Palm oil mill effluent treatment by anaerobic baffled reactors: recycle effects and biokinetic parameters

1996 ◽  
Vol 34 (11) ◽  
pp. 59-66 ◽  
Author(s):  
Tjandra Setiadi ◽  
Husaini ◽  
Asis Djajadiningrat
Keyword(s):  
Palm Oil ◽  
Good Accuracy ◽  
Current System ◽  
Effective Means ◽  
Effluent Treatment ◽  
System A ◽  
Recycle Ratio ◽  
Palm Oil Mill ◽  
Biokinetic Parameters ◽  
Recycle Rate

In this study, the effects of recycle on anaerobic baffled reactor performances in treating palm oil mill effluents were investigated and biokinetic parameters were also determined. Recycle-ratio effect studies were carried out at the average loading rate of 15.6 g COD/l/d with the recycle rate varied from 5 to 25 times of the fresh-feed rate. The study shows that in the current system, a recycle of more than 15 times is needed to maintain the system pH higher than 6.8 without alkalinity supplementation, and the imposition of recycle is an effective means to reduce alkalinity requirements. Moreover, the kinetic model for substrate utilization and methane production proposed by Bathakur et al. (1991) was able to show the domination of certain culture in anaerobic processes. The model was also found to predict the experimental data of the present study with good accuracy.

Cultivation and application of Scenedesmus sp. strain UKM9 in palm oil mill effluent treatment for enhanced nutrient removal

2021 ◽  
Vol 294 ◽  
pp. 126295
Author(s):  
Ainil Farhan Mohd Udaiyappan ◽  
Hassimi Abu Hasan ◽  
Mohd Sobri Takriff ◽  
Siti Rozaimah Sheikh Abdullah ◽  
Nazlina Haiza Mohd Yasin ◽  
...  
Keyword(s):  
Palm Oil ◽  
Nutrient Removal ◽  
Effluent Treatment ◽  
Palm Oil Mill Effluent ◽  
Palm Oil Mill

Comparative study on structural modification ofCeiba pentandrafor oil sorption and palm oil mill effluent treatment

2014 ◽  
Vol 54 (11) ◽  
pp. 3044-3053 ◽  
Author(s):  
M.A. Abdullah ◽  
M. Afzaal ◽  
Z. Ismail ◽  
A. Ahmad ◽  
M.S. Nazir ◽  
...  
Keyword(s):  
Comparative Study ◽  
Palm Oil ◽  
Structural Modification ◽  
Effluent Treatment ◽  
Palm Oil Mill Effluent ◽  
Oil Sorption ◽  
Palm Oil Mill

Effect of Different Mediators on Bio-Energy Generation and Palm Oil Mill Effluent Treatment in an Air-Cathode Microbial Fuel Cell-Adsorption System

2021 ◽  
Vol 411 ◽  
pp. 67-78
Author(s):  
Ivy Ai Wei Tan ◽  
J.R. Selvanathan ◽  
M.O. Abdullah ◽  
N. Abdul Wahab ◽  
D. Kanakaraju
Keyword(s):  
Fuel Cell ◽  
Microbial Fuel Cell ◽  
Palm Oil ◽  
Oxygen Demand ◽  
Energy Generation ◽  
Effluent Treatment ◽  
Palm Oil Mill Effluent ◽  
Adsorption System ◽  
Air Cathode ◽  
Palm Oil Mill

Palm oil mill effluent (POME) discharged without treatment into watercourses can pollute the water source. Microbial fuel cell (MFC) has gained high attention as a green technology of converting organic wastewater into bio-energy. As an approach to overcome the limitations of the existing POME treatment methods, air-cathode MFC-Adsorption system is introduced as an innovative technology to treat POME and generate bio-electricity simultaneously. However, the use of conventional MFC with proton exchange membrane in large scale applications is restricted by the high cost and low power generation. Addition of mediator in MFC is essential in order to increase the electron transfer efficiency, hence enhancing the system performance. This study therefore aims to investigate the effect of different type of mediators i.e. congo red (CR), crystal violet (CV) and methylene blue (MB) on the performance of an affordable air-cathode MFC-Adsorption system made from earthen pot with POME as the substrate. The addition of different mediators altered the pH of the MFC-Adsorption system, in which more alkaline system showed better performance. The voltage generated in the system with CR, CV and MB mediator was 120.58 mV, 168.63 mV and 189.25 mV whereas the current generated was 2.41 mA, 3.37 mA and 3.79 mA, respectively. The power density of 290.79 mW/m3, 568.72 mW/m3 and 716.31 mW/m3 was produced in the MFC-Adsorption system with CR, CV and MB mediator, respectively. The highest POME treatment efficiency was achieved in MFC-Adsorption system with MB mediator, which resulted in biochemical oxygen demand, chemical oxygen demand, total suspended solids, turbidity and ammoniacal nitrogen removal of 75.3%, 84.8%, 91.5%, 86.1% and 23.31%, respectively. Overall, the air-cathode MFC-Adsorption system with addition of MB mediator was feasible for POME treatment and simultaneous bio-energy generation.

