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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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JURNAL REKAYASA LINGKUNGAN LINGKUNGAN, JURNAL REKAYASA
Jurnal Rekayasa Lingkungan Vol 12, No 1 (2019): JURNAL REKAYASA LINGKUNGAN
Publisher : BPPT

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Abstract

FEASIBILITY ANALYSIS OF USING BIOGAS RECOVERY FROM PALM OIL MILL EFFLUENT dkk, Subiyanto
Jurnal Rekayasa Lingkungan Vol 7, No 3: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

The increasing of crude palm oil (CPO) production in Indonesia is followed by the increasing of palm oil mill effluent. Unfortunately, the open system effluent treatment carried out by most of the palm oil mills potentially generates methane gas emission and increases greenhouse gas concentration in the atmosphere. This study proposes of using methane gas recovery for alternatively flaring and generating electricity, and analyze it in the framework of Clean Development Mechanism. Samples of effluent were taken from the three size of palm oil mills (60, 40, and 30 tonnes per hour of empty fresh bunch) in north Sumatra. The results indicate that capturing methane gasfrom the palm oil mill effluent and using the biogas for generating electricity mainly and flaring the rest will reduce carbon emissions as well as generate the additional income for the palm oil mill business.keywords : POME, methane, carbon emission, generating electricity, feasibility analysis of business
STUDI BIONOMIK VEKTOR MALARIA DI KECAMATAN KALIBAWANG, KULONPROGO Windarso dkk, Sardjito Eko
Jurnal Rekayasa Lingkungan Vol 4, No 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

The increasing of malaria cases in recent years at Kecamatan Kalibawang has been suspected correspond with the conversion of farming land-use which initiated in 1993. Four years after the natural vegetation in this area were changed become cocoa and coffee commercial farming estates, the number of malaria cases in 1997 rose more than six times, and in 2000 it reached 6085. This study were aimed to observe whether there were any differences in density and diversity of Anopheles as malaria vector between the cocoa and mix farming during dry and rainy seasons. The results of the study are useful for considering the appropriate methods, times and places for mosquito vector controlling. The study activities comprised of collecting Anopheles as well as identifying the species to determine the density and diversity of the malaria vector. Both activities were held four weeks in dry season and four weeks in rainy season. The mea-surement of physical factors such as temperature, humidity and rainfall were also conducted to support the study results. Four dusuns which meet the criteria and had the highest malaria cases were selected as study location. Descriptively, the results shows that the number of collected Anopheles in cocoa farming were higher compared with those in mix horticultural farming; and the number of Anopheles species identifi ed in cocoa farming were also more varied than those in the mix horticultural farming.Key words: bionomik vektor malaria, anopheles,
INCINERATION FOR MUNICIPAL SOLID WASTE TREATMENT Yuliani, Manis
Jurnal Rekayasa Lingkungan Vol 9, No 2 (2016): Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

In order to reduce the accumulation of waste in landfill, incineration technology could becomes one of the solutions. In addition to reduce the volume of waste, the energy generated by incineration process can also be utilized. Plant Incineration consists of four categories process, namely pre-treatment process, combustion process, energy recovery process and flue gas treatment process (Air Pollution Control system). Pre-treatment process is used to increase the average calorific value of waste. Pre-treatment process depends on the type of incinerator used. Combustion process in an incinerator must accommodate the principles of 3 T (temperature, turbulence, time). Process conditions for the type of incinerator grate in accordance with the principle of 3 Tare the waste residence time in the grate less than 60 minutes, gas residence time more than 2 seconds and the gas temperature over 850 C. In the combustion process will produce heat carried by flue gas. The heat will flow into energy recovery process to be utilized. From energy recovery process, flue gas will enter into the APC system to reduce air pollution caused by combustion process.keywords : incinerator, waste, energy recovery
PEMANFAATAN LIMBAH KAKAO SEBAGAI PAKAN TERNAK KAMBING Akhadiarto, Sindu
Jurnal Rekayasa Lingkungan Vol 5, No 3: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

Feed is the main component in livestock industry, and contributes 70% of the total farming cost. Agriculture by-product is one of the alternative feed ingredients for goat feed. The width of cocoa estates in Indonesia in period 2003-2007 shows the highest improvements (43,5 %) than other commodity estates, thus cocoa estates have integrated prospect with livestock industry. Cocoa husk is the most waste of cocoa (73,77 %) and contains raw protein and energy which is not too different with kinggrass, so can substitute green feed more than half. The potential of livestock integrated with the cocoa estates ha a good prospect on the public estate?s development. Cocoa estate has a good prospect to support the integrated with goat farming, however it need s a real concept of the integrated program that work sustainable. The potency of cocoa estate has carrying capacity of 6.05 head goats for 1 hectare area. This is based on the need of the feed from cocoahusk of 1.5 kg/head/day.Keywords : cocoa waste, goat feed
JURNAL REKAYASA LINGKUNGAN Lingkungan, Jurnal Rekayasa
Jurnal Rekayasa Lingkungan Vol 11, No 2 (2018): Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

