Performance Evaluation of a Large-Scale Swine Manure Mesophilic Biogas Plant in China

2017 ◽  
Vol 60 (5) ◽  
pp. 1713-1720 ◽  
Author(s):  
Yi Wang ◽  
Wanqin Zhang ◽  
Hongmin Dong ◽  
Zhiping Zhu ◽  
Baoming Li
Keyword(s):  
Methane Production ◽  
Large Scale ◽  
Flow Reactor ◽  
Biogas Production ◽  
Plug Flow ◽  
Swine Manure ◽  
Energy System ◽  
Biogas Plant ◽  
Waste To Energy ◽  
Organic Loading Rate

Abstract. With the rapid growth of large-scale and intensive swine farms have come many ecological and environmental problems associated with the substantially increased and concentrated animal waste production. In this article, a swine manure and flushed slurry to renewable energy management system is present and discussed. This system was installed in a commercial feeder-to-finish swine farm with 18,000 head of swine in Beijing, China, and included two mesophilic upflow solids reactors (USRI and USRII, 500 m3 and 700 m3) and one psychrophilic plug-flow reactor (PFR, 1000 m3). In this study, USRII was monitored throughout a whole year to evaluate the performance of this swine waste to energy system. The biogas plant used mixed solid swine manure and flushed slurry as substrate with a relatively low organic loading rate (OLR) of 0.7 to 1.8 kg volatile solids (VS) m-3 d-1. The hydraulic retention time (HRT) varied from 15 to 22 days depending on the season. Less added water contributed to the longer HRT and more concentrated influent in winter. In winter, the specific methane production (SMP) of the digester was 0.43 m3 CH4 kg-1 VSadded, which was slightly lower than the value reported in Europe (0.45 m3 CH4 kg-1 VSadded) but about 48.3% higher than that in Asia (0.29 m3 CH4 kg-1 VSadded). This indicated that the performance of this USR in winter was stable, with a higher biogas production, and up to 90% of the VS was removed as well. However, the low OLR limited the volumetric methane production rate to only 0.21 to 0.57 m3 m-3 d-1. Keywords: Flushed slurry, Large-scale biogas plant, Monitoring, Performance, Swine manure.

scholarly journals Optimization of Hydrolysis-Acidogenesis Phase of Swine Manure for Biogas Production Using Two-Stage Anaerobic Fermentation

Processes ◽  
2021 ◽  
Vol 9 (8) ◽  
pp. 1324
Author(s):  
Chiu-Yue Lin ◽  
Wai Siong Chai ◽  
Chyi-How Lay ◽  
Chin-Chao Chen ◽  
Chun-Yi Lee ◽  
...  
Keyword(s):  
Methane Production ◽  
Anaerobic Fermentation ◽  
Biogas Production ◽  
Swine Manure ◽  
Organic Loading Rate ◽  
Pig Manure ◽  
Volatile Acid ◽  
Two Stage ◽  
Batch Operation ◽  
Stage System

The traditional pig manure wastewater treatment in Taiwan has been low in methane production efficiency due to unstable influent concentration, wastewater volume, and quality. Two-stage anaerobic systems, in contrast, have the advantage of buffering the organic loading rate in the first stage (hydrolysis-acidogenesis phase), allowing a more constant feeding rate to the second stage (methanogenesis phase). Response surface methodology was applied to optimize the operational period (0.5–2.0 d) and initial operational pH (4–10) for hydrolysis and acidogenesis of the swine manure (total solid 5.3%) at 35 °C in batch operation mode. A methanogenesis verification experiment with the optimal condition of operational period 1.5 d and pH 6.5 using batch operation resulted in peak volatile acid production 7 g COD/L, methane production rate (MPR) 0.3 L-CH4/L-d, and methane yield (MY) 92 mL-CH4/g-CODre (chemical oxygen demand removed). Moreover, a two-stage system including a hydrolysis-acidogenesis reactor with the optimal operating condition and a methanogenesis reactor provided an average MPR 163 mL/L-d and MY 38 mL/g volatile solids, which values are 60% higher than those of a single-stage system; both systems have similar dominant methane-producing species of Firmicutes and Bacteroidetes with each having around 30%–40%. The advantages of a two-stage anaerobic fermentation system in treating swine manure for biogas production are obvious.

