Volatile fatty acid and biogas profile in the anaerobic degradation process of palm oil mill wastewater

2014 ◽  
Author(s):  
T.T. Teng ◽  
Y.S. Wong ◽  
S.A. Ong ◽  
N. Morad ◽  
M. Rafatullah
Keyword(s):  
Fatty Acid ◽  
Palm Oil ◽  
Anaerobic Degradation ◽  
Volatile Fatty Acid ◽  
Degradation Process ◽  
Palm Oil Mill

scholarly journals Pengaruh Laju Alir Terhadap COD, BOD dan VFA pada Pengolahan Limbah Cair Pabrik Kelapa Sawit (LCPKS) dalam Bioreaktor Anaerobik

2020 ◽  
Vol 4 (2) ◽  
pp. 30
Author(s):  
Elvania Br. Pandia ◽  
Hernawati Hernawati ◽  
Theresia Jari ◽  
Abdul Kahar
Keyword(s):  
Fatty Acid ◽  
Chemical Oxygen Demand ◽  
Palm Oil ◽  
Biochemical Oxygen Demand ◽  
Volatile Fatty Acid ◽  
Oxygen Demand ◽  
Palm Oil Mill Effluent ◽  
Palm Oil Mill

Limbah cair kelapa sawit atau Palm Oil Mill Effluent (POME) merupakan bahan yang dapat digunakan untuk memproduksi biogas menggunakan reaktor anaerobik. Dalam limbah cair kelapa sawit terdapat beberapa komponen penyusun yaitu Biochemical Oxygen Demand (BOD), Chemical Oxygen Demand (COD), dan Volatile Fatty Acid (VFA). Perubahan terhadap kandungan dalam limbah cair pabrik kelapa sawit (LCPKS) dipengaruhi oleh laju alir yang terjadi dalam bioreaktor anaerobik. Pada penelitian ini dilakukan variasi laju alir yaitu Q1 ambient 0 L/hari, Q2 6 L/hari, Q3 24 L/hari untuk mengetahui laju alir optimal dalam pengolahan LCPKS pada bioreaktor anaerobik. Pengamatan dilakukan secara rutin dan resirkulasi sampel POME dilakukan selama ± 6 jam/hari. Tujuan penelitian untuk mengetahui pengaruh laju alir terhadap perubahan kadar COD, BOD, dan VFA yang terkandung dalam LCPKS dengan menggunakan bioreaktor anaerobik. Hasil dari penelitian ini adalah laju alir optimal dalam penurunan kadar COD, BOD, dan VFA dalam LCPKS yaitu sebesar 24 L/menit, dimana semakin besar laju alir yang diberikan maka kadar penurunan COD dan BOD yang terkandung dalam limbah cair kelapa sawit akan semakin besar, hal tersebut juga berlaku pada pembentukan VFA pada limbah cair, hal ini disebabkan karena penambahan variasi laju alir dapat mempengaruhi proses degradasi bahan-bahan organik dalam limbah cair kelapa sawit. Kata Kunci : POME, laju alir, bioreaktor anaerobik, biogas, LCPKS.

scholarly journals Proses Peruraian Anaerobik Palm Oil Mill Effluent dengan Media Zeolit Termodifikasi

2019 ◽  
Vol 13 (1) ◽  
pp. 16
Author(s):  
Melly Mellyanawaty ◽  
Firda Mahira Alfiata Chusna ◽  
Estin Nofiyanti
Keyword(s):  
Fatty Acid ◽  
Anaerobic Digestion ◽  
Palm Oil ◽  
Volatile Fatty Acid ◽  
Oxygen Demand ◽  
Palm Oil Mill Effluent ◽  
Modified Zeolite ◽  
The Media ◽  
Soluble Chemical Oxygen Demand ◽  
Palm Oil Mill

