Production of Biogas Using Dairy Manure as Feedstock and Rumen Fluid as Inoculum

Methane gas is a valuable gas that can be used as a source of energy, either used for cooking fuel or small-scale electricity production. The most suitable application of the methane gas is in rural areas which rarely have the source of energy. It can reduce the dependency of using diesel or gasoline in order to obtain electricity. This study focused on the use of dairy manure as the feedstock and the rumen fluid as the innoculant to improve the production of biogas in rural areas application. The amount of rumen fluid and water added were varied to prepare 0 %, 12.5 %, 25 %, 37.5 % and 50 % rumen fluid. Besides that, the pH level was monitored and its effects towards biogas production was discussed. From the experiment, sample with 37.5 % rumen fluid gave the highest biogas production, followed by 50 %, 25 %, 12.5 % and 0 % rumen fluid. The presence Rumen fluids have improved the biogas production for the anaerobic digestion.

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From biogas to biomethane: Techno-economic analysis of an anaerobic digestion power plant in a cattle/buffalo farm in central Italy

Journal of Agricultural Engineering ◽

10.4081/jae.2019.939 ◽

2019 ◽

Vol 50 (3) ◽

pp. 127-133 ◽

Cited By ~ 3

Author(s):

Ester Scotto di Perta ◽

Elena Cervelli ◽

Maria Pironti di Campagna ◽

Stefania Pindozzi

Keyword(s):

Anaerobic Digestion ◽

Economic Analysis ◽

Biogas Production ◽

Central Italy ◽

Hollow Fibre ◽

Operating Costs ◽

Electricity Production ◽

Small Scale ◽

Production Plant ◽

Biomethane Production

Anaerobic digestion (AD) is a mature technology commonly used for manure treatment, both for the stabilisation of waste and for the production of energy. The introduction of new incentives could represent an opportunity for biogas production, when the current feed-in-tariffs, which improved the financial feasibility of AD plants producing electricity will end. This paper examines the feasibility of reconverting an existing AD biogas production plant into a biomethane production plant. The AD plant, in this case study, is a two-stage reactor situated in the centre of Italy and mainly fed with livestock manure from both cows and buffaloes. The economic analysis of two hypotheses is provided: i) continuing the electricity production from biogas after the end of the current incentives (2025); ii) considering the new incentives program for the biomethane and reconverting the plant, using hollow-fibre membranes for the purification of the raw biogas (SEPURAN® Green modules, EnviTec). For this purpose, investment and operating costs, based on plant monitoring data (2105.3 m3 d–1, Biogas production; 4432.9 kWh d–1, electricity production) as well as on market analysis for costs evaluation were considered. The mean biogas production for the considered year was about 30% less than the expected production, indicated by producer, highlighting the need for the optimisation of the management of the reactors. Moreover, based on the averaged methane production (June 2017-June 2018), results show that: i) plant conversion for the biomethane production is not suitable for small-scale plants, due to the high investment costs of upgrading technology (1.2 M€); ii) when current incentives end, the electricity production from biogas in the current plant may not be self-sufficient, due to the highly expensive operating costs. This paper provides a first analysis of the possible fate of the biogas plants under the new incentives.

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Trace Element Supplementation and Enzyme Addition to Enhance Biogas Production by Anaerobic Digestion of Chicken Litter

Energies ◽

10.3390/en13133477 ◽

2020 ◽

Vol 13 (13) ◽

pp. 3477

Author(s):

Navodita Bhatnagar ◽

David Ryan ◽

Richard Murphy ◽

Anne-Marie Enright

Keyword(s):