Efficient biogas production from cattle manure in a plug flow reactor: A large scale long term study

2019 ◽  
Vol 278 ◽  
pp. 450-455 ◽  
Author(s):  
Lili Dong ◽  
Guangli Cao ◽  
Xianzhang Guo ◽  
Tianshu Liu ◽  
Jiwen Wu ◽  
...  
Keyword(s):  
Large Scale ◽  
Flow Reactor ◽  
Biogas Production ◽  
Plug Flow ◽  
Cattle Manure ◽  
Plug Flow Reactor ◽  
Term Study ◽  
Long Term Study

Biogas Production Using Anaerobic Digestion of Industrial Waste

2016 ◽  
Vol 832 ◽  
pp. 55-62
Author(s):  
Ján Gaduš ◽  
Tomáš Giertl ◽  
Viera Kažimírová
Keyword(s):  
Anaerobic Digestion ◽  
Industrial Waste ◽  
Large Scale ◽  
Biogas Production ◽  
Biogas Plant ◽  
Parallel Operation ◽  
Paper Production ◽  
Biochemical Conversion ◽  
Mixed Biomass ◽  
Economic Balance

In the paper experiments and theory of biogas production using industrial waste from paper production as a co-substrate are described. The main aim of the experiments was to evaluate the sensitivity and applicability of the biochemical conversion using the anaerobic digestion of the mixed biomass in the pilot fermentor (5 m3), where the mesophillic temperature was maintained. It was in parallel operation with a large scale fermentor (100 m3). The research was carried out at the biogas plant in Kolíňany, which is a demonstration facility of the Slovak University of Agriculture in Nitra. The experiments proved that the waste arising from the paper production can be used in case of its appropriate dosing as an input substrate for biogas production, and thus it can improve the economic balance of the biogas plant.

scholarly journals Evaluation of Eco-Efficiency of Two Alternative Agricultural Biogas Plants

2018 ◽  
Vol 8 (11) ◽  
pp. 2083 ◽  
Author(s):  
Magdalena Muradin ◽  
Katarzyna Joachimiak-Lechman ◽  
Zenon Foltynowicz
Keyword(s):  
Waste Heat ◽  
Negative Impact ◽  
Biogas Production ◽  
Biogas Plant ◽  
Waste To Energy ◽  
Cost Calculation ◽  
Processing Plant ◽  
The European Union ◽  
Levelized Cost Of Electricity ◽  
Biogas Plants

Implementation of the circular economy is one of the priorities of the European Union, and energy efficiency is one of its pillars. This article discusses an effective use of agri-food industry waste for the purposes of waste-to-energy in biogas plants. Its basic objective is the comparative assessment of the eco-efficiency of biogas production depending on the type of feedstock used, its transport and possibility to use generated heat. The environmental impact of the analysed installations was assessed with the application of the Life Cycle Assessment (LCA) methodology. Cost calculation was performed using the Levelized Cost of Electricity (LCOE) method. The LCA analysis indicated that a biogas plant with a lower level of waste heat use where substrates were delivered by wheeled transport has a negative impact on the environment. The structure of distributed energy production cost indicates a substantial share of feedstock supply costs in the total value of the LCOE ratio. Thus, the factor affecting the achievement of high eco-efficiency is the location of a biogas plant in the vicinity of an agri-food processing plant, from which the basic feedstock for biogas production is supplied with the transmission pipeline, whereas heat is transferred for the needs of production processes in a processing plant or farm.

scholarly journals Evaluation of Anaerobic Digestion of Dairy Wastewater in an Innovative Multi-Section Horizontal Flow Reactor

Energies ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2392 ◽  
Author(s):  
Marcin Dębowski ◽  
Marcin Zieliński ◽  
Marta Kisielewska ◽  
Joanna Kazimierowicz
Keyword(s):  
Wastewater Treatment ◽  
Anaerobic Digestion ◽  
Flow Reactor ◽  
Biogas Production ◽  
Oxygen Demand ◽  
Methane Content ◽  
Dairy Wastewater ◽  
Horizontal Flow ◽  
Organic Loading Rate ◽  
Biogas Yield

The aim of this study was the performance evaluation of anaerobic digestion of dairy wastewater in a multi-section horizontal flow reactor (HFAR) equipped with microwave and ultrasonic generators to stimulate biochemical processes. The effects of increasing organic loading rate (OLR) ranging from 1.0 g chemical oxygen demand (COD)/L·d to 4.0 g COD/L·d on treatment performance, biogas production, and percentage of methane yield were determined. The highest organic compounds removals (about 85% as COD and total organic carbon—TOC) were obtained at OLR of 1.0–2.0 g COD/L·d. The highest biogas yield of 0.33 ± 0.03 L/g COD removed and methane content in biogas of 68.1 ± 5.8% were recorded at OLR of 1.0 g COD/L·d, while at OLR of 2.0 g COD/L·d it was 0.31 ± 0.02 L/COD removed and 66.3 ± 5.7%, respectively. Increasing of the OLR led to a reduction in biogas productivity as well as a decrease in methane content in biogas. The best technological effects were recorded in series with an operating mode of ultrasonic generators of 2 min work/28 min break. More intensive sonication reduced the efficiency of anaerobic digestion of dairy wastewater as well as biogas production. A low nutrient removal efficiency was observed in all tested series of the experiment, which ranged from 2.04 ± 0.38 to 4.59 ± 0.68% for phosphorus and from 9.67 ± 3.36 to 20.36 ± 0.32% for nitrogen. The effects obtained in the study (referring to the efficiency of wastewater treatment, biogas production, as well as to the results of economic analysis) proved that the HFAR can be competitive to existing industrial technologies for food wastewater treatment.

