Kinetics Study of Membrane Anaerobic System (MAS) in Palm Oil Mill Effluent (POME) Treatment

2015 ◽  
Vol 12 (2) ◽  
pp. 53
Author(s):  
Abdurrahman Hamid Nour ◽  
Asdarina Yahya ◽  
Amirah N. F. S. ◽  
Siti Natrah Abdul Rahman ◽  
Norasmah Mohammed Manshor ◽  
...  

Increasing demands in palm oil industry resulting in the increase in production palm oil. It is then creating a major problem in disposing the waste to be treated in appropriate ways. The governments are forced to look for alternative technology for the palm oil mill effluent (POME) treatment because the demand of oil increases with the awareness on increasing environmental issue. Therefore, a new technology must be found in order to reduce energy consumption, to meet legal requirements on emission and for cost reduction and also increased quality of water treatment. Membrane Anaerobic System (MAS) is a promising alternative way to overcome these issues. In this study, the efficiency of the MAS performance increases to 99. 03% in ten days operation. The application of Monod, Contois and Chen & Hashimoto models were used to analyze the performance of MAS for treating POME. The results from the experiment show the substrate removal model is well fits for estimation of kinetics membrane anaerobic system. Amongst them, the Contois and Monod models predicted the bio-kinetic reactions of the MAS very well with coefficient of determination (R2>97%) values. The MAS bioreactor was created to be an improvement method as well as successful biological treatment since the graph shows linearized which is in good agreement with reported in literature.

2015 ◽  
Vol 12 (2) ◽  
pp. 53
Author(s):  
Abdurahman Hamid Nour ◽  
Asdarina Yahya ◽  
N. F. S. Amirah ◽  
Siti Natrah Abdul Rahman ◽  
Norasmah Mohammed Manshor ◽  
...  

Increasing demands in palm oil industry resulting in the increase in production palm oil. It is then creating a major problem in disposing the waste to be treated in appropriate ways. The governments are forced to look for alternative technology for the palm oil mill effluent (POME) treatment because the demand of oil increases with the awareness on increasing environmental issue. Therefore, a new technology must be found in order to reduce ene-rgy consumption, to meet legal requirements on emission and for cost reduction and also increased quality of water treatment. Membrane Anaerobic System (MAS) is a promising alternative way to overcome these issues. In this study, the efficiency of the MAS performance increases to 99.03% in ten days operation. The application of Monod, Contois and Chen & Hashimoto models were used to analyze the performance of MAS for treating POME. The results from the experiment show the substrate removal model is well fits for estimation of kinetics membrane anaerobic system. Amongst them, the Contois and Monod models predicted the bio-kinetic reactions of the MAS very well with coefficient of determination (R2>97%) values. The MAS bioreactor was created to be an improvement method as well as successful biological treatment since the graph shows linearized which is in good agreement with reported in literature.


2015 ◽  
Vol 76 (1) ◽  
Author(s):  
Norazwina Zainol ◽  
Siti Mazlifah Ismail

This study investigated the biological pH treatment of acidic palm oil mill effluent (POME). In this study soil mixed culture (SMC) was acclimatized for 10 days (30°C and 150 rpm) with POME and used as inoculum. Selected factors used in this study were reaction time (3-5 days), temperature (25-30 °C), agitation speed (150-180 rpm), soil to water ratio (1:1 and 1:3) and inoculum types (peat and alluvium inoculum). Response surface method (RSM) was used to design and analyzed experimental data. In this study reaction time gave highest contribution which was at 29.81%. Reaction time was important for microbial growth in biological pH treatment. Interaction between reaction time and agitation speed gave highest contribution which was at 17.21%. Agitation provides a proper mixing on acidic POME and SMC thus increased the microbial activities. In this study, analysis of variance (ANOVA) was used to analyze the experimental data and the coefficient of determination (R2) value of 0.8301 was obtained. This study had proven the application of RSM was useful in experimental data analysis and increased the pH value from 4 to 8.