A B S T R A C TThis work evaluated the effect of modified zeolite as microbial immobilization medium in anaerobic digestion of palm oil mill effluent (POME). The affinity of microorganisms to attach and grow on the media surface could be increased by the addition of micro-nutrient into the media. The effect of micro-nutrient addition was studied in 1000 mL Erlenmeyer flask as batch reactors. Experiments were conducted for 30 days. The concentration of soluble chemical oxygen demand (COD) in substrate was 8000 mg/L. Zeolite was impregnated with nickel (Ni) and zinc (Zn) at individual concentration of 2.7x10-3 mg Ni/g zeolite and 3.5x10‑3 mg Zn/g zeolite. The influence of each modified zeolite was determined by periodic measurement of sCOD, volatile fatty acid (VFA), pH, and biogas production. Cumulative biogas productions in this study were 252.44; 172.13; 57.70 ml from Ni-modified, Zn-modified and natural zeolites, respectively. The highest sCOD removal was obtained in reactor with Zn-modified zeolite with 38.22% removal, followed by 33.96% with Ni-modified zeolite, and 27.87% removal with natural zeolite.Keywords: anaerobic digestion; biogas; methane; palm oil mill effluent; zeoliteA B S T R A KPenelitian ini mengevaluasi pengaruh zeolit yang dimodifikasi sebagai media imobilisasi mikroorganisme pada proses anaerobik limbah palm oil mill effluent (POME). Afinitas mikroorganisme untuk melekat dan tumbuh di permukaan dapat meningkat dengan impregnasi mikronutrien pada media. Efek penambahan mikronutrien dipelajari dengan labu Erlenmeyer 1000 mL sebagai reaktor batch. Experimen dijalankan selama 30 hari. Konsentrasi soluble chemical oxygen demand (sCOD) substrat yang digunakan adalah 8000 mg/L. Zeolit terimpregnasi Ni dan Zn yang digunakan memiliki kadar 2,7 x10-3 mg Ni/g zeolit dan 3,5x10-3 mg Zn/g zeolit. Pengaruh setiap zeolit yang dimodifikasi dievaluasi dengan mengukur konsentrasi sCOD, volatile fatty acid (VFA), pH, dan produksi biogas secara periodik. Akumulasi biogas penelitian ini sebesar 252,44; 172,13; 57,70 ml berturut-turut untuk zeolit modifikasi Ni, zeolit modifikasi Zn dan zeolit alam. Penurunan sCOD terbaik dihasilkan oleh zeolit termodifikasi Zn dengan nilai 38,22%, selanjutnya diikuti oleh zeolit termodifikasi Ni dan zeolit alam dengan nilai 33,96% dan 27,87%.Kata kunci: anaerobic digestion; biogas; metana; palm oil mill effluent; zeolit

Enhanced Synthesis of Fatty-Acid Methyl Ester using Oil from Palm Oil Mill Effluents and Immobilized Palm Lipase

2018 ◽  
Vol 95 (11) ◽  
pp. 1373-1384 ◽  
Author(s):  
Nisa Paichid ◽  
Tewan Yunu ◽  
Sappasith Klomklao ◽  
Poonsuk Prasertsan ◽  
Kanokphorn Sangkharak
Keyword(s):  
Fatty Acid ◽  
Methyl Ester ◽  
Fatty Acid Methyl Ester ◽  
Palm Oil ◽  
Acid Methyl Ester ◽  
Acid Methyl ◽  
Palm Oil Mill

Start-Up Operation and Hydraulic Retention Time Selectivity for Palm Oil Mill Wastewater at Mesophilic Temperature in Anaerobic Suspended Growth Closed Bioreactor

2014 ◽  
Vol 955-959 ◽  
pp. 1330-1334
Author(s):  
Yee Shian Wong ◽  
Tjoon Tow Teng ◽  
Soon An Ong ◽  
Morad Norhashimah ◽  
Mohd Rafatullah
Keyword(s):  
Palm Oil ◽  
Retention Time ◽  
Anaerobic Degradation ◽  
Hydraulic Retention Time ◽  
Biogas Production ◽  
Oxygen Demand ◽  
Anaerobic Bioreactor ◽  
Start Up ◽  
Palm Oil Mill ◽  
Pome Wastewater