Improvement of biogas production in plug flow reactor using biogas slurry pretreated cornstalk

2020 ◽  
Vol 9 ◽  
pp. 100378 ◽  
Author(s):  
Lili Dong ◽  
Guangli Cao ◽  
Yushi Tian ◽  
Jiwen Wu ◽  
Chunshuang Zhou ◽  
...  
Keyword(s):  
Flow Reactor ◽  
Biogas Production ◽  
Plug Flow ◽  
Plug Flow Reactor ◽  
Biogas Slurry

scholarly journals Narasin as a Manure Additive to Reduce Methane Production from Swine Manure

2018 ◽  
Vol 61 (3) ◽  
pp. 943-953
Author(s):  
Daniel S. Andersen ◽  
Fan Yang ◽  
Steven L. Trabue ◽  
Brian J. Kerr ◽  
Adina Howe
Keyword(s):  
Methane Production ◽  
Biogas Production ◽  
Safety Concern ◽  
Swine Manure ◽  
Inhibitory Effect ◽  
Gas Production ◽  
Dose Rates ◽  
Deep Pit ◽  
Sugar Addition ◽  
Swine Operations

Abstract. High levels of methane production from swine operations have been associated with foam accumulation in deep-pit manure storage systems. This foam poses both a safety concern (i.e., flash fires) and operational challenges in managing stored manure. Mitigating methane production is one approach to controlling foam accumulation. In this study, swine manures obtained from three deep-pit storage barns in central Iowa were dosed with narasin to evaluate its inhibitory effects on methane and biogas production. Dose rates ranged from 0 to 3.0 mg narasin kg-1 manure. Overall, methane rates were reduced by 9% for each mg of narasin added per kg of manure, and this reduction was effective for up to 25 days. However, the inhibitory effect weakened with time such that no statistical difference in cumulative methane production between samples dosed with narasin and undosed controls could be detected after 120 days of incubation. In addition to methane rates, narasin addition reduced the degradation of total and volatile solids in the manure by 1.9% and 2.6%, respectively, for each mg of narasin added per kg of manure. Additional study treatments included sugar (10 g kg-1 manure) with and without narasin (1.5 mg narasin kg-1 manure). Results from this treatment showed that methane production was initially increased by the sugar addition, but the effect lasted less than six days, at which point cumulative methane production was similar to the control. When treated with both narasin and sugar, the inhibitory effect did not impact gas production during the sugar digestion phase but did reduce methane and biogas production thereafter. The addition of sugar and the rate of narasin addition caused changes to the microbial community as compared to the control. Overall, the results indicated that narasin can be an effective additive for reducing methane emission from swine manure, but further study is needed to recommend dosing frequency and to evaluate how continuous addition of manure impacts narasin effectiveness. Keywords: Biogas, Manure management, Manure treatment, Methane, Narasin, Swine manure, Swine production.

scholarly journals The use of biogas in energetics

2006 ◽  
pp. 41-46
Author(s):  
László Sallai ◽  
Tamás Molnár ◽  
Dezső Fodor
Keyword(s):  
Large Scale ◽  
Biogas Production ◽  
Electric Energy ◽  
Biogas Plant ◽  
Hot Water ◽  
Economic Conditions ◽  
Processing Plant ◽  
Economic Management ◽  
Poultry Processing ◽  
Using Data

In our study we examine the technical facilities of biogas production in the economic environment of a given region. The region can be considered as typical: it has animal farms, a poultry-processing plant with the characteristic problems of environment load and by-product handling. Biogas can be used for energetic purposes, and, in large scale, it can be sold as electric energy. The heat coming from the engine and the generator can be collected in heat exchangers and can be used for preparing hot water and for heating. One third of the gained energy is electric, two thirds are heat. The aim of the local owner and the economic management is to increase the rate of cost-effectiveness in general. We examined the tecnnical and economic conditions of establishing a biogas plant (using data of an existing pigfarm). We planned the biogas plant and calculated the expected investment and operational costs and return.

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