scholarly journals Potential of biogas production from anaerobic co-digestion of fat, oil and grease waste and food waste

2018 ◽  
Vol 67 ◽  
pp. 02047 ◽  
Author(s):  
Reigina Sandriaty ◽  
Cindy Priadi ◽  
Septiana Kurnianingsih ◽  
Ayik Abdillah
Keyword(s):  
Anaerobic Digestion ◽  
Food Waste ◽  
Biogas Production ◽  
Potential Method ◽  
Methane Yield ◽  
Volatile Solid ◽  
Oil And Grease ◽  
Biochemical Methane Potential ◽  
Digestion Process ◽  
Methane Potential

The generation of fat, oil and grease (FOG) waste can be a nuisance hazard, but also a potential for resource recovery. FOG waste can be utilized as nutrient and energy source through anaerobic digestion which may increase methane yield but also increase presence of inhibitors. Using the biochemical methane potential method, this research is aimed to determine the effect of FOG waste in the co-digestion process of food waste (FW) to produce biogas. The research was conducted for 42 days at 37°C using FOG waste codigested with FW of 3 different volatile solid (VS) rasio which are 0.125, 0.3, and 0.5. The results showed that FOG waste combined with FW has a methane yield that may reach up to 485 ± 36.8 mL CH4/gr VS, the highest one produced by the 0.125 VS rasio mix. While the ratio of FOG waste with FW at 0.3 and 0.5 only produce 128 ± 195 and 4 ± 1.45 mL CH4/gr VS, respectively. The ratio of 0.125 also demonstrates the highest COD reduction of 56% compared to the other ratio which indicates the 0.125 FOG and FW ratio can be implemented to utilize FOG waste and increase methane yield during anaerobic digestion process.

scholarly journals Optimisation of C:N Ratio for Co-Digested Processed Industrial Food Waste and Sewage Sludge Using the BMP Test

2011 ◽  
Vol 9 (1) ◽  
Author(s):  
Zuhaib Siddiqui ◽  
N.J. Horan ◽  
Kofi Anaman
Keyword(s):  
Sewage Sludge ◽  
Food Waste ◽  
Biogas Production ◽  
C:N Ratio ◽  
Methane Yield ◽  
Biochemical Methane Potential ◽  
Volatile Solids ◽  
Methane Potential ◽  
Biomethane Production ◽  
Bmp Test

Biomethane production from processed industrial food waste (IFW) in admixture with sewage sludge (primary and waste activated sludge: PS and WAS) was evaluated at a range of C:N ratios using a standard biochemical methane potential (BMP) test. IFW alone had a C:N of 30 whereas for WAS it was 5.4 and thus the C:N ratio of the blends fell in that range. Increasing the IFW content in mix improves the methane potential by increasing both the cumulative biogas production and the rate of methane production. Optimum methane yield 239 mL/g VSremoved occurred at a C:N ratio of 15 which was achieved with a blend containing 11 percent (w/w) IFW. As the fraction of IFW in the blend increased, volatile solids (VS) destruction was increased and this led to a reduction in methane yield and amount of production. The highest destruction of volatile solids of 93 percent was achieved at C:N of 20 followed by C:N 30 and 15. A shortened BMP test is adequate for evaluating optimum admixtures.

scholarly journals Biochemical Methane Potential of Cork Boiling Wastewater at Different Inoculum to Substrate Ratios

2021 ◽  
Vol 11 (7) ◽  
pp. 3064
Author(s):  
Roberta Mota-Panizio ◽  
Manuel Jesús Hermoso-Orzáez ◽  
Luis Carmo-Calado ◽  
Gonçalo Lourinho ◽  
Paulo Sérgio Duque de Brito
Keyword(s):  
Anaerobic Digestion ◽  
Biogas Production ◽  
Treatment Plant ◽  
Organic Substrates ◽  
Biochemical Methane Potential ◽  
Volatile Solids ◽  
Working Volume ◽  
Methane Potential ◽  
Bmp Test ◽  
Cork Industry

