,-per period of the process, the length of cooking know that 50% faster. Break Even Point (BEP) The value of the dimension of time is 191 days, and the improvement of environmental conditions.keywords : cleaner production, tofu waste industry

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