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

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.

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Effect of applied voltage and temperature on methane production and microbial community in microbial electrochemical anaerobic digestion systems treating swine manure

Journal of Industrial Microbiology & Biotechnology ◽

10.1007/s10295-019-02182-6 ◽

2019 ◽

Vol 46 (7) ◽

pp. 911-923 ◽

Cited By ~ 6

Author(s):

Jaecheul Yu ◽

Sunwon Kim ◽

O-Seob Kwon

Keyword(s):

Microbial Community ◽

Anaerobic Digestion ◽

Applied Voltage ◽

Methane Production ◽

Swine Manure

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Enhanced solubilization of solid organics and methane production by anaerobic digestion of swine manure under nano-bubble water addition

Bioresource Technology ◽

10.1016/j.biortech.2019.122512 ◽

2020 ◽

Vol 299 ◽

pp. 122512 ◽

Cited By ~ 2

Author(s):

Yujie Fan ◽

Zhongfang Lei ◽

Zitao Guo ◽

Weiwei Huang ◽

Di Wang ◽

...

Keyword(s):

Anaerobic Digestion ◽

Methane Production ◽

Swine Manure ◽

Water Addition

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Feasibility Study of Methane Generation from Swine Manure and Eichhornia Crassipes [Mart.] Solms

Research Journal of Chemistry and Environment ◽

10.25303/2512rjce6067 ◽

2021 ◽

Vol 25 (12) ◽

pp. 60-67

Author(s):

Vanatpornratt Sawasdee ◽

Nipon Pisutpaisal

Keyword(s):

Methane Production ◽

Water Hyacinth ◽

Eichhornia Crassipes ◽

Net Present Value ◽

Swine Manure ◽

Treatment Method ◽

Economic Feasibility ◽

Cost Ratio ◽

Methane Generation ◽

Pre Treatment

This research was made to study the feasibility of methane generation from swine manure and water hyacinth (Eichhornia Crassipes [Mart.] Solms) under mesophilic conditions. The component of Eichhornia Crassipes [Mart.] Solms was analyzed before pretreatment that was 21.47% cellulose, 14.98% hemicellulose and 9.88% lignin respectively. Eichhornia Crassipes [Mart.] Solms was pre-treated by using the physical pre-treatment and physicalchemical pre-treatment method. The experiment was batch-test operated within forty days of fermentation when incubated at 37 °C. The highest methane production was obtained from water hyacinth physical pre-treatment with a swine manure ratio of 50:50, Hmax 490 ml, Rmax 0.90 ml h-1 and a yield of 135 ml CH4/ g TVS removal respectively. In terms of physicalchemical pre-treatment for water hyacinth, the highest methane production was obtained with water hyacinth to swine manure 50:50 ratio with Hmax 290 ml, Rmax 0.59 ml h-1 and a yield of 130 ml CH4/ g TVS removal respectively. These results showed that the physical pre-treatment method was suitable as a water hyacinth pretreatment for methane production. In terms of economic feasibility, it was evaluated that the cost, net present value (NPV), a benefit to cost ratio (B/C ratio) and payback period (PBP) were 64.27 USD, 12,116.60, 10.52 and thirteen months respectively. Finally, this research will be useful for aquatic invasive species management and biogas production.

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Predicting Methane Production Potential of Anaerobic Co-digestion of Swine Manure and Food Waste

Environmental Engineering Research ◽

10.4491/eer.2008.13.2.093 ◽

2008 ◽

Vol 13 (2) ◽

pp. 93-97 ◽

Cited By ~ 27

Author(s):

Joung-Du Shin ◽

Sung-Su Han ◽

Ki-Cheol Eom ◽

Shi-Hwu Sung ◽

Sang-Won Park ◽

...

Keyword(s):

Food Waste ◽

Methane Production ◽

Swine Manure ◽

Production Potential ◽

Methane Production Potential

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Effects of magnetite on anaerobic digestion of swine manure: Attention to methane production and fate of antibiotic resistance genes

Bioresource Technology ◽

10.1016/j.biortech.2019.121847 ◽

2019 ◽

Vol 291 ◽

pp. 121847 ◽

Cited By ~ 9

Author(s):

Junya Zhang ◽

Tiedong Lu ◽

Ziyue Wang ◽

Yawei Wang ◽

Hui Zhong ◽

...

Keyword(s):

Antibiotic Resistance ◽

Anaerobic Digestion ◽

Resistance Genes ◽

Methane Production ◽

Swine Manure ◽

Antibiotic Resistance Genes

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

Transactions of the ASABE ◽

10.13031/trans.12216 ◽

2017 ◽

Vol 60 (5) ◽

pp. 1713-1720 ◽

Cited By ~ 1

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.

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

Processes ◽

10.3390/pr9081324 ◽

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.

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