2019 ◽  
Vol 20 (1) ◽  
pp. 143 ◽  
Author(s):  
Widiatmini Sih Winanti ◽  
Prasetiyadi Prasetiyadi ◽  
Wiharja Wiharja

ABSTRACTPalm Oil Mill wastewater or POME is currently not fully utilized. POME waste treatment generally uses covered lagoon technology using the anaerobic system, which generally operates well in neutral waste conditions with a pH of 7 and uses mesophilic processes at temperatures around 35oC. So it is necessary to cool down and neutralize before POME is fed to the reactor, by mixing it with POME which has been degraded inside the reactor, where the pH condition has to turn into a base. It is useful to ensure that the POME temperature before being fed into the reactor is near the ambient temperature and the acidity of POME is near neutral (pH = 7). POME treatment using a covered lagoon reactor usually need 30 days residence time. The Fixed Bed anaerobic reactor is capable to treat waste with a low pH waste, so POME which has a pH of 4 does not need to be neutralized before treating using Fixed Bed Reactor. This will simplify the processing process, reduce investment costs and operating costs. The purpose of this research is to process POME waste using an anaerobic type Fixed Bed reactor without neutralization stage. The method processing using Fixed Bed type reactor is divided into two stages of a process that is bacteria inoculation process and POME waste adaptation process. The results of the research can reduce the HRT to 2o days, with optimal POME feeding at 150 liters/day. The percentage of methane gas measured was 66%. The methane gas yield is 0.52 liters/gram of COD or greater than the results of using the covered lagoon, which is 0.35 liters/ gram COD.Key word: Palm Oil Mill Effluent (POME), anaerobic, Fixed Bed, biogas, neutralizationABSTRAKLimbah cair industri minyak kelapa sawit atau POME saat ini belum dimanfaatkan secara maksimal. Pengolahan limbah POME umumnya menggunakan teknologi covered lagoon dengan sistem anaerobik, dimana umumnya teknologi ini beroperasi baik pada kondisi limbah yang netral dengan pH 7 dan menggunakan proses mesopilik pada suhu sekitar 35oC.  Sehingga diperlukan tahap pendinginan dan tahap netralisasi terlebih dahulu sebelum POME diumpankan ke reaktor, yaitu dengan mencampurkannya dengan POME yang sudah terdegradasi di dalam reaktor, karena sifatnya  sudah berubah menjadi basa. Hal ini berguna untuk memastikan bahwa suhu POME sebelum masuk reaktor sudah mendekati suhu lingkungan dan tingkat keasaman POME sudah mendekati netral (pH =7). Pengolahan POME menggunakan covered lagoon umumnya memerlukan waktu tinggal di dalam reaktor(HRT) sekitar 30 hari. Reaktor anaerobik tipe Fixed Bed mampu mengolah limbah dengan pH rendah, sehingga POME yang mempunyai pH 4, tidak perlu dinetralkan terlebih dahulu. Hal ini akan menyederhanakan proses pengolahan, menurunkan biaya investasi dan biaya operasi. Tujuan penelitian ini adalah mengolah limbah POME dengan menggunakan reaktor anaerobik tipe Fixed Bed tanpa tahap proses netralisasi. Metode pengolahan anaerobik dengan menggunakan reaktor tipe Fixed Bed, terbagi menjadi dua tahapan proses yaitu proses inokulasi bakteri dan proses adaptasi limbah POME. Hasil penelitian dapat menurunkan HRT menjadi 20 hari, dengan pengumpanan POME optimal pada 150 liter/hari. Persentase gas metana adalah 66%. Hasil produksi gas metana adalah 0,52 liter/gram COD atau lebih besar dari hasil proses menggunakan covered lagoon, yaitu 0,35 liter/ gram COD.Kata Kunci: Palm Oil Mill Effluent (POME), anaerobik, Fixed Bed, biogas, netralisasi


Author(s):  
M S Hybat ◽  
N H Abdurahman ◽  
Z H Yasmeen ◽  
Z Jemaat ◽  
N H Azhari

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