scholarly journals Investigation of Three Pre-treatment Methods Prior to Nanofiltration Membrane for Palm Oil Mill Effluent Treatment

2015 ◽  
Vol 44 (3) ◽  
pp. 421-427 ◽  
Author(s):  
Muhammad Said ◽  
Abdul Wahab Mohammad ◽  
Mohd Tusirin Mohd Nor ◽  
Siti Rozimah Sheikh Abdullah ◽  
Hassimi Abu Hasan
Keyword(s):  
Palm Oil ◽  
Effluent Treatment ◽  
Palm Oil Mill Effluent ◽  
Nanofiltration Membrane ◽  
Treatment Methods ◽  
Palm Oil Mill ◽  
Pre Treatment

scholarly journals The Effectiveness of Gas Recovery Systems for Managing Odour from Conventional Effluent Treatment Ponds in Palm Oil Mills in Malaysia

2019 ◽  
Vol 29 (3) ◽  
pp. 70-85
Author(s):  
Andrew Yap Kian Chung ◽  
Nastaein Qamaruz Zaman ◽  
Nurashikin Yaacof ◽  
Syafinah Yusoff ◽  
Fatah Yah Abd. Manaf ◽  
...  
Keyword(s):  
Greenhouse Gas Emissions ◽  
Greenhouse Gas ◽  
Palm Oil ◽  
Management Strategy ◽  
Ambient Air ◽  
Effluent Treatment ◽  
Cooling Pond ◽  
Gas Recovery ◽  
Weak Intensity ◽  
Palm Oil Mill

Abstract Gas recovery systems at palm oil mills enable the curtailment of uncontrolled greenhouse gas emissions from open anaerobic pond, but can also reduce odour, an aspect which has not yet been substantiated. The objective of this study is to evaluate the odour emission from palm oil mill effluent and the effectiveness of covers and tank digester in reducing odour emission from the open lagoons. Odour samples were obtained from the cooling ponds in conjunction with in-field odour assessment performed on site. Results demonstrated that odour released from open ponding or covered lagoon were almost comparable, ranging from 33,150 – 162,000 OU/m3, and 68,705 – 102,000 OU/m3, respectively. In contrast, odour emission from cooling pond which used tank digester system seemed markedly lower, ranging between 13,000 – 76,000 OU/m3. In fact, the analysis of ambient air close to anaerobic tank digesters proved a reduction of odour emission to the surroundings (with 3.5 OU/m3, weak intensity) compared to open pond (with 2700 OU/m3, strong intensity) or covered lagoon (with 111 OU/m3, distinct intensity). In conclusion, gas recovery systems at palm oil mills should be promoted not only towards the management of greenhouse gaseous, but also as an odour impact management strategy.

Palm Oil Mill Effluent Treatment Using Electrocoagulation-Adsorption Hybrid Process

2020 ◽  
Vol 997 ◽  
pp. 139-149
Author(s):  
Yong Yin Sia ◽  
Ivy Ai Wei Tan ◽  
Mohammad Omar Abdullah
Keyword(s):  
Palm Oil ◽  
Alternative Treatment ◽  
Oxygen Demand ◽  
Total Suspended Solid ◽  
Suspended Solid ◽  
Effluent Treatment ◽  
Palm Oil Mill Effluent ◽  
Hybrid Process ◽  
Multi Stage ◽  
Palm Oil Mill

Palm oil processing is a multi-stage operation which generates large amount of palm oil mill effluent (POME). Due to its potential to cause environmental pollution, POME must be treated prior to discharge. Electrocoagulation (EC), adsorption (AD), combined EC and AD, and EC integrated with AD have demonstrated great potential to remove various organic and inorganic pollutants from wastewater. Up to date, no study has been found on POME treatment using EC-AD hybrid process. Therefore, this study aims to investigate the feasibility of applying EC-AD hybrid process as an alternative treatment for POME. The EC-AD hybrid process achieved higher removal of total suspended solid (TSS), chemical oxygen demand (COD) and colour as compared to EC and AD stand-alone processes. The EC-AD hybrid process reduced 79% of TSS, 44% of COD and 89% of colour from POME. The adsorption kinetics of TSS, COD and colour were best interpreted using pseudo-second-order model, which indicated that the adsorption rate was mainly controlled by chemisorption. Overall, the EC-AD hybrid process could be recommended as an alternative treatment for POME.

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