Influence of pre-treatment temperature of palm oil fuel ash on the properties and performance of green ceramic hollow fiber membranes towards oil/water separation application

2019 ◽  
Vol 222 ◽  
pp. 264-277 ◽  
Author(s):  
Zhong Sheng Tai ◽  
Siti Khadijah Hubadillah ◽  
Mohd Hafiz Dzarfan Othman ◽  
Mohd Irfan Hatim Mohamed Dzahir ◽  
Khong Nee Koo ◽  
...  
2015 ◽  
Vol 744-746 ◽  
pp. 1560-1565
Author(s):  
Abdulmalik Musa Maleka ◽  
Ahmed Wsoo Hamad ◽  
Ramadhansyah Putra Jaya

The Cantabro durability test is usually used for open graded asphalt mixtures and has seen little use with dense graded mixtures. This paper presents durability data from the Cantabro test for Palm oil fuel ash (POFA) modified dense graded asphaltic concrete AC 14. The nature and amount of filler in an asphaltic concrete mixes significantly affect its design and performance. POFA is an ash obtained from the burning of waste material generated from the production of crude palm oil which is of high quantity in Malaysia. A number of trial mixes were prepared using the Marshall Mix design procedure with 5% POFA and 1% Ordinary Portland Cement (OPC) as filler materials to arrive at asphalt concrete mixtures that fulfil the Marshall criteria. Cantabro durability test was used to measure the durability of the asphaltic concrete. The results show that Marshall stability, flow, stiffness and cantabro loss values shows general improvement for the POFA modified asphalt compared to the control specimens.


2018 ◽  
Vol 14 (4) ◽  
pp. 419-424 ◽  
Author(s):  
Zhong Sheng Tai ◽  
Mohd Hafiz Dzarfan Othman ◽  
Siti Khadijah Hubadillah ◽  
Ahmad Fauzi Ismail ◽  
Mukhlis A Rahman ◽  
...  

Ceramic membranes have been gaining so much interest for oily water separation due to their superior characteristics such as good anti-fouling property, superhydrophilic, as well as excellent thermal and chemical stabilities. However, ceramic membranes are very expensive which hinders their uses in large scale applications. Therefore, the aim of our study is to develop a low cost palm oil fuel ash (POFA) based ceramic hollow fiber ceramic membrane for oily water separation application. An asymmetric membrane structure consisting of sponge-like and macrovoid layers were acquired using a combined phase inversion and sintering technique. The membranes were sintered at different temperatures ranging from 1000 to 1150 °C. The sintered membranes were characterized in terms of morphology, mechanical strength, porosity, permeate flux and oil rejection performance. A high oil rejection efficiency of up to 96.0% was obtained for the membrane sintered at 1050 °C with the permeate flux of 185.42 L/m2h at the applied pressure of 3 bar. Based on the comparison with other ceramic membranes reported in the literature, it can be concluded that POFA based ceramic hollow fiber membrane showed a comparable performance and thus can be a promising low cost alternative ceramic membrane for oily water separation application.


2014 ◽  
Vol 587-589 ◽  
pp. 1270-1275 ◽  
Author(s):  
Abdulmalik Musa Maleka ◽  
Ibrahim Abubakar Alkali ◽  
Ramadhansyah Putra Jaya

The amount and nature of filler in asphaltic concrete mixes significantly affect its design and performance. The use of Palm oil fuel ash (POFA) as filler in asphaltic concrete has been studied with varying degree of success, this study therefore, evaluates the effect of POFA on the indirect tensile strength of asphaltic concrete AC 14. POFA was grained and passed through 75 μm sieve; a number of trial mixes were prepared using the Marshal Mix design procedure with 5% POFA to arrive at asphalt concrete mixtures that fulfill the Marshal criteria. The effects of POFA on stability, flow, stiffness and indirect tensile strength of asphaltic concrete (AC14) mixtures at their respective optimum binder content were evaluated. The results show that Marshall stability, flow, stiffness and indirect tensile strength values generally improved in the POFA modified mix compared with the control. POFA modified sample shows 16% improvement on the indirect tensile strength compared to the control.


