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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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PERLAKUAN ETHYL METHANE SULFONATE (EMS) PADA ENTEROBACTER AEROGENES AY-2 DARI LIMBAH METAN FERMENTASI UNTUK PENINGKATAN PRODUKSI GAS HIDROGEN Rachman, Mahyudin Abdul
Jurnal Rekayasa Lingkungan Vol 5, No 1: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

Enterobacter aerogenes AY-2 mutant is known for hydrogen gas producer which ws obtained from the sludge of methane fermentation and the yield is 1.5 fold higher than wildtype. Hydrogen gas production can be gain via NADH oxidation in anaerobic metabolic pathway by blocking organic acid production. Metabolic pathway can be changed by mutagenesis. Enterobacter aerogenes AY-2 mutated with ethyl methane sulfonate in logarithmic phase with consentration 10, 11, 12, 13, 14 and 15 ?l/ml cell suspention during 120 minute. Mutation that result lowest survival ratio (0,01%) was 14 ?l EMS/ml cell suspention is repeated with variation incubation time, 30, 60, 90 and 120 minute. 166 double mutant colony has been collected and choosen randomly. The choosen 43 colony was fermented in glycerol complex medium for determining ten double mutant with the highest H2 production. Double mutant AD-H43 is a highest H2 producer that increase 20% H2 production from AY-2 and has a decrease lactid acid production, 31% less from AY-2. Increasing H2 production in double mutant AD-H43 is caused by lactate dehydrogenase deffi cient.Keywords: Enterobacter aerogenes AY-2, ethyl methane sulfonate (EMS), H2 and methane sludge
PENGOLAHAN SAMPAH DENGAN TEKNOLOGI HIDROTERMAL Kristyawan, I Putu Angga
Jurnal Rekayasa Lingkungan Vol 10, No 1 (2017): Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

Sampah yang tidak dipilah dengan baik disumber akan memiliki komposisi sampah beragam dan tinggi kadar air. Kondisi ini menimbulkan permasalahan kesehatan baik bagi masyarakat yang tinggal dekat dengan pembuangan akhir maupun yang tidak. Sampah dengan criteria seperti ini, dapat diolah dengan teknologi hidrotermal. Teknologi hidrotermal memanfaatkan sifat air yang unik dan hanya berlangsung pada suhu dan tekanan yang tinggi. Hasil pengolahan sampah campuran dengan teknologi hidrotermal, menghasilkan produk yaitu bahan bakar padat. Bahan bakar padat ini memiliki nilai kalor yang setara dengan batubara batubara sub-bituminus grade rendah. Tantangan pengembangan teknologi hidrotermal untuk mengolah sampah datang dari segi pembiayaan, proses pengeringan produk, dan modeling pembakaran bahan bakar produk.  kata kunci : sampah, campuran, kadar air tinggi, hidrotermal, bahan bakar padat
STUDI KARAKTERISTIK SEDIMEN KAITANNYA DENGAN PENGELOLAAN WILAYAH PESISIR INDRAMAYU JAWA BARAT Ganie, Basri M
Jurnal Rekayasa Lingkungan Vol 6, No 3: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

The northern part of java coastline in particular in Dadap Valley and Limbangannearby to Indramayu was heavily destroyed by erosion affected by strong wavecoming from opensea.It showed that some areas such as in Pamanukan coastline seemed to be heavily threated by erosion. This study was carried out by scientist of BPPT with the Objective of understanding the characteristic of sediments affected by erosion in Indramayu coast areas. According to information from local people living nearby coast and beach of Indramayu, The erosion destroyed coastline approximately 10-20 meter every year. Based on grain size analysis the sediments reveald 3 catagories of environment covered a long coast areas in Indramayu as follow :1. Coast sediments ; consisting of fein coastal sand, Silt.2. Delta sediments ; Siltig sand with Mollusca fragments.3. Flood upland sediments; Humous clay, silt, middle to coarse sands.The Occurrence of fein sand sediment deposition on the upper layer of coastalareas indicated that areas may influenced directly also with strong long shorecurrent.Keywords: sediment characteristic, coast, delta sediments, flood upland sediments, Delta , sediment abrasion
SURVEI LAUT DALAM RANGKA MENGURANGI RESIKO HAMBATAN DALAM PENGGELARAN KABEL ELEKOMUNIKASI BAWAH LAUT DI SELAT KARIMATA Muljawan, Djunaedi; Haryadi, Yudo; Ardhyastuti, Sri; Rahardian, Rahadian; Sudaryanto, Agus; Ilyas, M; Riyadi, Adi Slamet
Jurnal Rekayasa Lingkungan Vol 12, No 1 (2019): JURNAL REKAYASA LINGKUNGAN
Publisher : BPPT