The present study evaluates the digestion of cork boiling wastewater (CBW) through a biochemical methane potential (BMP) test. BMP assays were carried out with a working volume of 600 mL at a constant mesophilic temperature (35 °C). The experiment bottles contained CBW and inoculum (digested sludge from a wastewater treatment plant (WWTP)), with a ratio of inoculum/substrate (Ino/CBW) of 1:1 and 2:1 on the basis of volatile solids (VSs); the codigestion with food waste (FW) had a ratio of 2/0.7:0.3 (Ino/CBW:FW) and the codigestion with cow manure (CM) had a ratio of 2/0.5:0.5 (Ino/CBW:CM). Biogas and methane production was proportional to the inoculum substrate ratio (ISR) used. BMP tests have proved to be valuable for inferring the adequacy of anaerobic digestion to treat wastewater from the cork industry. The results indicate that the biomethane potential of CBWs for Ino/CBW ratios 1:1 and 2:1 is very low compared to other organic substrates. For the codigestion tests, the test with the Ino/CBW:CM ratio of 2/0.7:0.3 showed better biomethane yields, being in the expected values. This demonstrated that it is possible to perform the anaerobic digestion (AD) of CBW using a cosubstrate to increase biogas production and biomethane and to improve the quality of the final digestate.

The anaerobic digestion process of biogas production from food waste: Prospects and constraints

2019 ◽  
Vol 8 ◽  
pp. 100310 ◽  
Author(s):  
Sagor Kumar Pramanik ◽  
Fatihah Binti Suja ◽  
Shahrom Md Zain ◽  
Biplob Kumar Pramanik
Keyword(s):  
Anaerobic Digestion ◽  
Food Waste ◽  
Biogas Production ◽  
Anaerobic Digestion Process ◽  
Digestion Process

Anaerobic Digestion Process of Food Waste for Biogas Production: A Simulation Approach

2019 ◽  
Vol 42 (9) ◽  
pp. 1834-1839 ◽  
Author(s):  
Noorlisa Harun ◽  
Zuraini Hassan ◽  
Norazwina Zainol ◽  
Wan Hanisah Wan Ibrahim ◽  
Haslenda Hashim
Keyword(s):  
Anaerobic Digestion ◽  
Food Waste ◽  
Biogas Production ◽  
Simulation Approach ◽  
Anaerobic Digestion Process ◽  
Digestion Process

Study of Anaerobic Digestion of Model Kitchen Waste

2014 ◽  
Vol 955-959 ◽  
pp. 2692-2696 ◽  
Author(s):  
Li Fan Liu ◽  
Yong Wei Liao ◽  
Jie Liang ◽  
Shu Ting Lai
Keyword(s):  
Anaerobic Digestion ◽  
Carbon Concentration ◽  
Dry Matter ◽  
Biogas Production ◽  
Total Solid ◽  
Volatile Solid ◽  
Kitchen Waste ◽  
Operational Conditions ◽  
Digestion Process ◽  
Seed Sludge

The characteristics such as pH, dry matter, carbon concentration, the total solid and volatile solid of kitchen wastes produced by a canteen in Guangzhou were measured. The anaerobic digestion process performances were evaluated through the examination of operational conditions like activated sludge inoculation, temperature on SS, biogas production, COD concentration and pH in the reactor. When the proportion between kitchen wastes to seed sludge inoculation was 1:1, the biogas production reached the peak at 45 °C. The kitchen waste pH decreased at the first four days then increased adversely after 4 days digestion, but COD concentration showed the opposite variation.

Anaerobic digestion of sunflower oil cake: a current overview

2013 ◽  
Vol 67 (2) ◽  
pp. 410-417 ◽  
Author(s):  
M. A. De la Rubia ◽  
V. Fernández-Cegrí ◽  
F. Raposo ◽  
R. Borja
Keyword(s):  
Anaerobic Digestion ◽  
Sunflower Oil ◽  
Physical Structure ◽  
Methane Yield ◽  
Organic Loading Rate ◽  
Biochemical Methane Potential ◽  
In Series ◽  
Methane Potential ◽  
Bmp Test ◽  
Sunflower Oil Cake

Due to the chemical and physical structure of a lignocellulosic biomass, its anaerobic digestion (AD) is a slow and difficult process. In this paper, the results obtained from a batch biochemical methane potential (BMP) test and fed-batch mesophilic AD assays of sunflower oil cake (SuOC) are presented. Taking into account the low digestibility shown during one-stage experiments the methane yield decreased considerably after increasing the organic loading rate (OLR) from 2 to 3 g VS L−1 d−1, SuOC was subjected to a two-stage AD process (hydrolytic-acidogenic and methanogenic stages), in two separate reactors operating in series where the methanogenic stage became acidified (with >1,600 mg acetic acid L−1) at an OLR as low as 2 g VS L−1 d−1. More recently, BMP assays were carried out after mechanical, thermal, and ultrasonic pre-treatments to determine the best option on the basis of the methane yield obtained.