2016 ◽  
Vol 9 (2) ◽  
pp. 120-128
Author(s):  
Haspiadi Haspiadi ◽  
Kurniawaty Kurniawaty

Research of  the utilization solid waste of palm oil fuel ash from boiler as row materials  for manufacturing light concrete brick has been conducted. The main objective of this study is to investigate the potential use solid waste of palm oil fuel ash from palm oil mill boilers as row materials for manufacturing light concrete brick has recently attracted for an alternative environmentally sustainable application. In this study, light concrete brick made with various proportions of palm oil fuel ash from palm oil mill boilers and sand were fabricated and studied under laboratory scales. Percentage of palm oil fuel ash of 0% as a control,  10%, 20%, 30%, 40%, 50%, 60%, replacement  sand, wheras others materials such as Portland cement, lime, gypsum, foaming agent and aluminium with the numbers constant. The quality of light concreate brick   were applied followed by the compressive strength test, density and water absorption capacity. The study discovered that the compressive strength for all composition meet the recommended value to light structural of 6.89 MPa as prescribed in SNI 03-3449-2002. In the same manner density of light concrete brick for all proportion under the maximum density recommended value of 1400 Kg/m3 according to SNI 03-3449-2002. While water absorption capacity of increased by the increasing use of ashes. Therefore, palm oil fuel ash from boiler can be used as raw material for the light concrete brick which is  environmental friendly because using solid waste and also an alternative handling solid waste.ABSTRAKPenelitian pemanfaatan limbah padat abu cangkang dan serat kelapa sawit dari boiler sebagai bahan baku pembuatan bata beton ringan telah dilakukan. Tujuan dari penelitian ini adalah pemanfaatan limbah padat abu boiler berbahan bakar cangkang dan serat sebagai bahan pembuatan bata beton ringan sebagai salah satu alternatif pengelolaan lingkungan yang bekelanjutan. Dalam penelitian ini, bata beton ringan dibuat dengan berbagai komposisi abu boiler dan pasir yang diproduksi dalam  skala laboratorium. Persentase dari abu berturut-turut 0% sebagai kontrol, 10%, 20%, 30%, 40%, 50% dan 60% mensubtitusi pasir, sedangkan bahan lain yaitu semen, kapur, gypsum,  foaming  agent serta aluminium pasta dengan jumlah tetap. Mutu bata beton ringan yang diujikan adalah kuat tekan, bobot jenis dan daya serap air. Hasil penelitian menunjukkan bahwa kuat tekan untuk semua komposisi memenuhi batas minimum yang dipersyaratkan untuk stuktural ringan yaitu 6,89 MPa sesuai SNI 03-3449-2002. Demikian pula bobot jenis dari bata ringan yang dihasilkan masih dibawah dari batas maksimum yang direkomendasikan SNI 03-3449-2002 yaitu maksimal 1400 Kg/m3. Sedangkan daya serap air mengalami kenaikan dengan naiknya jumlah abu yang digunakan . Limbah padat abu boiler berbahan bakar cangkang dan serat sawit dapat dimanfaatkan sebagai bahan baku pembuatan bata beton ringan yang ramah lingkungan dengan memanfaatkan limbah dan menjadi salah satu alternatif pengelolaan limbah. Kata kunci :  Abu cangkang kelapa sawit,  bata beton ringan, bobot jenis,  daya serap air,  limbah,  kuat tekan


2021 ◽  
Vol 1136 (1) ◽  
pp. 012046
Author(s):  
Bala Gopal Adapala ◽  
Durga Chaitanya Kumar Jagarapu ◽  
Syed Hamim Jeelani ◽  
B. Sarath Chandra Kumar ◽  
Arunakanthi Eluru

2019 ◽  
Author(s):  
Salahaldin M. A. Abuabdou ◽  
Ong Wei Teng ◽  
Mohammed J. K. Bashir ◽  
Ng Choon Aun ◽  
Sumathi Sethupathi

2011 ◽  
Vol 25 (11) ◽  
pp. 4287-4293 ◽  
Author(s):  
Chai Jaturapitakkul ◽  
Jatuphon Tangpagasit ◽  
Sawang Songmue ◽  
Kraiwood Kiattikomol

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