Informacja

Drogi użytkowniku, aplikacja do prawidłowego działania wymaga obsługi JavaScript. Proszę włącz obsługę JavaScript w Twojej przeglądarce.

Wyszukujesz frazę "Palm oil" wg kryterium: Temat


Wyświetlanie 1-8 z 8
Tytuł:
Biodiesel Production from Crude Palm Oil Using Kapok Skin KOH (Ceiba Pentandra) Catalyst as Solid Green Catalyst
Autorzy:
Jalaluddin
Ginting, Zainuddin
Maliki, Syariful
Setiawan, Arif
Zulfa
Powiązania:
https://bibliotekanauki.pl/articles/2086431.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
biodiesel
crude palm oil
high purity
Ceiba Pentandra
THF
tetrahydrofuran
Opis:
Biodiesel is one type of renewable alternative energy that has great potential to be developed. Biodiesel is a fuel consisting of a mixture of mono-alkyl esters of long-chain fatty acids made from renewable sources, such as vegetable oils or animal fats, one of which is crude palm oil (CPO). Crude palm oil contains free fatty acids in high levels, so treatment is needed to reduce free fatty acids by a reaction known as the esterification reaction. Then, the transesterification process is carried out to produce biodiesel (methyl ester). The purpose of this study was to analyze the effect of catalyst mass, a mole ratio of CPO to moles of methanol and the effect of adding THF co-solvent to biodiesel purity. The catalyst used is a heterogeneous catalyst from kapok fruit peel waste. Kapok fruit rind was calcined at 700°C for 8 hours. The independent variable varied the mole ratio of oil to methanol in a 1:4 ratio; 1:6; 1:8; and 1:10 with a catalyst weight variation of 3 and 4%. Meanwhile, for the addition of co-solvent, variations of THF: methanol v/v 1:1 and 2:1, were carried out. The biodiesel properties such as density, viscosity, water content and acid number, were evaluated and compared with the Indonesian National Standard. The results showed that the transesterification reaction with the addition of co-solvent resulted in a higher methyl ester content than that without the addition of co-solvent. The highest yield of methyl ester without the addition of co-solvent was 79.16%, while the yield of the methyl ester with the addition of THF co-solvent with a ratio of 1:1 and 2:1 v/v to methanol was 90.09 and 94.09%, respectively. The highest methyl ester content (94.09%) was achieved by the addition of THF: methanol = 2:1, CPO: methanol molar ratio = 1:6 and 4 wt% catalyst weight. The results obtained in this study indicate that a green catalyst made from kapok skin can be used to produce biodiesel and also the addition of co-solvent can increase the yield of methyl esters, so that high purity is obtained.
Źródło:
Journal of Ecological Engineering; 2022, 23, 5; 286--292
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Improving the Quality of Anaerobically-Pretreated Palm Oil Mill Effluent Using Electrocoagulation
Autorzy:
Sailah, Illah
Reyhanto, Fathan
Puspaningrum, Tyara
Romli, Muhammad
Suprihatin, Suprihatin
Indrasti, Nastiti Siswi
Powiązania:
https://bibliotekanauki.pl/articles/1839577.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
aluminum electrodes
electrocoagulation
empirical model
palm oil mill effluent
POME
pollutant removal
Opis:
The palm oil extraction process generates large amounts of effluents with very high concentrations of pollutants, even though they are subjected to anaerobic pretreatment. Further treatment is needed in order to ensure that the effluent is safe for disposal or reuse. This work was conducted to evaluate the performance of an electrocoagulation process in removing pollutants from the anaerobically-pretreated palm oil mill effluent. A 1000 ml beaker glass equipped with a magnetic stirrer was used as an electrocoagulation reactor with four plates of aluminum electrode @ 12×2 cm and an effective area of 0.1 m2 arranged in a bipolar configuration. The experiments run in a batch mode were carried out at various voltage levels and contact times, namely 10, 15, and 20 V for 15, 30, 45 and 60 min. The level of pollutant removal and electrical energy consumption were determined. The electrocoagulation process at 15 V for 30 min produced the highest level of pollutant removal for TSS, turbidity, color, COD, and BOD5, i.e. 90%, 86%, 93%, 87%, and 97%, respectively. The estimated operating costs for these process conditions are 1.48 USD/m3. A second order empirical model was developed to describe the TSS removal in the POME electrocoagulation process. The electrocoagulation with aluminum electrodes can significantly reduce various types of pollutants of anaerobically-pretreated POME, such as TSS, turbidity, color, COD, and BOD5. The estimated cost of EC operation is cheaper than the chemical coagulation process.