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Abstract

Kajian ini dilaksanakan dalam rangka rencana penggelaran kabel telekomunikasi (PT. Moratelindo) antara Pulau Kalimantan dengan Pulau Belitung. Untuk menghubungkan kedua pulau tersebut kabel akan melalui Selat Karimata. Usulan jalur kabel  atau rute kabel ditentukan melalui Desk Top Study yang dilaksanakan oleh Balai Teknologi Survei Kelautan-BPPT dengan memanfaatkan informasi dan data sekunder sebagai usulan awal jalur survei. Ada beberapa potensi resiko yang bisa mengakibatkan hambatan dan kerugian pada saat penggelaran kabel, yang mana hal ini tidak bisa diidentifikasi dari data sekunder. Untuk itu perlu dilakukan survei laut, kajian dan analisis hasil survei untuk mengurangi resiko tersebut. Metoda survei laut yang diterapkan dalam kajian ini meliputi survei hidrografi, survei geofisika dangkal, dan pengambilan contoh sedimen. Hasil survei menunjukan adanya beberapa lokasi berpotensi bisa menyebabkan hambatan dalam pelaksanaan pengeelaran kabel yang disebabkan adanya objek objek berbahaya didasar laut, kelerengan dasar laut yang tajam, penurunan permukaan dasar laut, adanya terumbu karang dan kanal. Dari analisis data dan analisis potensi resiko, hasil survei laut bukan merupakan revisi perubahan rute yang besar. Namun demikian survei laut ini sangat penting dilakukan untuk mengurangi hambatan pada saat proses penggelaran mengingat bahwa mesin penggelar kabel adalah mesin yang mahal sehingga kerugian yang diakibatkan tidak dilakukan survei laut akan jauh lebih besar apabila tidak dilakukan survei laut.  Kata kunci: Survei laut, mengurangi, resiko, hambatan, penggelaran kabel
BIOLOGICAL FERTILIZER EFFECT OF HEAVY METAL ABSORPTION OF COPPER AND LEAD TO BABY CORN CROP sudaryono, Sudaryono
Jurnal Rekayasa Lingkungan Vol 7, No 3: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

Absorption of heavy metals by plants is influenced by soil and plant biology. Heavy metals are absorbed into plant tissues through the root, then enter the food chain cycle. Metal will accumulate in body tissues and can have negative impacts for humans, animals, and plants when exceeding the limit of tolerance. Heavy metal accumulation in plant tissues can directly affect plant growth and production, can indirectly affect human health when consuming food contaminated heavy metals. The research objective was to determine the ability of biological fertilizers containing bacteria Azotobacter sp. and Pseudomonas sp., in absorbing heavy metals (Cu and Pb) contained in landfill waste compost, which is used to fertilize crops corn (baby corn). The research methodologyuses a split plot design arranged in Completely Randomized Design with 3 blocks as replicates. The first factor that serves as the main plot of the biological fertilizer, consisting of two cedars, namely: no biological fertilizers and biological fertilizers. The second factor that functions as a sub plot that is a combination of landfill waste compost with NPK fertilizer, consisting of four treatments, namely: Compost waste landfill: no fertilizer NPK = 1: 0; compost waste landfill: NPK = 2/3 : 1/3; compost waste landfill: fertilizer NPK = 1/3: 2/3Without landfill waste compost: NPK = 0: 1. The results showed that administration of biological fertilizers in combination with compost waste landfill is more dominant for increasing and improving soil physical chemistry, such as increasing soil pH, nutrients nitrogen, phosphorus and potassium and cation exchange capacity (KPK). Biological fertilizer containing bacteria Azotobacter sp. and Pseudomonas sp. may reduce the uptake of heavy metals Cu to below the threshold of 2.526 to 15.79 ppm, the maximum content of Cu ranges between 20-100 ppm. The mean content of Pb in tissues and cobs of corn is above the maximum limit of 29.80 to 42.69 ppm, which is still allowed Pb content between 0.1 to 10 ppm. Means baby corn crop is not safe for consumption.key words: compost from the landfill, heavy metals, biological fertilizer
EVALUASI KONDISI LINGKUNGAN PERAIRAN KAWASAN PULAU ABANG, GALANG BARU, BATAM BERDASARKAN ANALISA INDEKS STORET DAN SIMILARITAS CANBERA Sachoemar, Suhendar I
Jurnal Rekayasa Lingkungan Vol 4, No 3: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

