scholarly journals Application of Lignin as Adsorbent for Silver (Ag) and Copper (Cu) on Electroplating Waste in Kota Gede

2018 ◽  
Vol 4 (1) ◽  
pp. 1-7
Author(s):  
Nurcahyo Iman Prakoso
Keyword(s):  
Palm Oil ◽  
Contact Time ◽  
Oil Industry ◽  
The Other ◽  
Chemical Processing ◽  
Optimum Temperature ◽  
Mass Ratio ◽  
Temperature Variations ◽  
Adsorption Condition ◽  
C 50

Lignin was a component of wood and always eliminated by chemical processing in many industries. On the other hand, oil palm bunches were the waste of palm oil industry, where that also containing high lignin.This study used lignin from residual waste of palm oil industry as biomass to adsorb silver (Ag) and copper (Cu) metal that is contained in electroplating waste by looking at lignin mass ratio, temperature and time in order to obtain optimal adsorption condition. The mass variations used were 100 mg, 200 mg, 300 mg, 400 mg, and 500 mg. While for the variation of contact time were 2 hours, 3 hours, 4 hours, 5 hours, 6 hours. For temperature variations were 30 °C, 40 °C, 50 °C,   and  60 °C.The results showed that the most optimal lignin mass ratio in adsorbing silver and copper metals was 200 mg/ 50 mL. While the most optimal contact time were 4 hours for Ag and 2 hours for Cu. For the most optimum temperature in adsorbing Ag metal at 50 °C and for Cu metal at 30 °C.

scholarly journals Sugarcane Bagasse Biochar as a Solid Catalyst: From Literature Review of Heterogeneous Catalysts for Esterifications to the Experiments for Biodiesel Synthesis from Palm Oil Industry Waste Residue

2021 ◽  
Vol 6 (2) ◽  
pp. 337-352
Author(s):  
Arif Hidayat ◽  
Winarto Kurniawan ◽  
Hirofumi Hinode
Keyword(s):  
Sugarcane Bagasse ◽  
Palm Oil ◽  
Oil Industry ◽  
Biodiesel Production ◽  
Solid Catalyst ◽  
Esterification Reaction ◽  
Mass Ratio ◽  
Catalyst Amount ◽  
Industry Waste ◽  
Bagasse Biochar

In this study, the utilization of sugarcane bagasse biochar (SCBB) as a solid catalyst was investigated for biodiesel production from palm oil industry waste residue. The catalyst was synthesized by sulfonation of SCBB to attach sulfonate functional group. Several analyses such as Nitrogen Gas Sorption Analysis, acidity, Fourier Transform Infra-Red spectroscopy, and X-ray powder diffraction (XRD) were applied to determine the properties of SCBB catalyst. The SCBB catalysts were tested to esterify the palm oil industry waste residue which contains of Free Fatty Acids (FFAs). The SCBB catalyst activity test revealed that the variables including catalyst amount, methanol to PFAD mass ratio, and temperature influenced the FFAs conversion. The highest of FFAs of 86.1% was reached at reaction temperature of 65 °C with the PFAD to methanol mass ratio of 4:1, and catalyst amount of 5 wt.% PFAD. The E-R kinetic model as developed can be described the mechanism of esterification reaction

scholarly journals Kultivasi Budaya Pemuda Kubu dalam Hutan-hutan Dharmasraya Sumatera Barat

2020 ◽  
Vol 3 (1) ◽  
pp. 35-50
Author(s):  
Ahmad Arrozy ◽  
Nenan Angenani Titis ◽  
Fuji Riang Prastowo
Keyword(s):  
Palm Oil ◽  
Oil Palm ◽  
Shifting Cultivation ◽  
Oil Industry ◽  
The Other ◽  
Swidden Agriculture ◽  
Living Space ◽  
Cultural Research ◽  
West Sumatra ◽  
Place Of Origin

This study aims to describe changes in the culture of youth Kubu in Dharmasraya Forest, West Sumatra. Bulangan forest was a place of origin and home for the Kubu community. The expansion of the oil palm company againts Bulangan Forest caused the Kubu community to move to Padang Hilalang forest and started to develop shifting cultivation. Nomad tradition (Melangun) began to be replaced because of Kubu community loss forest as living space due to the palm oil industry mechanism. The results of the study showed that there was a change in the forests which were the native habitat of the Kubu community. It made communal compulsion that it was necessary to continue swidden agriculture.  The economic transactions with the other communities are one of the accesses of the Kubu youth to interact with the outside of the forest, but at the same time seize the continuity tradition and the living space the young Kubu. This cultural research uses observational data and grounded theory methods based on the conceptualization of anthropological Kubu pioneered by Gerard Persoon (1989).