Źródło:
Journal of Ecological Engineering; 2021, 22, 1; 112-124
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Kinetics Coefficient of Palm Oil Clinker Media for an Attached Growth Media in Sequencing Batch Reactor Mode
Autorzy:
Kuan, Yap Zhi
Kutty, Shamsul R. M.
Ghaleb, Aiban A. S.
Powiązania:
https://bibliotekanauki.pl/articles/124778.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
attached growth media
kinetic coefficient
palm oil clinker
rate of removal
sequencing batch reactor
Opis:
Palm oil clinker media (POCM), which is a by-product of incineration process from palm oil industry, creates environmental sustainability issues. This is due to the method of handling solid waste material of industry by simply dumping it on an open land area. The previous study of POCM including physical and mechanical properties of solid present showed promising results of utilizing POCM as a packing media for treatment of domestic wastewater industry. The packing media can be used in the process of biological wastewater treatment system in Sequencing Batch Reactor (SBR) mode. By adopting POCM as an attached growth media, this research paper focuses on the performance of POCM in SBR mode in the context of organic and nutrient removal rate. The performance pertaining to the removal of organics and nutrient was measured using USEPA Standard Method for Chemical Oxygen Demand (COD) and Ammonia. The average rate of removal for COD and Ammonia per biomass adopting POCM in sequencing batch reactor mode is 0.0069 mg COD/mg MLVSS and 0.001 mg Ammonia/mg MLVSS.
Źródło:
Journal of Ecological Engineering; 2019, 20, 9; 18-27
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Formulation of Biochar-Compost and Phosphate Solubilizing Fungi from Oil Palm Empty Fruit Bunch to Improve Growth of Maize in an Ultisol of Central Kalimantan
Autorzy:
Ichriani, G. I.
Syehfani, -
Nuraini, Y.
Handayanto, E.
Powiązania:
https://bibliotekanauki.pl/articles/952432.pdf
Data publikacji:
2018
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
biochar
phosphate-solubilizing fungi
oil palm empty fruit bunch
Ultisol
Opis:
The efficiency of phosphorus uptake by plants in an Ultisol soil is very low because most of the soil phosphorus is precipitated by Al and Fe. Oil palm empty fruit bunches can be used as basic materials of biochar and compost, and as sources of isolates of phosphate solubilizing fungi. This study was aimed at elucidating the effect of application of phosphate-solubilizing fungi with biochar and the compost produced from oil palm empty fruit bunches on the growth and yield of maize an Ultisol of Central Kalimantan. This study consisted of two experiments. The first experiment was inoculation of four isolates of phosphate solubilizing fungi isolated from of oil palm empty fruit bunches, i.e. Acremonium (TB1), Aspergillus (TM7), Hymenella (TM1) and Neosartorya (TM8) to 'biocom' media (mixture of biochar and compost generated from oil palm empty fruit bunches) to obtain phosphate-solubilizing fungi that can adapt to the media. In the second experiment, the best results in the first experiment were applied to an Ultisol soil planted with maize. The results showed that the isolates that were best adapted to biocom media were Aspergillus-TB7 with 60:40 proportion (60% biochar + 40% compost) and Neosartorya-TM8 with 70:30 proportions (60% biochar + 40% compost). The use of the first experiment results in the second experiment showed that the application of biocom plus Neosartorya-TM8 (BTM) on an Ultisol soil significantly improved the growth and yield of maize, as well as its the phosphorus uptake and uptake efficiency.
