Synthesis and performance analysis of oil palm ash (OPA) based adsorbent as a palm oil bleaching material

2016 ◽  
Vol 139 ◽  
pp. 1098-1104 ◽  
Author(s):  
Caleb Acquah ◽  
Lau Sie Yon ◽  
Zarina Tuah ◽  
Ngu Ling Ngee ◽  
Michael K. Danquah
Processes ◽  
2021 ◽  
Vol 9 (5) ◽  
pp. 878
Author(s):  
Apinya Singkhala ◽  
Chonticha Mamimin ◽  
Alissara Reungsang ◽  
Sompong O-Thong

A sudden pH drops always inhibits the anaerobic digestion (AD) reactor for biogas production from palm oil mill effluent (POME). The pH adjustment of POME by oil palm ash addition and the biogas effluent recycling effect on the preventing of pH drop and change of the archaea community was investigated. The pH adjustment of POME to 7.5 increased the methane yield two times more than raw POME (pH 4.3). The optimal dose for pH adjustment by oil palm ash addition was 5% w/v with a methane yield of 440 mL-CH4/gVS. The optimal dose for pH adjustment by biogas effluent recycling was 20% v/v with a methane yield of 351 mL-CH4/gVS. Methane production from POME in a continuous reactor with pH adjustment by 5% w/v oil palm ash and 20% v/v biogas effluent recycling was 19.1 ± 0.25 and 13.8 ± 0.3 m3 CH4/m3-POME, respectively. The pH adjustment by oil palm ash enhanced methane production for the long-term operation with the stability of pH, alkalinity, and archaea community. Oil palm ash increased the number of Methanosarcina mazei and Methanothermobacter defluvii. Oil palm ash is a cost-effective alkali material as a source of buffer and trace metals for preventing the pH drop and the increased methanogen population in the AD process.


2018 ◽  
Vol 52 ◽  
pp. 00016
Author(s):  
Ernawati Hamid ◽  
Zakky Fathoni ◽  
Mirawati Yanita

Partnership is a business strategy that performed by two or more parties in a certain period to obtain the benefits together with the principle of mutual need and mutual rearing. The study aims to observe and assess the implementation of the oil palm agribusiness partnerships and analyze the level of farmers’ income. This research used a survey method. Descriptive analysis is used in data analysis, to provide an overview of the implementation of partnerships applied by oil palm plantation companies in Jambi Province. The results showed that agribusiness partnerships that implemented by the palm oil company basically has managed to create independent farmers who can canalize the aspirations of farmers, both in KKPA and PIR Trans pattern. Empirically, the maximum value and benefit aspects of process management partnerships as an indicator of the level of performance partnerships oil palm plantation companies in Jambi Province is quite high, has reached 82.5%. But these facts have not been fully supported by a partnership of cooperation actors, in the sense that the level of achievement of the implementation aspects of the value of partnership firm activities and performance of oil palm plantations has reached approximately 71%


2012 ◽  
Vol 512-515 ◽  
pp. 1941-1944 ◽  
Author(s):  
Hasnain Abdullah ◽  
Asmalia Zanal ◽  
Mohd Nasir Taib ◽  
Ida Rahayu Mohamed Noordin ◽  
Wan Khairuddin bin Wan Ali ◽  
...  

The most important part to be highlighted in developing a reliable microwave absorber is the material used to fabricate the absorber. As an alternative in managing the increase of the oil palm residues throughout the country, this study is focusing on developing a microwave absorber coating using oil palm fly ash. The software uses for design and simulation of microwave absorber is CST Microwave Studio (CST MWS) which enables the fast and accurate analysis of high frequency devices. The simulation design is fabricated to a number of layers which is coated by oil palm ash as a lossy element. The measurement and performance are carried out in the high broadband frequency of 8 to 12 GHz (X-band).


2015 ◽  
Vol 754-755 ◽  
pp. 1035-1039
Author(s):  
Che Pa Faizul ◽  
Chik Abdullah ◽  
Bari Fazlul

In this study, the ability of treated oil palm ash aided with kaolin powder to produce zeolites is studied. The use of treated oil palm ash in the zeolites conversion seems to be an option for waste materials management. Characterization of treated oil palm ash from Malaysia’s palm oil plantation has been acquitted. The treated oil palm ash and kaolin powder are used as the starting material for the synthesis of zeolites materials. The method chose for the zeolites conversion is alkaline hydrothermal treatment. The chemical composition, crystalline phases and elemental composition of treated oil palm ash and as-synthesized samples were characterized and studied. From the analysis, the treated oil palm ash was a fertile source of silica and exists as quartz phase. The outcomes have significant motivation for the production of zeolites by using low cost material such as treated oil palm ash.