Pemanfaatan Bentonit Teraktivasi Sebagai Penyerap Nitrogen pada Air Limbah Pabrik Kelapa Sawit

2019 ◽  
Vol 2 (2) ◽  
Author(s):  
Naswir, M ◽  
Susila Arita ◽  
Desfournatalia ◽  
Widi Hartati ◽  
Lusi Septiarini
Keyword(s):  
Nitrogen Content ◽  
Palm Oil ◽  
Contact Time ◽  
Oil Industry ◽  
Activated Bentonite ◽  
Industry Wastewater

Tujuan pada penelitian ini adalah melihat kemampuan bentonit yang sudah diaktivasi menyerap nitrogen yang berasal dari air limbah pabrik kelapa sawit. Sampling bentonit di peroleh dari daerah Sungai rengas Provinsi Jambi. Bentonit dihaluskan dan diaktivasi menggunakan larutan HCl 1,6 M. Pengukuran kandungan nitrogen menggunakan instrumet UVvis. Hasil penelitian menunjukkan bahwa bentonit sudah diaktivasi mempunyai kemampuan yang relatif sama kemampuannya dalam menyerap unsur nitrogen, dengan massa 1 gram  dan waktu kontak 90 menit daya setrap bentonit terhadap unsur nitrogen yang berasl dari air limbah   The aim of this research was to evaluate the profile of activated bentonite to adsorb the nitrogen that presence in the palm oil industry wastewater. Bentonite was collected from River Rengas, Jambi Province. Bentonite was milled and activated using 1.6 M solution of HCl. The nitrogen content was measured using UV-Vis. The result showed that during the 90 minutes of contact time, 1.0 gram of the activated bentonite was able to adsorb nitrogen from palm oil industry wastewaterup to 81.50%.

PEMETAAN TEKNOLOGI INDUSTRI KELAPA SAWIT NASIONAL DAN KEBIJAKAN PENGEMBANGANNYA

2013 ◽  
Vol 13 (1) ◽  
Author(s):  
Subiyanto Subiyanto
Keyword(s):  
Palm Oil ◽  
Government Policy ◽  
Value Chain ◽  
Raw Materials ◽  
Value Added ◽  
Oil Industry ◽  
Missing Value ◽  
Technology Capability ◽  
The Government

Palm oil industry in Indonesia has been growing rapidly. But, unfortunately the growth is only effective on upstream industry with low value products, such that potential downstream value added are not explored proportionally. The government is therefore in the process of developing an appropriate policy to strengthen the national palm oil downstream industry. This paper proposes that an approriate policy for developing palm oil downstream industry could be derived from the maps of value chain and existing technology capability of the industry. The result recommends that government policy should emphasize on the supply of raw materials, infrastructure and utilities, as well as developing the missing value chain industry, especially ethoxylation and sulfonation.

UV ability to inactivate microorganisms combined with factors affecting radiation

1997 ◽  
Vol 35 (11-12) ◽  
pp. 107-112 ◽  
Author(s):  
A. M. Shaban ◽  
G. E. El-Taweel ◽  
G. H. Ali
Keyword(s):  
Microbial Communities ◽  
Uv Radiation ◽  
Contact Time ◽  
Tap Water ◽  
Scenedesmus Obliquus ◽  
Morphological Characters ◽  
The Other ◽  
Bacterial Cells ◽  
Dark Repair ◽  
Nile Water

In the present study, the effect of UV radiation on the inactivation of a range of microorganisms was studied. Each organism was seeded into sterile tap water and exposed to UV in batch experiments with changing turbidities. In addition, the effect of UV on microbial communities in river Nile water was examined. It was found that 1min contact time (0.5L/min flow rate) was effective against vegetative cells levels almost reaching zero (except with Staphylococcus aureus). On the other hand, spore-forming bacteria, Candida albicans and coliphage were more resistant to UV. This contact time caused coenobia cells in single form with Scenedesmus obliquus while for Microcystis aeruginosa colonies broke into smaller groups. Exposure of Nile water microbial communities to UV showed that yeasts and Aeromonas survived better than the other organisms while in the phytoplankton partial fragmentation occurred in some algal groups. The protective effect of turbidity differed between organisms, with increased contact time under conditions of stable turbidity having no effect on the organisms. At 20 NTU the UV radiation had no effect on the morphological characters of algal cells. In reactivation experiments, it is clear that photoreactivation, and not dark repair, takes place with bacterial cells. Only coliphage had no photoreactivation and dark repair responses although with coliphage and host, both reactivation processes worked well. Moreover, the irradiated algae regained their normal shape after 3 days in suitable media and enough light.