Źródło:
Journal of Ecological Engineering; 2018, 19, 6; 45-55
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
A Review on Adsorption of Heavy Metals from Wood-Industrial Wastewater by Oil Palm Waste
Autorzy:
Ayob, Syafiqa
Othman, Norzila
Altowayti, Wahid Ali Hamood
Khalid, Faisal Sheikh
Bakar, Norshila Abu
Tahir, Muhammad
Soedjono, Eddy Setiadi
Powiązania:
https://bibliotekanauki.pl/articles/1839174.pdf
Data publikacji:
2021
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
industrial wastewater
heavy metal
adsorption
activated carbon
oil palm waste
Opis:
The use of heavy metals in the manufacturing industry over the past few decades has eventually contributed to a rise in the flow of metallic compounds into wastewater and has raised significant ecological and health threats to living things. Adsorption is an excellent way to treat solid waste effluent, offering significant benefits such as affordability, profitability, ease of operation and efficiency. However, the price of commercial adsorbent namely activated carbon has soared due to its high demand. There is also a green improvement in this method by turning the commercial adsorbent into agricultural waste. In Malaysia, the oil palm waste is such suitable material that can be utilized for making activated carbon, since they are ample and easy to find. Additionally, part of them is agricultural waste that cannot be consumed (i.e. leaves and fronds). Hence, this study aimed to analyse the potential of activated carbon from agricultural waste, namely oil palm waste, in reducing the levels of heavy metals in industrial wastewater.
Źródło:
Journal of Ecological Engineering; 2021, 22, 3; 249-265
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Utilization of Coal Fly Ash and Oil Palm Empty Fruit Bunch Compost to Improve the Uptake of Soil Phosphorus and Yield of Maize Grown on Ultisol
Autorzy:
Fahrunsyah, -
Kusuma, Zaenal
Prasetya, Budi
Handayanto, Eko
Powiązania:
https://bibliotekanauki.pl/articles/952381.pdf
Data publikacji:
2019
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
coal fly ash
maize
oil palm empty fruit bunch compost
P uptake
Ultisol
Opis:
The study aimed at elucidating the utilization of coal fly ash and oil palm empty fruit bunch compost to improve the soil phosphorus uptake and yield of maize grown on Ultisol. The investigation was carried out in a greenhouse. The treatments tested were a combination of four coal fly ash doses (0, 20, 40, and 80 t ha-1) and three doses of oil palm empty fruit bunch compost (0, 10, and 20 t ha-1). At 2, 4, 6 and 8 weeks after planting, plant height, leaf number and stem diameter were observed. At the time of harvest (10 weeks after planting), fresh and dry weights of cobs, roots, stem, leaves, and seeds, as well as P uptake on the plant tissues, were observed. The results showed that the application of coal fly ash and oil palm empty fruit bunch compost significantly increased the P uptake, growth and yield of maize. The combination of 80 t coal fly ash ha-1 with 20 t oil palm empty fruit bunch compost ha-1 resulted in the highest P uptake, growth and yield of maize. Compared to the control treatment, the increase in P uptake by maize, the fresh cob weight, the dry cob weight, the biomass dry weight, and the dry seed weight were 303.23%, 285.39%, 364.91%, 329.59% and 1,591.70%, respectively.