The start-up operation and hydraulic retention time (HRT) selectivity of anaerobic degradation for palm oil mill effluent (POME) wastewater was carried out in an anaerobic bioreactor. HRT between 35 and 5 days were investigated. The start-up process for the anaerobic degradation of POME wastewater was found to be completed after 40 days of operation. This study also recommended that the anaerobic degradation of POME wastewater should be operated at the HRT between 35 and 10 days without acid risk. The performance of anaerobic bioreactor could reach 90.55% - 87.55% chemical oxygen demand (COD) reduction, 0.06 - 0.40 ratio between volatile fatty acid (VFA) and alkalinity (Alk), -368.2 mV to-445.80 mV of oxygen reduction potential (ORP) and 9.08 - 37.2 liters of biogas production, respectively.

scholarly journals Esterification of Free Fatty Acid in Palm Oil Mill Effluent using Sulfated Carbon-Zeolite Composite Catalyst

2022 ◽  
Vol 30 (1) ◽  
pp. 377-395
Author(s):  
Hasanudin Hasanudin ◽  
Qodria Utami Putri ◽  
Tuty Emilia Agustina ◽  
Fitri Hadiah
Keyword(s):  
Fatty Acid ◽  
Reaction Time ◽  
Free Fatty Acid ◽  
Palm Oil ◽  
Acid Methyl Ester ◽  
Composite Catalyst ◽  
Esterification Reaction ◽  
Calculation Results ◽  
Palm Oil Mill ◽  
Zeolite Composite

Free fatty acid esterification (FFA) in palm oil mill waste (POME) was carried out using a sulfonated carbon-zeolite composite catalyst. The catalyst is synthesized with carbon precursor obtained from molasses, which is adsorbed on the surface of the zeolite and then carbonized and sulfonated with concentrated H2SO4 to form a sulfonated carbon-zeolite catalyst composite, which will be used for the esterification catalyst and the optimization process for the esterification reaction is carried out using the response surface methodology (RSM) and experimental central composite design (CCD). Importantly, the observed independent variables were temperature, catalyst weight, and reaction time to produce fatty acid methyl ester (FAME) products. The catalyst was successfully synthesized, which was shown from the SEM characterization strengthened by the presence of a sulfate group in the FTIR results and the calculation results of high acidity properties. Optimization of FFA esterification with SCZ catalyst obtained optimal conditions with a temperature of 79oC, a catalyst weight of 3.00 g, and a reaction time of 134 minutes with a FAME product of 93.75%, considering that the viscosity of biodiesel is below that required by the API.

Anaerobic degradation of palm oil mill effluent (POME)

2011 ◽  
Vol 64 (10) ◽  
pp. 2001-2008 ◽  
Author(s):  
W. Yoochatchaval ◽  
S. Kumakura ◽  
D. Tanikawa ◽  
T. Yamaguchi ◽  
M. F. M. Yunus ◽  
...  
Keyword(s):  
Palm Oil ◽  
Anaerobic Degradation ◽  
Denaturing Gradient Gel Electrophoresis ◽  
Enrichment Culture ◽  
Palm Oil Mill Effluent ◽  
Enrichment Cultures ◽  
Degrading Bacteria ◽  
Thermophilic Conditions ◽  
Gradient Gel Electrophoresis ◽  
Palm Oil Mill

The biodegradation characteristics of palm oil mill effluent (POME) and the related microbial community were studied in both actual sequential anaerobic ponds in Malaysia and enrichment cultures. The significant degradation of the POME was observed in the second pond, in which the temperature was 35–37 °C. In this pond, biodegradation of major long chain fatty acids (LCFA), such as palmitic acid (C16:0) and oleic acid (C18:1), was also confirmed. The enrichment culture experiment was conducted with different feeding substrates, i.e. POME, C16:0 and C18:1, at 35 °C. Good recovery of methane indicated biodegradation of feeds in the POME and C16:0 enrichments. The methane production rate of the C18:1 enrichment was slower than other substrates and inhibition of methanogenesis was frequently observed. Denaturing gradient gel electrophoresis (DGGE) analyses indicated the existence of LCFA-degrading bacteria, such as the genus Syntrophus and Syntorophomonas, in all enrichment cultures operated at 35 °C. Anaerobic degradation of the POME under mesophilic conditions was stably processed as compared with thermophilic conditions.

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