Enhancement of methane production from high solid anaerobic digestion of pretreated palm oil decanter cake using a modified solid inclined reactor

2019 ◽  
Vol 95 (3) ◽  
pp. 781-790 ◽  
Author(s):  
Heryadi Eko ◽  
Pawinee Chaiprasert
Keyword(s):  
Anaerobic Digestion ◽  
Palm Oil ◽  
Methane Production ◽  
High Solid ◽  
Decanter Cake ◽  
Palm Oil Decanter Cake

Anaerobic degradation of palm oil mill effluent with aluminum bauxite residue for methane production

2020 ◽  
pp. 0958305X2092312
Author(s):  
Anwar Ahmad ◽  
Salam S AlDawey ◽  
SS Reddy
Keyword(s):  
Anaerobic Digestion ◽  
Palm Oil ◽  
Methane Production ◽  
Bauxite Residue ◽  
Oxygen Demand ◽  
Palm Oil Mill Effluent ◽  
Methane Yield ◽  
Yield Coefficient ◽  
Methanogenic Activity ◽  
Palm Oil Mill

Experimental study of the anaerobic digestion of palm oil mill effluent (POME) was carried out in an anaerobic upflow sludge blanket reactor (UASBR) with bauxite residue. The production rate of methane 114 L/gCOD/d and CH4 concentration was 205 L gCOD/d at 8.5 g/L of bauxite residue in UASBR. The results showed that the highest methane yield was 37.5 L gCODadded/h; CO2 reduction 1.5 L gCODadded and chemical oxygen demand (COD) removal reached 98.3% at 8.5 g/L of bauxite residue, respectively. The results the best by the modified kinetic model and Umax was 100 mg/L. The kinetic of methane production was also studied. The methane yield coefficient, YM, was 0.69 L CH4/gCODremoved. Anaerobic digestion of acetate was the dominant soluble metabolites in development and specific methanogenic activity results showed that high observed between stoichiometric and experimental higher methane production.

Effect of concentrate mixtures containing palm oil decanter cake on nutrient utilization in lambs

2021 ◽  
Vol 27 (2) ◽  
pp. 178-182
Author(s):  
D. Devika ◽  
K. Raja Kishore ◽  
D. Srinivas Kumar ◽  
Ch. Venkata Seshaiah
Keyword(s):  
Palm Oil ◽  
Nutrient Utilization ◽  
Decanter Cake ◽  
Palm Oil Decanter Cake

High-solid anaerobic digestion of corn straw for methane production and pretreatment of bio-briquette

2018 ◽  
Vol 250 ◽  
pp. 741-749 ◽  
Author(s):  
Yeqing Li ◽  
Fang Yan ◽  
Tao Li ◽  
Ying Zhou ◽  
Hao Jiang ◽  
...  
Keyword(s):  
Anaerobic Digestion ◽  
Methane Production ◽  
Corn Straw ◽  
High Solid

scholarly journals Biogas Production from Oil Palm Empty Fruit Bunches and Palm Oil Decanter Cake using Solid-State Anaerobic co-Digestion

Energies ◽  
2019 ◽  
Vol 12 (22) ◽  
pp. 4368
Author(s):  
Muthita Tepsour ◽  
Nikannapas Usmanbaha ◽  
Thiwa Rattanaya ◽  
Rattana Jariyaboon ◽  
Sompong O-Thong ◽  
...  
Keyword(s):  
Solid State ◽  
Palm Oil ◽  
Oil Palm ◽  
Biogas Production ◽  
C:N Ratio ◽  
Total Solid ◽  
Order Kinetic ◽  
Empty Fruit Bunches ◽  
Decanter Cake ◽  
Palm Oil Decanter Cake

Oil palm empty fruit bunches (EFB) and palm oil decanter cake (DC) were used to investigate biogas production by using solid-state anaerobic co-digestion (SS-AcoD) with 15% total solid (TS) content. Solid state anaerobic digestion (SS-AD) using substrate to inoculum (S:I) ratio of 3:1, methane yields of 353.0 mL-CH4/g-VS and 101.5 mL-CH4/g-VS were respectively achieved from mono-digestion of EFB without oil palm ash (OPA) addition and of DC with 10% OPA addition under mesophilic conditions 35 °C. By adding 5% OPA to SS-AD using 3:1 S:I ratio under thermophilic conditions (55 °C), mono-digestion of EFB and DC provided methane yields of 365.0 and 160.3 mL-CH4/g-VS, respectively. Furthermore, SS-AcoD of EFB:DC at 1:1 mixing ratio (volatile solid, VS basis), corresponding to carbon to nitrogen (C:N) ratio of 32, gathering with S:I ratio of 3:1 and 5% ash addition, synergistic effect is observed together with similar methane yields of 414.4 and 399.3 mL-CH4/g-VS, achieved under 35 °C and 55 °C, respectively. According to first order kinetic analysis under synergistic condition, methane production rate from thermophilic operation is 5 times higher than that from mesophilic operation. Therefore, SS-AcoD could be potentially beneficial to generate biogas from EFB and DC.

scholarly journals Evaluation of moderate temperature thermal pretreatment effects on the high-solid anaerobic digestion of OFMSW

2021 ◽  
Author(s):  
Masoud Kamali ◽  
Reza Abdi ◽  
Abbas Rohani ◽  
Shamsollah Abdollahpor ◽  
Sirous Ebrahimi
Keyword(s):  
Anaerobic Digestion ◽  
Energy Balance ◽  
Methane Production ◽  
Moderate Temperature ◽  
Positive Energy ◽  
Net Energy ◽  
Thermal Pretreatment ◽  
High Solid ◽  
Randomized Design ◽  
Methane Enhancement

Abstract Anaerobic digestion (AD) of Organic Fraction of Municipal Solid Waste (OFMSW), leads to a reduction of methane emission to the atmosphere besides production of bioenergy. In this work, applying moderate temperature thermal pretreatment at 70, 90 and 110°C for the durations of 30,75,120 and 180 minutes on relatively high solid concentration (16%) OFMSW AD using batch biomethane potential assays (BMP) under mesophilic conditions has been studied. To evaluate the effects of each temperature and time of pretreatment and their interactions on methane production, factorial experiments in completely randomized design were implemented. The criteria used for deciding on the effectiveness of the thermal pretreatments were the methane enhancement and net energy production. Though, all the aforementioned thermal pretreatments increased methane yield, the energy balance evaluation revealed that the recovery of bioenergy is feasible for some of these pretreatments and could contribute to a positive energy balance. The best result of methane production (342.66 ± 6.11 ml CH4/g VS), which was approximately 34% higher compared with the specific methane production of untreated OFMSW, was obtained by implementing pretreatment at 90°C for 120 minutes as well as the net energy generation of 57.26 KWh/ton, resulting from applying this thermal pretreatment.

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