Źródło:
Journal of Ecological Engineering; 2019, 20, 6; 36-43
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Using of Oil Palm Empty Fruit Bunch Compost and Mycorrhizae Arbuscular for Improving the Fertility of Nickel Post-Mining Soil
Autorzy:
Neswati, Risma
Putra, Boby Dirgantara Hanafie
Jayadi, Muhammad
Ardiansyah, Andri
Powiązania:
https://bibliotekanauki.pl/articles/2027814.pdf
Data publikacji:
2022
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
post nickel mining soil
oil palm empty fruit bunch
mycorrhizae
compost
cover crops
Opis:
The nickel post-mining soil with an open-pit mining system has poor soil chemical and physical properties. Thus, it requires appropriate site-specific management so that it can be optimized as a plant cultivation area. This study aimed to analyze the effectiveness of compost from oil palm empty fruit bunches (OPEFB) and mycorrhizal vesicular-arbuscular (MVA) in improving soil fertility of nickel post-mining soil. This study was conducted using a randomized block trial design with 2 factors. The first factor is compost with 3 treatments, consisting of 5 $t•ha^{-1}$ (K1), 7.5 $t•ha^{-1}$ (K2), 10 $t•ha^{-1}$ (K3) and the second factor was mycorrhiza (M) in the fine-crushed brick carrier media with as many as 3 treatments consisting of 2 $t•ha^{-1}$ (M1), 4 $t•ha^{-1}$ (M2), 6 $t•ha^{-1}$ (M3). A total of 9 treatment combinations were repeated 3 times, arranged in experimental pots at the Experimental Farm of Hasanuddin University, South Sulawesi, Indonesia. The results showed that the compost and MVA treatments had a significant effect on increasing the average values of cation exchange capacity, organic carbon, available P2O5, calcium and magnesium exchangeable,as well as decreasing exchangeable aluminum and iron. The highest soil properties values were found in the combination of compost 10 $t•ha^{-1}$ (K3) and MVA 6 $t•ha^{-1}$ (M3). The application of compost from OPEFB combined with MVA significantly improved soil fertility, which was indicated by improving soil chemical and biological properties. The application of MVA at various doses had a significant effect on the dry weight, root length of Calopogonium mucunoides and increase the number of MVA spores in the soil.
Źródło:
Journal of Ecological Engineering; 2022, 23, 2; 86-96
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Optimization of Particle Size and Ramie Fiber Ratio on Hybrid Bio Panel Production from Oil Palm Trunk as Thermal Insulation Materials
Autorzy:
Mawardi, Indra
Nurdin
Fakhriza
Rizal, Samsul
Aprilia, Sri
Faisal, Muhammad
Jaya, Ramadhansyah Putra
Powiązania:
https://bibliotekanauki.pl/articles/2202371.pdf
Data publikacji:
2023
Wydawca:
Polskie Towarzystwo Inżynierii Ekologicznej
Tematy:
oil palm trunk
hybrid bio panel
thermal insulation
particle size
ramie fibre ratio
RSM
response surface methodology
Opis:
The abundant availability of waste oil palm trunks is one of the potential fibers for new thermal insulation materials. While focusing on the manufacturing of thermal insulation materials, the main points to be considered are particle size, reinforcement fiber ratio, and press durations, besides binders type and temperature. This study aimed to optimize the manufacturing process of hybrid bio panels based on oil palm trunks as thermal insulation material. The response surface methodology (RSM), with a Box-Behnken Design (BBD), was used to model and optimize the manufacturing process variables. A total of 17 hybrid bio panels were in operation and the independent variables used were particle size, ramie ratio, and press duration. The dependent variables were water absorption, thickness swelling, MOR, and thermal conductivity. The hybrid bio panel obtained under the optimum conditions was characterized by thermogravimetric analysis to observe thermal stability. On the basis of analysis of variance and the contour plot, it was discovered that the interaction between particle size and ramie fiber ratio was a significant variable to optimize hybrid bio panel manufacture. The thermal resistance and modulus of rupture of hybrid bio panels also improved with higher particle size and ramie fiber ratio. The optimum manufacturing process was obtained at OPT particle size of 0.248 mm, ramie fiber ratio of 19.775, and press duration of 25 min. This condition produces a thermal conductivity of 0.079 W/mK, modulus of rupture of 17.702 MPa, water absorption of 54.428%, and thickness swelling of 21.974%. In addition, the hybrid bio panel resulted in thermal stability of 341 °C.
Źródło:
Journal of Ecological Engineering; 2023, 24, 2; 39--49
2299-8993
Pojawia się w:
Journal of Ecological Engineering
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-8 z 8

    Ta witryna wykorzystuje pliki cookies do przechowywania informacji na Twoim komputerze. Pliki cookies stosujemy w celu świadczenia usług na najwyższym poziomie, w tym w sposób dostosowany do indywidualnych potrzeb. Korzystanie z witryny bez zmiany ustawień dotyczących cookies oznacza, że będą one zamieszczane w Twoim komputerze. W każdym momencie możesz dokonać zmiany ustawień dotyczących cookies