Anaerobic Digestion ◽

Trace Element ◽

Biogas Production ◽

Positive Control ◽

Negative Control ◽

Enzyme Treatment ◽

Small Scale ◽

Volatile Solids ◽

Chicken Litter ◽

Set Up

Anaerobic digestion (AD) of chicken litter (CL) is a viable alternative to disposal. However, methane yields from this primarily organic waste are quite low when mono-digested. This paper discusses the effect of an enzyme cocktail, trace element (TE) supplementation and selenium (Se) addition in small-scale batch biomethane potential (BMP) assays to enhance the AD of CL. Eleven different assays were set up in triplicate including assays containing only inoculum (blank), only CL (negative control) and cellulose and inoculum (positive control). The results indicate that both enzyme treatment and trace element supplementation enhanced the biogas and methane yield. The highest specific biogas and methane yields were noted for 1% enzyme-treated CL of 835.2 L/kg volatile solids (VS) and 460.8 L/kg VS, respectively. Usually, mono-digestion of CL is low due to high nitrogen content and the presence of recalcitrant lignocellulosic material from the bedding material. Enzyme treatment performed better than the addition of the TE mix and Se.

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Degradation of veterinary antibiotics during anaerobic digestion of dairy manure

Water Practice & Technology ◽

10.2166/wpt.2015.061 ◽

2015 ◽

Vol 10 (3) ◽

pp. 532-537 ◽

Cited By ~ 3

Author(s):

Yumika Kitazono ◽

Ikko Ihara ◽

Kiyohiko Toyoda ◽

Kazutaka Umetsu

Keyword(s):

Anaerobic Digestion ◽

Biogas Production ◽

Dairy Manure ◽

Antibiotic Residues ◽

Veterinary Antibiotics ◽

Livestock Manure ◽

Anaerobic Digestion Process ◽

Digestion Process ◽

Antibiotic Degradation

This study evaluated antibiotic degradation and biogas production during anaerobic digestion of dairy manure contained two common veterinary antibiotics at 37 °C. After 18 days of digestion, the concentration of chlortetracycline (CTC) decreased more than 80% regardless of the initial CTC concentration. The concentration of cefazolin (CEZ) decreased from 10 to 0.08 mg/L in 6 days. Less than 50 mg/L CTC and 10 mg/L CEZ had negligible impact on biogas production during anaerobic digestion process. The result showed that the anaerobic digestion has a potential to degrade antibiotic residues in livestock manure.

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Impacts of Temperatures on Biogas Production in Dairy Manure Anaerobic Digestion

International Journal of Engineering and Technology ◽

10.7763/ijet.2012.v4.448 ◽

2012 ◽

Vol 4 (5) ◽

pp. 629-631 ◽

Cited By ~ 9

Author(s):

Pramod K. Pandey ◽

Michelle L. Soupir

Keyword(s):

Anaerobic Digestion ◽

Biogas Production ◽

Dairy Manure

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Mesophilic Anaerobic Digestion of Dairy Manure and Vegetable Waste Using Batch Reactor

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1008-1009.121 ◽

2014 ◽

Vol 1008-1009 ◽

pp. 121-126

Author(s):

Lin Jun Shi ◽

Wen Lan Liu ◽

Hui Fen Liu ◽

Wei Yu Zhang ◽

Li Tong Ban

Keyword(s):

Anaerobic Digestion ◽

Biogas Production ◽

Batch Reactor ◽

Theoretical Data ◽

Gas Production ◽

Dairy Manure ◽

Experimental Results ◽

Vegetable Waste ◽

Start Up ◽

Waste Mixture

Anaerobic digestion of single dairy manure, single vegetable waste, mixture of dairy manure and vegetable waste was conducted to produce biogas. Startup characteristic, leachate parameters and inoculation amount were investigated. The experimental results showed that anaerobic digestion can start up quickly with acclimated thickening sludge as inoculation sludge and 30% was appropriate inoculation percentage. Digestion of single dairy manure and mixture of dairy manure and vegetable waste appeared better buffering ability with higher alkalinity than single vegetable waste. Compared to single digestion of dairy manure or vegetable waste, mixture of dairy manure and vegetable waste is more suitable for anaerobic digestion. Under the conditions of TS=10% and T=(36±1)°C, cumulative biogas production of mixture of dairy manure and vegetable waste is 5281 mL during the period of 30 days and average daily gas production is about 176 mL. These results could provide theoretical data for practical biogas engineering.