Evaluation of the water quality status at Abang Island Region was conducted by using the STORET and Canbera Similarity Indeks during Mei, June and October 2006. Thes analysis result shows that the water quality within this region was within the range of good to moderate. This condition indicats that the water quality status is still suitable to support the marine biotic life. During May, the water quality was good, but in June and October was decreased due to the increasing of the organic material transported by land surface run off driven by precipitation as response to the seasonal change.Key words : Kualitas air, Pulau Abang, Indeks Storet, Indeks Similaritas Canbera.
PENGURANGAN GAS RUMAH KACA DARI LIMBAH CAIR DI PABRIK KELAPA SAWIT PT PERUSAHAAN NUSANTARA, RIAU Febijanto, Irhan
Jurnal Rekayasa Lingkungan Vol 5, No 3: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

Waste water utilization in palm oil mills (POMs) in Indonesia is limited only for land application and in some palm oil mills the waste water is unutilized and it is only discharged to a river. The technology of methane gas utilization produced from waste water have been developed, unfortunately economical barrier is a big problem to implement it in the POMs. Since Clean Development Mechanism (CDM) have been being introducing in Indonesia, many foreign investors who looking for Certified Emission Reduction (CER) visit and investigate potential reductions in Indonesia. Using CDM Mechanism, it will change feasibility of an activity of methane gas capture. An income from selling CER makes theeconomical feasibility of methane gas capture increase. The purpose of this study is to investigate the potential methane gas produced in waste water pond in all POM owned by PTPN V, located in Riau Province. Area of own plantation, amount of processed (Fresh Fruit Bunch (FFB) and distance of the location are proposed as a consideration for selecting candidate locations. The potentialmethane gas captured was calculated. It was known that four POMs have a potential methane gas amount produced from waste water pond, and the investment in those locations were feasible based on the NPV calculation result. Utilization of captured methane gas as a fuel for power generation is inconsiderate, because negotiation is predicted will be takes a long time.Key words: green house gasses, palm oil mill, empty fruit bunch, fresh fruit bunch, palm mill oil effluent, clean development mechanism
ANALISIS POTENSI SUMBERDAYA LAHAN UNTUK PERENCANAAN PENGEMBANGAN KOMODITAS UNGGULAN PERKEBUNAN DI KABUPATEN BANYUWANGI mubekti, Mubekti
Jurnal Rekayasa Lingkungan Vol 6, No 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

Land is limited and non-renewable resource, on the other hand, people who need the land for development grow quickly. This paper discuss about the evaluation of land resource for plantation estate development planning in Banyuwangi District. General information regarding to physical environment are presented in order to know an overview of the study area. The Methodology of land suitability classifi cation corresponding to the selected plantation crops are briefl y explained, then, the results of the study are discussed. The study area consist of 9 physiographic spread from the fl at slope near the cost and verysteep slope near the mountain. Based on the land physical evaluation shows that the parent materials of the land are dominated by volcanic and lime stone. The results of the suitability classifi cation indicate that coconut crop could grow well in most of the plain up to undulating area. The land which suitable for coffee, clove and Vanilla cultivation are very small compared to the total of the study area and they are mostly located in the middle of the study area. Limiting factors of land suitability are mainly very diffi cult to upgrade, such us steep slope, soil effective depth, soil porosity, and drainage. In general, Banyuwangi District has a high potency of land for plantation estate extension.Keywords: land suitability, plantation estate, GIS, agriculture
JURNAL REKAYASA LINGKUNGAN Lingkungan, Jurnal Rekayasa
Jurnal Rekayasa Lingkungan Vol 11, No 2 (2018): Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

KONSEP PENGELOLAAN SAMPAH DI KAWASAN INDUSTRI Shochib, Rosita
Jurnal Rekayasa Lingkungan Vol 4, No 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

Industrial parks play a signifi cant role in the production and use of goods and services. The proper management of solid waste is a major challenge for industrial parks due to the large quantity of wastes and the variability of waste characteristics from these types of developments. Therefore, integrated solid waste management has become very crucial to the industrial park managers. Such an approach requires industrial park managers to assess the overall use of resources, and to seek waste reduction, reuse and recycling opportunities both at the individual company level and among different tenant companies. The adoption of this method can bring both economic and environmental benefits.Key words : SWM, Industrial Park, 3R

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