scholarly journals Enhancing anaerobic digestion of food waste through biochemical methane potential assays at different substrate: inoculum ratios

2018 ◽  
Vol 71 ◽  
pp. 612-617 ◽  
Author(s):  
Shakira R. Hobbs ◽  
Amy E. Landis ◽  
Bruce E. Rittmann ◽  
Michelle N. Young ◽  
Prathap Parameswaran
Keyword(s):  
Anaerobic Digestion ◽  
Food Waste ◽  
Biochemical Methane Potential ◽  
Methane Potential

scholarly journals Influence of the Preliminary Storage on Methane Yield of Anaerobic Digestion of the Organic Fraction of Municipal Solid Waste

Processes ◽  
2021 ◽  
Vol 9 (11) ◽  
pp. 2017
Author(s):  
Domenica Pangallo ◽  
Altea Pedullà ◽  
Demetrio Antonio Zema ◽  
Paolo S. Calabrò
Keyword(s):  
Anaerobic Digestion ◽  
Municipal Solid Waste ◽  
Solid Waste ◽  
Storage Time ◽  
Logistic Models ◽  
Methane Yield ◽  
Organic Fraction ◽  
Biochemical Methane Potential ◽  
First Order ◽  
Methane Potential

Anaerobic digestion (AD) is a suitable management option for the energy valorization of many wastes, including the organic fraction of municipal solid waste (OFMSW). However, in some cases, long storage after the separate collection of this waste is required for management reasons, especially when the amount of waste to be treated temporarily exceeds the capacity of available AD plants. This study evaluates the biochemical methane potential (BMP) of the OFMSW after preliminary storage of 2, 6, and 10 days, in order to assess whether they are still suitable for AD or not. Moreover, the accuracy of three kinetic models (first order, Gompertz, and logistic models) in estimating the methane yield of stored OFMSW is tested. The resulting methane yield was between about 500 and 650 NmL·gVS−1 and slightly increased with the increase of the storage time after collection. Overall, this study has demonstrated that storage of OFMSW, when the collected amount of solid waste exceeds the treatment capacity of AD plants, a storage time up to 10 days does not impact the methane yield of the process.

scholarly journals Biogas Production from Physicochemically Pretreated Grass Lawn Waste: Comparison of Different Process Schemes

Molecules ◽  
2020 ◽  
Vol 25 (2) ◽  
pp. 296 ◽  
Author(s):  
Georgia Antonopoulou ◽  
Dimitrios Vayenas ◽  
Gerasimos Lyberatos
Keyword(s):  
Biogas Production ◽  
Economic Assessment ◽  
Methane Yield ◽  
Biochemical Methane Potential ◽  
Naoh Pretreatment ◽  
Volatile Solids ◽  
Methane Potential ◽  
Whole Slurry ◽  
Almost All ◽  
Pretreated Biomass

Various pretreatment methods, such as thermal, alkaline and acid, were applied on grass lawn (GL) waste and the effect of each pretreatment method on the Biochemical Methane Potential was evaluated for two options, namely using the whole slurry resulting from pretreatment or the separate solid and liquid fractions obtained. In addition, the effect of each pretreatment on carbohydrate solubilization and lignocellulossic content fractionation (to cellulose, hemicellulose, lignin) was also evaluated. The experimental results showed that the methane yield was enhanced with alkaline pretreatment and, the higher the NaOH concentration (20 g/100 gTotal Solids (TS)), the higher was the methane yield observed (427.07 L CH4/kg Volatile Solids (VS), which was almost 25.7% higher than the BMP of the untreated GL). Comparing the BMP obtained under the two options, i.e., that of the whole pretreatment slurry with the sum of the BMPs of both fractions, it was found that direct anaerobic digestion without separation of the pretreated biomass was favored, in almost all cases. A preliminary energy balance and economic assessment indicated that the process could be sustainable, leading to a positive net heat energy only when using a more concentrated pretreated slurry (i.e., 20% organic loading), or when applying NaOH pretreatment at a lower chemical loading.

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