2017 ◽  
Vol 2 (1) ◽  
pp. 20
Author(s):  
Wiwin Alawiyah ◽  
Nida Kemala ◽  
Mas'ud .

AbstractThe purpose of this research is to see the relation of farmer’s perception with the marketing behavior of palm oil  to “KUD Dharma Bakti.The research was conducted in Tebo Jaya Village, due to the reason that  this location  shows that most of society take a livelihood as oil palm farmers. The number of samples are 57 farmers. The research data were descriptif analyzed to find out the people's perception and sales behavior in the community in Tebo Jaya Village. Statistical analysis used is Chi Square test to test the relation of farmer’s perception with palm oil mareting behavior. The results showed: 1) perception of farmers toward to the benefits and performance of the cooperation showed that there are 61.40% has a good, category, while 38.60% are not good category. 2) The behavior of palm oil marketing to the kooperation showed 68.42% as high category while 31.58% have low behavior category. 3) There is no significant correlation between perception of farmer perception and the behavior of palm oil marketing in Tebo Jaya Village.Keyword: Perception, Behavior, Kooperation. AbstrakTujuan dari penelitian ini untuk melihat adanya kaitan persepsi masyarakat tani dengan perilaku penjualan kelapa sawit ke KUD Dharma Bakti di Desa Tebo Jaya Kecamatan Limbur Lubuk Mengkuang Kabupaten Muaro Bungo . Penelitian dilaksanakan di Desa Tebo Jaya, dengan alasan pemilihan lokasi karena Desa Tebo Jaya merupakan salah satu desa yang sebagian besar masyarakatnya bermata pencarian sebagai petani kelapa sawit. Jumlah sampel penelitian sebanyak 57 RTP. Data penelitian dianalisis secara deskriptif dan  untuk mengetahui hubungan antara persepsi masyarakat tani dan perilaku penjualan digunakan analisis statistik yaitu uji Chi Square. Hasil penelitian menunjukkan : 1) gambaran persepsi petani dilihat dari manfaat dan kinerja KUD, yang menunjukkan baik (61,40%) sedangkan (38,60%) masyarakat tani menyatakan kurang baik. 2) Gambaran penilaian perilaku penjualan kelapa sawit dilihat dari tinggi rendahnya frekuensi penjualan kelapa sawit ke KUD yang menunjukkan tinggi (68,42%) sedangkan 31,58% memiliki perilaku penjualan rendah terhadap KUD. 3) Tidak adanya hubungan yang signifikan antara persepsi masyarakat tani dengan perilaku penjualan kelapa sawit di Desa Tebo Jaya yang dinyatakan dengan  ᵪ²hitung (1,22) lebih kecil dari ᵪ² tabel (3,841) dengan taraf signifikan sebesar 5%.Kata Kunci :   Persepsi, Perilaku dan KUD


2018 ◽  
Vol 250 ◽  
pp. 05004
Author(s):  
Mazlina Musa ◽  
Azree Othuman Mydin ◽  
Abdul Naser Abdul Ghani

As Malaysia currently heading to biotechnology hub, it is expected that billions tons of palm oil by-products will be produced annually and normally been treated as waste disposal. A large amount of agricultural waste produced in the processing of palm oil is one of the main contributors to the environmental problem. This paper presents an experimental study on the development of the lightweight foamcrete with the inclusion of raw oil palm empty fruit bunch (EFB) fiber. EFB fiber has potential to be developed as alternative fibers in fiber reinforcing concrete. The study was focused on 4 mechanical property parameters which were axial compressive strength, flexural strength, splitting tensile strength and performance index. Three densities of lightweight foamcrete of 800, 1100 and 1400 kg/m3 were cast and tested. The ratio of cement, sand and water used in this study was 1:1.5:0.45. EFB fibers were used as additives at 0.15%, 0.30%, 0.45%, 0.60% and 0.75% by volume of the total mix. The results obtained from the experiments had indicated that the flexural strength of foamcrete reinforced with raw oil palm EFB fiber at different percentages for 800, 1100 and 1400kg/m3 densities correspondingly. For all densities, 0.45% EFB fiber reinforced foamcrete contributed to highest flexural strength. Same pattern can be observed on the compressive and splitting tensile strengths. EFB fiber aid in precluding the promulgation of cracks in the plastic state when load was applied. When the lightweight foamed concrete expands under axial compression and splitting tensile loads which will lead to cracking, the crack has a restricted distance over which it can spread before reaching the EFB fiber, preventing the crack from growing further. EFB fibers which were randomly dispersed in the mix provide three dimension reinforcement compared to the traditional rebar which provides two dimension reinforcement.