UTILIZATION OF OLD NUTMEG FLESH WASTE IN MALUKU Dumadi, Suryatmi Retno
Jurnal Rekayasa Lingkungan Vol 7, No 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

Until the end of 2007, nutmeg flesh had been disposed as a waste because it is not harnessed into a valuable product in nutmeg producer area on the island of Ambon and Banda in Maluku. Diversification treatment from nutmeg flesh waste into syrup can provide economical value to the product, and health benefits to those who consume it. Manufacturing process done by using simple apparatus starts from extracting nutmeg liquid, sterilizing nutmeg syrup container, mixing with sugar, bottling, labeling to produce salable nutmeg syrup. The 1:1 ratio of nutmeg liquid to sugar gives good taste and preferred. Extracted flesh waste has been utilized as nutmeg flesh cake by mixing sugar in ratio of 1:1, battering evenly and drying in the sun or a heating oven at temperature of 50 oC to produce tasty nutmeg cake with economical value-added.keywords : nutmeg flesh waste, nutmeg syrup, old nutmeg.
EVALUASI PERUBAHAN KUALITAS TANAH PADA LAHAN BEKAS PENAMBANGAN NIKEL DI PULAU GEBE Wibowo, Mardi
Jurnal Rekayasa Lingkungan Vol 4, No 1: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

Since year 1977 until 2005, PT. ANTAM has been exploited nickel ore resources at Gebe Island ? Center ofHalmahera District ? North Maluku Province. Mining activity, beside give economically advantages also causedegradation of environment quality espicially land quality. Therefore, it need evaluation activity for change ofland quality at Gebe Island after mining activity.From chemical rehabilitation aspect, post mining land and rehabilitation land indacate very lack and lackfertility (base saturated 45,87 ? 99,6%; cation exchange capacity 9,43 ? 12,43%; Organic Carbon 1,12 ?2,31%). From availability of nutrirnt element aspect, post mining land and rehabilitation land indicate verylack and lack fertility (nitrogen 0,1 ? 1,19%). Base on that data, it can be concluded that land reclamationactivity not yet achieve standart condition of chemical land.Key words : land quality, post mining lan
REVIEWS OF ELECTROCOAGULATION PROCESS ON WASTE WATER TREATMENT TECHNOLOGY Hernaningsih, Taty
Jurnal Rekayasa Lingkungan Vol 9, No 1 (2016): Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

Waste water treatment by industry usually uses chemicals that may lead to additional environmental pollution load. On the other hand, water demand increases and environmental regulations regarding waste water disposal requirements that apply more stringent. It is necessary for waste treatment technique that accommodate this requirement. Electrocoagulation process is a technique of wastewater treatment that has been chosen because the technique is environmentally friendly. This paper will review some of the research or application electrocoagulation process which is conducted on industrial waste water. Types of industrial waste water that is to be reviewed include: industries batik, sarongs, textiles, palm oil, slaughterhouses, food, leather tanning, laundry, pulp and paper. Overview reviewed in this research include the waste water treatment process in several processing variations such as: change in time, electricity and kind of electrodes. The results of the research with electrocoagulation process in the industry are the removal efficiency of TSS, COD, BOD5, Chrome, phosphate, surfactants, color turbidity influenced by several factors including time, strong current, voltage, distance and type of electrode and pH. The results of the study with electrocoagulation process in the industry is the removal efficiency of TSS, COD, BOD5, chromium, phosphate, surfactant, turbidity color that are influenced by several factors including time, strong current, voltage, distance and type of electrode and pH. It is hoped the information presented in this article can be a reference for similar research for the improvement of research on the process ektrokoagulasi.Key words: elektrocoagulation, removal eficiency, environmental friendly
ISOLASI DAN IDENTIFIKASI BAKTERI LIMBAH BIODIESEL PENGHASIL BIO-ENERGI DAN BIO-MATERIAL Rachman, Mahyudin Abdul
Jurnal Rekayasa Lingkungan Vol 5, No 2: Jurnal Rekayasa Lingkungan
Publisher : BPPT

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Abstract

Glycerol from the waste of biodiesel can be utilized to 1,3-propanediol (PDO) and hydrogen gas (H2) with biotransformation processing. The product of PDO will be used as raw material for polymer, polyurethane and polyester and H2 will be converted to electrical energy by using Fuel-cell. The anaerobe or aerobe bacterium which has ability to degrade biodiesel waste for environmental friendly such as genus Enterobacter, Klebsiella, Clostridium, Bacillus, Citrobacter, etc. The direct screening of bacteria for isolation from biodiesel waste in order to obtain the bacteria which has highest conversion of glycerol to PDO and H2. We have found that 28 species from liquid and 7 from solid biodiesel waste and by using IMVIC testing, 7 species of bacteria was Klebsiella or Enterobacter which can be predicted to convert glycerol for PDO and H2. The highest yield product was species TH3from biodiesel waste. Moreover, the microbiology identification indicated that the strain TH3 was Klebsiella sp. strain 23 with 98 % similarity.Key words : Waste of biodiesel, Glycerol, PDO, H2and bacteria.

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