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IMPROVEMENT OF BIOGAS PRODUCTION IN ANAEROBIC DIGESTION PROCESS

10.32006/eeep.2021.2.2631 ◽

2021 ◽

Vol 2021 (2/2021) ◽

pp. 26-31

Author(s):

Abdelhani Chaabna ◽

Samia Semcheddine

Keyword(s):

Anaerobic Digestion ◽

Rural Areas ◽

Control Method ◽

Sliding Mode ◽

Biogas Production ◽

Control Design ◽

Control Law ◽

Renewable Energy Resources ◽

Environmental Preservation ◽

Linear Technique

The production of biogas enables environmental preservation and sustainable development of rural areas and landlocked regions, as well as diversification of renewable energy resources. This paper is a contribution to improving the production of biogas by Sliding Mode Control (SMC). In the literature there are many models describing the behaviour of reactions during anaerobic digestion and used for control design. The AM2 model is one of the simplest models and can be exploited easily for the control design purposes. In this paper, the reduced model AM2 was exploited to develop and testing by simulations the robust control law SMC. The results obtained have proved the effectiveness of the control method proposed in this paper. A study of the robustness for monitoring and disturbances rejection demonstrated the great interest of this method, which is a non-linear technique and gives very good results in terms of robustness but it presents the problem of chattering. In practice, the chattering of the control action can cause premature wear of the actuators or parts of the system due to heavy oscillations. The chattering phenomenon is caused by the discontinuous term which appears in the control signal. This paper presents a solution to the chattering problem by replacing the discontinuous term with a continuous one. Different Simulations and comparisons are presented and interpreted with satisfactory results.

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The role of small-scale biogas production in rural areas for sustainable development in Germany and Peru

Energy for Sustainable Development ◽

10.1016/s0973-0826(08)60205-7 ◽

1996 ◽

Vol 3 (4) ◽

pp. 58-63 ◽

Cited By ~ 1

Author(s):

Edelgard Gruber ◽

Hermann Herz

Keyword(s):

Sustainable Development ◽

Rural Areas ◽

Biogas Production ◽

Small Scale

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Thermophilic Co-Digestion of the Organic Fraction of Municipal Solid Wastes—The Influence of Food Industry Wastes Addition on Biogas Production in Full-Scale Operation

Molecules ◽

10.3390/molecules23123146 ◽

2018 ◽

Vol 23 (12) ◽

pp. 3146 ◽

Cited By ~ 3

Author(s):

Przemysław Seruga ◽

Małgorzata Krzywonos ◽

Marta Wilk

Keyword(s):

Anaerobic Digestion ◽

Biogas Production ◽

Full Scale ◽

Solid Wastes ◽

Process Efficiency ◽

Electricity Production ◽

Organic Fraction ◽

Municipal Solid Wastes ◽

Biogas Yield ◽

Yield Increase

Anaerobic digestion (AD) has been used widely as a form of energy recovery by biogas production from the organic fraction of municipal solid wastes (OFMSW). The aim of this study was to evaluate the effect of the introduction of co-substrates (restaurant wastes, corn whole stillage, effluents from the cleaning of chocolate transportation tanks) on the thermophilic anaerobic digestion process of the mechanically separated organic fraction of municipal solid wastes in a full-scale mechanical-biological treatment (MBT) plant. Based on the results, it can be seen that co-digestion might bring benefits and process efficiency improvement, compared to mono-substrate digestion. The 15% addition of effluents from the cleaning of chocolate transportation tanks resulted in an increase in biogas yield by 31.6%, followed by a 68.5 kWh electricity production possibility. The introduction of 10% corn stillage as the feedstock resulted in a biogas yield increase by 27.0%. The 5% addition of restaurant wastes contributed to a biogas yield increase by 21.8%. The introduction of additional raw materials, in fixed proportions in relation to the basic substrate, increases biogas yield compared to substrates with a lower content of organic matter. In regard to substrates with high organic loads, such as restaurant waste, it allows them to be digested. Therefore, determining the proportion of different feedstocks to achieve the highest efficiency with stability is necessary.

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