2019 ◽  
Vol 58 (1) ◽  
pp. 195-200 ◽  
Author(s):  
Nurdin Bukit ◽  
Eva M. Ginting ◽  
Eveb A. Hutagalung ◽  
Elfariska Sidebang ◽  
Erna Frida ◽  
...  

Abstract This study aims to determine the characteristics of oil palm boiler ash (OPBA) after processing with ball mill and coprecipitation methods. The method used is OPBA from a palm oil mill, processed using a ball mill for 1 hour at a speed of 250 rpm. Then prepared with the coprecipitation method by dissolving it in 2M HCl solution and NaOH solution with variations (2; 2.5; 3) M. Particles were characterized by XRD, SEM, XRF, and FTIR. XRD characterization shows the size of each crystal (83,79; 72,30 and 56,31) nm, with trigonal crystal structure with the SiO2 phase. SEM shows a homogeneous mixture. EDX shows the biggest elements are Si, O and C content. XRF shows the amount of silica is 31.45%. FTIR shows absorption peaks which are the characters of molecular vibrations of the sample.


2021 ◽  
Vol 223 ◽  
pp. 106996
Author(s):  
Chao Jin ◽  
Xin Liu ◽  
Tianyun Sun ◽  
Jeffrey Dankwa Ampah ◽  
Zhenlong Geng ◽  
...  

PeerJ ◽  
2021 ◽  
Vol 9 ◽  
pp. e10592
Author(s):  
Nantharat Wongfaed ◽  
Prawit Kongjan ◽  
Wantanasak Suksong ◽  
Poonsuk Prasertsan ◽  
Sompong O-Thong

Background Full-scale biogas production from palm oil mill effluent (POME) was inhibited by low pH and highly volatile fatty acid (VFA) accumulation. Three strategies were investigated for recovering the anaerobic digestion (AD) imbalance on biogas production, namely the dilution method (tap water vs. biogas effluent), pH adjustment method (NaOH, NaHCO3, Ca(OH)2, oil palm ash), and bioaugmentation (active methane-producing sludge) method. The highly economical and feasible method was selected and validated in a full-scale application. Results The inhibited sludge from a full-scale biogas reactor could be recovered within 30–36 days by employing various strategies. Dilution of the inhibited sludge with biogas effluent at a ratio of 8:2, pH adjustment with 0.14% w/v NaOH, and 8.0% w/v oil palm ash were considered to be more economically feasible than other strategies tested (dilution with tap water, or pH adjustment with 0.50% w/v Ca(OH)2, or 1.25% NaHCO3 and bioaugmentation) with a recovery time of 30–36 days. The recovered biogas reactor exhibited a 35–83% higher methane yield than self-recovery, with a significantly increased hydrolysis constant (kH) and specific methanogenic activity (SMA). The population of Clostridium sp., Bacillus sp., and Methanosarcina sp. increased in the recovered sludge. The imbalanced full-scale hybrid cover lagoon reactor was recovered within 15 days by dilution with biogas effluent at a ratio of 8:2 and a better result than the lab-scale test (36 days). Conclusion Dilution of the inhibited sludge with biogas effluent could recover the imbalance of the full-scale POME-biogas reactor with economically feasible and high biogas production performance.


Agric ◽  
2020 ◽  
Vol 32 (1) ◽  
pp. 13-28
Author(s):  
Era Impiani ◽  
Reswita Reswita ◽  
Ketut Sukiyono

This research  aims to identify service attributes based on the level of importance and performance according to palm oil farmers, knowing the level of satisfaction of oil palm farmers on the services that have been carried out by market institutions, knowing the level of satisfaction of oil Palm Farmers to the services carried out by Palm Oil Mill in Penarik District, Mukomuko Regency. This research was conducted in August 2018 on 80 respondents, namely 75 farmers and 5 marketing institutions. Research location determinedby using the two stage cluster sampling method. The data analysis methods used are Descriptive Analysis, Importance Performance Analysis (IPA), and the Customer Satisfaction Index (CSI). The result is that the service attributes that need to be improved by marketing institutions are the appropriate prices, time to pay, accuracy of weighing and honesty in service. Then the attributes that need to be improved in Palm Oil Mill are prices that match the accuracy of weighing and honesty in service. CSI values ​​on farmer respondents to marketing institutions were 74.67% and CSI values ​​on farmer respondents to Palm Oil Mill were 79.09%. Overall the level of satisfaction of oil palm farmers towards toke marketing services and PKS services is in the Satisfied category. The level of satisfaction to the MCC service is satisfied with the CSI index of 68.05%. Keywords: Oil Palm Farmers, Marketing, IPA, CSI, Satisfaction.


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