scholarly journals The Connections between COVID-19 and the Energy Commodities Prices: Evidence through the Dynamic Time Warping Method

Energies ◽  
2021 ◽  
Vol 14 (13) ◽  
pp. 4024
Author(s):  
Krzysztof Dmytrów ◽  
Joanna Landmesser ◽  
Beata Bieszk-Stolorz
Keyword(s):  
Time Series ◽  
Palm Oil ◽  
Dynamic Time Warping ◽  
Global Economy ◽  
Price Change ◽  
Commodity Prices ◽  
The Other ◽  
Time Warping ◽  
Heating Oil ◽  
Dynamic Time

The main objective of the study is to assess the similarity between the time series of energy commodity prices and the time series of daily COVID-19 cases. The COVID-19 pandemic affects all aspects of the global economy. Although this impact is multifaceted, we assess the connections between the number of COVID-19 cases and the energy commodities sector. We analyse these connections by using the Dynamic Time Warping (DTW) method. On this basis, we calculate the similarity measure—the DTW distance between the time series—and use it to group the energy commodities according to their price change. Our analysis also includes finding the time shifts between daily COVID-19 cases and commodity prices in subperiods according to the chronology of the COVID-19 pandemic. Our findings are that commodities such as ULSD, heating oil, crude oil, and gasoline are weakly associated with COVID-19. On the other hand, natural gas, palm oil, CO2 allowances, and ethanol are strongly associated with the development of the pandemic.

VP39 The Alphabet Lottery? How NICE Outcomes Vary By Appraisal Committee

2019 ◽  
Vol 35 (S1) ◽  
pp. 86-86
Author(s):  
Richard Macaulay ◽  
Lok Wan Liu ◽  
Cornelia Roibu ◽  
Andrea Berardi
Keyword(s):  
Cost Effectiveness ◽  
The Other ◽  
Appraisal Committee ◽  
Technology Appraisal ◽  
The Public ◽  
Chi Squared ◽  
C 50 ◽  
To Receive ◽  
Disciplinary Group ◽  
53 C 55

IntroductionNICE (National Institute for Health and Care Excellence) makes recommendations on the public reimbursement of medicines based on their clinical- and cost-effectiveness. The recommendation is made by an Appraisal Committee (comprising a multi-disciplinary group of independent experts) as part of a technology appraisal. There are four Appraisal Committees (A,B,C,D); this research investigates whether appraisal outcomes vary by committee.MethodsAll publicly-available Final Appraisal Determinations from NICE Single Technology Appraisals (STA) were screened (01/10/2009-14/11/2018) and key data were extracted. Homogeneity in rates of acceptance or rejection across the committees was assessed using Chi-squared tests.ResultsThe Appraisal Committee was identified for 298 technologies, 56% (168/298) of which were ‘recommended’. The number of technologies assessed by each committee was similar (A:79, B:62, C:91, D:66). However, STAs conducted by Committee D were significantly less likely to receive ‘recommended’ outcomes (A:68% [54/79], B:65% [40/62], C:53% [48/91], D:39% [26/66]; p < 0.01). STAs for oncology indications had higher ’not recommended’ outcomes than those for non-oncology indications (25% vs. 9%). The lower ‘recommendation’ rates for committee D persisted across oncology (A:60%, B:83%, C:50%, D:38%; p = 0.01) and non-oncology indications (A:73%, B:53%, C:55%, D:40%; p < 0.01). However, STAs conducted by Committee D were significantly more likely to receive ‘optimized’ recommendations (A:16%, B:21%, C:33%, D: 36%; p < 0.01) and when considering the rates of ‘recommended’ and ‘optimized’ outcomes compared to ‘only in research’ and ‘not recommended’ outcomes, no significant differences were found (A:85%, B: 85%, C:86%, D:76%; p = 0.27).ConclusionsSTAs undertaken by NICE Appraisal Committee D was associated with a significantly lower rate of ‘recommended’ outcomes but tended to an ‘optimized’ recommendation significantly more than the other committees. Further research is needed to determine if this reflects any deviation in uniform implementation of NICE methodology between Committees.

Scrutinizing the Effect of Digital Mastery on Learning Agility in Palm Oil Industry

2021 ◽  
Author(s):  
Nopriadi Saputra ◽  
Harry Sutanto ◽  
Irvan Prama Defindal
Keyword(s):  
Palm Oil ◽  
Oil Industry ◽  
Learning Agility
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